kernel/linux.git/drivers/gpu/drm/imx/dcss, branch v6.5.12

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

Merge tag 'drm-misc-next-2022-08-20-1' of git://anongit.freedesktop.org/drm/drm-misc into drm-next

2022-09-06T08:56:04+00:00

drm-misc-next for v6.1: UAPI Changes: Cross-subsystem Changes: - DMA-buf: documentation updates. - Assorted small fixes to vga16fb - Fix fbdev drivers to use the aperture helpers. - Make removal of conflicting drivers work correctly without fbdev enabled. Core Changes: - bridge, scheduler, dp-mst: Assorted small fixes. - Add more format helpers to fourcc, and use it to replace the cpp usage. - Add DRM_FORMAT_Cxx, DRM_FORMAT_Rxx (single channel), and DRM_FORMAT_Dxx ("darkness", inverted single channel) - Add packed AYUV8888 and XYUV8888 formats. - Assorted documentation updates. - Rename ttm_bo_init to ttm_bo_init_validate. - Allow TTM bo's to exist without backing store. - Convert drm selftests to kunit. - Add managed init functions for (panel) bridge, crtc, encoder and connector. - Fix endianness handling in various format conversion helpers. - Make tests pass on big-endian platforms, and add test for rgb888 -> rgb565 - Move DRM_PLANE_HELPER_NO_SCALING to atomic helpers and rename, so drm_plane_helper is no longer needed in most drivers. - Use idr_init_base instead of idr_init. - Rename FB and GEM CMA helpers to DMA helpers. - Rework XRGB8888 related conversion helpers, and add drm_fb_blit() that takes a iosys_map. Make drm_fb_memcpy take an iosys_map too. - Move edid luminance calculation to core, and use it in i915. Driver Changes: - bridge/{adv7511,ti-sn65dsi86,parade-ps8640}, panel/{simple,nt35510,tc358767}, nouveau, sun4i, mipi-dsi, mgag200, bochs, arm, komeda, vmwgfx, pl111: Assorted small fixes and doc updates. - vc4: Rework hdmi power up, and depend on PM. - panel/simple: Add Samsung LTL101AL01. - ingenic: Add JZ4760(B) support, avoid a modeset when sharpness property is unchanged, and use the new PM ops. - Revert some amdgpu commits that cause garbaged graphics when starting X, and reapply them with the real problem fixed. - Completely rework vc4 init to use managed helpers. - Rename via_drv to via_dri1, and move all stuff there only used by the dri1 implementation in preperation for atomic modeset. - Use regmap bulk write in ssd130x. - Power sequence and clock updates to it6505. - Split panel-sitrox-st7701 init sequence and rework mode programming code. - virtio: Improve error and edge conditions handling, and convert to use managed helpers. - Add Samsung LTL101AL01, B120XAN01.0, R140NWF5 RH, DMT028VGHMCMI-1A T, panels. - Add generic fbdev support to komeda. - Split mgag200 modeset handling to make it more model-specific. - Convert simpledrm to use atomic helpers. - Improve udl suspend/disconnect handling. Signed-off-by: Daniel Vetter From: Maarten Lankhorst Link: https://patchwork.freedesktop.org/patch/msgid/f0c71766-61e8-19b7-763a-5fbcdefc633d@linux.intel.com

Merge tag 'drm-misc-fixes-2022-08-16' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes

2022-08-17T22:51:42+00:00

One patch for imx/dcss to get rid of a warning message, one off-by-one fix and GA103 support for nouveau, a refcounting fix for meson, a NULL pointer dereference fix for ttm, a error check fix for lvds-codec, a dt-binding schema fix and an underflow fix for sun4i Signed-off-by: Dave Airlie From: Maxime Ripard Link: https://patchwork.freedesktop.org/patch/msgid/20220816094401.wtadc7ddr6lzq6aj@houat

drm/imx/dcss: get rid of HPD warning message

2022-08-04T10:21:07+00:00

When DCSS + MIPI_DSI is used, and the last bridge in the chain supports HPD, we can see a "Hot plug detection already enabled" warning stack trace dump that's thrown when DCSS is initialized. The problem appeared when HPD was enabled by default in the bridge_connector initialization, which made the drm_bridge_connector_enable_hpd() call, in DCSS init path, redundant. So, let's remove that call. Fixes: 09077bc311658 ("drm/bridge_connector: enable HPD by default if supported") Signed-off-by: Laurentiu Palcu Reviewed-by: Laurent Pinchart Link: https://patchwork.freedesktop.org/patch/msgid/20220721120912.6639-1-laurentiu.palcu@oss.nxp.com