mirror_ubuntu-kernels/arch/arm
Linus Walleij feedaacdad Input: atmel_mxt_ts - fix up inverted RESET handler
This driver uses GPIO descriptors to drive the touchscreen RESET line. In
the existing device trees this has in conflict with intution been flagged
as GPIO_ACTIVE_HIGH and the driver then applies the reverse action by
driving the line low (setting to 0) to enter reset state and driving the
line high (setting to 1) to get out of reset state.

The correct way to handle active low GPIO lines is to provide the
GPIO_ACTIVE_LOW in the device tree (thus properly describing the hardware)
and letting the GPIO framework invert the assertion (driving high) to a
low level and vice versa.

This is considered a bug since the device trees are incorrectly
mis-specifying the line as active high.

Fix the driver and all device trees specifying a reset line.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Philippe Schenker <philippe.schenker@toradex.com>
Acked-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20201104153032.1387747-1-linus.walleij@linaro.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2020-11-17 18:14:08 -08:00
..
boot Input: atmel_mxt_ts - fix up inverted RESET handler 2020-11-17 18:14:08 -08:00
common This tree adds the sched_set_fifo*() encapsulation APIs to remove 2020-08-06 11:55:43 -07:00
configs ARM: configs: Update Integrator defconfig 2020-08-20 18:12:49 -07:00
crypto crypto: Replace HTTP links with HTTPS ones 2020-07-23 17:34:20 +10:00
include A set oftimekeeping/VDSO updates: 2020-08-14 14:26:08 -07:00
kernel treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
lib mmap locking API: use coccinelle to convert mmap_sem rwsem call sites 2020-06-09 09:39:14 -07:00
mach-actions ARM: actions: Drop unneeded select of COMMON_CLK 2020-05-15 23:27:37 +02:00
mach-alpine ARM: alpine: Drop unneeded select of HAVE_SMP 2020-05-15 23:27:37 +02:00
mach-artpec
mach-asm9260 ARM: asm9260: Drop unneeded select of GENERIC_CLOCKEVENTS 2020-05-15 23:27:37 +02:00
mach-aspeed ARM: aspeed: Drop unneeded select of HAVE_SMP 2020-05-15 23:27:37 +02:00
mach-at91 ARM: at91: Replace HTTP links with HTTPS ones 2020-07-18 00:59:26 +02:00
mach-axxia
mach-bcm ARM: bcm: Select ARM_TIMER_SP804 for ARCH_BCM_NSP 2020-06-14 15:09:49 -07:00
mach-berlin ARM: berlin: Drop unneeded select of HAVE_SMP 2020-05-15 23:27:37 +02:00
mach-clps711x ARM: clps711x: Drop unneeded select of multi-platform selected options 2020-05-15 23:27:37 +02:00
mach-cns3xxx
mach-davinci ARM: davinci: dm646x-evm: Simplify error handling in 'evm_sw_setup()' 2020-07-22 00:34:21 +05:30
mach-digicolor
mach-dove
mach-ebsa110 mm: don't include asm/pgtable.h if linux/mm.h is already included 2020-06-09 09:39:13 -07:00
mach-efm32
mach-ep93xx treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
mach-exynos ARM: SoC driver updates for v5.9 2020-08-03 19:30:59 -07:00
mach-footbridge treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
mach-gemini
mach-highbank
mach-hisi
mach-imx ARM: imx6q: Fixup RCU usage for cpuidle 2020-09-30 17:42:43 +02:00
mach-integrator mm: reorder includes after introduction of linux/pgtable.h 2020-06-09 09:39:13 -07:00
mach-iop32x mm: don't include asm/pgtable.h if linux/mm.h is already included 2020-06-09 09:39:13 -07:00
mach-ixp4xx mm: don't include asm/pgtable.h if linux/mm.h is already included 2020-06-09 09:39:13 -07:00
mach-keystone mm: reorder includes after introduction of linux/pgtable.h 2020-06-09 09:39:13 -07:00
mach-lpc18xx
mach-lpc32xx
mach-mediatek ARM: mediatek: Replace <linux/clk-provider.h> by <linux/of_clk.h> 2020-05-15 22:55:06 +02:00
mach-meson
mach-milbeaut
mach-mmp treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
mach-moxart
mach-mstar ARM: mstar: Add machine for MStar/Sigmastar Armv7 SoCs 2020-07-28 11:13:49 +02:00
mach-mv78xx0
mach-mvebu ARM: mvebu: Drop unneeded select of HAVE_SMP 2020-05-15 23:27:38 +02:00
mach-mxs
mach-nomadik
mach-npcm
mach-nspire
mach-omap1 media updates for v5.9-rc1 2020-08-07 13:00:53 -07:00
mach-omap2 ARM: SoC fixes 2020-09-13 14:54:40 -07:00
mach-orion5x treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
mach-oxnas ARM: oxnas: make ox820_boot_secondary static 2020-05-12 10:29:33 +02:00
mach-picoxcell
mach-prima2 ARM: prima2: Drop unneeded select of HAVE_SMP 2020-05-15 23:27:38 +02:00
mach-pxa media: mach-pxa: palmz72/pcm990: remove soc_camera dependencies 2020-07-04 12:19:12 +02:00
mach-qcom
mach-rda
mach-realtek
mach-realview VExpress modularization 2020-05-15 23:04:40 +02:00
mach-rockchip
mach-rpc treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
mach-s3c24xx ARM: s3c24xx: Replace HTTP links with HTTPS ones 2020-07-20 16:42:28 +02:00
mach-s3c64xx
mach-s5pv210
mach-sa1100 treewide: Remove uninitialized_var() usage 2020-07-16 12:35:15 -07:00
mach-shmobile
mach-socfpga ARM: socfpga: PM: add missing put_device() call in socfpga_setup_ocram_self_refresh() 2020-07-28 13:57:36 -05:00
mach-spear
mach-sti Revert "ARM: sti: Implement dummy L2 cache's write_sec" 2020-06-28 14:46:54 +02:00
mach-stm32
mach-sunxi
mach-tango
mach-tegra treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
mach-u300
mach-uniphier
mach-ux500
mach-versatile VExpress modularization 2020-05-15 23:04:40 +02:00
mach-vexpress Revert "ARM: vexpress: Don't select VEXPRESS_CONFIG" 2020-05-28 12:30:33 +02:00
mach-vt8500 ARM: Remove redundant CLKDEV_LOOKUP selects 2020-05-05 12:33:57 -07:00
mach-zx
mach-zynq mm: reorder includes after introduction of linux/pgtable.h 2020-06-09 09:39:13 -07:00
mm treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
net
nwfpe
oprofile
plat-omap treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
plat-orion ARM: orion/gpio: Make use of for_each_requested_gpio() 2020-07-18 22:49:23 +02:00
plat-pxa
plat-samsung
plat-versatile
probes treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
tools all arch: remove system call sys_sysctl 2020-08-14 19:56:56 -07:00
vdso ARM: vdso: Don't use gcc plugins for building vgettimeofday.c 2020-06-24 07:48:27 -07:00
vfp ARM: 8991/1: use VFP assembler mnemonics if available 2020-07-21 16:33:39 +01:00
xen arm/arm64: xen: Fix to convert percpu address to gfn correctly 2020-10-07 07:08:43 +02:00
Kbuild ARM: 8981/1: add arch/arm/Kbuild 2020-07-21 16:33:35 +01:00
Kconfig ARM development for 5.9-rc1: 2020-08-06 10:17:00 -07:00
Kconfig-nommu
Kconfig.assembler ARM: 8991/1: use VFP assembler mnemonics if available 2020-07-21 16:33:39 +01:00
Kconfig.debug treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
Makefile ARM development for 5.9-rc1: 2020-08-06 10:17:00 -07:00