mirror_ubuntu-kernels/drivers/gpu/drm/imx
Sebastian Reichel 94dfec48fc drm/imx: Add 8 pixel alignment fix
Some standard resolutions like 1366x768 do not work properly with
i.MX6 SoCs, since the horizontal resolution needs to be aligned
to 8 pixels (so 1360x768 or 1368x768 would work).

This patch allocates framebuffers allocated to 8 pixels. The extra
time required to send the extra pixels are removed from the blank
time. In order to expose the correct display size to userspace,
the stride is increased without increasing the width.

Without this patch systems with this display resolution hang
indefinitely during boot up.

Suggested-by: Boris Brezillon <boris.brezillon@collabora.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Link: https://lore.kernel.org/r/20210428222953.235280-3-sebastian.reichel@collabora.com
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2021-05-10 16:39:54 +02:00
..
dcss drm: Use state helper instead of the plane state pointer 2021-02-25 08:05:28 +01:00
dw_hdmi-imx.c drm/imx: dw_hdmi-imx: use drm managed resources 2021-01-04 12:59:33 +01:00
imx-drm-core.c drm/imx: Add 8 pixel alignment fix 2021-05-10 16:39:54 +02:00
imx-drm.h drm/imx: Use simple encoder 2020-04-02 14:16:44 +02:00
imx-ldb.c drm/imx: Add 8 pixel alignment fix 2021-05-10 16:39:54 +02:00
imx-tve.c drm/imx: imx-tve: use drm managed resources 2021-01-04 12:59:33 +01:00
ipuv3-crtc.c drm/imx: Add 8 pixel alignment fix 2021-05-10 16:39:54 +02:00
ipuv3-plane.c drm/imx: Add 8 pixel alignment fix 2021-05-10 16:39:54 +02:00
ipuv3-plane.h drm/imx: ipuv3-plane: use drm managed resources 2021-01-04 12:59:34 +01:00
Kconfig drm/imx: dw_hdmi-imx: depend on OF to fix randconfig compile tests on x86_64 2021-01-07 11:54:21 +01:00
Makefile drm/imx: Add initial support for DCSS on iMX8MQ 2020-09-09 16:39:48 +02:00
parallel-display.c drm/imx: parallel-display: use drm managed resources 2021-01-04 12:59:34 +01:00