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2023-10-12drm/i915: Remove the module parameter 'fastboot'Arun R Murthy3-9/+0
By default fastboot is enabled on all Display 9+ platforms and disabled on older platforms. Its not necessary to retain this as a module parameter. Signed-off-by: Arun R Murthy <[email protected]> Acked-by: Jani Nikula <[email protected]> Signed-off-by: Uma Shankar <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2023-10-12drm/i915/hdcp: Move common message filling function to its own fileSuraj Kandpal4-598/+682
Create a new file intel_hdcp_gsc_message that contain functions which fill the hdcp messages we send to gsc cs this refactor will help us reuse code for Xe later on --v2 -add the missed file for proper build --v3 -use forward declarations instead of #includes [Jani] --v4 -move linux/err.h to intel_hdcp_gsc_message.c from intel_hdcp_gsc_message.h [Jani] --v5 -move linux include on top of drm includes [Uma] Signed-off-by: Suraj Kandpal <[email protected]> Reviewed-by: Uma Shankar <[email protected]> Acked-by: Jani Nikula <[email protected]> Signed-off-by: Uma Shankar <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2023-10-12drm/i915/hdcp: Move checks for gsc health statusSuraj Kandpal3-7/+16
Move checks for gsc components required for HDCP 2.2 to work into intel_hdcp_gsc.c. This will also help with XE refactor on HDCP's side. Signed-off-by: Suraj Kandpal <[email protected]> Reviewed-by: Uma Shankar <[email protected]> Signed-off-by: Uma Shankar <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2023-10-12drm/msm/dp: use correct lifetime device for devm_drm_bridge_addDmitry Baryshkov1-1/+1
The lifetime of the created drm_bridge is attached to the drm_device rather than the DP's platform_device. Use correct lifetime for devm_drm_bridge_add() call. Fixes: 61a72d5efce5 ("drm/msm/dp: switch to devm_drm_bridge_add()") Signed-off-by: Dmitry Baryshkov <[email protected]> Patchwork: https://patchwork.freedesktop.org/patch/562203/ Link: https://lore.kernel.org/r/[email protected]
2023-10-12drm/msm/hdmi: use correct lifetime device for devm_drm_bridge_addDmitry Baryshkov1-1/+1
The lifetime of the created drm_bridge is attached to the drm_device rather than the HDMI's platform_device. Use correct lifetime for devm_drm_bridge_add() call. Fixes: 719093a67c7f ("drm/msm/hdmi: switch to devm_drm_bridge_add()") Signed-off-by: Dmitry Baryshkov <[email protected]> Patchwork: https://patchwork.freedesktop.org/patch/562201/ Link: https://lore.kernel.org/r/[email protected]
2023-10-12drm/msm/dsi: use correct lifetime device for devm_drm_bridge_addDmitry Baryshkov1-1/+1
The lifetime of the created drm_bridge is attached to the drm_device rather than the DSI's platform_device. Use correct lifetime for devm_drm_bridge_add() call. Fixes: 5f403fd7d5c2 ("drm/msm/dsi: switch to devm_drm_bridge_add()") Signed-off-by: Dmitry Baryshkov <[email protected]> Patchwork: https://patchwork.freedesktop.org/patch/562200/ Link: https://lore.kernel.org/r/[email protected]
2023-10-12drm/i915/display: Use correct method to free crtc_stateSuraj Kandpal1-1/+2
Even though there is no leaking of resource here lets just use the correct method to free crtc_state Signed-off-by: Suraj Kandpal <[email protected]> Signed-off-by: Ville Syrjälä <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2023-10-12drm/i915/display: Use intel_crtc_destroy_state instead kfreeSuraj Kandpal1-2/+2
intel_encoder_current_mode() seems to leak some resource because it uses kfree instead of intel_crtc_destroy_state let us fix that. Signed-off-by: Suraj Kandpal <[email protected]> Signed-off-by: Ville Syrjälä <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2023-10-11drm/tegra: gem: Do not return NULL in tegra_bo_mmap()Thierry Reding1-2/+11
It's confusing for a function to return NULL and ERR_PTR()-encoded error codes on failure. Make sure we only ever return the latter since that's what callers already expect. Reported-by: Sui Jingfeng <[email protected]> Reviewed-by: Sui Jingfeng <[email protected]> Signed-off-by: Thierry Reding <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2023-10-11drm/tegra: Zero-initialize iosys_mapMikko Perttunen1-1/+1
UBSAN reports an invalid load for bool, as the iosys_map is read later without being initialized. Zero-initialize it to avoid this. Reported-by: Ashish Mhetre <[email protected]> Signed-off-by: Mikko Perttunen <[email protected]> Signed-off-by: Thierry Reding <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2023-10-11gpu: host1x: Correct allocated size for contextsJohnny Liu1-2/+2
Original implementation over allocates the memory size for the contexts list. The size of memory for the contexts list is based on the number of iommu groups specified in the device tree. Fixes: 8aa5bcb61612 ("gpu: host1x: Add context device management code") Signed-off-by: Johnny Liu <[email protected]> Signed-off-by: Mikko Perttunen <[email protected]> Signed-off-by: Thierry Reding <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2023-10-11gpu: host1x: Syncpoint interrupt shardingMikko Perttunen3-17/+61
Support sharded syncpoint interrupts on Tegra234+. This feature allows specifying one of eight interrupt lines for each syncpoint to lower processing latency of syncpoint threshold interrupts. Signed-off-by: Mikko Perttunen <[email protected]> Signed-off-by: Thierry Reding <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2023-10-11gpu: host1x: Enable system suspend callbacksMikko Perttunen1-1/+1
With the previous CDMA stop fix, executing runtime PM ops around system suspend now makes channel submissions work after system suspend, so do that. Signed-off-by: Mikko Perttunen <[email protected]> Signed-off-by: Thierry Reding <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2023-10-11gpu: host1x: Stop CDMA before suspendingMikko Perttunen3-0/+21
Before going into suspend, wait all CDMA to go idle and stop it. This will ensure no channel is still active while we enter suspend, and ensures the driver doesn't think that CDMA is still active when coming back from suspend (as HW state has been reset). Signed-off-by: Mikko Perttunen <[email protected]> Signed-off-by: Thierry Reding <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2023-10-11gpu: host1x: Add locking in channel allocationMikko Perttunen2-0/+10
Add locking around channel allocation to avoid race conditions. Signed-off-by: Mikko Perttunen <[email protected]> Signed-off-by: Thierry Reding <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2023-10-11drm/tegra: hub: Increase buffer size to ensure all possible values can be storedLee Jones1-1/+1
When converting from int to string, we must allow for up to 10-chars (2147483647). Fixes the following W=1 kernel build warning(s): drivers/gpu/drm/tegra/hub.c: In function ‘tegra_display_hub_probe’: drivers/gpu/drm/tegra/hub.c:1106:47: warning: ‘%u’ directive output may be truncated writing between 1 and 10 bytes into a region of size 4 [-Wformat-truncation=] drivers/gpu/drm/tegra/hub.c:1106:42: note: directive argument in the range [0, 4294967294] drivers/gpu/drm/tegra/hub.c:1106:17: note: ‘snprintf’ output between 6 and 15 bytes into a destination of size 8 Signed-off-by: Lee Jones <[email protected]> Signed-off-by: Thierry Reding <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2023-10-11drm/tegra: Remove two unused function declarationsYue Haibing1-3/+0
Commit 776dc3840367 ("drm/tegra: Move subdevice infrastructure to host1x") removed the implementation but not the declaration. Signed-off-by: Yue Haibing <[email protected]> Signed-off-by: Thierry Reding <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2023-10-11drm/tegra: Remove surplus else after returnSui Jingfeng1-9/+10
else is not generally useful after return Signed-off-by: Sui Jingfeng <[email protected]> Signed-off-by: Thierry Reding <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2023-10-11drm/i915: enable W=1 warnings by defaultJani Nikula1-14/+26
We enable a bunch more compiler warnings than the kernel defaults. However, they've drifted to become a unique set of warnings, and have increasingly fallen behind from the W=1 set. Align with the W=1 warnings from scripts/Makefile.extrawarn for clarity, by copy-pasting them with s/KBUILD_CFLAGS/subdir-ccflags-y/ to make it easier to compare in the future. Some of the -Wextra warnings do need to be disabled, just like in Makefile.extrawarn, but take care to not disable them for W=2 or W=3 builds, depending on the warning. v2: Add back some -Wextra warning disables (Nathan) Cc: Arnd Bergmann <[email protected]> Cc: Nick Desaulniers <[email protected]> Cc: Nathan Chancellor <[email protected]> Cc: Masahiro Yamada <[email protected]> Reviewed-by: Nathan Chancellor <[email protected]> Reviewed-by: Masahiro Yamada <[email protected]> [Final s/KBUILD_CFLAGS/subdir-ccflags-y/ fix while applying] Signed-off-by: Jani Nikula <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/69a812273091b6535ddc7f9346289d71bb30f43d.1697009258.git.jani.nikula@intel.com
2023-10-11drm/i915: drop -Wall and related disables from cflags as redundantJani Nikula1-5/+3
The kernel top level Makefile, and recently scripts/Makefile.extrawarn, have included -Wall, and the disables -Wno-format-security and $(call cc-disable-warning,frame-address,) for a very long time. They're redundant in our local subdir-ccflags-y and can be dropped. Cc: Arnd Bergmann <[email protected]> Cc: Nick Desaulniers <[email protected]> Cc: Nathan Chancellor <[email protected]> Cc: Masahiro Yamada <[email protected]> Reviewed-by: Nathan Chancellor <[email protected]> Acked-by: Nick Desaulniers <[email protected]> Reviewed-by: Masahiro Yamada <[email protected]> Signed-off-by: Jani Nikula <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/5ab754ddc2e342c75deb8476275984918e573beb.1697009258.git.jani.nikula@intel.com
2023-10-11drm/i915/cx0: Only clear/set the Pipe Reset bit of the PHY Lanes OwnedKhaled Almahallawy1-2/+1
Currently, with MFD/pin assignment D, the driver clears the pipe reset bit of lane 1 which is not owned by display. This causes the display to block S0iX. By not clearing this bit for lane 1 and keeping whatever default, S0ix started to work. This is already what the driver does at the end of the phy lane reset sequence (Step#8) Bspec: 65451 Fixes: 619a06dba6fa ("drm/i915/mtl: Reset only one lane in case of MFD") Cc: Mika Kahola <[email protected]> Cc: Gustavo Sousa <[email protected]> Signed-off-by: Khaled Almahallawy <[email protected]> Reviewed-by: Gustavo Sousa <[email protected]> Signed-off-by: Radhakrishna Sripada <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2023-10-11intel drm: Remove now superfluous sentinel element from ctl_table arrayJoel Granados1-1/+0
This commit comes at the tail end of a greater effort to remove the empty elements at the end of the ctl_table arrays (sentinels) which will reduce the overall build time size of the kernel and run time memory bloat by ~64 bytes per sentinel (further information Link : https://lore.kernel.org/all/ZO5Yx5JFogGi%[email protected]/) Remove sentinel from oa_table Signed-off-by: Joel Granados <[email protected]> Signed-off-by: Luis Chamberlain <[email protected]>
2023-10-11drm/etnaviv: Add helper functions to create and destroy platform deviceSui Jingfeng1-16/+37
The newly introduced functions are etnaviv_create_platform_device() and etnaviv_destroy_platform_device(). Those two function are pure function and can be shared for other use case. Currently, the benefit is that we no longer need to call of_node_put() for three different cases, we only need to call it once in the etnaviv_init() function. Signed-off-by: Sui Jingfeng <[email protected]> Signed-off-by: Lucas Stach <[email protected]>
2023-10-11drm/etnaviv: Fix coding styleSui Jingfeng1-6/+6
1) Keep the curly brace aligned. 2) No indentation by double tabs where single tab indentation is enough. Signed-off-by: Sui Jingfeng <[email protected]> Signed-off-by: Lucas Stach <[email protected]>
2023-10-11drm/etnaviv: Drop the second argument of the etnaviv_gem_new_impl()Sui Jingfeng1-4/+3
The mentioned second parameter is the 'u32 size', but it is not get used by the etnaviv_gem_new_impl() function, so drop it. No functional change. Signed-off-by: Sui Jingfeng <[email protected]> Signed-off-by: Lucas Stach <[email protected]>
2023-10-11drm/etnaviv: Replace strncpy with strscpy_padJustin Stitt1-2/+2
`strncpy` is deprecated for use on NUL-terminated destination strings [1]. We should prefer more robust and less ambiguous string interfaces. A suitable replacement is `strscpy_pad` due to the fact that it guarantees NUL-termination on the destination buffer whilst maintaining the NUL-padding behavior that strncpy provides. Link: https://www.kernel.org/doc/html/latest/process/deprecated.html#strncpy-on-nul-terminated-strings [1] Link: https://github.com/KSPP/linux/issues/90 Cc: [email protected] Cc: Bo YU <[email protected]> Signed-off-by: Justin Stitt <[email protected]> Reviewed-by: Kees Cook <[email protected]> Reviewed-by: Christian Gmeiner <[email protected]> [lst: changed subject according to suggestion from Kees] Signed-off-by: Lucas Stach <[email protected]>
2023-10-11drm/i915/gvt: move structs intel_gvt_irq_info and intel_gvt_irq_map to ↵Jani Nikula2-25/+23
interrupt.c Structs intel_gvt_irq_info and intel_gvt_irq_map are not used outside of interrupt.c. Hide them, and reduce includes. Signed-off-by: Jani Nikula <[email protected]> Reviewed-by: Zhenyu Wang <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2023-10-11drm/i915/gvt: move struct engine_mmio to mmio_context.cJani Nikula3-10/+10
struct engine_mmio is not used outside of mmio_context.c. Hide it, and reduce includes. Signed-off-by: Jani Nikula <[email protected]> Reviewed-by: Zhenyu Wang <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2023-10-11drm/i915/gvt: don't include gvt.h from intel_gvt_mmio_table.hJani Nikula1-1/+2
intel_gvt_mmio_table.c has no need to include the massive gvt.h. Simplify. Signed-off-by: Jani Nikula <[email protected]> Reviewed-by: Zhenyu Wang <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2023-10-11drm/i915/gvt: remove unused to_gvt() and reduce includesJani Nikula1-6/+1
gvt.h has no need to include i915_drv.h once the unused to_gvt() has been removed. Signed-off-by: Jani Nikula <[email protected]> Reviewed-by: Zhenyu Wang <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2023-10-11drm/i915/xe2lpd: update the scaler feature capabilityVinod Govindapillai1-0/+7
Update the number of scalers per pipe based on the display capabilities reported. v1: define the field values instead of the magic number (JaniN) Bspec: 71161 Signed-off-by: Vinod Govindapillai <[email protected]> Reviewed-by: Jouni Högander <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected] Signed-off-by: Jouni Högander <[email protected]>
2023-10-11drm/i915/xe2lpd: update the dsc feature capabilityVinod Govindapillai1-0/+8
Update the global dsc flag based on the display capabilities reported. v1: define the field values instead of the magic number (JaniN) Bspec: 71161 Signed-off-by: Vinod Govindapillai <[email protected]> Reviewed-by: Jouni Högander <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected] Signed-off-by: Jouni Högander <[email protected]>
2023-10-11drm/i915/xe2lpd: display capability register definitionsVinod Govindapillai1-0/+7
Register definitions to track the reported scalable display feature configurations Bspec: 71161 Signed-off-by: Vinod Govindapillai <[email protected]> Reviewed-by: Jouni Högander <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected] Signed-off-by: Jouni Högander <[email protected]>
2023-10-11drm/bridge_connector: implement oob_hotplug_eventDmitry Baryshkov1-3/+28
Implement the oob_hotplug_event() callback. Translate it to the HPD notification sent to the HPD bridge in the chain. Reviewed-by: Janne Grunau <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Dmitry Baryshkov <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2023-10-11drm/bridge_connector: stop filtering events in drm_bridge_connector_hpd_cb()Dmitry Baryshkov1-5/+0
In some cases the bridge drivers would like to receive hotplug events even in the case new status is equal to the old status. In the DP case this is used to deliver "attention" messages to the DP host. Stop filtering the events in the drm_bridge_connector_hpd_cb() and let drivers decide whether they would like to receive the event or not. Reviewed-by: Janne Grunau <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Dmitry Baryshkov <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2023-10-11drm: Add HPD state to drm_connector_oob_hotplug_event()Bjorn Andersson3-5/+21
In some implementations, such as the Qualcomm platforms, the display driver has no way to query the current HPD state and as such it's impossible to distinguish between disconnect and attention events. Add a parameter to drm_connector_oob_hotplug_event() to pass the HPD state. Also push the test for unchanged state in the displayport altmode driver into the i915 driver, to allow other drivers to act upon each update. Signed-off-by: Bjorn Andersson <[email protected]> Reviewed-by: Hans de Goede <[email protected]> Acked-by: Heikki Krogerus <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Dmitry Baryshkov <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2023-10-11drm/i915: Add wrapper for getting display stepChaitanya Kumar Borah3-1/+7
Add a wrapper around intel_step_name that takes in driver data as an argument. This wrapper will help maintain compatibility with the proposed xe driver. Signed-off-by: Chaitanya Kumar Borah <[email protected]> Signed-off-by: Animesh Manna <[email protected]> Reviewed-by: Uma Shankar <[email protected]> Signed-off-by: Uma Shankar <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2023-10-11Merge drm/drm-next into drm-misc-nextThomas Zimmermann963-15830/+32974
Updating drm-misc-next to the state of Linux v6.6-rc2. Signed-off-by: Thomas Zimmermann <[email protected]>
2023-10-10drm/i915: More use of GT specific print helpersJohn Harrison3-10/+9
Update a bunch of GT related print messages in non-GT files to use the GT specific helpers. Signed-off-by: John Harrison <[email protected]> Reviewed-by: Andi Shyti <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2023-10-10drm/i915/gt: More use of GT specific print helpersJohn Harrison5-43/+39
A bunch of print messages got missed in the update to using sub-system specific helpers. So update those. Signed-off-by: John Harrison <[email protected]> Reviewed-by: Andi Shyti <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2023-10-10drm/i915/display: Free crtc_state in verify_crtc_stateSuraj Kandpal1-1/+4
Free hw_crtc_state in verify_crtc_state after we are done using this or else it's just a resource leak. Fixes: 2745bdda2095 ("drm/i915: Stop clobbering old crtc state during state check") Signed-off-by: Suraj Kandpal <[email protected]> Reviewed-by: Ville Syrjälä <[email protected]> Signed-off-by: Ville Syrjälä <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2023-10-10drm/panel: ltk050h3146w: add support for Leadtek LTK050H3148W-CTA6 variantKlaus Goger1-0/+89
The LTK050H3148W-CTA6 is a 5.0" 720x1280 DSI display, whose driving controller is a Himax HX8394-F, slightly different from LTK050H3146W by its init sequence, mode details and mode flags. Cc: Quentin Schulz <[email protected]> Signed-off-by: Klaus Goger <[email protected]> Signed-off-by: Quentin Schulz <[email protected]> Reviewed-by: Paul Kocialkowski <[email protected]> Signed-off-by: Heiko Stuebner <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2023-10-10drm/panel: ltk050h3146w: add mipi_dsi_device.mode_flags to of_match_dataQuentin Schulz1-2/+6
To prepare for a new display to be supported by this driver which has a slightly different set of DSI mode related flags, let's move the currently hardcoded mode flags to the .data field of of_device_id structure. Cc: Quentin Schulz <[email protected]> Signed-off-by: Quentin Schulz <[email protected]> Reviewed-by: Paul Kocialkowski <[email protected]> Signed-off-by: Heiko Stuebner <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2023-10-10drm/msm: fix fault injection supportDmitry Baryshkov1-0/+1
Readd the header that was erroneously dropped during KMS code refactoring. Fixes: 506efcba3129 ("drm/msm: carve out KMS code from msm_drv.c") Reported-by: kernel test robot <[email protected]> Closes: https://lore.kernel.org/oe-kbuild-all/[email protected]/ Signed-off-by: Dmitry Baryshkov <[email protected]> Patchwork: https://patchwork.freedesktop.org/patch/561739/ Signed-off-by: Rob Clark <[email protected]>
2023-10-10drm/atomic-helper: relax unregistered connector checkSimon Ser1-4/+13
The driver might pull connectors which weren't submitted by user-space into the atomic state. For instance, intel_dp_mst_atomic_master_trans_check() pulls in connectors sharing the same DP-MST stream. However, if the connector is unregistered, this later fails with: [ 559.425658] i915 0000:00:02.0: [drm:drm_atomic_helper_check_modeset] [CONNECTOR:378:DP-7] is not registered Skip the unregistered connector check to allow user-space to turn off connectors one-by-one. See this wlroots issue: https://gitlab.freedesktop.org/wlroots/wlroots/-/issues/3407 Previous discussion: https://lore.kernel.org/intel-gfx/[email protected]/ Signed-off-by: Simon Ser <[email protected]> Cc: [email protected] Reviewed-by: Ville Syrjälä <[email protected]> Reviewed-by: Lyude Paul <[email protected]> Cc: Jani Nikula <[email protected]> Cc: Imre Deak <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2023-10-10x86/cpu: Encapsulate topology information in cpuinfo_x86Thomas Gleixner1-1/+1
The topology related information is randomly scattered across cpuinfo_x86. Create a new structure cpuinfo_topo and move in a first step initial_apicid and apicid into it. Aside of being better readable this is in preparation for replacing the horribly fragile CPU topology evaluation code further down the road. Consolidate APIC ID fields to u32 as that represents the hardware type. No functional change. Signed-off-by: Thomas Gleixner <[email protected]> Tested-by: Juergen Gross <[email protected]> Tested-by: Sohil Mehta <[email protected]> Tested-by: Michael Kelley <[email protected]> Tested-by: Peter Zijlstra (Intel) <[email protected]> Tested-by: Zhang Rui <[email protected]> Acked-by: Peter Zijlstra (Intel) <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2023-10-10drm/panel: boe-tv101wum-nl6: Completely pull GPW to VGL before TP termRuihai Zhou1-3/+1
The sta_himax83102 panel sometimes shows abnormally flickering horizontal lines. The front gate output will precharge the X point of the next pole circuit before TP(TouchPanel Enable) term starts, and wait until the end of the TP term to resume the CLK. For this reason, the X point must be maintained during the TP term. In abnormal case, we measured a slight leakage at point X. This because during the TP term, the GPW does not fully pull the VGL low, causing the TFT to not be closed tightly. To fix this, we completely pull GPW to VGL before entering the TP term. This will ensure that the TFT is closed tightly and prevent the abnormal display. Fixes: 1bc2ef065f13 ("drm/panel: Support for Starry-himax83102-j02 TDDI MIPI-DSI panel") Signed-off-by: Ruihai Zhou <[email protected]> Reviewed-by: Neil Armstrong <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Neil Armstrong <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2023-10-10drm/panel/panel-tpo-tpg110: fix a possible null pointer dereferenceMa Ke1-0/+2
In tpg110_get_modes(), the return value of drm_mode_duplicate() is assigned to mode, which will lead to a NULL pointer dereference on failure of drm_mode_duplicate(). Add a check to avoid npd. Signed-off-by: Ma Ke <[email protected]> Reviewed-by: Neil Armstrong <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Neil Armstrong <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2023-10-10drm/panel: fix a possible null pointer dereferenceMa Ke1-0/+2
In versatile_panel_get_modes(), the return value of drm_mode_duplicate() is assigned to mode, which will lead to a NULL pointer dereference on failure of drm_mode_duplicate(). Add a check to avoid npd. Signed-off-by: Ma Ke <[email protected]> Reviewed-by: Neil Armstrong <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Neil Armstrong <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2023-10-10drm/i915: Fix VLV color state readoutVille Syrjälä1-0/+1
VLV was missed when the color.get_config() hook was added. Remedy that. Not really sure what the final plan here was since a bunch of color related readout was left in intel_display.c anyway, but that's for anothr day to figure out... Cc: Jani Nikula <[email protected]> Fixes: 9af09dfcdfa1 ("drm/i915/color: move pre-SKL gamma and CSC enable read to intel_color") Signed-off-by: Ville Syrjälä <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected] Reviewed-by: Jani Nikula <[email protected]>
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