kernel/linux.git/drivers/gpu/drm/tegra/drm.h, branch linux-7.0.y

drm/tegra: Add NVJPG driver

2025-11-14T18:41:55+00:00

Add support for booting and using NVJPG on Tegra210 to the Host1x and TegraDRM drivers. This driver only supports the new TegraDRM uAPI. Acked-by: Mikko Perttunen Signed-off-by: Diogo Ivo Signed-off-by: Thierry Reding Link: https://patch.msgid.link/20250630-diogo-nvjpg-v3-1-a553c7e91354@tecnico.ulisboa.pt

drm/tegra: Pass along the format info from .fb_create() to drm_helper_mode_fill_fb_struct()

2025-07-16T17:11:34+00:00

Plumb the format info from .fb_create() all the way to drm_helper_mode_fill_fb_struct() to avoid the redundant lookup. For the fbdev case a manual drm_get_format_info() lookup is needed. Cc: Thierry Reding Cc: Mikko Perttunen Cc: linux-tegra@vger.kernel.org Reviewed-by: Thomas Zimmermann Signed-off-by: Ville Syrjälä Link: https://patchwork.freedesktop.org/patch/msgid/20250701090722.13645-17-ville.syrjala@linux.intel.com

drm: Pass the format info to .fb_create()

2025-07-16T17:03:14+00:00

Pass along the format information from the top to .fb_create() so that we can avoid redundant (and somewhat expensive) lookups in the drivers. Done with cocci (with some manual fixups): @@ identifier func =~ ".*create.*"; identifier dev, file, mode_cmd; @@ struct drm_framebuffer *func( struct drm_device *dev, struct drm_file *file, + const struct drm_format_info *info, const struct drm_mode_fb_cmd2 *mode_cmd) { ... ( - const struct drm_format_info *info = drm_get_format_info(...); | - const struct drm_format_info *info; ... - info = drm_get_format_info(...); ) <... - if (!info) - return ...; ...> } @@ identifier func =~ ".*create.*"; identifier dev, file, mode_cmd; @@ struct drm_framebuffer *func( struct drm_device *dev, struct drm_file *file, + const struct drm_format_info *info, const struct drm_mode_fb_cmd2 *mode_cmd) { ... } @find@ identifier fb_create_func =~ ".*create.*"; identifier dev, file, mode_cmd; @@ struct drm_framebuffer *fb_create_func( struct drm_device *dev, struct drm_file *file, + const struct drm_format_info *info, const struct drm_mode_fb_cmd2 *mode_cmd); @@ identifier find.fb_create_func; expression dev, file, mode_cmd; @@ fb_create_func(dev, file + ,info ,mode_cmd) @@ expression dev, file, mode_cmd; @@ drm_gem_fb_create(dev, file + ,info ,mode_cmd) @@ expression dev, file, mode_cmd; @@ drm_gem_fb_create_with_dirty(dev, file + ,info ,mode_cmd) @@ expression dev, file_priv, mode_cmd; identifier info, fb; @@ info = drm_get_format_info(...); ... fb = dev->mode_config.funcs->fb_create(dev, file_priv + ,info ,mode_cmd); @@ identifier dev, file_priv, mode_cmd; @@ struct drm_mode_config_funcs { ... struct drm_framebuffer *(*fb_create)(struct drm_device *dev, struct drm_file *file_priv, + const struct drm_format_info *info, const struct drm_mode_fb_cmd2 *mode_cmd); ... }; v2: Fix kernel docs (Laurent) Fix commit msg (Geert) Cc: Alex Deucher Cc: Liviu Dudau Cc: Maxime Ripard Cc: Russell King Cc: Inki Dae Cc: Seung-Woo Kim Cc: Kyungmin Park Cc: Patrik Jakobsson Cc: Chun-Kuang Hu Cc: Philipp Zabel Cc: Rob Clark Cc: Abhinav Kumar Cc: Dmitry Baryshkov Cc: Sean Paul Cc: Marijn Suijten Cc: Marek Vasut Cc: Stefan Agner Cc: Lyude Paul Cc: Danilo Krummrich Cc: Tomi Valkeinen Cc: Dave Airlie Cc: Gerd Hoffmann Cc: Kieran Bingham Cc: Biju Das Cc: Sandy Huang Cc: "Heiko Stübner" Cc: Andy Yan Cc: Thierry Reding Cc: Mikko Perttunen Cc: Dave Stevenson Cc: "Maíra Canal" Cc: Raspberry Pi Kernel Maintenance Cc: Dmitry Osipenko Cc: Gurchetan Singh Cc: Chia-I Wu Cc: Zack Rusin Cc: Broadcom internal kernel review list Cc: Oleksandr Andrushchenko Cc: amd-gfx@lists.freedesktop.org Cc: linux-arm-msm@vger.kernel.org Cc: freedreno@lists.freedesktop.org Cc: nouveau@lists.freedesktop.org Cc: virtualization@lists.linux.dev Cc: spice-devel@lists.freedesktop.org Cc: linux-renesas-soc@vger.kernel.org Cc: linux-tegra@vger.kernel.org Cc: Laurent Pinchart Reviewed-by: Geert Uytterhoeven Reviewed-by: Thomas Zimmermann Reviewed-by: Dmitry Baryshkov Acked-by: Liviu Dudau Reviewed-by: Laurent Pinchart Acked-by: Alex Deucher Acked-by: Rodrigo Vivi Signed-off-by: Ville Syrjälä Link: https://patchwork.freedesktop.org/patch/msgid/20250701090722.13645-5-ville.syrjala@linux.intel.com

drm/tegra: Run DRM default client setup

2024-09-26T07:31:29+00:00

Rework fbdev probing to support fbdev_probe in struct drm_driver and remove the old fb_probe callback. Provide an initializer macro for struct drm_driver that sets the callback according to the kernel configuration. Call drm_client_setup() to run the kernel's default client setup for DRM. Set fbdev_probe in struct drm_driver, so that the client setup can start the common fbdev client. The tegra driver specifies a preferred color mode of 32. As this is the default if no format has been given, leave it out entirely. v5: - select DRM_CLIENT_SELECTION Signed-off-by: Thomas Zimmermann Cc: Thierry Reding Cc: Mikko Perttunen Cc: Jonathan Hunter Acked-by: Javier Martinez Canillas Link: https://patchwork.freedesktop.org/patch/msgid/20240924071734.98201-79-tzimmermann@suse.de

drm/tegra: convert to struct drm_edid

2024-08-29T11:30:14+00:00

Prefer the struct drm_edid based functions for reading the EDID and updating the connector. Acked-by: Thierry Reding Reviewed-by: Daniel Vetter Link: https://patchwork.freedesktop.org/patch/msgid/e764b50f4ad2de95e449ccb37f49c3f37b3333fc.1724348429.git.jani.nikula@intel.com Signed-off-by: Jani Nikula

drm/tegra: include drm/drm_edid.h only where needed

2023-12-14T17:21:32+00:00

Reduce the need for rebuilds when drm_edid.h is modified by including it only where needed. v2: Fix build (kernel test robot ) Signed-off-by: Jani Nikula Signed-off-by: Thierry Reding Link: https://patchwork.freedesktop.org/patch/msgid/20231213101951.3932273-1-jani.nikula@intel.com

drm/tegra: Remove two unused function declarations

2023-10-11T20:52:43+00:00

Commit 776dc3840367 ("drm/tegra: Move subdevice infrastructure to host1x") removed the implementation but not the declaration. Signed-off-by: Yue Haibing Signed-off-by: Thierry Reding Link: https://patchwork.freedesktop.org/patch/msgid/20230809030226.3412-1-yuehaibing@huawei.com

drm/tegra: Implement fbdev emulation as in-kernel client

2023-04-06T10:18:56+00:00

Move code from ad-hoc fbdev callbacks into DRM client functions and remove the old callbacks. The functions instruct the client to poll for changed output or restore the display. The DRM core calls both, the old callbacks and the new client helpers, from the same places. The new functions perform the same operation as before, so there's no change in functionality. Replace all code that initializes or releases fbdev emulation throughout the driver. Instead initialize the fbdev client by a single call to tegra_fbdev_setup() after tegra has registered its DRM device. As in most drivers, tegra's fbdev emulation now acts like a regular DRM client. The fbdev client setup consists of the initial preparation and the hot-plugging of the display. The latter creates the fbdev device and sets up the fbdev framebuffer. The setup performs display hot-plugging once. If no display can be detected, DRM probe helpers re-run the detection on each hotplug event. A call to drm_dev_unregister() releases the client automatically. No further action is required within tegra. If the fbdev framebuffer has been fully set up, struct fb_ops.fb_destroy implements the release. For partially initialized emulation, the fbdev client reverts the initial setup. Signed-off-by: Thomas Zimmermann Signed-off-by: Thierry Reding

drm/tegra: Hide fbdev support behind config option

2023-04-06T10:18:54+00:00

Only build tegra's fbdev emulation if CONFIG_DRM_FBDEV_EMULATION has been enabled. As part of this change, move the code into its own source file. No functional changes. Signed-off-by: Thomas Zimmermann Signed-off-by: Thierry Reding

drm/tegra: Remove struct tegra_fbdev

2023-04-05T15:06:07+00:00

Remove struct tegra_fbdev, which is an empty wrapper around struct drm_fb_helper. Use the latter directly. No functional changes. Signed-off-by: Thomas Zimmermann Signed-off-by: Thierry Reding