kernel.git/drivers/gpu/drm/tegra/hdmi.c, branch linux-5.10.y

drm/tegra: hdmi: sor: Fix error: variable ‘j’ set but not used

2026-02-19T15:20:26Z

[ Upstream commit 1beee8d0c263b3e239c8d6616e4f8bb700bed658 ] The variable j is set, however never used in or outside the loop, thus resulting in dead code. Building with GCC 16 results in a build error due to -Werror=unused-but-set-variable= enabled by default. This patch clean up the dead code and fixes the build error. Example build log: drivers/gpu/drm/tegra/sor.c:1867:19: error: variable ‘j’ set but not used [-Werror=unused-but-set-variable=] 1867 | size_t i, j; | ^ Signed-off-by: Brahmajit Das Signed-off-by: Thierry Reding Link: https://lore.kernel.org/r/20250901212020.3757519-1-listout@listout.xyz Signed-off-by: Sasha Levin

drm/tegra: Fix reference leak when pm_runtime_get_sync() fails

2021-03-04T10:37:42Z

[ Upstream commit dcdfe2712b68f1e9dbf4f1a96ad59b80e5cc0ef7 ] The PM reference count is not expected to be incremented on return in these Tegra functions. However, pm_runtime_get_sync() will increment the PM reference count even on failure. Forgetting to put the reference again will result in a leak. Replace it with pm_runtime_resume_and_get() to keep the usage counter balanced. Fixes: fd67e9c6ed5a ("drm/tegra: Do not implement runtime PM") Reported-by: Hulk Robot Signed-off-by: Qinglang Miao Signed-off-by: Thierry Reding Signed-off-by: Sasha Levin

drm/tegra: Clean up GPIO includes

2020-04-17T15:16:22Z

The Tegra DRM drivers includes the legacy GPIO headers and but what it really uses is since only gpio_desc structs are ever referenced. Include the right header on the top level tegra/drm.h file and drop all the surplus includes. Signed-off-by: Linus Walleij Acked-by: Daniel Vetter Link: https://patchwork.freedesktop.org/patch/msgid/20200415122427.111769-1-linus.walleij@linaro.org

drm/tegra: Use simple encoder

2020-04-02T12:16:45Z

The tegra driver uses empty implementations for its encoders. Replace the code with the generic simple encoder. Signed-off-by: Thomas Zimmermann Reviewed-by: Laurent Pinchart Acked-by: Daniel Vetter Link: https://patchwork.freedesktop.org/patch/msgid/20200305155950.2705-16-tzimmermann@suse.de

Merge remote-tracking branch 'drm/drm-next' into drm-misc-next

2020-03-26T14:11:04Z

Requested for getting some i915 fixes back into drm-misc-next by danvet. Signed-off-by: Maarten Lankhorst

drm/tegra: remove checks for debugfs functions return value

2020-03-18T15:20:28Z

Since 987d65d01356 (drm: debugfs: make drm_debugfs_create_files() never fail) there is no need to check the return value of drm_debugfs_create_files(). Therefore, remove the return checks and error handling of the drm_debugfs_create_files() function from various debugfs init functions in drm/tegra and have them return 0 directly. v2: remove conversion of tegra_debugfs_init() to void to avoid build breakage. References: https://lists.freedesktop.org/archives/dri-devel/2020-February/257183.html Signed-off-by: Wambui Karuga Acked-by: Thierry Reding Reviewed-by: Greg Kroah-Hartman Signed-off-by: Daniel Vetter Link: https://patchwork.freedesktop.org/patch/msgid/20200310133121.27913-2-wambui.karugax@gmail.com

drm/tegra: hdmi: Silence deferred-probe error

2020-03-13T17:03:06Z

Driver fails to probe with -EPROBE_DEFER, which produces a bit noisy error message in KMSG during kernel's boot up. This happens because voltage regulators tend to be probed later than the DRM driver. Signed-off-by: Dmitry Osipenko Signed-off-by: Thierry Reding

Merge tag 'drm/tegra/for-5.6-rc1' of git://anongit.freedesktop.org/tegra/linux into drm-next

2020-01-15T06:21:28Z

drm/tegra: Changes for v5.6-rc1 This contains a small set of mostly fixes and some minor improvements. Signed-off-by: Dave Airlie From: Thierry Reding Link: https://patchwork.freedesktop.org/patch/msgid/20200111004835.2412858-1-thierry.reding@gmail.com

drm/tegra: Do not implement runtime PM

2020-01-10T15:37:43Z

The Tegra DRM driver heavily relies on the implementations for runtime suspend/resume to be called at specific times. Unfortunately, there are some cases where that doesn't work. One example is if the user disables runtime PM for a given subdevice. Another example is that the PM core acquires a reference to runtime PM during system sleep, effectively preventing devices from going into low power modes. This is intentional to avoid nasty race conditions, but it also causes system sleep to not function properly on all Tegra systems. Fix this by not implementing runtime PM at all. Instead, a minimal, reference-counted suspend/resume infrastructure is added to the host1x bus. This has the benefit that it can be used regardless of the system power state (or any transitions we might be in), or whether or not the user allows runtime PM. Atomic modesetting guarantees that these functions will end up being called at the right point in time, so the pitfalls for the more generic runtime PM do not apply here. Signed-off-by: Thierry Reding

gpu: host1x: Rename "parent" to "host"

2020-01-10T15:37:38Z

Rename the host1x clients' parent to "host" because that more closely describes what it is. The parent can be confused with the parent device in terms of the device hierarchy. Subsequent patches will add a new member that refers to the parent in that hierarchy. Signed-off-by: Thierry Reding