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path: root/drivers/gpu/drm/bridge/imx/imx8mp-hdmi-pvi.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>
2024-04-10drm/bridge: imx8mp-hdmi-pvi: Convert to platform remove callback returning voidUwe Kleine-König
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 ignored (apart from emitting a warning) 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. Eventually after all drivers are converted, .remove_new() will be renamed to .remove(). 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: Robert Foss <rfoss@kernel.org> Signed-off-by: Robert Foss <rfoss@kernel.org> Link: https://patchwork.freedesktop.org/patch/msgid/20240304090555.716327-2-u.kleine-koenig@pengutronix.de
2024-02-07drm/bridge: imx8mp-hdmi-pvi: Fix build warningsAdam Ford
Two separate build warnings were reported. One from an uninitialized variable, and the other from returning 0 instead of NULL from a pointer. Fixes: 059c53e877ca ("drm/bridge: imx: add driver for HDMI TX Parallel Video Interface") Reported-by: Nathan Chancellor <nathan@kernel.org> Reported-by: kernel test robot <lkp@intel.com> Closes: https://lore.kernel.org/oe-kbuild-all/202402062134.a6CqAt3s-lkp@intel.com/ Signed-off-by: Adam Ford <aford173@gmail.com> Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org> Link: https://lore.kernel.org/r/20240207002305.618499-1-aford173@gmail.com Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/20240207002305.618499-1-aford173@gmail.com
2024-02-05drm/bridge: imx: add driver for HDMI TX Parallel Video InterfaceLucas Stach
This IP block is found in the HDMI subsystem of the i.MX8MP SoC. It has a full timing generator and can switch between different video sources. On the i.MX8MP however the only supported source is the LCDIF. The block just needs to be powered up and told about the polarity of the video sync signals to act in bypass mode. Signed-off-by: Lucas Stach <l.stach@pengutronix.de> Reviewed-by: Luca Ceresoli <luca.ceresoli@bootlin.com> Tested-by: Marek Vasut <marex@denx.de> Tested-by: Luca Ceresoli <luca.ceresoli@bootlin.com> Tested-by: Richard Leitner <richard.leitner@skidata.com> Tested-by: Frieder Schrempf <frieder.schrempf@kontron.de> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Luca Ceresoli <luca.ceresoli@bootlin.com> Tested-by: Luca Ceresoli <luca.ceresoli@bootlin.com> Tested-by: Fabio Estevam <festevam@gmail.com> Signed-off-by: Adam Ford <aford173@gmail.com> Link: https://lore.kernel.org/r/20240203165307.7806-9-aford173@gmail.com Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/20240203165307.7806-9-aford173@gmail.com