kernel.git/drivers/gpu/drm/msm/dp/dp_panel.c, branch linux-rolling-stable

drm/msm/dp: move link-specific parsing from dp_panel to dp_link

2025-11-14T14:59:27Z

Since max_dp_lanes and max_dp_link_rate are link-specific parameters, move their parsing from dp_panel to dp_link for better separation of concerns. Reviewed-by: Dmitry Baryshkov Signed-off-by: Xiangxu Yin Patchwork: https://patchwork.freedesktop.org/patch/675643/ Link: https://lore.kernel.org/r/20250919-add-displayport-support-for-qcs615-platform-v5-13-eae6681f4002@oss.qualcomm.com Signed-off-by: Dmitry Baryshkov

drm/msm/dp: add linux/io.h header to fix build errors

2025-07-04T13:35:41Z

Add header to pull in readl/writel and friends. This eliminates the following build errors: drivers/gpu/drm/msm/dp/dp_panel.c: In function 'msm_dp_read_link': drivers/gpu/drm/msm/dp/dp_panel.c:33:16: error: implicit declaration of function 'readl_relaxed' [-Wimplicit-function-declaration] 33 | return readl_relaxed(panel->link_base + offset); drivers/gpu/drm/msm/dp/dp_panel.c: In function 'msm_dp_write_link': drivers/gpu/drm/msm/dp/dp_panel.c:43:9: error: implicit declaration of function 'writel' [-Wimplicit-function-declaration] 43 | writel(data, panel->link_base + offset); Fixes: 603fc0fc30bf ("drm/msm/dp: drop the msm_dp_catalog module") Signed-off-by: Randy Dunlap Cc: Stephen Boyd Cc: Dmitry Baryshkov Cc: Dmitry Baryshkov Cc: Dmitry Baryshkov Cc: Rob Clark Cc: linux-arm-msm@vger.kernel.org Cc: freedreno@lists.freedesktop.org Cc: Maarten Lankhorst Cc: Maxime Ripard Cc: Thomas Zimmermann Reviewed-by: Dmitry Baryshkov Patchwork: https://patchwork.freedesktop.org/patch/659442/ Link: https://lore.kernel.org/r/20250617185611.2965223-1-rdunlap@infradead.org Signed-off-by: Dmitry Baryshkov

drm/msm/dp: drop the msm_dp_catalog module

2025-07-04T13:35:19Z

Now as the msm_dp_catalog module became nearly empty, drop it, accessing registers directly from the corresponding submodules. Reviewed-by: Stephen Boyd Tested-by: Stephen Boyd # sc7180-trogdor Signed-off-by: Dmitry Baryshkov Signed-off-by: Dmitry Baryshkov Patchwork: https://patchwork.freedesktop.org/patch/654332/ Link: https://lore.kernel.org/r/20250518-fd-dp-audio-fixup-v6-11-2f0ec3ec000d@oss.qualcomm.com

drm/msm/dp: move more AUX functions to dp_aux.c

2025-07-04T13:35:18Z

Move several misnamed functions accessing AUX bus to dp_aux.c, further cleaning up dp_catalog submodule. Reviewed-by: Stephen Boyd Tested-by: Stephen Boyd # sc7180-trogdor Signed-off-by: Dmitry Baryshkov Patchwork: https://patchwork.freedesktop.org/patch/654333/ Link: https://lore.kernel.org/r/20250518-fd-dp-audio-fixup-v6-9-2f0ec3ec000d@oss.qualcomm.com

drm/msm/dp: move/inline ctrl register functions

2025-07-04T13:35:18Z

Move CTRL-related functions to dp_ctrl.c, inlining one line wrappers during this process. The enable/disable functions have been split to the enable/disable or enter/exit pairs. The IRQ and HPD related functions are left in dp_catalog.c, pending later cleanup. Reviewed-by: Stephen Boyd Tested-by: Stephen Boyd # sc7180-trogdor Signed-off-by: Dmitry Baryshkov Patchwork: https://patchwork.freedesktop.org/patch/654328/ Link: https://lore.kernel.org/r/20250518-fd-dp-audio-fixup-v6-8-2f0ec3ec000d@oss.qualcomm.com

drm/msm/dp: move/inline panel related functions

2025-07-04T13:35:18Z

Move panel-related functions to dp_panel.c, following up the cleanup done by the rest of the submodules. Reviewed-by: Stephen Boyd Tested-by: Stephen Boyd # sc7180-trogdor Signed-off-by: Dmitry Baryshkov Patchwork: https://patchwork.freedesktop.org/patch/654321/ Link: https://lore.kernel.org/r/20250518-fd-dp-audio-fixup-v6-6-2f0ec3ec000d@oss.qualcomm.com

drm/msm/dp: Account for LTTPRs capabilities

2025-05-12T16:18:49Z

Take into account LTTPR capabilities when selecting maximum allowed link rate, number of data lines. Fixes: 72d0af4accd9 ("drm/msm/dp: Add support for LTTPR handling") Reviewed-by: Abel Vesa Reviewed-by: Abhinav Kumar Reviewed-by: Dmitry Baryshkov Signed-off-by: Aleksandrs Vinarskis Tested-by: Jessica Zhang # SA8775P Tested-by: Johan Hovold Tested-by: Rob Clark Patchwork: https://patchwork.freedesktop.org/patch/652302/ Link: https://lore.kernel.org/r/20250507230113.14270-3-alex.vinarskis@gmail.com Signed-off-by: Dmitry Baryshkov

drm/msm/dp: drop struct msm_dp_panel_in

2024-12-22T07:25:59Z

All other submodules pass arguments directly. Drop struct msm_dp_panel_in that is used to wrap dp_panel's submodule args and pass all data to msm_dp_panel_get() directly. Reviewed-by: Stephen Boyd Reviewed-by: Abhinav Kumar Tested-by: Stephen Boyd # sc7180-trogdor Signed-off-by: Dmitry Baryshkov Patchwork: https://patchwork.freedesktop.org/patch/629055/ Link: https://lore.kernel.org/r/20241216-fd-dp-audio-fixup-v4-4-f8d1961cf22f@linaro.org

drm/msm/dp: drop msm_dp_panel_dump_regs() and msm_dp_catalog_dump_regs()

2024-12-22T07:25:30Z

The msm_dp_panel_dump_regs() and msm_dp_catalog_dump_regs() are not called anywhere. If there is a necessity to dump registers, the snapshotting should be used instead. Drop these two functions. Reviewed-by: Stephen Boyd Reviewed-by: Abhinav Kumar Tested-by: Stephen Boyd # sc7180-trogdor Signed-off-by: Dmitry Baryshkov Patchwork: https://patchwork.freedesktop.org/patch/629049/ Link: https://lore.kernel.org/r/20241216-fd-dp-audio-fixup-v4-1-f8d1961cf22f@linaro.org

drm/msm/dp: prefix all symbols with msm_dp_

2024-10-31T19:08:01Z

For historical reasons a lot of symbols in the MSM DisplayPort driver used the generic dp_ prefix. Perform a mass-rename of those symbols to use msm_dp prefix. Basically this is a result of the following script: sed drivers/gpu/drm/msm/dp/* -i -e 's/\/\1/g' Yes, this also results in renaming of several struct fields in addition to renaming the structs and functions, but I think the simple solution is better than the more complex one. Reported-by: kernel test robot Closes: https://lore.kernel.org/oe-kbuild-all/202410250305.UHKDhtxy-lkp@intel.com/ Reviewed-by: Abhinav Kumar Signed-off-by: Dmitry Baryshkov Patchwork: https://patchwork.freedesktop.org/patch/622211/ Link: https://lore.kernel.org/r/20241029-msm-dp-rename-v2-1-13c5c03fad44@linaro.org