kernel/linux.git/drivers/gpu/drm/clients, branch v6.18.21

drm/client: fix MODULE_PARM_DESC string for "active"

2025-11-13T13:15:24+00:00

The MODULE_PARM_DESC string for the "active" parameter is missing a space and has an extraneous trailing ']' character. Correct these. Before patch: $ modinfo -p ./drm_client_lib.ko active:Choose which drm client to start, default isfbdev] (string) After patch: $ modinfo -p ./drm_client_lib.ko active:Choose which drm client to start, default is fbdev (string) Fixes: f7b42442c4ac ("drm/log: Introduce a new boot logger to draw the kmsg on the screen") Signed-off-by: Randy Dunlap Reviewed-by: Thomas Zimmermann Reviewed-by: Jocelyn Falempe Signed-off-by: Thomas Zimmermann Link: https://patch.msgid.link/20251112010920.2355712-1-rdunlap@infradead.org

drm/fbdev-client: Skip DRM clients if modesetting is absent

2025-07-06T11:05:07+00:00

Recent generations of Tegra have moved the display components outside of host1x, leading to a device that has no CRTCs attached and hence doesn't support any of the modesetting functionality. When this is detected, the driver clears the DRIVER_MODESET and DRIVER_ATOMIC flags for the device. Unfortunately, this causes the following errors during boot: [ 15.418958] ERR KERN drm drm: [drm] *ERROR* Failed to register client: -95 [ 15.425311] WARNING KERN drm drm: [drm] Failed to set up DRM client; error -95 These originate from the fbdev client checking for the presence of the DRIVER_MODESET flag and returning -EOPNOTSUPP. However, if a driver does not support DRIVER_MODESET this is entirely expected and the error isn't helpful. Prevent this misleading error message by setting up the DRM clients only if modesetting is enabled. Changes in v2: - use DRIVER_MODESET check to avoid registering any clients Reported-by: Jonathan Hunter Signed-off-by: Thierry Reding Acked-by: Jon Hunter Tested-by: Jon Hunter Reviewed-by: Thomas Zimmermann Link: https://lore.kernel.org/r/20250613122838.2082334-1-thierry.reding@gmail.com Signed-off-by: Dmitry Baryshkov

drm/client: Include

2025-06-16T07:02:29+00:00

Fixes the compile-time warnings drivers/gpu/drm/clients/drm_client_setup.c: warning: EXPORT_SYMBOL() is used, but #include is missing drivers/gpu/drm/drm_client.c: warning: EXPORT_SYMBOL() is used, but #include is missing drivers/gpu/drm/drm_client_event.c: warning: EXPORT_SYMBOL() is used, but #include is missing drivers/gpu/drm/drm_client_modeset.c: warning: EXPORT_SYMBOL() is used, but #include is missing drivers/gpu/drm/drm_fb_helper.c: warning: EXPORT_SYMBOL() is used, but #include is missing drivers/gpu/drm/drm_fbdev_dma.c: warning: EXPORT_SYMBOL() is used, but #include is missing drivers/gpu/drm/drm_fbdev_shmem.c: warning: EXPORT_SYMBOL() is used, but #include is missing drivers/gpu/drm/drm_fbdev_ttm.c: warning: EXPORT_SYMBOL() is used, but #include is missing Signed-off-by: Thomas Zimmermann Fixes: a934a57a42f6 ("scripts/misc-check: check missing #include when W=1") Reviewed-by: André Almeida Cc: Masahiro Yamada Cc: Nathan Chancellor Link: https://lore.kernel.org/r/20250612121633.229222-5-tzimmermann@suse.de

printk: Rename console_start to console_resume

2025-03-11T11:51:21+00:00

The intent of console_start was to resume a previously suspended console, so rename it accordingly. Signed-off-by: Marcos Paulo de Souza Reviewed-by: Petr Mladek Reviewed-by: John Ogness Link: https://lore.kernel.org/r/20250226-printk-renaming-v1-4-0b878577f2e6@suse.com [pmladek@suse.com: Fixed typo in the commit message. Updated also new drm_log.c.] Signed-off-by: Petr Mladek

printk: Rename console_stop to console_suspend

2025-03-11T11:41:55+00:00

The intent of console_stop was in fact to suspend it, so rename the function accordingly. Signed-off-by: Marcos Paulo de Souza Reviewed-by: Petr Mladek Reviewed-by: John Ogness Link: https://lore.kernel.org/r/20250226-printk-renaming-v1-3-0b878577f2e6@suse.com [pmladek@suse.com: Fixed typo in the commit message. Updated also new drm_log.c] Signed-off-by: Petr Mladek

drm/log: select CONFIG_FONT_SUPPORT

2024-12-12T17:26:32+00:00

Without fonts, this fails to link: drivers/gpu/drm/clients/drm_log.o: in function `drm_log_init_client': drm_log.c:(.text+0x3d4): undefined reference to `get_default_font' Select this, like the other users do. Fixes: f7b42442c4ac ("drm/log: Introduce a new boot logger to draw the kmsg on the screen") Signed-off-by: Arnd Bergmann Reviewed-by: Jocelyn Falempe Signed-off-by: Jocelyn Falempe Link: https://patchwork.freedesktop.org/patch/msgid/20241212154003.1313437-1-arnd@kernel.org

drm/client: Fix drm client endless Kconfig loop

2024-12-12T10:22:32+00:00

if DRM_CLIENT_SELECTION is enabled, and none of the client is, the "Default DRM Client" choice is empty, and this makes Kconfig goes into an infinite loop of: Default DRM Client choice[1-0?]: 0 Default DRM Client choice[1-0?]: 0 Default DRM Client choice[1-0?]: 0 .... So only allow the choice if at least one of the client is selected. Fixes: f7b42442c4ac ("drm/log: Introduce a new boot logger to draw the kmsg on the screen") Reported-by: Dan Carpenter Closes: https://lore.kernel.org/dri-devel/20241204160014.1171469-1-jfalempe@redhat.com/T/#md78853bba8904fd7614073f280f721d13ab0b432 Signed-off-by: Jocelyn Falempe Tested-by: Dan Carpenter Acked-by: Simona Vetter Link: https://patchwork.freedesktop.org/patch/msgid/20241212091153.1592096-1-jfalempe@redhat.com

drm/log: Add integer scaling support

2024-12-10T13:36:54+00:00

Add a module parameter, to increase the font size for HiDPI screen. Even with CONFIG_FONT_TER16x32, it can still be a bit small to read. In this case, adding drm_log.scale=2 to your kernel command line will double the character size. Signed-off-by: Jocelyn Falempe Reviewed-by: Thomas Zimmermann Link: https://patchwork.freedesktop.org/patch/msgid/20241204160014.1171469-7-jfalempe@redhat.com

drm/log: Implement suspend/resume

2024-12-10T13:36:54+00:00

Normally the console is already suspended when the graphic driver suspend callback is called, but if the parameter no_console_suspend is set, it might still be active. So call console_stop()/console_start() in the suspend/resume callbacks, to make sure it won't try to write to the framebuffer while the graphic driver is suspended. Signed-off-by: Jocelyn Falempe Reviewed-by: John Ogness Acked-by: Petr Mladek Reviewed-by: Thomas Zimmermann Link: https://patchwork.freedesktop.org/patch/msgid/20241204160014.1171469-6-jfalempe@redhat.com

drm/log: Color the timestamp, to improve readability

2024-12-10T13:36:54+00:00

Color the timesamp prefix, similar to dmesg. Signed-off-by: Jocelyn Falempe Reviewed-by: Thomas Zimmermann Link: https://patchwork.freedesktop.org/patch/msgid/20241204160014.1171469-5-jfalempe@redhat.com