drm-misc-fixes for v6.13-rc4:
- udma-buf fixes related to sealing.
- dma-buf build warning fix when debugfs is not enabled.
- Assorted drm/panel fixes.
- Correct error return in drm_dp_tunnel_mgr_create.
- Fix even more divide by zero in drm_mode_vrefresh.
- Fix FBDEV dependencies in Kconfig.
- Documentation fix for drm_sched_fini.
- IVPU NULL pointer, memory leak and WARN fix.
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/d0763051-87b7-483e-89e0-a9f993383450@linux.intel.com
Include <linux/property.h> directly to get device_property_read_u32().
Avoids the proxy include via <linux/backlight.h>
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Neil Armstrong <neil.armstrong@linaro.org>
Cc: Jessica Zhang <quic_jesszhan@quicinc.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20241011144632.90434-6-tzimmermann@suse.de
Include <linux/mod_devicetable.h> directly to get struct of_device_id.
Avoids the proxy include via <linux/backlight.h>
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Neil Armstrong <neil.armstrong@linaro.org>
Cc: Jessica Zhang <quic_jesszhan@quicinc.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20241011144632.90434-5-tzimmermann@suse.de
Include <linux/mod_devicetable.h> directly to get struct of_device_id.
Avoids the proxy include via <linux/backlight.h>
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Neil Armstrong <neil.armstrong@linaro.org>
Cc: Jessica Zhang <quic_jesszhan@quicinc.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20241011144632.90434-4-tzimmermann@suse.de
The shutdown function can be called when the display is already
unprepared. For example during reboot this trigger a kernel
backlog. Calling the drm_panel_unprepare, allow us to avoid
to trigger the kernel warning.
Fixes: 2e87bad7cd ("drm/panel: Add Synaptics R63353 panel driver")
Tested-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
Signed-off-by: Michael Trimarchi <michael@amarulasolutions.com>
Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Reviewed-by: Jessica Zhang <quic_jesszhan@quicinc.com>
Link: https://lore.kernel.org/r/20241205163002.1804784-1-dario.binacchi@amarulasolutions.com
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20241205163002.1804784-1-dario.binacchi@amarulasolutions.com
The v6.13-rc2 release included a bunch of breaking changes,
specifically the MODULE_IMPORT_NS commit.
Backmerge in order to fix them before the next pull-request.
Include the fix from Stephen Roswell.
Caused by commit
25c3fd1183 ("drm/virtio: Add a helper to map and note the dma addrs and lengths")
Interacting with commit
cdd30ebb1b ("module: Convert symbol namespace to string literal")
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Link: https://patchwork.freedesktop.org/patch/msgid/20241209121717.2abe8026@canb.auug.org.au
Signed-off-by: Maarten Lankhorst <dev@lankhorst.se>
drm_panel_init() was made to initialize the fields in |struct drm_panel|.
There is no need to separately initialize them again.
Drop the separate assignments that are redundant. Also fix up any uses
of `ctx->panel.dev` to use `dev` directly.
Reviewed-by: Jessica Zhang <quic_jesszhan@quicinc.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20241204093942.1374693-1-wenst@chromium.org
Signed-off-by: Chen-Yu Tsai <wenst@chromium.org>
The continual trickle of small conversion patches is grating on me, and
is really not helping. Just get rid of the 'remove_new' member
function, which is just an alias for the plain 'remove', and had a
comment to that effect:
/*
* .remove_new() is a relic from a prototype conversion of .remove().
* New drivers are supposed to implement .remove(). Once all drivers are
* converted to not use .remove_new any more, it will be dropped.
*/
This was just a tree-wide 'sed' script that replaced '.remove_new' with
'.remove', with some care taken to turn a subsequent tab into two tabs
to make things line up.
I did do some minimal manual whitespace adjustment for places that used
spaces to line things up.
Then I just removed the old (sic) .remove_new member function, and this
is the end result. No more unnecessary conversion noise.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Seems to be like NV140DRM-N61 but with touch. Haven't disassembled
the lid to look.
Due to lack of information, use the delay_200_500_e200 timings like
many other BOE panels do for now.
The raw EDID of the panel is:
00 ff ff ff ff ff ff 00 09 e5 93 0c 00 00 00 00
25 21 01 04 a5 1e 13 78 03 ee 95 a3 54 4c 99 26
0f 50 54 00 00 00 01 01 01 01 01 01 01 01 01 01
01 01 01 01 01 01 a4 57 c0 dc 80 78 78 50 30 20
f6 0c 2e bc 10 00 00 1a 6d 3a c0 dc 80 78 78 50
30 20 f6 0c 2e bc 10 00 00 1a 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 02
00 0d 36 ff 0a 3c 96 0f 09 15 96 00 00 00 01 8b
There are no timings in it, sadly.
Signed-off-by: Jens Glathe <jens.glathe@oldschoolsolutions.biz>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
[dianders: adjusted sort order]
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20241124-hp-omnibook-x14-v1-3-e4262f0254fa@oldschoolsolutions.biz
From DT point of view, in general, drivers should be asking for a
specific port number because their function is fixed in the binding.
of_graph_get_next_endpoint() doesn't match to this concept.
Simply replace
- of_graph_get_next_endpoint(xxx, NULL);
+ of_graph_get_endpoint_by_regs(xxx, 0, -1);
Link: https://lore.kernel.org/r/20240202174941.GA310089-robh@kernel.org
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/87frob3neo.wl-kuninori.morimoto.gx@renesas.com
This initial part of the panel driver was mostly generated by the
"linux-mdss-dsi-panel-driver-generator" tool [1], reading downstream
Android kernel file "dsi_panel_S6E88A0_AMS427AP24_qhd_octa_video.dtsi" [2].
On top of the generic output of the tool, there were a couple of changes
applied:
- Added mipi_dsi_dcs_set_display_on() to function s6e88a0_ams427ap24_on(),
otherwise the display does not show up.
- In functions s6e88a0_ams427ap24_on() and s6e88a0_ams427ap24_off()
changed DSI commands to multi context and used "accum_err" returns.
- In functions s6e88a0_ams427ap24_on() and s6e88a0_ams427ap24_off() replaced
msleep() by mipi_dsi_msleep().
- The function s6e88a0_ams427ap24_get_modes() was changed to make use of
drm_connector_helper_get_modes_fixed(). This also required to include
drm/drm_probe_helper.h.
- In function s6e88a0_ams427ap24_probe() registring the regulators was changed
to devm_regulator_bulk_get_const(). This required to change supplies in struct
s6e88a0_ams427ap24 to a pointer.
- Removed bool "prepared" from struct s6e88a0_ams427ap24 and according parts in
functions s6e88a0_ams427ap24_prepare() and s6e88a0_ams427ap24_unprepare().
- Removed include <linux/of.h>, it's not needed.
- Added comments to the mipi_dsi_dcs_write_seq_multi() lines in function
s6e88a0_ams427ap24_on().
[1] https://github.com/msm8916-mainline/linux-mdss-dsi-panel-driver-generator
[2] https://github.com/msm8916-mainline/linux-downstream/blob/GT-I9195I/drivers/video/msm/mdss/samsung/S6E88A0_AMS427AP24/dsi_panel_S6E88A0_AMS427AP24_qhd_octa_video.dtsi
Signed-off-by: Jakob Hauser <jahau@rocketmail.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/d92ef0036b66520bb6d1ec908165e776cf30c303.1730070570.git.jahau@rocketmail.com
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/d92ef0036b66520bb6d1ec908165e776cf30c303.1730070570.git.jahau@rocketmail.com
The Anbernic RG35XX devices use an SPI LCD panel from an unknown OEM,
with an NV3052C driver chip.
As discussed previously, the integrating vendor and device name are
preferred instead of the OEM serial. A previous patch corrected the
device tree binding and of_device_id in the NV3052C driver, however the
spi_device_id also needs correction.
Correct the spi_device_id for the RG35XX panel.
Signed-off-by: Ryan Walklin <ryan@testtoast.com>
Fixes: 76dce2a96c ("drm: panel: nv3052c: Correct WL-355608-A8 panel compatible")
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20241020083836.175733-1-ryan@testtoast.com
[DB: corrected the Fixes tag]
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
`ili9322_regmap_bus` is not modified and can be declared as const to
move its data to a read-only section.
Signed-off-by: Javier Carrasco <javier.carrasco.cruz@gmail.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240925-drm-const-regmap-v1-5-e609d502401b@gmail.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
The new driver needs the dsc helper code to be available:
x86_64-linux-ld: vmlinux.o: in function `s6e3ha8_amb577px01_wqhd_prepare':
panel-samsung-s6e3ha8.c:(.text+0x16b1e65): undefined reference to `drm_dsc_pps_payload_pack'
Select it from Kconfig as we do for other similar drivers.
Fixes: 779679d3c1 ("drm/panel: Add support for S6E3HA8 panel driver")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Jessica Zhang <quic_jesszhan@quicinc.com>
Link: https://lore.kernel.org/r/20241015153442.3757061-1-arnd@kernel.org
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20241015153442.3757061-1-arnd@kernel.org
The current panel brightness is only 360 nit. Adjust the power and gamma to
optimize the panel brightness. The brightness after adjustment is 390 nit.
Fixes: 3179338750 ("drm/panel: himax-hx83102: Support for IVO t109nw41 MIPI-DSI panel")
Signed-off-by: Cong Yang <yangcong5@huaqin.corp-partner.google.com>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20241011020819.1254157-1-yangcong5@huaqin.corp-partner.google.com
Changes the elida-kd35t133 panel to use multi style functions for
improved error handling.
Reviewed-by: Jessica Zhang <quic_jesszhan@quicinc.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Tejas Vipin <tejasvipin76@gmail.com>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240925080003.1250448-1-tejasvipin76@gmail.com
The commit introducing the Frida display started to write the
SETVCMOFF registers unconditionally, and some (not all!) Hydis
display seem to be affected by ghosting after the commit.
Make SETVCMOFF optional and only send these commands on the
Frida display for now.
Reported-by: Stefan Hansson <newbyte@postmarketos.org>
Fixes: 219a1f4909 ("drm/panel: nt35510: support FRIDA FRD400B25025-A-CTK")
Acked-by: Jessica Zhang <quic_jesszhan@quicinc.com>
Tested-by: Stefan Hansson <newbyte@postmarketos.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240908-fix-nt35510-v2-1-d4834b9cdb9b@linaro.org
make ts050_panel_data and ts050v2_panel_data static because they
are only used in drivers/gpu/drm/panel/panel-khadas-ts050.c,
and fix the following sparse warnings:
drivers/gpu/drm/panel/panel-khadas-ts050.c:620:32:
sparse: warning: symbol 'ts050_panel_data' was not declared. Should it be static?
drivers/gpu/drm/panel/panel-khadas-ts050.c:625:32:
sparse: warning: symbol 'ts050v2_panel_data' was not declared. Should it be static?
No functional changes intended.
Signed-off-by: Min-Hua Chen <minhuadotchen@gmail.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20240908133533.112894-1-minhuadotchen@gmail.com
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240908133533.112894-1-minhuadotchen@gmail.com
Changes the himax-hx83112a panel to use multi style functions for
improved error handling.
Signed-off-by: Tejas Vipin <tejasvipin76@gmail.com>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Jessica Zhang <quic_jesszhan@quicinc.com>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240904141521.554451-1-tejasvipin76@gmail.com
Changes the samsung-s6e3fa7 panel to use multi style functions for
improved error handling.
Signed-off-by: Tejas Vipin <tejasvipin76@gmail.com>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Jessica Zhang <quic_jesszhan@quicinc.com>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240902071019.351158-1-tejasvipin76@gmail.com
As per the previous dt-binding commit, update the WL-355608-A8 panel
compatible to reflect the the integrating device vendor and name as the
panel OEM is unknown.
Fixes: 62ea2eeba7 ("drm: panel: nv3052c: Add WL-355608-A8 panel")
Signed-off-by: Ryan Walklin <ryan@testtoast.com>
Signed-off-by: Maxime Ripard <mripard@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240904012456.35429-3-ryan@testtoast.com
Currently the DRM DSC functions are selected by the
DRM_DISPLAY_DP_HELPER Kconfig symbol. This is not optimal, since the DSI
code (both panel and host drivers) end up selecting the seemingly
irrelevant DP helpers. Split the DSC code to be guarded by the separate
DRM_DISPLAY_DSC_HELPER Kconfig symbol.
Reviewed-by: Jessica Zhang <quic_jesszhan@quicinc.com>
Reviewed-by: Marijn Suijten <marijn.suijten@somainline.org>
Acked-by: Rodrigo Vivi <rodrigo.vivi@intel.com> #i915
Acked-by: Maxime Ripard <mripard@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240704-panel-sw43408-fix-v6-1-3ea1c94bbb9b@linaro.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
This reverts commit 8ebb1fc2e6.
The panel should be handled through the samsung-atna33xc20 driver for
correct power up timings. Otherwise the backlight does not work correctly.
We have existing users of this panel through the generic "edp-panel"
compatible (e.g. the Qualcomm X1E80100 CRD), but the screen works only
partially in that configuration: It works after boot but once the screen
gets disabled it does not turn on again until after reboot. It behaves the
same way with the default "conservative" timings, so we might as well drop
the configuration from the panel-edp driver. That way, users with old DTBs
will get a warning and can move to the new driver.
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Stephan Gerhold <stephan.gerhold@linaro.org>
Reviewed-by: Johan Hovold <johan+linaro@kernel.org>
Tested-by: Johan Hovold <johan+linaro@kernel.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240715-x1e80100-crd-backlight-v2-2-31b7f2f658a3@linaro.org
Move the "exit sleep mode" and "set display on" command from
enable() to init() function.
As mentioned in the patch:
https://lore.kernel.org/all/20240624141926.5250-2-lvzhaoxiong@huaqin.corp-partner.google.com/
The Mediatek Soc DSI host has different modes in prepare() and
enable() functions, prepare() is in LP mode and enable() is in
HS mode. Since the "exit sleep mode" and "set display on"
command must also be sent in LP mode, so we also move "exit
sleep mode" and "set display on" command to the init() function.
We have no other actions in the enable() function after moves
"exit sleep mode" and "set display on", and we checked the call
of the enable() function during the "startup" process. It seems
that only one judgment was made in drm_panel_enabel(). If the
panel does not define enable(), the judgment will skip the
enable() and continue execution. This does not seem to have
any other effect, and we found that some drivers also seem
to have no enable() function added, for example:
panel-asus-z00t-tm5p5-n35596 / panel-boe-himax8279d...
In addition, we briefly tested the kingdisplay_kd101ne3 panel and
melfas_lmfbx101117480 panel, and it seems that there is no garbage
on the panel, so we delete enable() function.
After moving the "exit sleep mode" and "set display on" command
to the init() function, we no longer need additional delay
judgment, so we delete variables "exit_sleep_to_display_on_delay_ms"
and "display_on_delay_ms".
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Zhaoxiong Lv <lvzhaoxiong@huaqin.corp-partner.google.com>
Acked-by: Jessica Zhang <quic_jesszhan@quicinc.com>
Link: https://lore.kernel.org/r/20240807100429.13260-2-lvzhaoxiong@huaqin.corp-partner.google.com
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240807100429.13260-2-lvzhaoxiong@huaqin.corp-partner.google.com
The Anbernic RG28XX is a handheld gaming device with a 2.8 inch 480x640
display. Add support for the display panel.
This panel is driven by a variant of ST7701 driver IC internally,
confirmed by dumping and analyzing its BSP initialization sequence
by using a logic analyzer. It is very similar to the existing
densitron,dmt028vghmcmi-1a panel, but differs in some unknown
register values. Besides, it is connected via SPI, so add a new entry
for the panel.
Signed-off-by: Hironori KIKUCHI <kikuchan98@gmail.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Reviewed-by: Jessica Zhang <quic_jesszhan@quicinc.com>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20240804061503.881283-6-kikuchan98@gmail.com
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240804061503.881283-6-kikuchan98@gmail.com
The ST7701 supports not only MIPI DSI, but also SPI as an interface
for configuration. To support a panel connected via SPI with an RGB
parallel interface, add support for SPI using MIPI DBI helpers.
Signed-off-by: Hironori KIKUCHI <kikuchan98@gmail.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Reviewed-by: Jessica Zhang <quic_jesszhan@quicinc.com>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20240804061503.881283-5-kikuchan98@gmail.com
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240804061503.881283-5-kikuchan98@gmail.com
Replace FB_BLANK_ constants with their counterparts from the
backlight subsystem. The values are identical, so there's no
change in functionality or semantics.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Neil Armstrong <neil.armstrong@linaro.org>
Cc: Jessica Zhang <quic_jesszhan@quicinc.com>
Reviewed-by: Jessica Zhang <quic_jesszhan@quicinc.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240731122311.1143153-8-tzimmermann@suse.de
Replace FB_BLANK_ constants with their counterparts from the
backlight subsystem. The values are identical, so there's no
change in functionality or semantics.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Neil Armstrong <neil.armstrong@linaro.org>
Cc: Jessica Zhang <quic_jesszhan@quicinc.com>
Reviewed-by: Jessica Zhang <quic_jesszhan@quicinc.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240731122311.1143153-7-tzimmermann@suse.de
Replace FB_BLANK_ constants with their counterparts from the
backlight subsystem. The values are identical, so there's no
change in functionality or semantics.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Neil Armstrong <neil.armstrong@linaro.org>
Cc: Jessica Zhang <quic_jesszhan@quicinc.com>
Reviewed-by: Jessica Zhang <quic_jesszhan@quicinc.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240731122311.1143153-6-tzimmermann@suse.de
Replace FB_BLANK_ constants with their counterparts from the
backlight subsystem. The values are identical, so there's no
change in functionality or semantics.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Neil Armstrong <neil.armstrong@linaro.org>
Cc: Jessica Zhang <quic_jesszhan@quicinc.com>
Reviewed-by: Jessica Zhang <quic_jesszhan@quicinc.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240731122311.1143153-5-tzimmermann@suse.de
Replace FB_BLANK_ constants with their counterparts from the
backlight subsystem. The values are identical, so there's no
change in functionality or semantics.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Neil Armstrong <neil.armstrong@linaro.org>
Cc: Jessica Zhang <quic_jesszhan@quicinc.com>
Reviewed-by: Jessica Zhang <quic_jesszhan@quicinc.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240731122311.1143153-4-tzimmermann@suse.de
Use multi style wrapped functions for mipi_dsi in the
startek-kd070fhfid015 panel.
Signed-off-by: Tejas Vipin <tejasvipin76@gmail.com>
Reviewed-by: Jessica Zhang <quic_jesszhan@quicinc.com>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240806135949.468636-3-tejasvipin76@gmail.com
Add Densitron DMT028VGHMCMI-1D 480x640 TFT matrix 2.83 inch panel
attached to Ilitek ILI9806E DSI TCON into the ILI9806E driver.
Note that the Densitron panels use different TCONs, this driver is for
the later panel, use panel-ilitek-st7701.c for the former panel:
DMT028VGHMCMI-1A - ST7701
DMT028VGHMCMI-1D - ILI9806E
Signed-off-by: Marek Vasut <marex@denx.de>
Reviewed-by: Michael Walle <mwalle@kernel.org>
Link: https://lore.kernel.org/r/20240724005700.196073-2-marex@denx.de
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240724005700.196073-2-marex@denx.de
At shutdown if you've got a _properly_ coded DRM modeset driver then
you'll get these two warnings at shutdown time:
Skipping disable of already disabled panel
Skipping unprepare of already unprepared panel
These warnings are ugly and sound concerning, but they're actually a
sign of a properly working system. That's not great.
We're not ready to get rid of the calls to drm_panel_disable() and
drm_panel_unprepare() because we're not 100% convinced that all DRM
modeset drivers are properly calling drm_atomic_helper_shutdown() or
drm_helper_force_disable_all() at the right times. However, having the
warning show up for correctly working systems is bad.
As a bit of a workaround, add some "if" tests to try to avoid the
warning on correctly working systems. Also add some comments and
update the TODO items in the hopes that future developers won't be too
confused by what's going on here.
Suggested-by: Daniel Vetter <daniel@ffwll.ch>
Acked-by: Neil Armstrong <neil.armstrong@linaro.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240621134427.1.Ieb287c2c3ee3f6d3b0d5f49b29f746b93621749c@changeid
at removal, and a fix for qxl to prevent unpinned buffer access under
certain conditions.
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Merge tag 'drm-misc-next-fixes-2024-07-11' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-next
A fix for fbdev on big endian systems, a condition fix for a sharp panel
at removal, and a fix for qxl to prevent unpinned buffer access under
certain conditions.
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maxime Ripard <mripard@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240711-benign-rich-mouflon-2eeafe@houat
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Merge v6.10-rc6 into drm-next
The exynos-next pull is based on a newer -rc than drm-next. hence
backmerge first to make sure the unrelated conflicts we accumulated
don't end up randomly in the exynos merge pull, but are separated out.
Conflicts are all benign: Adjacent changes in amdgpu and fbdev-dma
code, and cherry-pick conflict in xe.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Currently, the init_code of the jd9365da driver is placed
in the enable() function and sent, but this seems to take
a long time. It takes 17ms to send each instruction (an init
code consists of about 200 instructions), so it takes
about 3.5s to send the init_code. So we moved the sending
of the inti_code to the prepare() function, and each
instruction seemed to take only 25μs.
We checked the DSI host and found that the difference in
command sending time is caused by the different modes of
the DSI host in prepare() and enable() functions.
Our DSI Host only supports sending cmd in LP mode, The
prepare() function can directly send init_code (LP->cmd)
in LP mode, but the enable() function is in HS mode and
needs to switch to LP mode before sending init code
(HS->LP->cmd->HS). Therefore, it takes longer to send
the command.
Signed-off-by: Zhaoxiong Lv <lvzhaoxiong@huaqin.corp-partner.google.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20240624141926.5250-2-lvzhaoxiong@huaqin.corp-partner.google.com
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240624141926.5250-2-lvzhaoxiong@huaqin.corp-partner.google.com
UAPI Changes:
Cross-subsystem Changes:
Core Changes:
- panic: Monochrome logo support, Various fixes
- ttm: Improve the number of page faults on some platforms, Fix test
build breakage with PREEMPT_RT, more test coverage and various test
improvements
Driver Changes:
- Add missing MODULE_DESCRIPTION where needed
- ipu-v3: Various fixes
- vc4: Monochrome TV support
- bridge:
- analogix_dp: Various improvements and reworks, handle AUX
transfers timeout
- tc358767: Fix DRM_BRIDGE_ATTACH_NO_CONNECTOR, Fix clock
calculations
- panels:
- More transitions to mipi_dsi wrapped functions
- New panels: Lincoln Technologies LCD197, Ortustech COM35H3P70ULC,
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Merge tag 'drm-misc-next-2024-06-27' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-next
drm-misc-next for 6.11:
UAPI Changes:
Cross-subsystem Changes:
Core Changes:
- panic: Monochrome logo support, Various fixes
- ttm: Improve the number of page faults on some platforms, Fix test
build breakage with PREEMPT_RT, more test coverage and various test
improvements
Driver Changes:
- Add missing MODULE_DESCRIPTION where needed
- ipu-v3: Various fixes
- vc4: Monochrome TV support
- bridge:
- analogix_dp: Various improvements and reworks, handle AUX
transfers timeout
- tc358767: Fix DRM_BRIDGE_ATTACH_NO_CONNECTOR, Fix clock
calculations
- panels:
- More transitions to mipi_dsi wrapped functions
- New panels: Lincoln Technologies LCD197, Ortustech COM35H3P70ULC,
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maxime Ripard <mripard@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240627-congenial-pistachio-nyala-848cf4@houat
Use functions introduced in commit 966e397e4f ("drm/mipi-dsi:
Introduce mipi_dsi_*_write_seq_multi()") and commit f79d6d28d8
("drm/mipi-dsi: wrap more functions for streamline handling") for the
raydium-rm692e5 panel.
Additionally, the error handling in rm692e5_prepare() is changed to
properly power the panel off in the case of a wider range of
initialization commands failing than before.
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Tejas Vipin <tejasvipin76@gmail.com>
Link: https://lore.kernel.org/r/20240620181051.102173-1-tejasvipin76@gmail.com
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240620181051.102173-1-tejasvipin76@gmail.com
UAPI Changes:
Cross-subsystem Changes:
Core Changes:
- Sprinkle MODULE_DESCRIPTIONS everywhere they are missing
- bridge: Remove drm_bridge_chain_mode_fixup
- ci: Require a more recent version of mesa, improve farm estup and
test generation
- mipi-dbi: Remove mipi_dbi_machine_little_endian, make SPI bits per
word configurable, support RGB888, and allow pixel formats to be
specified in the DT.
- mm: Remove drm_mm_replace_node
- panic: Allow to dump kmsg to the screen
- print: Add a drm prefix to warn level messages too, remove
___drm_dbg, consolidate prefix handling
Driver Changes:
- sun4i: Rework the blender setup for DE2
- bridges:
- bridge-connector: Plumb in the new HDMI helpers
- samsung-dsim: Fix timings calculation
- tc358767: Plenty of small fixes
- panels:
- More cleanup of prepare / enable state tracking in drivers
- New panel: PrimeView PM070WL4,
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Merge tag 'drm-misc-next-2024-06-13' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-next
drm-misc-next for 6.11:
UAPI Changes:
Cross-subsystem Changes:
Core Changes:
- Sprinkle MODULE_DESCRIPTIONS everywhere they are missing
- bridge: Remove drm_bridge_chain_mode_fixup
- ci: Require a more recent version of mesa, improve farm estup and
test generation
- mipi-dbi: Remove mipi_dbi_machine_little_endian, make SPI bits per
word configurable, support RGB888, and allow pixel formats to be
specified in the DT.
- mm: Remove drm_mm_replace_node
- panic: Allow to dump kmsg to the screen
- print: Add a drm prefix to warn level messages too, remove
___drm_dbg, consolidate prefix handling
Driver Changes:
- sun4i: Rework the blender setup for DE2
- bridges:
- bridge-connector: Plumb in the new HDMI helpers
- samsung-dsim: Fix timings calculation
- tc358767: Plenty of small fixes
- panels:
- More cleanup of prepare / enable state tracking in drivers
- New panel: PrimeView PM070WL4,
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maxime Ripard <mripard@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240613-cicada-of-infinite-unity-0955ca@houat
UAPI Changes:
Cross-subsystem Changes:
- dma-buf: Warn when reserving 0 fence slots, internal API
enhancements for heaps
Core Changes:
Driver Changes:
- atmel-hlcdc: Support XLCDC in sam9x7
- msm: Validate registers XML description against schema in CI
- v3d: Fix build warning
- bridges:
- analogix_dp: Various improvements
- panels:
- New panel: WL-355608-A8
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Merge tag 'drm-misc-next-2024-06-06' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-next
drm-misc-next for 6.10:
UAPI Changes:
Cross-subsystem Changes:
- dma-buf: Warn when reserving 0 fence slots, internal API
enhancements for heaps
Core Changes:
Driver Changes:
- atmel-hlcdc: Support XLCDC in sam9x7
- msm: Validate registers XML description against schema in CI
- v3d: Fix build warning
- bridges:
- analogix_dp: Various improvements
- panels:
- New panel: WL-355608-A8
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maxime Ripard <mripard@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240606-vivid-amphibian-jackrabbit-40b1d1@houat
UAPI Changes:
- Deprecate DRM date and return a 0 date in DRM_IOCTL_VERSION
Core Changes:
- connector: Create a set of helpers to help with HDMI support
- fbdev: Create memory manager optimized fbdev emulation
- panic: Allow to select fonts, improve drm_fb_dma_get_scanout_buffer
Driver Changes:
- Remove driver owner assignments
- Allow more drivers to compile with COMPILE_TEST
- Conversions to drm_edid
- ivpu: hardware scheduler support, profiling support, improvements
to the platform support layer
- mgag200: general reworks and improvements
- nouveau: Add NVreg_RegistryDwords command line option
- rockchip: Conversion to the hdmi helpers
- sun4i: Conversion to the hdmi helpers
- vc4: Conversion to the hdmi helpers
- v3d: Perf counters improvements
- zynqmp: IRQ and debugfs improvements
- bridge:
- Remove redundant checks on bridge->encoder
- panels:
- Switch panels from register table initialization to proper code
- Now that the panel code tracks the panel state, remove every
ad-hoc implementation in the panel drivers
- New panels: Lincoln Tech Sol LCD185-101CT, Microtips Technology
13-101HIEBCAF0-C, Microtips Technology MF-103HIEB0GA0, BOE
nv110wum-l60, IVO t109nw41
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Merge tag 'drm-misc-next-2024-05-30' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-next
drm-misc-next for 6.11:
UAPI Changes:
- Deprecate DRM date and return a 0 date in DRM_IOCTL_VERSION
Core Changes:
- connector: Create a set of helpers to help with HDMI support
- fbdev: Create memory manager optimized fbdev emulation
- panic: Allow to select fonts, improve drm_fb_dma_get_scanout_buffer
Driver Changes:
- Remove driver owner assignments
- Allow more drivers to compile with COMPILE_TEST
- Conversions to drm_edid
- ivpu: hardware scheduler support, profiling support, improvements
to the platform support layer
- mgag200: general reworks and improvements
- nouveau: Add NVreg_RegistryDwords command line option
- rockchip: Conversion to the hdmi helpers
- sun4i: Conversion to the hdmi helpers
- vc4: Conversion to the hdmi helpers
- v3d: Perf counters improvements
- zynqmp: IRQ and debugfs improvements
- bridge:
- Remove redundant checks on bridge->encoder
- panels:
- Switch panels from register table initialization to proper code
- Now that the panel code tracks the panel state, remove every
ad-hoc implementation in the panel drivers
- New panels: Lincoln Tech Sol LCD185-101CT, Microtips Technology
13-101HIEBCAF0-C, Microtips Technology MF-103HIEB0GA0, BOE
nv110wum-l60, IVO t109nw41
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maxime Ripard <mripard@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240530-hilarious-flat-magpie-5fa186@houat
Use functions introduced in commit 966e397e4f ("drm/mipi-dsi: Introduce
mipi_dsi_*_write_seq_multi()") and commit f79d6d28d8
("drm/mipi-dsi: wrap more functions for streamline handling") for the
sony tulip truly nt35521 panel.
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Tejas Vipin <tejasvipin76@gmail.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240612163946.488684-1-tejasvipin76@gmail.com
The panel-edp driver supports legacy compatible strings for several eDP
panels which were never used in DT files present in Linux tree and most
likely have never been used with the upstream kernel. Drop compatibles
for these panels in favour of using a generic "edp-panel" device on the
AUX bus.
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Acked-by: Maxime Ripard <mripard@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240614-edp-panel-drop-v4-3-4e0a112eec46@linaro.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Add a fat warning against adding new panel compatibles to the panel-edp
driver. All new users of the eDP panels are supposed to use the generic
"edp-panel" compatible device on the AUX bus. The remaining compatibles
are either used by the existing DT or were used previously and are
retained for backwards compatibility.
Suggested-by: Doug Anderson <dianders@chromium.org>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Acked-by: Maxime Ripard <mripard@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240614-edp-panel-drop-v4-1-4e0a112eec46@linaro.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
As talked about in commit d2aacaf073 ("drm/panel: Check for already
prepared/enabled in drm_panel"), we want to remove needless code from
panel drivers that was storing and double-checking the
prepared/enabled state. Even if someone was relying on the
double-check before, that double-check is now in the core and not
needed in individual drivers.
The conversion of the rm67191 panel driver follows many of the other
panel drivers but has a few differences that need to be called out.
Like in commit 1e0465eb16 ("drm/panel: otm8009a: Don't double check
prepared/enabled"), this panel also uses the "prepared" flag to
prevent the backlight functions from running when the panel is powered
off. This is probably not the safest thing to do but the old behavior
was preserved. See the discussion in the otm8009a patch. Because of
this, I've left the driver tracking "prepared" but removed its
tracking of "enabled".
NOTE: as part of this, transition the panel's direct calls to its
disable/unprepare functions in shutdown to call through DRM panel.
Cc: Robert Chiras <robert.chiras@nxp.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Maxime Ripard <mripard@kernel.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20240604172305.v3.21.I20f82e9dd1597a14ae37a64c6b8275add60fbdb1@changeid
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240604172305.v3.21.I20f82e9dd1597a14ae37a64c6b8275add60fbdb1@changeid
As talked about in commit d2aacaf073 ("drm/panel: Check for already
prepared/enabled in drm_panel"), we want to remove needless code from
panel drivers that was storing and double-checking the
prepared/enabled state. Even if someone was relying on the
double-check before, that double-check is now in the core and not
needed in individual drivers.
Cc: Werner Johansson <werner.johansson@sonymobile.com>
Cc: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Maxime Ripard <mripard@kernel.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20240604172305.v3.19.I56849dbe7c906f0cff076dc5286fd05c7e3e9c18@changeid
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240604172305.v3.19.I56849dbe7c906f0cff076dc5286fd05c7e3e9c18@changeid
As talked about in commit d2aacaf073 ("drm/panel: Check for already
prepared/enabled in drm_panel"), we want to remove needless code from
panel drivers that was storing and double-checking the
prepared/enabled state. Even if someone was relying on the
double-check before, that double-check is now in the core and not
needed in individual drivers.
Cc: Marco Franchi <marco.franchi@nxp.com>
Cc: Fabio Estevam <festevam@denx.de>
Cc: Laurentiu Palcu <laurentiu.palcu@oss.nxp.com>
Cc: Pengutronix Kernel Team <kernel@pengutronix.de>
Cc: imx@lists.linux.dev
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Maxime Ripard <mripard@kernel.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20240604172305.v3.15.Idda91d310ca2e4f5a4ab4ca6eaf1afdaf14eeb51@changeid
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240604172305.v3.15.Idda91d310ca2e4f5a4ab4ca6eaf1afdaf14eeb51@changeid
As talked about in commit d2aacaf073 ("drm/panel: Check for already
prepared/enabled in drm_panel"), we want to remove needless code from
panel drivers that was storing and double-checking the
prepared/enabled state. Even if someone was relying on the
double-check before, that double-check is now in the core and not
needed in individual drivers.
Cc: Werner Johansson <werner.johansson@sonymobile.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Maxime Ripard <mripard@kernel.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20240604172305.v3.13.I7278e956ffd1cf686e737834578d4bb3ea527c7f@changeid
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240604172305.v3.13.I7278e956ffd1cf686e737834578d4bb3ea527c7f@changeid
As talked about in commit d2aacaf073 ("drm/panel: Check for already
prepared/enabled in drm_panel"), we want to remove needless code from
panel drivers that was storing and double-checking the
prepared/enabled state. Even if someone was relying on the
double-check before, that double-check is now in the core and not
needed in individual drivers.
NOTE: as part of this, transition the panel's direct calls to its
disable function in shutdown/remove to call through DRM panel.
Cc: Vinay Simha BN <simhavcs@gmail.com>
Cc: Sumit Semwal <sumit.semwal@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Maxime Ripard <mripard@kernel.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20240604172305.v3.11.I2e991044def6644c18ad8d7d686f4f3006f278de@changeid
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240604172305.v3.11.I2e991044def6644c18ad8d7d686f4f3006f278de@changeid
As talked about in commit d2aacaf073 ("drm/panel: Check for already
prepared/enabled in drm_panel"), we want to remove needless code from
panel drivers that was storing and double-checking the
prepared/enabled state. Even if someone was relying on the
double-check before, that double-check is now in the core and not
needed in individual drivers.
Cc: Jacobe Zang <jacobe.zang@wesion.com>
Cc: Nicolas Belin <nbelin@baylibre.com>
Cc: Neil Armstrong <neil.armstrong@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Maxime Ripard <mripard@kernel.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20240604172305.v3.3.Ibed1026f20cab08c90fa376e68c2f23a343e826b@changeid
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240604172305.v3.3.Ibed1026f20cab08c90fa376e68c2f23a343e826b@changeid
As talked about in commit d2aacaf073 ("drm/panel: Check for already
prepared/enabled in drm_panel"), we want to remove needless code from
panel drivers that was storing and double-checking the
prepared/enabled state. Even if someone was relying on the
double-check before, that double-check is now in the core and not
needed in individual drivers.
NOTE: as part of this, transition the panel's direct calls to its
disable/unprepare functions in shutdown/remove to call through DRM
panel.
Cc: Jerry Han <jerry.han.hq@gmail.com>
Cc: Jitao Shi <jitao.shi@mediatek.com>
Cc: Rock Wang <rock_wang@himax.com.cn>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Maxime Ripard <mripard@kernel.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20240604172305.v3.1.Ia3f254ab6e04e4f7afba6c066454498c8fb01324@changeid
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240604172305.v3.1.Ia3f254ab6e04e4f7afba6c066454498c8fb01324@changeid
make allmodconfig && make W=1 C=1 reports:
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/gpu/drm/panel/panel-abt-y030xx067a.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/gpu/drm/panel/panel-auo-a030jtn01.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/gpu/drm/panel/panel-innolux-ej030na.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/gpu/drm/panel/panel-newvision-nv3052c.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/gpu/drm/panel/panel-novatek-nt39016.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/gpu/drm/panel/panel-orisetech-ota5601a.o
Add the missing invocations of the MODULE_DESCRIPTION() macro.
Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Signed-off-by: Maxime Ripard <mripard@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240609-md-drivers-gpu-drm-panel-v1-1-04b2a1ae7412@quicinc.com
The WL-355608-A8 is a 3.5" 640x480@60Hz RGB LCD display from an unknown
OEM used in a number of handheld gaming devices made by Anbernic.
Limited information is available online however the panel timing values
(below) have been obtained from the vendor BSP. The panel appears to
integrate a NV3052C LCD driver (or clone). Available devices address it
in SPI/RGB mode, with the timing signals generated from the device
SoC (Allwinner H700) and passed through.
Add a panel definition and display mode to the existing NV3502C driver.
It was assumed during bringup that the initialisation sequence was the
same as the existing Fascontek FS035VG158 panel, proved working during
experimentation, however subsequent dumping of the init sequence with a
logic analyser confirms one small change to VCOM_ADJ3 from 0x4a to 0x44,
therefore a separate set of registers is also added.
Timings:
| Active | FP | Sync | BP | Total
-----------|--------|------|------|------|-------
Horizontal | 640 | 64 | 20 | 46 | 770
Vertical | 480 | 21 | 4 | 15 | 520
Signed-off-by: Ryan Walklin <ryan@testtoast.com>
Co-developed-by: Hironori KIKUCHI <kikuchan98@gmail.com>
Signed-off-by: Hironori KIKUCHI <kikuchan98@gmail.com>
Reviewed-by: John Watts <contact@jookia.org>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Acked-by: Jessica Zhang <quic_jesszhan@quicinc.com>
Link: https://lore.kernel.org/r/20240530211415.44201-4-ryan@testtoast.com
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240530211415.44201-4-ryan@testtoast.com
Same as commit 7c8690d8fc ("drm/panel-edp: Add some panels with
conservative timings"), the 3 panels added in this patch are used by
Mediatek MT8173 Chromebooks and they used to work with the downstream
v4.19 kernel without any specified delay.
These panel IDs were found from in-field reports, but their datahseets
are not available. For BOE 0x0623 and SHP 0x153a, their product names
are retrieved from the EDIDs. The EDID of AUO 0x1999 does not contain
such information, so list as "Unknown" in this patch.
Update these entries with less-conservative timings from other panels of
the same vendor.
Signed-off-by: Pin-yen Lin <treapking@chromium.org>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240527095511.719825-3-treapking@chromium.org
As talked about in commit d2aacaf073 ("drm/panel: Check for already
prepared/enabled in drm_panel"), we want to remove needless code from
panel drivers that was storing and double-checking the
prepared/enabled state. Even if someone was relying on the
double-check before, that double-check is now in the core and not
needed in individual drivers.
The acx565akm seems to do some unique stuff with the "enabled"
state. Specifically:
1. It seems to detect the enabled state based on how the bootloader
left the panel.
2. It uses the enabled state to prevent certain sysfs files from
accessing a disabled panel.
We'll leave the "enabled" state tracking for this. However, we can at
least get rid of the double-check when trying to disable.
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Sebastian Reichel <sebastian.reichel@collabora.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Maxime Ripard <mripard@kernel.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240503143327.RFT.v2.46.I6a51b36831a5c7b2b82bccf8c550cf0d076aa541@changeid
It's the responsibility of a correctly written DRM modeset driver to
call drm_atomic_helper_shutdown() at shutdown time and that should be
disabling / unpreparing the panel if needed. Panel drivers shouldn't
be calling these functions themselves.
A recent effort was made to fix as many DRM modeset drivers as
possible [1] [2] [3] and most drivers are fixed now.
The compatible strings used by this driver seem to show up across
boards using a variety of DRM drivers. It appears that the relevant
drivers have been converted, but at least one compatible string
doesn't seem to be found in any mainline dts files so we can't be 100%
sure. If it is found that the DRM modeset driver hasn't been fixed
then this patch could be temporarily reverted until it is.
[1] https://lore.kernel.org/r/20230901234015.566018-1-dianders@chromium.org
[2] https://lore.kernel.org/r/20230901234202.566951-1-dianders@chromium.org
[3] https://lore.kernel.org/r/20230921192749.1542462-1-dianders@chromium.org
Cc: Guido Günther <agx@sigxcpu.org>
Cc: Ondřej Jirman <megi@xff.cz>
Cc: Chris Morgan <macromorgan@hotmail.com>
Cc: Frank Oltmanns <frank@oltmanns.dev>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Maxime Ripard <mripard@kernel.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240503143327.RFT.v2.43.I08ba0d4e2d534c06ab0ede9c148bb14cc7c1a9d7@changeid
As talked about in commit d2aacaf073 ("drm/panel: Check for already
prepared/enabled in drm_panel"), we want to remove needless code from
panel drivers that was storing and double-checking the
prepared/enabled state. Even if someone was relying on the
double-check before, that double-check is now in the core and not
needed in individual drivers.
One thing to note for st7703 is that it has a special "allpixelson"
debugfs file. When this file is written the driver hacks a
disable/unprepare and then a prepare/enable to try to reset the
panel. Potentially that might have been relying on the old booleans we
removed. It'll still "work" because of the checks in the core but it
deserves a comment. This debugfs file didn't appear to be particularly
safe to use even before this patch since it would cause a
disabled/unprepared panel to become prepared/enabled.
Cc: Guido Günther <agx@sigxcpu.org>
Cc: Ondřej Jirman <megi@xff.cz>
Cc: Chris Morgan <macromorgan@hotmail.com>
Cc: Frank Oltmanns <frank@oltmanns.dev>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Maxime Ripard <mripard@kernel.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240503143327.RFT.v2.42.Ifc436b262d72f1a33ddef10adfd7578d4acb60d8@changeid
As talked about in commit d2aacaf073 ("drm/panel: Check for already
prepared/enabled in drm_panel"), we want to remove needless code from
panel drivers that was storing and double-checking the
prepared/enabled state. Even if someone was relying on the
double-check before, that double-check is now in the core and not
needed in individual drivers.
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Maxime Ripard <mripard@kernel.org>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240503143327.RFT.v2.30.I2145be78ce28327f4588c2c21370f22fd79d28b8@changeid
As talked about in commit d2aacaf073 ("drm/panel: Check for already
prepared/enabled in drm_panel"), we want to remove needless code from
panel drivers that was storing and double-checking the
prepared/enabled state. Even if someone was relying on the
double-check before, that double-check is now in the core and not
needed in individual drivers.
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Maxime Ripard <mripard@kernel.org>
Acked-by: Sui Jingfeng <sui.jingfeng@linux.dev>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240503143327.RFT.v2.26.I865be97dd393d6ae3c3a3cd1358c95fdbca0fe83@changeid
As talked about in commit d2aacaf073 ("drm/panel: Check for already
prepared/enabled in drm_panel"), we want to remove needless code from
panel drivers that was storing and double-checking the
prepared/enabled state. Even if someone was relying on the
double-check before, that double-check is now in the core and not
needed in individual drivers.
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Maxime Ripard <mripard@kernel.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240503143327.RFT.v2.24.Ibb4f923363a27167c480a432e52884b117221974@changeid
As talked about in commit d2aacaf073 ("drm/panel: Check for already
prepared/enabled in drm_panel"), we want to remove needless code from
panel drivers that was storing and double-checking the
prepared/enabled state. Even if someone was relying on the
double-check before, that double-check is now in the core and not
needed in individual drivers.
Cc: Sumit Semwal <sumit.semwal@linaro.org>
Cc: Benni Steini <bennisteinir@gmail.com>
Cc: Marijn Suijten <marijn.suijten@somainline.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Maxime Ripard <mripard@kernel.org>
Tested-by: Joel Selvaraj <jo@jsfamily.in>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240503143327.RFT.v2.18.I13a06b9e6f5920659b1e5d12543b3cd9066383b8@changeid
As talked about in commit d2aacaf073 ("drm/panel: Check for already
prepared/enabled in drm_panel"), we want to remove needless code from
panel drivers that was storing and double-checking the
prepared/enabled state. Even if someone was relying on the
double-check before, that double-check is now in the core and not
needed in individual drivers.
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Maxime Ripard <mripard@kernel.org>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240503143327.RFT.v2.16.I4f574b87fe24765ddd4424437159b37a6481aa1a@changeid
It's the responsibility of a correctly written DRM modeset driver to
call drm_atomic_helper_shutdown() at shutdown time and that should be
disabling / unpreparing the panel if needed. Panel drivers shouldn't
be calling these functions themselves.
A recent effort was made to fix as many DRM modeset drivers as
possible [1] [2] [3] and most drivers are fixed now.
Unfortunately, grepping mainline for this panel's compatible string
shows no hits, so we can't be 100% sure if the DRM modeset driver used
with this panel has been fixed. If it is found that the DRM modeset
driver hasn't been fixed then this patch could be temporarily reverted
until it is.
[1] https://lore.kernel.org/r/20230901234015.566018-1-dianders@chromium.org
[2] https://lore.kernel.org/r/20230901234202.566951-1-dianders@chromium.org
[3] https://lore.kernel.org/r/20230921192749.1542462-1-dianders@chromium.org
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Maxime Ripard <mripard@kernel.org>
Tested-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Quentin Schulz <quentin.schulz@cherry.de>
Tested-by: Quentin Schulz <quentin.schulz@cherry.de> # RK3399 Puma with Haikou Video Demo
Tested-by: Quentin Schulz <quentin.schulz@cherry.de> # PX30 Ringneck with Haikou Video Demo
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240503143327.RFT.v2.15.Ibeb2e5692e34b136afe4cf55532f0696ab3f5eed@changeid
As talked about in commit d2aacaf073 ("drm/panel: Check for already
prepared/enabled in drm_panel"), we want to remove needless code from
panel drivers that was storing and double-checking the
prepared/enabled state. Even if someone was relying on the
double-check before, that double-check is now in the core and not
needed in individual drivers.
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Maxime Ripard <mripard@kernel.org>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Tested-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Quentin Schulz <quentin.schulz@cherry.de>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240503143327.RFT.v2.14.I264417152e65b4a2e374666010666fa1c2d973fc@changeid
As talked about in commit d2aacaf073 ("drm/panel: Check for already
prepared/enabled in drm_panel"), we want to remove needless code from
panel drivers that was storing and double-checking the
prepared/enabled state. Even if someone was relying on the
double-check before, that double-check is now in the core and not
needed in individual drivers.
Cc: Brian Norris <briannorris@chromium.org>
Cc: Chris Zhong <zyw@rock-chips.com>
Cc: Nickey Yang <nickey.yang@rock-chips.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Maxime Ripard <mripard@kernel.org>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240503143327.RFT.v2.12.I711d07c4f4738df199697fd534c452cdfa46a21f@changeid
As talked about in commit d2aacaf073 ("drm/panel: Check for already
prepared/enabled in drm_panel"), we want to remove needless code from
panel drivers that was storing and double-checking the
prepared/enabled state. Even if someone was relying on the
double-check before, that double-check is now in the core and not
needed in individual drivers.
Cc: Chris Zhong <zyw@rock-chips.com>
Cc: Lin Huang <hl@rock-chips.com>
Cc: Brian Norris <briannorris@chromium.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Maxime Ripard <mripard@kernel.org>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240503143327.RFT.v2.8.I99c73621fe3fba067a5e7ee6a1f6293c23371e1e@changeid
As talked about in commit d2aacaf073 ("drm/panel: Check for already
prepared/enabled in drm_panel"), we want to remove needless code from
panel drivers that was storing and double-checking the
prepared/enabled state. Even if someone was relying on the
double-check before, that double-check is now in the core and not
needed in individual drivers.
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Maxime Ripard <mripard@kernel.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240503143327.RFT.v2.6.I4d1bf08781593c08127e506422687ab19fd3c824@changeid
As talked about in commit d2aacaf073 ("drm/panel: Check for already
prepared/enabled in drm_panel"), we want to remove needless code from
panel drivers that was storing and double-checking the
prepared/enabled state. Even if someone was relying on the
double-check before, that double-check is now in the core and not
needed in individual drivers.
Cc: Jitao Shi <jitao.shi@mediatek.com>
Cc: Cong Yang <yangcong5@huaqin.corp-partner.google.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Maxime Ripard <mripard@kernel.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240503143327.RFT.v2.4.Ib501f2eceb62016e09cfb17bca29bde0f605a567@changeid
As talked about in commit d2aacaf073 ("drm/panel: Check for already
prepared/enabled in drm_panel"), we want to remove needless code from
panel drivers that was storing and double-checking the
prepared/enabled state. Even if someone was relying on the
double-check before, that double-check is now in the core and not
needed in individual drivers.
Cc: Konrad Dybcio <konrad.dybcio@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Maxime Ripard <mripard@kernel.org>
Tested-by: Luca Weiss <luca.weiss@fairphone.com>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240503143327.RFT.v2.1.I784238de4810658212a5786b219f128460562a37@changeid
Take advantage of some of the new wrapped routines introduced by
commit f79d6d28d8 ("drm/mipi-dsi: wrap more functions for streamline
handling") to simplify the himax-hx83102 driver a bit more. This gets
rid of some extra error prints (since the _multi functions all print
errors for you) and simplifies the code a bit.
One thing here that isn't just refactoring is that in a few places we
now check with errors with "if (err)" instead of "if (err < 0)". All
errors are expected to be negative so this is not expected to have any
impact. The _multi code internally considers anything non-zero to be
an error so this just makes things consistent.
It can also be noted that hx83102_prepare() has a mix of things that
can take advantage of _multi calls and things that can't. The cleanest
seemed to be to use the multi_ctx still but consistently use the
"accum_err" variable for error returns, though that's definitely a
style decision with pros and cons.
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20240517143643.8.If761d37b5d511867ac8207fe8220ae48d444a04f@changeid
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240517143643.8.If761d37b5d511867ac8207fe8220ae48d444a04f@changeid
The mipi_dsi_dcs_nop() function returns an error but we weren't
checking it in boe_panel_prepare(). Add a check. This is highly
unlikely to matter in practice. If the NOP failed then likely later
MIPI commands would fail too.
Found by code inspection.
Fixes: 812562b8d8 ("drm/panel: boe-tv101wum-nl6: Fine tune the panel power sequence")
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20240517143643.3.Ibffbaa5b4999ac0e55f43bf353144433b099d727@changeid
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240517143643.3.Ibffbaa5b4999ac0e55f43bf353144433b099d727@changeid
If mipi_dsi_dcs_set_display_on() returned an error then we'd store
that in the "ret" variable and jump to error handling. We'd then
attempt an orderly poweroff. Unfortunately we then blew away the value
stored in "ret". That means that if the orderly poweroff actually
worked then we're return 0 (no error) from hx8394_enable() even though
the panel wasn't enabled.
Fix this by not blowing away "ret".
Found by code inspection.
Fixes: 65dc9360f7 ("drm: panel: Add Himax HX8394 panel controller driver")
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20240517143643.1.I0a6836fffd8d7620f353becb3df2370d2898f803@changeid
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240517143643.1.I0a6836fffd8d7620f353becb3df2370d2898f803@changeid
Consensus on the mailing lists is that panels shouldn't use a table of
init commands but should instead use init functions. We'll use the
same concepts as the recently introduced
mipi_dsi_generic_write_seq_multi() to make this clean/easy and also
not bloat the driver too much. Measuring before/after this change:
$ scripts/bloat-o-meter \
.../before/panel-innolux-p079zca.ko \
.../after/panel-innolux-p079zca.ko
add/remove: 3/2 grow/shrink: 0/1 up/down: 2356/-1944 (412)
Function old new delta
innolux_p097pfg_init - 1772 +1772
innolux_p097pfg_init.d - 480 +480
innolux_panel_write_multi - 104 +104
innolux_panel_prepare 412 308 -104
.compoundliteral 480 - -480
innolux_p097pfg_init_cmds 1360 - -1360
Total: Before=5802, After=6214, chg +7.10%
Note that, unlike some other drivers, we actually make this panel
driver _bigger_ by using the new functions. This is because the
innolux-p079zca panel driver didn't have as complex of a table and
thus the old table was more efficient than the code. The bloat is
still not giant (only 412 bytes).
Also note that we can't direclty use
mipi_dsi_generic_write_seq_multi() here because we need to deal with
the crazy "nop" that this driver sends after all commands. This means
that we have to write code that is "inspired" by the new macros.
Since we're touching all the tables, let's also convert hex numbers to
lower case as per kernel conventions.
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://lore.kernel.org/r/20240514102056.v5.9.I947e28c81f9ef7dcd3add6e193be72d6f8ea086f@changeid
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240514102056.v5.9.I947e28c81f9ef7dcd3add6e193be72d6f8ea086f@changeid
Consensus on the mailing lists is that panels shouldn't use a table of
init commands but should instead use init functions. With the recently
introduced mipi_dsi_dcs_write_seq_multi() this is not only clean/easy
but also saves space. Measuring before/after this change:
$ scripts/bloat-o-meter \
.../before/panel-ilitek-ili9882t.ko \
.../after/panel-ilitek-ili9882t.ko
add/remove: 3/2 grow/shrink: 0/2 up/down: 6834/-8177 (-1343)
Function old new delta
starry_ili9882t_init - 6152 +6152
starry_ili9882t_init.d - 678 +678
ili9882t_disable.d - 4 +4
ili9882t_disable 260 228 -32
ili9882t_prepare 540 396 -144
.compoundliteral 681 - -681
starry_ili9882t_init_cmd 7320 - -7320
Total: Before=11928, After=10585, chg -11.26%
Let's do the conversion.
Since we're touching all the tables, let's also convert hex numbers to
lower case as per kernel conventions.
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://lore.kernel.org/r/20240514102056.v5.8.I407b977f9508573103491df549dfaffc3688db13@changeid
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240514102056.v5.8.I407b977f9508573103491df549dfaffc3688db13@changeid
This is a mechanical conversion of the novatek-nt36672e driver to use
the new mipi_dsi_dcs_write_seq_multi(). The new function is easier for
clients to understand and using it also causes smaller code to be
generated. Specifically:
$ scripts/bloat-o-meter \
...after/panel-novatek-nt36672e.ko \
...ctx/panel-novatek-nt36672e.ko
add/remove: 0/0 grow/shrink: 0/1 up/down: 0/-988 (-988)
Function old new delta
nt36672e_1080x2408_60hz_init 6236 5248 -988
Total: Before=10651, After=9663, chg -9.28%
Cc: Ritesh Kumar <quic_riteshk@quicinc.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://lore.kernel.org/r/20240514102056.v5.6.I3c08a7d02c467d2bc88da14e513ea4c8649fce45@changeid
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240514102056.v5.6.I3c08a7d02c467d2bc88da14e513ea4c8649fce45@changeid
new drivers:
- panthor: ARM Mali/Immortalis CSF-based GPU driver
core:
- add a CONFIG_DRM_WERROR option
- make more headers self-contained
- grab resv lock in pin/unpin
- fix vmap resv locking
- EDID/eDP panel matching
- Kconfig cleanups
- DT sound bindings
- Add SIZE_HINTS property for cursor planes
- Add struct drm_edid_product_id and helpers.
- Use drm device based logging in more drm functions.
- drop seq_file.h from a bunch of places
- use drm_edid driver conversions
dp:
- DP Tunnel documentation
- MST read sideband cap
- Adaptive sync SDP prep work
ttm:
- improve placement for TTM BOs in idle/busy handling
panic:
- Fixes for drm-panic, and option to test it.
- Add drm panic to simpledrm, mgag200, imx, ast
bridge:
- improve init ordering
- adv7511: allow GPIO pin sharing
- tc358775: add tc358675 support
panel:
- AUO B120XAN01.0
- Samsung s6e3fa7
- BOE NT116WHM-N44
- CMN N116BCA-EA1,
- CrystalClear CMT430B19N00
- Startek KD050HDFIA020-C020A
- powertip PH128800T006-ZHC01
- Innolux G121X1-L03
- LG sw43408
- Khadas TS050 V2
- EDO RM69380 OLED
- CSOT MNB601LS1-1
amdgpu:
- HDCP/ODM/RAS fixes
- Devcoredump improvements
- Expose VCN activity via sysfs
- SMY 13.0.x updates
- Enable fast updates on DCN 3.1.4
- Add dclk and vclk reporting on additional devices
- Add ACA RAS infrastructure
- Implement TLB flush fence
- EEPROM handling fixes
- SMUIO 14.0.2 support
- SMU 14.0.1 Updates
- SMU 14.0.2 support
- Sync page table freeing with TLB flushes
- DML2 refactor
- DC debug improvements
- DCN 3.5.x Updates
- GPU reset fixes
- HDP fix for second GFX pipe on GC 10.x
- Enable secondary GFX pipe on GC 10.3
- Refactor and clean up BACO/BOCO/BAMACO handling
- Remove invalid TTM resource start check
- UAF fix in VA IOCTL
- GPUVM page fault redirection to secondary IH rings for IH 6.x
- Initial support for mapping kernel queues via MES
- Fix VRAM memory accounting
amdkfd:
- MQD handling cleanup
- Preemption handling fixes for XCDs
- TLB flush fix for GC 9.4.2
- Properly clean up workqueue during module unload
- Fix memory leak process create failure
- Range check CP bad op exception targets to avoid reporting invalid exceptions to userspace
- Fix eviction fence handling
- Fix leak in GPU memory allocation failure case
- DMABuf import handling fix
- Enable SQ watchpoint for gfx10
i915:
- Adding new DG2 PCI ID
- add context hints for GT frequency
- enable only one CCS for compute workloads
- new workarounds
- Fix UAF on destroy against retire race and remove two earlier partial fixes
- Limit the reserved VM space to only the platforms that need it
- Fix gt reset with GuC submission is disable
- Add and use gt_to_guc() wrapper
i915/xe display:
- Lunar Lake display enabling, including cdclk and other refactors
- BIOS/VBT/opregion related refactor
- Digital port related refactor/clean-up
- Fix 2s boot time regression on DP panel replay init
- Remove duplication on audio enable/disable on SDVO and g4x+ DP
- Disable AuxCCS framebuffers if built for Xe
- Make crtc disable more atomic
- Increase DP idle pattern wait timeout to 2ms
- Start using container_of_const() for some extra const safety
- Fix Jasper Lake boot freeze
- Enable MST mode for 128b/132b single-stream sideband
- Enable Adaptive Sync SDP Support for DP
- Fix MTL supported DP rates - removal of UHBR13.5
- PLL refactoring
- Limit eDP MSO pipe only for display version 20
- More display refactor towards independence from i915 dev_priv
- Convert i915/xe fbdev to DRM client
- More initial work to make display code more independent from i915
xe:
- improved error capture
- clean up some uAPI leftovers
- devcoredump update
- Add BMG mocs table
- Handle GSCCS ER interrupt
- Implement xe2- and GuC workarounds
- struct xe_device cleanup
- Hwmon updates
- Add LRC parsing for more GPU instruction
- Increase VM_BIND number of per-ioctl Ops
- drm/xe: Add XE_BO_GGTT_INVALIDATE flag
- Initial development for SR-IOV support
- Add new PCI IDs to DG2 platform
- Move userptr over to start using hmm_range_fault
msm:
- Switched to generating register header files during build process
instead of shipping pre-generated headers
- Merged DPU and MDP4 format databases.
- DP:
- Stop using compat string to distinguish DP and eDP cases
- Added support for X Elite platform (X1E80100)
- Reworked DP aux/audio support
- Added SM6350 DP to the bindings
- GPU:
- a7xx perfcntr reg fixes
- MAINTAINERS updates
- a750 devcoredump support
radeon:
- Silence UBSAN warnings related to flexible arrays
nouveau:
- move some uAPI objects to uapi headers
omapdrm:
- console fix
ast:
- add i2c polling
qaic:
- add debugfs entries
exynos:
- fix platform_driver .owner
- drop cleanup code
mediatek:
- Use devm_platform_get_and_ioremap_resource() in mtk_hdmi_ddc_probe()
- Add GAMMA 12-bit LUT support for MT8188
- Rename mtk_drm_* to mtk_*
- Drop driver owner initialization
- Correct calculation formula of PHY Timing
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Merge tag 'drm-next-2024-05-15' of https://gitlab.freedesktop.org/drm/kernel
Pull drm updates from Dave Airlie:
"This is the main pull request for the drm subsystems for 6.10.
In drivers the main thing is a new driver for ARM Mali firmware based
GPUs, otherwise there are a lot of changes to amdgpu/xe/i915/msm and
scattered changes to everything else.
In the core a bunch of headers and Kconfig was refactored, along with
the addition of a new panic handler which is meant to provide a user
friendly message when a panic happens and graphical display is
enabled.
New drivers:
- panthor: ARM Mali/Immortalis CSF-based GPU driver
Core:
- add a CONFIG_DRM_WERROR option
- make more headers self-contained
- grab resv lock in pin/unpin
- fix vmap resv locking
- EDID/eDP panel matching
- Kconfig cleanups
- DT sound bindings
- Add SIZE_HINTS property for cursor planes
- Add struct drm_edid_product_id and helpers.
- Use drm device based logging in more drm functions.
- drop seq_file.h from a bunch of places
- use drm_edid driver conversions
dp:
- DP Tunnel documentation
- MST read sideband cap
- Adaptive sync SDP prep work
ttm:
- improve placement for TTM BOs in idle/busy handling
panic:
- Fixes for drm-panic, and option to test it.
- Add drm panic to simpledrm, mgag200, imx, ast
bridge:
- improve init ordering
- adv7511: allow GPIO pin sharing
- tc358775: add tc358675 support
panel:
- AUO B120XAN01.0
- Samsung s6e3fa7
- BOE NT116WHM-N44
- CMN N116BCA-EA1,
- CrystalClear CMT430B19N00
- Startek KD050HDFIA020-C020A
- powertip PH128800T006-ZHC01
- Innolux G121X1-L03
- LG sw43408
- Khadas TS050 V2
- EDO RM69380 OLED
- CSOT MNB601LS1-1
amdgpu:
- HDCP/ODM/RAS fixes
- Devcoredump improvements
- Expose VCN activity via sysfs
- SMY 13.0.x updates
- Enable fast updates on DCN 3.1.4
- Add dclk and vclk reporting on additional devices
- Add ACA RAS infrastructure
- Implement TLB flush fence
- EEPROM handling fixes
- SMUIO 14.0.2 support
- SMU 14.0.1 Updates
- SMU 14.0.2 support
- Sync page table freeing with TLB flushes
- DML2 refactor
- DC debug improvements
- DCN 3.5.x Updates
- GPU reset fixes
- HDP fix for second GFX pipe on GC 10.x
- Enable secondary GFX pipe on GC 10.3
- Refactor and clean up BACO/BOCO/BAMACO handling
- Remove invalid TTM resource start check
- UAF fix in VA IOCTL
- GPUVM page fault redirection to secondary IH rings for IH 6.x
- Initial support for mapping kernel queues via MES
- Fix VRAM memory accounting
amdkfd:
- MQD handling cleanup
- Preemption handling fixes for XCDs
- TLB flush fix for GC 9.4.2
- Properly clean up workqueue during module unload
- Fix memory leak process create failure
- Range check CP bad op exception targets to avoid reporting invalid exceptions to userspace
- Fix eviction fence handling
- Fix leak in GPU memory allocation failure case
- DMABuf import handling fix
- Enable SQ watchpoint for gfx10
i915:
- Adding new DG2 PCI ID
- add context hints for GT frequency
- enable only one CCS for compute workloads
- new workarounds
- Fix UAF on destroy against retire race and remove two earlier partial fixes
- Limit the reserved VM space to only the platforms that need it
- Fix gt reset with GuC submission is disable
- Add and use gt_to_guc() wrapper
i915/xe display:
- Lunar Lake display enabling, including cdclk and other refactors
- BIOS/VBT/opregion related refactor
- Digital port related refactor/clean-up
- Fix 2s boot time regression on DP panel replay init
- Remove duplication on audio enable/disable on SDVO and g4x+ DP
- Disable AuxCCS framebuffers if built for Xe
- Make crtc disable more atomic
- Increase DP idle pattern wait timeout to 2ms
- Start using container_of_const() for some extra const safety
- Fix Jasper Lake boot freeze
- Enable MST mode for 128b/132b single-stream sideband
- Enable Adaptive Sync SDP Support for DP
- Fix MTL supported DP rates - removal of UHBR13.5
- PLL refactoring
- Limit eDP MSO pipe only for display version 20
- More display refactor towards independence from i915 dev_priv
- Convert i915/xe fbdev to DRM client
- More initial work to make display code more independent from i915
xe:
- improved error capture
- clean up some uAPI leftovers
- devcoredump update
- Add BMG mocs table
- Handle GSCCS ER interrupt
- Implement xe2- and GuC workarounds
- struct xe_device cleanup
- Hwmon updates
- Add LRC parsing for more GPU instruction
- Increase VM_BIND number of per-ioctl Ops
- drm/xe: Add XE_BO_GGTT_INVALIDATE flag
- Initial development for SR-IOV support
- Add new PCI IDs to DG2 platform
- Move userptr over to start using hmm_range_fault
msm:
- Switched to generating register header files during build process
instead of shipping pre-generated headers
- Merged DPU and MDP4 format databases.
- DP:
- Stop using compat string to distinguish DP and eDP cases
- Added support for X Elite platform (X1E80100)
- Reworked DP aux/audio support
- Added SM6350 DP to the bindings
- GPU:
- a7xx perfcntr reg fixes
- MAINTAINERS updates
- a750 devcoredump support
radeon:
- Silence UBSAN warnings related to flexible arrays
nouveau:
- move some uAPI objects to uapi headers
omapdrm:
- console fix
ast:
- add i2c polling
qaic:
- add debugfs entries
exynos:
- fix platform_driver .owner
- drop cleanup code
mediatek:
- Use devm_platform_get_and_ioremap_resource() in mtk_hdmi_ddc_probe()
- Add GAMMA 12-bit LUT support for MT8188
- Rename mtk_drm_* to mtk_*
- Drop driver owner initialization
- Correct calculation formula of PHY Timing"
* tag 'drm-next-2024-05-15' of https://gitlab.freedesktop.org/drm/kernel: (1477 commits)
drm/xe/ads: Use flexible-array
drm/xe: Use ordered WQ for G2H handler
drm/msm/gen_header: allow skipping the validation
drm/msm/a6xx: Cleanup indexed regs const'ness
drm/msm: Add devcoredump support for a750
drm/msm: Adjust a7xx GBIF debugbus dumping
drm/msm: Update a6xx registers XML
drm/msm: Fix imported a750 snapshot header for upstream
drm/msm: Import a750 snapshot registers from kgsl
MAINTAINERS: Add Konrad Dybcio as a reviewer for the Adreno driver
MAINTAINERS: Add a separate entry for Qualcomm Adreno GPU drivers
drm/msm/a6xx: Avoid a nullptr dereference when speedbin setting fails
drm/msm/adreno: fix CP cycles stat retrieval on a7xx
drm/msm/a7xx: allow writing to CP_BV counter selection registers
drm: zynqmp_dpsub: Always register bridge
Revert "drm/bridge: ti-sn65dsi83: Fix enable error path"
drm/fb_dma: Add checks in drm_fb_dma_get_scanout_buffer()
drm/fbdev-generic: Do not set physical framebuffer address
drm/panthor: Fix the FW reset logic
drm/panthor: Make sure we handle 'unknown group state' case properly
...
As evidenced by in-field reports, this panel shipped on pompom but we
never added the ID and thus we're stuck w/ conservative timings. The
panel was part of early patches but somehow got left off in the
end. :( Add it in now.
For future reference, EDID from this panel is:
00ffffffffffff002c82121200000000
321e0104951a0e780ae511965e55932c
19505400000001010101010101010101
010101010101a41f5686500084302820
55000090100000180000000000000000
00000000000000000000000000000000
000000000000000000000000000000fe
004b443131364e3039333041313600f6
We use the ASCII string from decoding the EDID ("KD116N0930A16") as
the panel name.
Reviewed-by: Hsin-Yi Wang <hsinyi@chromium.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240502164746.1.Ia32fc630e5ba41b3fdd3666d9e343568e03c4f3a@changeid
This reverts commit e075e496f5, as helper
code should always be selected by the driver that needs it, for the
convenience of the final user configuring a kernel.
The user who configures a kernel should not need to know which helpers
are needed for the driver he is interested in. Making a driver depend
on helper code means that the user needs to know which helpers to enable
first, which is very user-unfriendly.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Link: https://patchwork.freedesktop.org/patch/msgid/1ba76cc4d96a8afefff5d1bc42fb1e1329c5da68.1713780345.git.geert+renesas@glider.be
Signed-off-by: Maxime Ripard <mripard@kernel.org>
This reverts commit 4d15125d7f, as helper
code should always be selected by the driver that needs it, for the
convenience of the final user configuring a kernel.
The user who configures a kernel should not need to know which helpers
are needed for the driver he is interested in. Making a driver depend
on helper code means that the user needs to know which helpers to enable
first, which is very user-unfriendly.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Link: https://patchwork.freedesktop.org/patch/msgid/79824fec01eb9ab0673b9409f9b39cc8b5cc338d.1713780345.git.geert+renesas@glider.be
Signed-off-by: Maxime Ripard <mripard@kernel.org>
This reverts commit 0323287de8, as helper
code should always be selected by the driver that needs it, for the
convenience of the final user configuring a kernel.
The user who configures a kernel should not need to know which helpers
are needed for the driver he is interested in. Making a driver depend
on helper code means that the user needs to know which helpers to enable
first, which is very user-unfriendly.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Link: https://patchwork.freedesktop.org/patch/msgid/89ac456805746b6d0c888f10c5120b11aacd3319.1713780345.git.geert+renesas@glider.be
Signed-off-by: Maxime Ripard <mripard@kernel.org>
Implement fbdev emulation with fbdev-dma. Fbdev-dma now supports
damage handling, which is required by panel-ilitek-9341. Avoids
the overhead of fbdev-generic's additional shadow buffering. No
functional changes.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Neil Armstrong <neil.armstrong@linaro.org>
Cc: Jessica Zhang <quic_jesszhan@quicinc.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240419083331.7761-28-tzimmermann@suse.de
In one case the -1 is returned which is quite confusing code for
the wrong device ID, in another the ret is returning instead of
plain 0 that also confusing as readed may ask the possible meaning
of positive codes, which are never the case there. Convert both
to use explicit predefined error codes to make it clear what's going
on there.
Fixes: 5a04227326 ("drm/panel: Add ilitek ili9341 panel driver")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Reviewed-by: Sui Jingfeng <sui.jingfeng@linux.dev>
Link: https://lore.kernel.org/r/20240425142706.2440113-4-andriy.shevchenko@linux.intel.com
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240425142706.2440113-4-andriy.shevchenko@linux.intel.com
GPIO controller might not be available when driver is being probed.
There are plenty of reasons why, one of which is deferred probe.
Since GPIOs are optional, return any error code we got to the upper
layer, including deferred probe. With that in mind, use dev_err_probe()
in order to avoid spamming the logs.
Fixes: 5a04227326 ("drm/panel: Add ilitek ili9341 panel driver")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Reviewed-by: Sui Jingfeng <sui.jingfeng@linux.dev>
Link: https://lore.kernel.org/r/20240425142706.2440113-3-andriy.shevchenko@linux.intel.com
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240425142706.2440113-3-andriy.shevchenko@linux.intel.com
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Backmerge tag 'v6.9-rc5' into drm-next
Linux 6.9-rc5
I've had a persistent msm failure on clang, and the fix is in fixes
so just pull it back to fix that.
Signed-off-by: Dave Airlie <airlied@redhat.com>
LG SW43408 is 1080x2160@60Hz, 4-lane MIPI-DSI panel, used in some
Google Pixel-3 phones.
Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org>
[vinod: Add DSC support]
Signed-off-by: Vinod Koul <vkoul@kernel.org>
[caleb: cleanup and support turning off the panel]
Signed-off-by: Caleb Connolly <caleb@connolly.tech>
[DB: partially rewrote the driver and fixed DSC programming]
Reviewed-by: Marijn Suijten <marijn.suijten@somainline.org>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240408-lg-sw43408-panel-v5-4-4e092da22991@linaro.org
The .bpc = 6 implies .bus_format = MEDIA_BUS_FMT_RGB666_1X7X3_SPWG ,
add the missing bus_format. Add missing connector type and bus_flags
as well.
Documentation [1] 1.4 GENERAL SPECIFICATI0NS indicates this panel is
capable of both RGB 18bit/24bit panel, the current configuration uses
18bit mode, .bus_format = MEDIA_BUS_FMT_RGB666_1X7X3_SPWG , .bpc = 6.
Support for the 24bit mode would require another entry in panel-simple
with .bus_format = MEDIA_BUS_FMT_RGB666_1X7X4_SPWG and .bpc = 8, which
is out of scope of this fix.
[1] https://www.distec.de/fileadmin/pdf/produkte/TFT-Displays/Innolux/G121X1-L03_Datasheet.pdf
Fixes: f8fa17ba81 ("drm/panel: simple: Add support for Innolux G121X1-L03")
Signed-off-by: Marek Vasut <marex@denx.de>
Acked-by: Jessica Zhang <quic_jesszhan@quicinc.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240328102746.17868-2-marex@denx.de
The DSI device for the panel was registered by the DSI host, so it is an
error to unregister it from the panel driver. Drop the call to
mipi_dsi_device_unregister().
Fixes: ea4f997562 ("drm/panel: Add support for Novatek NT36672E panel driver")
Reviewed-by: Jessica Zhang <quic_jesszhan@quicinc.com>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240404-drop-panel-unregister-v1-2-9f56953c5fb9@linaro.org
The DSI device for the panel was registered by the DSI host, so it is an
error to unregister it from the panel driver. Drop the call to
mipi_dsi_device_unregister().
Fixes: c7f66d32dd ("drm/panel: add support for rm69299 visionox panel")
Reviewed-by: Jessica Zhang <quic_jesszhan@quicinc.com>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240404-drop-panel-unregister-v1-1-9f56953c5fb9@linaro.org
Given that failing to find a DSI host causes the driver to defer probe,
make use of dev_err_probe() to log the reason. This makes the defer
probe reason available and avoids alerting userspace about something
that is not necessarily an error.
Suggested-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>
Signed-off-by: Robert Foss <rfoss@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240415-anx7625-defer-log-no-dsi-host-v3-9-619a28148e5c@collabora.com
Given that failing to find a DSI host causes the driver to defer probe,
make use of dev_err_probe() to log the reason. This makes the defer
probe reason available and avoids alerting userspace about something
that is not necessarily an error.
Fixes: 623a3531e9 ("drm/panel: Add driver for Novatek NT35950 DSI DriverIC panels")
Suggested-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>
Signed-off-by: Robert Foss <rfoss@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240415-anx7625-defer-log-no-dsi-host-v3-8-619a28148e5c@collabora.com
If we're using the AUX channel for eDP backlight and it fails to probe
for some reason, let's _not_ fail the panel probe.
At least one case where we could fail to init the backlight is because
of a dead or physically missing panel. As talked about in detail in
the earlier patch in this series, ("drm/panel-edp: If we fail to
powerup/get EDID, use conservative timings"), this can cause the
entire system's display pipeline to fail to come up and that's
non-ideal.
If we fail to init the backlight for some transitory reason, we should
dig in and see if there's a way to fix this (perhaps retries?). Even
in that case, though, having a panel whose backlight is stuck at 100%
(the default, at least in the panel Samsung ATNA33XC20 I tested) is
better than having no panel at all.
Reviewed-by: Hsin-Yi Wang <hsinyi@chromium.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240325145626.3.I552e8af0ddb1691cc0fe5d27ea3d8020e36f7006@changeid
If at boot we fail to power up the eDP panel (most often happens if
the eDP panel never asserts HPD to us) or if we are unable to read the
EDID at bootup to figure out the panel's ID then let's use the
conservative eDP panel powerup/powerdown timings but _not_ fail the
probe.
It might seem strange to _not_ fail the probe in this case since we
were unable to powerup the panel and confirm it's there. However,
there is a reason to do this. Specifically, if we fail to probe the
panel then it really throws the whole display pipeline for loop. Most
DRM subsystems are written so that they wait until all components
(including the panel) have probed before they set everything up. When
the panel doesn't come up then this never happens. As a side effect of
not setting everything up then other display adapters don't get
initialized. As a practical example, I can see that if I open up a
sc7180-trogdor based Chromebook that's using the generic "edp-panel"
and unplug the eDP panel that it causes the _external_ DP monitor not
to function. This is obviously bad because it means that a device with
a dead eDP panel becomes e-waste when it could instead still be given
useful life with an external display.
NOTES:
- When we fail to probe like this, boot is a bit slow because we try
several times to power the panel up. This doesn't feel horrible
because it'll eventually work and the retries are known to help
bring some panels up.
- In the case where we hit the condition of failing to power up, the
display will likely _never_ have a chance to work again until
reboot. Once the panel-edp pm_runtime resume function fails it
doesn't ever seem to retry. This is probably for the best given that
we don't have any real timing/modes. eDP isn't expected to be
"hotplugged" so this makes some sense.
- It turns out that this makes panel-edp behave more similarly for
users of the generic "edp-panel" compatible string and the old fixed
panel compatible string. With the old fixed panel compatible string
we don't talk to the panel during probe so we'd actually behave much
the same way that we'll now behave for the generic "edp-panel".
Reviewed-by: Hsin-Yi Wang <hsinyi@chromium.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240325145626.2.Ia7a55a9657b0b6aa4644fd497a0bc595a771258c@changeid
If we're using the generic "edp-panel" compatible string and we fail
to detect an eDP panel then we fall back to conservative timings for
powering up and powering down the panel. Abstract out the function for
setting these timings so it can be used in future patches.
No functional change expected--just code movement.
Reviewed-by: Hsin-Yi Wang <hsinyi@chromium.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240325145626.1.I659b2517d9f619d09e804e071591ecab76335dfb@changeid
Most of our helpers have relied on being selected so far through
Kconfig, but that creates issues when we have multiple layers of helpers
with some depending on others.
Indeed, select doesn't select a dependency's dependencies, and thus
isn't super intuitive. Depends on however doesn't have that limitation,
so we can just switch all the drivers that were selecting
DRM_DISPLAY_DP_HELPER to depend on it.
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Link: https://lore.kernel.org/r/20240327-kms-kconfig-helpers-v3-10-eafee11b84b3@kernel.org
Signed-off-by: Maxime Ripard <mripard@kernel.org>
Most of our helpers have relied on being selected so far through
Kconfig, but that creates issues when we have multiple layers of helpers
with some depending on others.
Indeed, select doesn't select a dependency's dependencies, and thus
isn't super intuitive. Depends on however doesn't have that limitation,
so we can just switch all the drivers that were selecting
DRM_DISPLAY_DP_AUX_BUS to depend on it.
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Link: https://lore.kernel.org/r/20240327-kms-kconfig-helpers-v3-9-eafee11b84b3@kernel.org
Signed-off-by: Maxime Ripard <mripard@kernel.org>
Most of our helpers have relied on being selected so far through
Kconfig, but that creates issues when we have multiple layers of helpers
with some depending on others.
Indeed, select doesn't select a dependency's dependencies, and thus
isn't super intuitive. Depends on however doesn't have that limitation,
so we can just switch all the drivers that were selecting
DRM_DISPLAY_HELPER to depend on it.
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Link: https://lore.kernel.org/r/20240327-kms-kconfig-helpers-v3-8-eafee11b84b3@kernel.org
Signed-off-by: Maxime Ripard <mripard@kernel.org>
While most display helpers Kconfig symbols have the DRM_DISPLAY prefix,
the DisplayPort AUX bus implementation uses DRM_DP_AUX_BUS.
Since the number of users is limited and it's a selected symbol, we can
easily rename it to make it consistent.
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://lore.kernel.org/r/20240327-kms-kconfig-helpers-v3-1-eafee11b84b3@kernel.org
Signed-off-by: Maxime Ripard <mripard@kernel.org>
The init sequence specifies the 0x11 and 0x29 dsi commands, which are
the exit-sleep and display-on commands.
In the actual prepare step the driver already uses the appropriate
function calls for those, so drop the duplicates.
Fixes: e5f9d54341 ("drm/panel: ltk050h3146w: add support for Leadtek LTK050H3148W-CTA6 variant")
Signed-off-by: Heiko Stuebner <heiko.stuebner@cherry.de>
Reviewed-by: Quentin Schulz <quentin.schulz@theobroma-systems.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240320131232.327196-2-heiko@sntech.de
Similar to other variants, the LTK050H3148W wants to run in video mode
when displaying data. So far only the Synopsis DSI driver was using this
panel and it is always switching to video mode, independent of this flag
being set.
Other DSI drivers might handle this differently, so add the flag.
Fixes: e5f9d54341 ("drm/panel: ltk050h3146w: add support for Leadtek LTK050H3148W-CTA6 variant")
Signed-off-by: Heiko Stuebner <heiko.stuebner@cherry.de>
Reviewed-by: Quentin Schulz <quentin.schulz@theobroma-systems.com>
Acked-by: Jessica Zhang <quic_jesszhan@quicinc.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240320131232.327196-1-heiko@sntech.de
