kernel/linux.git/drivers/gpu/drm/imx/dcss, branch v6.6.133

drm/imx/dcss: Use IRQF_NO_AUTOEN flag in request_irq()

2024-12-09T09:32:00+00:00

[ Upstream commit 1af01e14db7e0b45ae502d822776a58c86688763 ] disable_irq() after request_irq() still has a time gap in which interrupts can come. request_irq() with IRQF_NO_AUTOEN flag will disable IRQ auto-enable when request IRQ. Fixes: 9021c317b770 ("drm/imx: Add initial support for DCSS on iMX8MQ") Signed-off-by: Jinjie Ruan Reviewed-by: Laurentiu Palcu Link: https://patchwork.freedesktop.org/patch/msgid/20240912083020.3720233-2-ruanjinjie@huawei.com [DB: fixed the subject] Signed-off-by: Dmitry Baryshkov Signed-off-by: Sasha Levin

drm/imx/dcss: Use dev_err_probe

2023-07-28T10:35:55+00:00

This helps identifying problems with downstream pipeline devices, like HDMI/DP output. Signed-off-by: Alexander Stein Reviewed-by: Laurentiu Palcu Signed-off-by: Laurentiu Palcu Link: https://patchwork.freedesktop.org/patch/msgid/20230717092950.448823-1-alexander.stein@ew.tq-group.com

drm: Explicitly include correct DT includes

2023-07-21T07:12:43+00:00

The DT of_device.h and of_platform.h date back to the separate of_platform_bus_type before it as merged into the regular platform bus. As part of that merge prepping Arm DT support 13 years ago, they "temporarily" include each other. They also include platform_device.h and of.h. As a result, there's a pretty much random mix of those include files used throughout the tree. In order to detangle these headers and replace the implicit includes with struct declarations, users need to explicitly include the correct includes. Signed-off-by: Rob Herring Acked-by: Sam Ravnborg Reviewed-by: Steven Price Acked-by: Liviu Dudau Reviewed-by: Kieran Bingham Acked-by: Robert Foss Signed-off-by: Thierry Reding Link: https://patchwork.freedesktop.org/patch/msgid/20230714174545.4056287-1-robh@kernel.org

drm/imx/dcss: Use GEM DMA fbdev emulation

2023-03-14T16:07:48+00:00

Use the fbdev emulation that is optimized for DMA helpers. Avoids possible shadow buffering and makes the code simpler. Signed-off-by: Thomas Zimmermann Reviewed-by: Javier Martinez Canillas Link: https://patchwork.freedesktop.org/patch/msgid/20230313155138.20584-8-tzimmermann@suse.de

drm/imx/dcss: Don't call dev_set_drvdata(..., NULL);

2023-01-10T14:26:06+00:00

The driver core takes care about removing driver data, so this can be dropped from the driver. Signed-off-by: Uwe Kleine-König Reviewed-by: Laurentiu Palcu Signed-off-by: Laurentiu Palcu Link: https://patchwork.freedesktop.org/patch/msgid/20221230130025.240776-2-u.kleine-koenig@pengutronix.de

drm/imx/dcss: Drop if blocks with always false condition

2023-01-10T14:26:06+00:00

dcss_drv_platform_remove() is only called for a device after dcss_drv_platform_probe() returned 0. In that case dev_set_drvdata() was called with a non-NULL value and so dev_get_drvdata() won't return NULL. Signed-off-by: Uwe Kleine-König Reviewed-by: Laurentiu Palcu Signed-off-by: Laurentiu Palcu Link: https://patchwork.freedesktop.org/patch/msgid/20221230130025.240776-1-u.kleine-koenig@pengutronix.de

drm/imx/dcss: stop using drm_bridge_connector_en/disable_hpd()

2023-01-05T14:07:01+00:00

The functionality of drm_bridge_connector_enable_hpd() and drm_bridge_connector_disable_hpd() is provided automatically by the drm_kms_poll helpers. Stop calling these functions manually. Signed-off-by: Dmitry Baryshkov Reviewed-by: Tomi Valkeinen [narmstrong: removed now unused kms var in dcss_dev_suspend|resume()] Signed-off-by: Neil Armstrong Link: https://patchwork.freedesktop.org/patch/msgid/20221102180705.459294-5-dmitry.baryshkov@linaro.org

drm: imx/dcss: Remove #ifdef guards for PM related functions

2022-12-12T13:07:01+00:00

Use the EXPORT_GPL_DEV_PM_OPS() and pm_ptr() macros to handle the PM callbacks. These macros allow the PM functions to be automatically dropped by the compiler when CONFIG_PM is disabled, without having to use #ifdef guards. This has the advantage of always compiling these functions in, independently of any Kconfig option. Thanks to that, bugs and other regressions are subsequently easier to catch. Signed-off-by: Paul Cercueil Reviewed-by: Laurentiu Palcu Tested-by: Laurentiu Palcu Link: https://patchwork.freedesktop.org/patch/msgid/20221129191733.137897-11-paul@crapouillou.net

drm/fb-helper: Move generic fbdev emulation into separate source file

2022-11-05T16:12:04+00:00

Move the generic fbdev implementation into its own source and header file. Adapt drivers. No functional changes, but some of the internal helpers have been renamed to fit into the drm_fbdev_ naming scheme. v3: * rename drm_fbdev.{c,h} to drm_fbdev_generic.{c,h} * rebase onto vmwgfx changes * rebase onto xlnx changes * fix include statements in amdgpu Signed-off-by: Thomas Zimmermann Reviewed-by: Javier Martinez Canillas Link: https://patchwork.freedesktop.org/patch/msgid/20221103151446.2638-22-tzimmermann@suse.de

drm/imx/dcss: Don't set struct drm_driver.output_poll_changed

2022-11-05T16:05:53+00:00

Don't set struct drm_driver.output_poll_changed. It's used to restore the fbdev console. But as DCSS uses generic fbdev emulation, the console is being restored by the DRM client helpers already. See the functions drm_kms_helper_hotplug_event() and drm_kms_helper_connector_hotplug_event() in drm_probe_helper.c. v2: * fix commit description (Christian) Signed-off-by: Thomas Zimmermann Reviewed-by: Javier Martinez Canillas Link: https://patchwork.freedesktop.org/patch/msgid/20221103151446.2638-6-tzimmermann@suse.de