linux/arch/arm
Olof Johansson 515fa3ee9d Fix LCD backlight issue for droid4
There was a bit of an integration glitch with the LED backlight series.
 The LED related parts got merged into v5.6-rc1, but the actual backlight
 driver got left out.
 
 This caused an issue on at least droid4 where the LCD backlight can not
 yet be enabled automatically. And the LCD backlight can no longer be
 enabled manually either via sysfs.
 
 The integration glitch happened because some pending comments from me.
 There was some confusion on which device tree property we should use for
 the default brightness property.
 
 After discussing how to fix this on the mailing lists, we came to the
 conclusion that it's best to fix this issue properly by adding the
 missing driver.
 
 The other solutions would mean backpedaling and try to come up with some
 temporary solution that really does not solve the issue for users. The
 patch for led_bl.c has been around for quite a while and tested by many
 users and was assumed to be merged as part of the LED backlight series.
 
 For the brightness property to use, we ended up using the more common
 "default-brightness-level" rather than "default-brightness" used by
 some backlight drivers.
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Merge tag 'omap-for-v5.6/droid4-lcd-fix-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into arm/fixes

Fix LCD backlight issue for droid4

There was a bit of an integration glitch with the LED backlight series.
The LED related parts got merged into v5.6-rc1, but the actual backlight
driver got left out.

This caused an issue on at least droid4 where the LCD backlight can not
yet be enabled automatically. And the LCD backlight can no longer be
enabled manually either via sysfs.

The integration glitch happened because some pending comments from me.
There was some confusion on which device tree property we should use for
the default brightness property.

After discussing how to fix this on the mailing lists, we came to the
conclusion that it's best to fix this issue properly by adding the
missing driver.

The other solutions would mean backpedaling and try to come up with some
temporary solution that really does not solve the issue for users. The
patch for led_bl.c has been around for quite a while and tested by many
users and was assumed to be merged as part of the LED backlight series.

For the brightness property to use, we ended up using the more common
"default-brightness-level" rather than "default-brightness" used by
some backlight drivers.

* tag 'omap-for-v5.6/droid4-lcd-fix-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: dts: droid4: Configure LED backlight for lm3532
  backlight: add led-backlight driver

Link: https://lore.kernel.org/r/pull-1582303901-96693@atomide.com
Signed-off-by: Olof Johansson <olof@lixom.net>
2020-02-24 09:54:11 -08:00
..
boot Fix LCD backlight issue for droid4 2020-02-24 09:54:11 -08:00
common
configs Fix LCD backlight issue for droid4 2020-02-24 09:54:11 -08:00
crypto crypto: arm/chacha - fix build failured when kernel mode NEON is disabled 2020-01-22 16:21:11 +08:00
include A set of fixes for the interrupt subsystem: 2020-02-09 11:56:41 -08:00
kernel ARM development updates for 5.6-rc1: 2020-02-04 13:12:19 +00:00
kvm KVM: Drop kvm_arch_vcpu_setup() 2020-01-27 19:59:28 +01:00
lib Merge branch 'misc' into fixes 2019-10-22 17:37:29 +01:00
mach-actions
mach-alpine
mach-artpec
mach-asm9260
mach-aspeed
mach-at91 ARM: at91: pm: use of_device_id array to find the proper shdwc node 2020-01-10 23:40:31 +01:00
mach-axxia
mach-bcm ARM: SoC platform updates 2020-02-08 13:55:25 -08:00
mach-berlin
mach-clps711x
mach-cns3xxx
mach-davinci ARM: SoC: late updates 2020-02-08 14:17:27 -08:00
mach-digicolor
mach-dove
mach-ebsa110
mach-efm32
mach-ep93xx
mach-exynos ARM: SoC platform updates 2020-02-08 13:55:25 -08:00
mach-footbridge ARM: 8911/1: move pcibios_report_status to <asm/pci.h> 2019-10-27 21:14:40 +00:00
mach-gemini
mach-highbank
mach-hisi ARM: hisi: drop useless depend on ARCH_MULTI_V7 2019-10-26 15:31:22 +08:00
mach-imx ARM: imx: only select ARM_ERRATA_814220 for ARMv7-A 2020-01-09 18:48:35 +08:00
mach-integrator
mach-iop32x
mach-ixp4xx ARM/net: ixp4xx: Pass ethernet physical base as resource 2020-01-12 12:59:53 -08:00
mach-keystone
mach-lpc18xx
mach-lpc32xx
mach-mediatek
mach-meson
mach-milbeaut
mach-mmp ARM: mmp: do not divide the clock rate 2020-01-06 09:18:50 -08:00
mach-moxart
mach-mv78xx0
mach-mvebu
mach-mxs
mach-nomadik
mach-npcm ARM: npcm: Bring back GPIOLIB support 2020-02-09 03:44:51 -08:00
mach-nspire
mach-omap1 ARM: OMAP1: drop duplicated dependency on ARCH_OMAP1 2019-11-11 12:30:39 -08:00
mach-omap2 ARM: SoC: late updates 2020-02-08 14:17:27 -08:00
mach-orion5x
mach-oxnas
mach-picoxcell
mach-prima2
mach-pxa USB/Thunderbolt/PHY driver updates for 5.6-rc1 2020-01-29 10:09:44 -08:00
mach-qcom
mach-rda
mach-realview
mach-rockchip
mach-rpc
mach-s3c24xx ARM: s3c24xx: Switch to atomic pwm API in rx1950 2020-01-21 20:56:47 +01:00
mach-s3c64xx ARM: SoC platform updates 2020-02-08 13:55:25 -08:00
mach-s5pv210
mach-sa1100
mach-shmobile remove ioremap_nocache and devm_ioremap_nocache 2020-01-06 09:45:59 +01:00
mach-socfpga arm: socfpga: execute cold reboot by default 2019-11-22 12:12:10 -06:00
mach-spear
mach-sti
mach-stm32
mach-sunxi ARM: sunxi: Fix CPU powerdown on A83T 2019-10-29 09:09:56 +01:00
mach-tango
mach-tegra ARM: tegra: Use clk_m CPU on Tegra124 LP1 resume 2020-01-08 12:58:46 +01:00
mach-u300 pinctrl: Allow modules to use pinctrl_[un]register_mappings 2019-12-30 14:27:17 +01:00
mach-uniphier
mach-ux500 mfd: db8500-prcmu: Support U8420-sysclk firmware 2019-11-11 08:45:04 +00:00
mach-versatile
mach-vexpress ARM: vexpress: Set-up shared OPP table instead of individual for each CPU 2019-12-09 11:52:50 +00:00
mach-vt8500
mach-zx
mach-zynq ARM: zynq: use physical cpuid in zynq_slcr_cpu_stop/start 2020-01-08 15:21:09 +01:00
mm ARM development updates for 5.6-rc1: 2020-02-04 13:12:19 +00:00
net ARM: net: bpf: Improve prologue code sequence 2019-12-11 14:34:26 +01:00
nwfpe
oprofile
plat-omap dmaengine: ti: omap-dma: Configure global priority register directly 2019-12-30 09:45:25 -08:00
plat-orion
plat-pxa spi: pxa2xx: No need to keep pointer to platform device 2019-10-18 18:24:50 +01:00
plat-samsung ARM: samsung: Rename Samsung and Exynos to lowercase 2020-01-07 20:44:22 +01:00
plat-versatile
probes
tools threads-v5.6 2020-01-29 19:38:34 -08:00
vdso kbuild: rename hostprogs-y/always to hostprogs/always-y 2020-02-04 01:53:07 +09:00
vfp
xen dma-mapping updates for 5.5-rc1 2019-11-28 11:16:43 -08:00
Kconfig ARM development updates for 5.6-rc1: 2020-02-04 13:12:19 +00:00
Kconfig-nommu
Kconfig.debug ARM: debug-ll: select DEBUG_AT91_RM9200_DBGU for sam9x60 2019-12-10 00:45:30 +01:00
Makefile