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path: root/drivers/gpu/drm/bridge/imx/imx8qxp-pixel-combiner.c
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2024-12-01Get rid of 'remove_new' relic from platform driver structLinus Torvalds
The continual trickle of small conversion patches is grating on me, and is really not helping. Just get rid of the 'remove_new' member function, which is just an alias for the plain 'remove', and had a comment to that effect: /* * .remove_new() is a relic from a prototype conversion of .remove(). * New drivers are supposed to implement .remove(). Once all drivers are * converted to not use .remove_new any more, it will be dropped. */ This was just a tree-wide 'sed' script that replaced '.remove_new' with '.remove', with some care taken to turn a subsequent tab into two tabs to make things line up. I did do some minimal manual whitespace adjustment for places that used spaces to line things up. Then I just removed the old (sic) .remove_new member function, and this is the end result. No more unnecessary conversion noise. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2024-09-13drm/bridge: imx8qxp-pixel-combiner: Switch to RUNTIME_PM_OPS()Fabio Estevam
Replace SET_RUNTIME_PM_OPS with its modern RUNTIME_PM_OPS() alternative. The combined usage of pm_ptr() and RUNTIME_PM_OPS() allows the compiler to evaluate if the runtime suspend/resume() functions are used at build time or are simply dead code. This allows removing the __maybe_unused notation from the runtime suspend/resume() functions. Signed-off-by: Fabio Estevam <festevam@denx.de> Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org> Link: https://lore.kernel.org/r/20240626230704.708234-3-festevam@gmail.com Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/20240626230704.708234-3-festevam@gmail.com
2024-05-13drm/bridge: imx: Remove redundant checks on existence of bridge->encoderSui Jingfeng
The checks on the existence of bridge->encoder in the implementation of drm_bridge_funcs::attach() is not necessary, as it has already been checked in the drm_bridge_attach() function call by previous bridge or KMS driver. The drm_bridge_attach() will quit with a negative error code returned if it fails for some reasons, hence, it is guaranteed that the .encoder member of the drm_bridge instance is not NULL when various i.MX specific bridge attach functions are called. Remove the redundant checking codes "if (!bridge->encoder) { ... }". Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Sui Jingfeng <sui.jingfeng@linux.dev> Signed-off-by: Robert Foss <rfoss@kernel.org> Link: https://patchwork.freedesktop.org/patch/msgid/20240513153109.46786-12-sui.jingfeng@linux.dev
2023-03-20drm/bridge: imx8qxp-pixel-combiner: Convert to platform remove callback ↵Uwe Kleine-König
returning void The .remove() callback for a platform driver returns an int which makes many driver authors wrongly assume it's possible to do error handling by returning an error code. However the value returned is (mostly) ignored and this typically results in resource leaks. To improve here there is a quest to make the remove callback return void. In the first step of this quest all drivers are converted to .remove_new() which already returns void. Trivially convert this driver from always returning zero in the remove callback to the void returning variant. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/20230318190804.234610-9-u.kleine-koenig@pengutronix.de
2022-07-05drm: Remove linux/i2c.h from drm_crtc.hVille Syrjälä
drm_crtc.h has no need for linux/i2c.h, so don't include it. Avoids useless rebuilds of the entire universe when touching linux/i2c.h. Quite a few placs do currently depend on linux/i2c.h without actually including it directly. All of those need to be fixed up. v2: imx and mcde need linux/io.h for readl()/etc. Acked-by: Sam Ravnborg <sam@ravnborg.org> Acked-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220630195114.17407-5-ville.syrjala@linux.intel.com
2022-07-05drm: Remove linux/media-bus-format.h from drm_crtc.hVille Syrjälä
drm_crtc.h has no need for linux/media-bus-format.h, so don't include it. Avoids useless rebuilds of the entire universe when touching linux/media-bus-format.h. Quite a few placs do currently depend on linux/media-bus-format.h without actually including it directly. All of those need to be fixed up. v2: Deal with ingenic as well v3: Fix up mxsfb and remaining parts of imx Acked-by: Sam Ravnborg <sam@ravnborg.org> Acked-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220630195114.17407-4-ville.syrjala@linux.intel.com
2022-06-20drm/bridge: imx: Add i.MX8qm/qxp pixel combiner supportLiu Ying
This patch adds a drm bridge driver for i.MX8qm/qxp pixel combiner. The pixel combiner takes two output streams from a single display controller and manipulates the two streams to support a number of modes(bypass, pixel combine, YUV444 to YUV422, split_RGB) configured as either one screen, two screens, or virtual screens. The pixel combiner is also responsible for generating some of the control signals for the pixel link output channel. For now, the driver only supports the bypass mode. Reviewed-by: Robert Foss <robert.foss@linaro.org> Tested-by: Marcel Ziswiler <marcel.ziswiler@toradex.com> # Colibri iMX8X, LT170410-2WHC, LP156WF1 Signed-off-by: Liu Ying <victor.liu@nxp.com> Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Robert Foss <robert.foss@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/20220611141421.718743-5-victor.liu@nxp.com