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7ff346ee01
linux/drivers
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José Roberto de Souza 7ff346ee01 drm/i915/display: Fix HPD short pulse handling for eDP 
[ Upstream commit 3a84fd1ed5 ]

Commit 13ea6db2cf ("drm/i915/edp: Ignore short pulse when panel
powered off") completely broke short pulse handling for eDP as it is
usually generated by sink when it is displaying image and there is
some error or status that source needs to handle.

When power panel is enabled, this state is enough to power aux
transactions and VDD override is disabled, so intel_pps_have_power()
is always returning false causing short pulses to be ignored.

So here better naming this function that intends to check if aux
lines are powered to avoid the endless cycle mentioned in the commit
being fixed and fixing the check for what it is intended.

v2:
- renamed to intel_pps_have_panel_power_or_vdd()
- fixed indentation

Fixes: 13ea6db2cf ("drm/i915/edp: Ignore short pulse when panel powered off")
Cc: Anshuman Gupta <anshuman.gupta@intel.com>
Cc: Jani Nikula <jani.nikula@intel.com>
Cc: Uma Shankar <uma.shankar@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220311185149.110527-1-jose.souza@intel.com
(cherry picked from commit 8f0c1c0949)
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-04-08 14:23:40 +02:00
..
accessibility speakup-dectlk: Restore pitch setting 2022-02-16 12:56:37 +01:00
acpi ACPI: APEI: fix return value of __setup handlers 2022-04-08 14:23:09 +02:00
amba ARM: 9120/1: Revert "amba: make use of -1 IRQs warn" 2021-11-06 14:13:31 +01:00
android binder: avoid potential data leakage when copying txn 2022-01-27 11:04:09 +01:00
ata ata: pata_hpt37x: fix PCI clock detection 2022-03-08 19:12:33 +01:00
atm atm: eni: Add check for dma_map_single 2022-03-23 09:16:41 +01:00
auxdisplay auxdisplay: lcd2s: Use proper API to free the instance of charlcd object 2022-03-08 19:12:47 +01:00
base drivers/base/memory: add memory block to memory group after registration succeeded 2022-04-08 14:23:12 +02:00
bcma
block drbd: fix potential silent data corruption 2022-04-08 14:22:57 +02:00
bluetooth Bluetooth: hci_serdev: call init_rwsem() before p->open() 2022-04-08 14:23:25 +02:00
bus mips: cdmm: Fix refcount leak in mips_cdmm_phys_base 2022-04-08 14:23:39 +02:00
cdrom
char hwrng: nomadik - Change clk_disable to clk_disable_unprepare 2022-04-08 14:23:09 +02:00
clk clk: uniphier: Fix fixed-rate initialization 2022-04-08 14:22:50 +02:00
clocksource clocksource: acpi_pm: fix return value of __setup handler 2022-04-08 14:23:09 +02:00
comedi comedi: vmk80xx: fix bulk and interrupt message timeouts 2021-11-12 15:05:51 +01:00
connector
counter
cpufreq cpufreq: Fix initialization of min and max frequency QoS requests 2022-01-27 11:04:44 +01:00
cpuidle cpuidle: Fix kobject memory leaks in error paths 2021-11-18 19:16:29 +01:00
crypto crypto: ccree - Fix use after free in cc_cipher_exit() 2022-04-08 14:23:09 +02:00
cxl cxl/regs: Fix size of CXL Capability Header Register 2022-04-08 14:23:30 +02:00
dax dax: make sure inodes are flushed before destroy cache 2022-04-08 14:23:31 +02:00
dca
devfreq devfreq: use HZ macros 2021-09-08 11:50:26 -07:00
dio
dma dmaengine: shdma: Fix runtime PM imbalance on error 2022-03-08 19:12:31 +01:00
dma-buf udmabuf: validate ubuf->pagecount 2022-04-08 14:23:24 +02:00
edac EDAC: Fix calculation of returned address and next offset in edac_align_ptr() 2022-02-23 12:03:20 +01:00
eisa
extcon
firewire FireWire (IEEE 1394) subsystem updates: 2021-09-11 09:47:33 -07:00
firmware firmware: qcom: scm: Remove reassignment to desc following initializer 2022-04-08 14:23:15 +02:00
fpga fpga: ice40-spi: Add SPI device ID table 2021-09-27 14:00:41 -07:00
fsi
gnss
gpio Revert "gpio: Revert regression in sysfs-gpio (gpiolib.c)" 2022-04-08 14:22:47 +02:00
gpu drm/i915/display: Fix HPD short pulse handling for eDP 2022-04-08 14:23:40 +02:00
greybus greybus: svc: fix an error handling bug in gb_svc_hello() 2022-04-08 14:22:50 +02:00
hid HID: i2c-hid: fix GET/SET_REPORT for unnumbered reports 2022-04-08 14:23:31 +02:00
hsi HSI: core: Fix return freed object in hsi_new_client 2022-01-27 11:04:31 +01:00
hv hv_balloon: rate-limit "Unhandled message" warning 2022-04-08 14:23:37 +02:00
hwmon hwmon: (pmbus) Add Vin unit off handling 2022-04-08 14:23:09 +02:00
hwspinlock
hwtracing coresight: syscfg: Fix memleak on registration failure in cscfg_create_device 2022-04-08 14:22:50 +02:00
i2c i2c: xiic: Make bus names unique 2022-04-08 14:23:37 +02:00
i3c i3c: master: dw: check return of dw_i3c_master_get_free_pos() 2022-03-08 19:12:37 +01:00
idle
iio iio: inkern: make a best effort on offset calculation 2022-04-08 14:22:50 +02:00
infiniband RDMA/mlx5: Fix memory leak in error flow for subscribe event routine 2022-04-08 14:23:39 +02:00
input Revert "Input: clear BTN_RIGHT/MIDDLE on buttonpads" 2022-04-08 14:22:55 +02:00
interconnect interconnect: qcom: rpm: Prevent integer overflow in rate 2022-01-27 11:05:00 +01:00
iommu iommu/ipmmu-vmsa: Check for error num after setting mask 2022-04-08 14:23:31 +02:00
ipack ipack: ipoctal: fix module reference leak 2021-09-27 17:38:49 +02:00
irqchip irqchip/sifive-plic: Add missing thead,c900-plic match string 2022-02-23 12:03:17 +01:00
isdn isdn: hfcpci: check the return value of dma_set_mask() in setup_hw() 2022-03-16 14:23:36 +01:00
leds leds: lp55xx: initialise output direction from dts 2022-01-27 11:04:21 +01:00
macintosh memblock: introduce saner 'memblock_free_ptr()' interface 2021-09-14 13:23:22 -07:00
mailbox mailbox: tegra-hsp: Flush whole channel 2022-04-08 14:22:59 +02:00
mcb mcb: fix error handling in mcb_alloc_bus() 2021-09-14 11:22:26 +02:00
md dm crypt: fix get_key_size compiler warning if !CONFIG_KEYS 2022-04-08 14:23:33 +02:00
media ivtv: fix incorrect device_caps for ivtvfb 2022-04-08 14:23:21 +02:00
memory memory: emif: check the pointer temp in get_device_details() 2022-04-08 14:23:20 +02:00
memstick memstick: jmb38x_ms: use appropriate free function in jmb38x_ms_alloc_host() 2021-11-18 19:16:32 +01:00
message
mfd mfd: mc13xxx: Add check for mc13xxx_irq_request 2022-04-08 14:23:38 +02:00
misc mei: avoid iterator usage outside of list_for_each_entry 2022-04-08 14:22:49 +02:00
mmc mmc: davinci_mmc: Handle error for clk_enable 2022-04-08 14:23:22 +02:00
most most: fix control-message timeouts 2021-11-18 19:16:08 +01:00
mtd mtd: rawnand: atmel: fix refcount issue in atmel_nand_controller_init 2022-04-08 14:23:39 +02:00
mux
net ath10k: Fix error handling in ath10k_setup_msa_resources 2022-04-08 14:23:39 +02:00
nfc nfc: st21nfca: Fix potential buffer overflows in EVT_TRANSACTION 2022-03-28 09:58:42 +02:00
ntb ntb: intel: fix port config status offset for SPR 2022-03-08 19:12:44 +01:00
nubus
nvdimm nvdimm/pmem: cleanup the disk if pmem_release_disk() is yet assigned 2021-11-18 19:17:07 +01:00
nvme nvme: fix the check for duplicate unique identifiers 2022-04-08 14:23:07 +02:00
nvmem nvmem: core: Fix a conflict between MTD and NVMEM on wp-gpios property 2022-03-02 11:48:06 +01:00
of of: net: move of_net under net/ 2022-03-08 19:12:41 +01:00
opp opp: Fix return in _opp_add_static_v2() 2021-11-18 19:17:00 +01:00
parisc parisc: Fix sglist access in ccio-dma.c 2022-02-23 12:03:03 +01:00
parport parisc architecture updates for kernel 5.15: 2021-09-02 13:16:00 -07:00
pci PCI: Reduce warnings on possible RW1C corruption 2022-04-08 14:23:37 +02:00
pcmcia pcmcia: fix setting of kthread task states 2022-01-27 11:04:02 +01:00
perf perf/arm-cmn: Fix CPU hotplug unregistration 2022-01-27 11:03:36 +01:00
phy phy: phy-mtk-tphy: Fix duplicated argument in phy-mtk-tphy 2022-02-23 12:03:17 +01:00
pinctrl pinctrl: samsung: Remove EINT handler for Exynos850 ALIVE and CMGP gpios 2022-04-08 14:23:12 +02:00
platform platform/x86: huawei-wmi: check the return value of device_create_file() 2022-04-08 14:23:38 +02:00
pnp
power power: ab8500_chargalg: Use CLOCK_MONOTONIC 2022-04-08 14:23:39 +02:00
powercap
pps
ps3
ptp ptp: unregister virtual clocks when unregistering physical clock. 2022-04-08 14:23:28 +02:00
pwm pwm: mtk-disp: Implement atomic API .get_state() 2021-09-02 22:27:46 +02:00
rapidio
ras
regulator regulator: qcom_smd: fix for_each_child.cocci warnings 2022-04-08 14:23:04 +02:00
remoteproc remoteproc: Fix count check in rproc_coredump_write() 2022-04-08 14:22:52 +02:00
reset reset: renesas: Fix Runtime PM usage 2022-01-11 15:35:16 +01:00
rpmsg rpmsg: char: Fix race between the release of rpmsg_eptdev and cdev 2022-02-01 17:27:07 +01:00
rtc rtc: pl031: fix rtc features null pointer dereference 2022-04-08 14:22:56 +02:00
s390 block: drop unused includes in <linux/genhd.h> 2022-03-16 14:23:46 +01:00
sbus
scsi scsi: mpt3sas: Fix incorrect 4GB boundary check 2022-04-08 14:23:38 +02:00
sh maple: fix wrong return value of maple_bus_init(). 2021-11-25 09:48:31 +01:00
siox
slimbus
soc soc: mediatek: pm-domains: Add wakeup capacity support in power domain 2022-04-08 14:23:18 +02:00
soundwire soundwire: bus: stop dereferencing invalid slave pointer 2021-11-18 19:16:54 +01:00
spi spi: spi-zynqmp-gqspi: Handle error for dma_set_mask 2022-04-08 14:23:07 +02:00
spmi
ssb
staging media: cedrus: h264: Fix neighbour info buffer size 2022-04-08 14:23:17 +02:00
target scsi: target: iscsi: Make sure the np under each tpg is unique 2022-02-16 12:56:12 +01:00
tc
tee optee: use driver internal tee_context for some rpc 2022-03-02 11:47:51 +01:00
thermal thermal: int340x: Check for NULL after calling kmemdup() 2022-04-08 14:23:05 +02:00
thunderbolt thunderbolt: Runtime PM activate both ends of the device link 2022-01-27 11:04:36 +01:00
tty serial: stm32: prevent TDR register overwrite when sending x_char 2022-03-08 19:12:32 +01:00
uio
usb USB: storage: ums-realtek: fix error code in rts51x_read_mem() 2022-04-08 14:23:40 +02:00
vdpa vdpa/mlx5: should verify CTRL_VQ feature exists for MQ 2022-04-08 14:22:46 +02:00
vfio vfio/pci: wake-up devices around reset functions 2022-04-08 14:23:33 +02:00
vhost vsock: each transport cycles only on its own sockets 2022-03-23 09:16:41 +01:00
video video: fbdev: omapfb: Add missing of_node_put() in dvic_probe_of 2022-04-08 14:23:21 +02:00
virt nitro_enclaves: Use get_user_pages_unlocked() call to handle mmap assert 2022-01-05 12:42:39 +01:00
virtio virtio: acknowledge all features before access 2022-03-16 14:23:43 +01:00
visorbus
vlynq
vme
w1 w1: Misuse of get_user()/put_user() reported by sparse 2022-01-27 11:04:59 +01:00
watchdog ar7: fix kernel builds for compiler test 2021-11-18 19:17:03 +01:00
xen xen/gnttab: fix gnttab_end_foreign_access() without page specified 2022-03-11 12:22:37 +01:00
zorro
Kconfig firmware: include drivers/firmware/Kconfig unconditionally 2021-10-07 16:51:26 +02:00
Makefile virtio: always enter drivers/virtio/ 2021-12-22 09:32:39 +01:00