kernel/linux.git/drivers/gpu/drm/tegra/output.c, branch v6.12.80

drm/tegra: fix potential uninitialized variable use

2024-09-05T10:40:18+00:00

It's likely either output->drm_edid or output->ddc is non-NULL, but avoid the uninitialized variable usage anyway. Reported-by: kernel test robot Closes: https://lore.kernel.org/r/ZtXLyXxew7z6H2bD@stanley.mountain Fixes: 98365ca74cbf ("drm/tegra: convert to struct drm_edid") Cc: Thierry Reding Cc: Daniel Vetter Cc: linux-tegra@vger.kernel.org Acked-by: Thierry Reding Link: https://patchwork.freedesktop.org/patch/msgid/20240902161317.2437148-1-jani.nikula@intel.com Signed-off-by: Jani Nikula (cherry picked from commit 8e514bad271723473d31fcc496f7143ba49c43c5) Signed-off-by: Thomas Zimmermann

drm/tegra: convert to struct drm_edid

2024-08-29T11:30:14+00:00

Prefer the struct drm_edid based functions for reading the EDID and updating the connector. Acked-by: Thierry Reding Reviewed-by: Daniel Vetter Link: https://patchwork.freedesktop.org/patch/msgid/e764b50f4ad2de95e449ccb37f49c3f37b3333fc.1724348429.git.jani.nikula@intel.com Signed-off-by: Jani Nikula

drm/tegra: output: Fix missing i2c_put_adapter() in the error handling paths of tegra_output_probe()

2023-12-14T17:39:42+00:00

If an error occurs after a successful of_get_i2c_adapter_by_node() call, it should be undone by a corresponding i2c_put_adapter(). Add the missing i2c_put_adapter() call. Fixes: 9be7d864cf07 ("drm/tegra: Implement panel support") Signed-off-by: Christophe JAILLET Signed-off-by: Thierry Reding Link: https://patchwork.freedesktop.org/patch/msgid/b38604178991e1f08b2cda219103be266be2d680.1693667005.git.christophe.jaillet@wanadoo.fr

drm/tegra: include drm/drm_edid.h only where needed

2023-12-14T17:21:32+00:00

Reduce the need for rebuilds when drm_edid.h is modified by including it only where needed. v2: Fix build (kernel test robot ) Signed-off-by: Jani Nikula Signed-off-by: Thierry Reding Link: https://patchwork.freedesktop.org/patch/msgid/20231213101951.3932273-1-jani.nikula@intel.com

drm/tegra: Include

2023-04-05T15:06:07+00:00

Include to get the contained declarations. No functional changes. Signed-off-by: Thomas Zimmermann Reviewed-by: Sui Jingfeng

drm/tegra: Include

2023-04-05T15:06:07+00:00

Include to get the contained declarations. No functional changes. Signed-off-by: Thomas Zimmermann Reviewed-by: Sui Jingfeng Reviewed-by: Sui Jingfeng

drm/tegra: Switch to using devm_fwnode_gpiod_get()

2022-11-25T15:14:58+00:00

devm_gpiod_get_from_of_node() is going away and GPIO consumers should use generic device/firmware node APIs to fetch GPIOs assigned to them. Switch the driver to use devm_fwnode_gpiod_get() instead. Signed-off-by: Dmitry Torokhov Signed-off-by: Thierry Reding

drm/tegra: output: Do not put OF node twice

2020-11-13T20:38:35+00:00

The original patch for commit 3d2e7aec7013 ("drm/tegra: output: Don't leak OF node on error") contained this hunk, but it was accidentally dropped during conflict resolution. This causes use-after-free errors on devices that use an I2C controller for HDMI DDC/CI on Tegra210 and later. Fixes: 3d2e7aec7013 ("drm/tegra: output: Don't leak OF node on error") Signed-off-by: Thierry Reding

Merge tag 'drm/tegra/for-5.10-rc1' of ssh://git.freedesktop.org/git/tegra/linux into drm-next

2020-09-22T22:37:12+00:00

drm/tegra: Changes for v5.10-rc1 This is a handful of patches that add bridge support for Tegra devices and fix a couple of minor issues. Signed-off-by: Dave Airlie From: Thierry Reding Link: https://patchwork.freedesktop.org/patch/msgid/20200921121245.3953659-1-thierry.reding@gmail.com

drm/tegra: output: Support DRM bridges

2020-09-17T10:30:11+00:00

Newer Tegra device-trees will specify a video output graph which involves a bridge. This patch adds initial support for the DRM bridges to the Tegra DRM output. Acked-by: Sam Ravnborg Signed-off-by: Dmitry Osipenko Signed-off-by: Thierry Reding