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Matthew Schwartz 44b0fed0a5 drm/amd/display: Only restore backlight after amdgpu_dm_init or dm_resume 
On clients that utilize AMD_PRIVATE_COLOR properties for HDR support,
brightness sliders can include a hardware controlled portion and a
gamma-based portion. This is the case on the Steam Deck OLED when using
gamescope with Steam as a client.

When a user sets a brightness level while HDR is active, the gamma-based
portion and/or hardware portion are adjusted to achieve the desired
brightness. However, when a modeset takes place while the gamma-based
portion is in-use, restoring the hardware brightness level overrides the
user's overall brightness level and results in a mismatch between what
the slider reports and the display's current brightness.

To avoid overriding gamma-based brightness, only restore HW backlight
level after boot or resume. This ensures that the backlight level is
set correctly after the DC layer resets it while avoiding interference
with subsequent modesets.

Fixes: 7875afafba ("drm/amd/display: Fix brightness level not retained over reboot")
Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/4551
Signed-off-by: Matthew Schwartz <matthew.schwartz@linux.dev>
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit a490c8d77d)
Cc: stable@vger.kernel.org
History 2025-09-23 13:51:20 -04:00
..
accel accel/ivpu: Prevent recovery work from being queued during device removal 2025-09-01 12:37:21 +02:00
accessibility treewide: Switch/rename to timer_delete[_sync]() 2025-04-05 10:30:12 +02:00
acpi Several RISC-V fixes for v6.17-rc5: 2025-09-07 08:15:56 -07:00
amba PM: domains: Add flags to specify power on attach/detach 2025-07-07 20:41:20 +02:00
android Char / Misc / IIO / other driver updates for 6.17-rc1 2025-07-29 09:52:01 -07:00
ata ata: ahci_xgene: Use int type for 'rc' to store error codes 2025-08-28 13:36:14 +09:00
atm atm: atmtcp: Prevent arbitrary write in atmtcp_recv_control(). 2025-08-22 17:23:15 -07:00
auxdisplay treewide, timers: Rename from_timer() to timer_container_of() 2025-06-08 09:07:37 +02:00
base Mitigate VMSCAPE issue with indirect branch predictor flushes 2025-09-10 20:52:16 -07:00
bcma treewide: rename GPIO set callbacks back to their original names 2025-08-07 10:07:06 +02:00
block block-6.17-20250918 2025-09-19 12:26:20 -07:00
bluetooth Bluetooth: vhci: Prevent use-after-free by removing debugfs files early 2025-08-29 14:47:20 -04:00
bus soc: driver updates for 6.17 2025-07-29 11:13:27 -07:00
cache cache: sifive_ccache: Add ESWIN EIC7700 support 2025-04-07 16:53:46 +01:00
cdrom cdrom: Call cdrom_mrw_exit from cdrom_release function 2025-07-22 19:10:17 -06:00
cdx cdx: Fix off-by-one error in cdx_rpmsg_probe() 2025-08-19 12:55:16 +02:00
char Some small fixes for the IPMI driver 2025-08-07 07:38:25 +03:00
clk Allwinner Clock Fixes for 6.17 2025-09-19 21:28:01 -07:00
clocksource A treewide cleanup of struct cycle_counter const annotations: 2025-07-29 14:02:53 -07:00
comedi comedi: Make insn_rw_emulate_bits() do insn->n samples 2025-08-19 12:57:01 +02:00
connector connector/cn_proc: revert "connector: Fix proc_event_num_listeners count not cleared" 2024-02-13 11:15:44 +01:00
counter Second set of Counter updates for 6.16 2025-05-24 08:29:32 +02:00
cpufreq Merge branches 'pm-sleep' and 'pm-em' 2025-09-11 14:22:35 +02:00
cpuidle cpuidle: governors: menu: Avoid selecting states with too much latency 2025-08-18 19:04:25 +02:00
crypto crypto: ccp - Always pass in an error pointer to __sev_platform_shutdown_locked() 2025-09-13 12:07:44 +08:00
cxl Significant patch series in this pull request: 2025-08-03 16:23:09 -07:00
dax mm: remove callers of pfn_t functionality 2025-07-09 22:42:19 -07:00
dca Driver core changes for 6.11-rc1 2024-07-25 10:42:22 -07:00
devfreq PM / devfreq: Add HiSilicon uncore frequency scaling driver 2025-07-14 20:23:57 +09:00
dio dio: Have dio_bus_match() callback take a const * 2024-07-10 15:38:14 +02:00
dma dmaengine: dw: dmamux: Fix device reference leak in rzn1_dmamux_route_allocate 2025-09-02 15:01:51 +05:30
dma-buf drm for 6.17-rc1 2025-07-30 19:26:49 -07:00
dpll dpll: fix clock quality level reporting 2025-09-14 13:03:40 -07:00
edac EDAC/altera: Delete an inappropriate dma_free_coherent() call 2025-08-25 13:56:16 +02:00
eisa EISA: Move devlist.h out of obj to always 2025-05-07 07:01:01 +02:00
extcon Update extcon next for v6.14 2025-01-12 13:44:27 +01:00
firewire firewire: core: fix overlooked update of subsystem ABI version 2025-09-20 12:17:50 +09:00
firmware efi: stmm: Drop unneeded null pointer check 2025-08-26 14:49:42 +02:00
fpga fpga: zynq_fpga: Fix the wrong usage of dma_map_sgtable() 2025-08-19 12:54:45 +02:00
fsi Driver core changes for 6.17-rc1 2025-07-29 12:15:39 -07:00
fwctl fwctl: Fix repeated device word in log message 2025-04-11 20:47:45 -03:00
gnss [tree-wide] finally take no_llseek out 2024-09-27 08:18:43 -07:00
gpio intel-gpio for v6.17-1 2025-09-16 11:36:37 +02:00
gpu drm/amd/display: Only restore backlight after amdgpu_dm_init or dm_resume 2025-09-23 13:51:20 -04:00
greybus greybus: gb-beagleplay: remove unneeded calls to devm_gpiod_put() 2025-07-01 12:29:37 +02:00
hid hid-for-linus-2025082901 2025-08-29 07:44:14 -07:00
hsi treewide, timers: Rename from_timer() to timer_container_of() 2025-06-08 09:07:37 +02:00
hte treewide: Switch/rename to timer_delete[_sync]() 2025-04-05 10:30:12 +02:00
hv ARM: 2025-07-30 17:14:01 -07:00
hwmon hwmon: (ina238) Correctly clamp power limits 2025-09-01 08:03:05 -07:00
hwspinlock hwspinlock: Remove unused hwspin_lock_get_id() 2025-03-21 17:12:04 -05:00
hwtracing mm: remove callers of pfn_t functionality 2025-07-09 22:42:19 -07:00
i2c i2c: rtl9300: remove broken SMBus Quick operation support 2025-09-04 00:31:34 +02:00
i3c i3c: add missing include to internal header 2025-07-31 02:25:17 +02:00
idle intel_idle: Allow loading ACPI tables for any family 2025-08-11 21:43:26 +02:00
iio iio: pressure: bmp280: Use IS_ERR() in bmp280_common_probe() 2025-08-18 19:22:18 +01:00
infiniband RDMA/hns: Fix dip entries leak on devices newer than hip09 2025-08-13 07:22:18 -04:00
input Input updates for v6.17-rc5 2025-09-14 08:09:37 -07:00
interconnect Char / Misc / IIO / other driver updates for 6.17-rc1 2025-07-29 09:52:01 -07:00
iommu iommu/amd/pgtbl: Fix possible race while increase page table level 2025-09-19 09:39:40 +02:00
ipack driver core: have match() callback in struct bus_type take a const * 2024-07-03 15:16:54 +02:00
irqchip irqchip/gic-v5: Remove undue WARN_ON()s in the IRS affinity parsing 2025-08-24 12:54:06 +02:00
isdn mISDN: Fix memory leak in dsp_hwec_enable() 2025-08-29 19:19:39 -07:00
leds treewide: rename GPIO set callbacks back to their original names 2025-08-07 10:07:06 +02:00
macintosh treewide: Switch/rename to timer_delete[_sync]() 2025-04-05 10:30:12 +02:00
mailbox mailbox/pcc: support mailbox management of the shared buffer 2025-08-07 23:49:56 -05:00
mcb mcb: use sysfs_emit_at() instead of scnprintf() in show functions 2025-07-16 14:17:07 +02:00
md block-6.17-20250918 2025-09-19 12:26:20 -07:00
media media: Remove redundant pm_runtime_mark_last_busy() calls 2025-08-18 09:55:08 +02:00
memory Memory controller drivers for v6.17 2025-07-22 22:47:00 +02:00
memstick memstick: Fix deadlock by moving removing flag earlier 2025-08-18 12:01:20 +02:00
message SCSI misc on 20250326 2025-03-26 19:57:34 -07:00
mfd treewide: rename GPIO set callbacks back to their original names 2025-08-07 10:07:06 +02:00
misc treewide: rename GPIO set callbacks back to their original names 2025-08-07 10:07:06 +02:00
mmc mmc: sdhci-pci-gli: GL9767: Fix initializing the UHS-II interface during a power-on 2025-09-12 15:00:52 +02:00
most most: core: Drop device reference after usage in get_channel() 2025-08-19 12:57:34 +02:00
mtd mtd: spinand: winbond: Fix oob_layout for W25N01JW 2025-09-05 17:03:44 +02:00
mux hardening updates for v6.17-rc1 2025-07-28 17:16:12 -07:00
net octeontx2-pf: Fix use-after-free bugs in otx2_sync_tstamp() 2025-09-18 07:47:18 -07:00
nfc NFC: trf7970a: Create device-tree parameter for RX gain reduction 2025-06-27 15:08:57 -07:00
ntb NTB/msi: Switch MSI descriptor locking to lock guard() 2025-04-09 20:47:29 +02:00
nubus nubus: Make nubus_bus_type static and constant 2024-01-03 13:33:59 +01:00
nvdimm Summary of significant series in this pull request: 2025-07-31 14:57:54 -07:00
nvme nvme: fix PI insert on write 2025-09-02 12:21:42 -07:00
nvmem Driver core changes for 6.17-rc1 2025-07-29 12:15:39 -07:00
of 17 hotfixes. 13 are cc:stable and the remainder address post-6.16 issues 2025-09-02 13:18:00 -07:00
opp OPP: switch to use kmemdup_array() 2025-05-19 15:37:53 +05:30
parisc parisc/power: Move soft-power into power.c 2025-07-23 11:52:48 +02:00
parport treewide, timers: Rename from_timer() to timer_container_of() 2025-06-08 09:07:37 +02:00
pci pci-v6.17-fixes-3 2025-09-12 10:46:10 -07:00
pcmcia pcmcia: Add error handling for add_interval() in do_validate_mem() 2025-08-16 15:49:58 +02:00
peci module: Convert symbol namespace to string literal 2024-12-02 11:34:44 -08:00
perf drivers/perf: hisi: Support PMUs with no interrupt 2025-07-14 15:42:16 +01:00
phy phy: qcom: qmp-pcie: Fix PHY initialization when powered down by firmware 2025-09-01 22:29:20 +05:30
pinctrl pinctrl: airoha: Fix return value in pinconf callbacks 2025-08-22 15:08:58 +02:00
platform platform-drivers-x86 for v6.17-4 2025-09-18 09:22:34 -07:00
pmdomain pmdomain: renesas: rmobile-sysc: Don't keep unused PM domains powered-on 2025-09-11 12:36:55 +02:00
pnp x86/platform/amd: Move the <asm/amd_nb.h> header to <asm/amd/nb.h> 2025-04-14 09:34:14 +02:00
power power: supply: bq27xxx: restrict no-battery detection to bq27000 2025-09-06 02:11:38 +02:00
powercap platform-drivers-x86 for v6.17-1 2025-07-28 23:21:28 -07:00
pps pps: fix poll support 2025-07-01 12:29:29 +02:00
ps3 ps3: Correct some typos in comments 2024-11-15 00:32:29 +11:00
ptp ptp: ocp: fix use-after-free bugs causing by ptp_ocp_watchdog 2025-08-29 19:10:22 -07:00
pwm treewide: rename GPIO set callbacks back to their original names 2025-08-07 10:07:06 +02:00
rapidio Merge 6.16-rc3 into driver-core-next 2025-06-23 07:53:36 +02:00
ras Linux 6.15-rc5 2025-05-06 10:00:58 +02:00
regulator regulator: sy7636a: fix lifecycle of power good gpio 2025-09-08 16:33:24 +01:00
remoteproc remoteproc updates for v6.17 2025-08-01 15:02:25 -07:00
reset This is the usual collection of primarily clk driver updates. The big part of 2025-07-31 13:36:27 -07:00
rpmsg remoteproc updates for v6.17 2025-08-01 15:02:25 -07:00
rtc RTC for 6.17 2025-08-03 20:17:34 -07:00
s390 s390/sclp: Fix SCCB present check 2025-08-20 16:37:27 +02:00
sbus Get rid of 'remove_new' relic from platform driver struct 2024-12-01 15:12:43 -08:00
scsi scsi: sr: Reinstate rotational media flag 2025-08-30 21:46:21 -04:00
sh sh: Switch to irq_domain_create_*() 2025-05-16 21:06:11 +02:00
siox Driver core changes for 6.11-rc1 2024-07-25 10:42:22 -07:00
slimbus slimbus: messaging: Free transaction ID in delayed interrupt scenario 2025-02-20 15:19:51 +01:00
soc soc: fixes for 6.17, part 2 2025-09-03 14:44:34 -07:00
soundwire soundwire updates for 6.17 2025-08-01 11:09:27 -07:00
spi spi: spi-qpic-snand: unregister ECC engine on probe error and device remove 2025-09-03 14:49:58 +01:00
spmi irqdomain: spmi: Switch to irq_domain_create_tree() 2025-05-21 14:53:17 +02:00
ssb treewide: rename GPIO set callbacks back to their original names 2025-08-07 10:07:06 +02:00
staging treewide: rename GPIO set callbacks back to their original names 2025-08-07 10:07:06 +02:00
target SCSI misc on 20250806 2025-08-06 15:44:25 +03:00
tc TC: Fix the wrong format specifier 2024-11-12 15:48:08 +01:00
tee OP-TEE driver fix for v6.17 2025-09-01 10:35:03 +02:00
thermal Driver core changes for 6.17-rc1 2025-07-29 12:15:39 -07:00
thunderbolt thunderbolt: Fix copy+paste error in match_service_id() 2025-07-21 16:33:43 +02:00
tty TTY/Serial fixes for 6.17-rc6 2025-09-14 10:54:54 -07:00
ufs scsi: ufs: mcq: Fix memory allocation checks for SQE and CQE 2025-09-09 22:38:38 -04:00
uio Char/Misc/IIO pull request for 6.16-rc1 2025-06-06 11:50:47 -07:00
usb USB: core: remove the move buf action 2025-09-12 13:41:55 +02:00
vdpa vdpa: Fix IDR memory leak in VDUSE module exit 2025-08-01 09:11:08 -04:00
vfio VFIO updates for v6.17-rc1 v2 2025-08-07 07:32:50 +03:00
vhost vhost/net: Protect ubufs with rcu read lock in vhost_net_ubuf_put() 2025-08-26 03:38:10 -04:00
video gpio updates for v6.17-rc1 2025-08-09 08:15:43 +03:00
virt virt: sev-guest: Satisfy linear mapping requirement in get_derived_key() 2025-08-15 17:05:39 +02:00
virtio virtio_input: Improve freeze handling 2025-08-26 03:38:19 -04:00
w1 sysfs: treewide: switch back to attribute_group::bin_attrs 2025-06-17 10:44:15 +02:00
watchdog watchdog: sbsa: Adjust keepalive timeout to avoid MediaTek WS0 race condition 2025-07-28 12:07:08 +02:00
xen drivers/xen/xenbus: remove quirk for Xen 3.x 2025-08-20 15:47:43 +02:00
zorro sysfs: treewide: switch back to attribute_group::bin_attrs 2025-06-17 10:44:15 +02:00
Kconfig drm for 6.17-rc1 2025-07-30 19:26:49 -07:00
Makefile fwctl: Add basic structure for a class subsystem with a cdev 2025-03-06 15:11:30 -04:00