kernel.git/drivers/gpu/drm/tegra/hdmi.c, branch linux-6.1.y

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

2026-02-19T15:25:17Z

[ 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: hdmi: Fix some error handling paths in tegra_hdmi_probe()

2024-03-26T22:20:44Z

[ Upstream commit 643ae131b8598fb2940c92c7d23fe62823a119c8 ] If an error occurs after calling tegra_output_probe(), tegra_output_remove() should be called as already done in the remove function. Fixes: 59d29c0ec93f ("drm/tegra: Allocate resources at probe time") Signed-off-by: Christophe JAILLET Signed-off-by: Thierry Reding Link: https://patchwork.freedesktop.org/patch/msgid/9b7c564eb71977678b20abd73ee52001a51cf327.1693667005.git.christophe.jaillet@wanadoo.fr Signed-off-by: Sasha Levin

drm/tegra: hdmi: Convert to devm_platform_ioremap_resource()

2024-03-26T22:20:43Z

[ Upstream commit faae5646c13f4697fd2ba29b10e38f9be5aa890a ] Use devm_platform_ioremap_resource() to simplify code. Signed-off-by: Yangtao Li Signed-off-by: Thierry Reding Link: https://patchwork.freedesktop.org/patch/msgid/20230710032355.72914-5-frank.li@vivo.com Stable-dep-of: 643ae131b859 ("drm/tegra: hdmi: Fix some error handling paths in tegra_hdmi_probe()") Signed-off-by: Sasha Levin

drm/tegra: Use dev_err_probe()

2022-02-24T16:03:08Z

Replace dev_printk() with a generic dev_err_probe() helper which silences noisy error messages about deferred probe and makes easy to debug failing deferred probe by printing notification about the failure to KMSG in the end of kernel booting process and by adding failing device and the reason of deferred probe to devices_deferred of debugfs. This was proven to be useful in the case of eDP driver regression by immediately showing why display driver was failing when user asked for help, otherwise it would've been much more difficult to debug such problems on a third party device that doesn't have developer setup. Signed-off-by: Dmitry Osipenko Signed-off-by: Thierry Reding

drm/tegra: hdmi: Add OPP support

2021-12-16T13:07:07Z

The HDMI on Tegra belongs to the core power domain and we're going to enable GENPD support for the core domain. Now HDMI driver must use OPP API for driving the controller's clock rate because OPP API takes care of reconfiguring the domain's performance state based on HDMI clock rate. Add OPP support to the HDMI driver. Reviewed-by: Ulf Hansson Signed-off-by: Dmitry Osipenko Signed-off-by: Thierry Reding

drm/tegra: hdmi: Register audio CODEC on Tegra20

2021-12-16T13:07:07Z

Tegra20 SoC supports only S/PDIF source for HDMI audio. Register ASoC HDMI S/PDIF CODEC for Tegra20, it will be linked with the S/PDIF CPU DAI. Signed-off-by: Dmitry Osipenko Signed-off-by: Thierry Reding

drm/tegra: hdmi: Unwind tegra_hdmi_init() errors

2021-12-16T13:07:07Z

Add missing error unwinding to tegra_hdmi_init(), for consistency. Signed-off-by: Dmitry Osipenko Signed-off-by: Thierry Reding

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

2021-01-15T16:24:51Z

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

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