linux-stable.git/drivers/gpu/drm/tiny/Kconfig, branch v6.15

drm/tiny: add driver for Apple Touch Bars in x86 Macs

2025-03-03T15:13:33+00:00

The Touch Bars found on x86 Macs support two USB configurations: one
where the device presents itself as a HID keyboard and can display
predefined sets of keys, and one where the operating system has full
control over what is displayed.

This commit adds support for the display functionality of the second
configuration. Functionality for the first configuration has been
merged in the HID tree.

Note that this driver has only been tested on T2 Macs, and only includes
the USB device ID for these devices. Testing on T1 Macs would be
appreciated.

Credit goes to Ben (Bingxing) Wang on GitHub for reverse engineering
most of the protocol.

Also, as requested by Andy, I would like to clarify the use of __packed
structs in this driver:

- All the packed structs are aligned except for appletbdrm_msg_information.
- We have to pack appletbdrm_msg_information since it is requirement of
the protocol.
- We compared binaries compiled by keeping the rest structs __packed and
not __packed using bloat-o-meter, and __packed was not affecting code
generation.
- To maintain consistency, rest structs have been kept __packed.

I would also like to point out that since the driver was reverse-engineered
the actual data types of the protocol might be different, including, but
not limited to, endianness.

Link: https://github.com/imbushuo/DFRDisplayKm
Signed-off-by: Kerem Karabay
Co-developed-by: Atharva Tiwari
Signed-off-by: Atharva Tiwari
Co-developed-by: Aditya Garg
Signed-off-by: Aditya Garg
Signed-off-by: Aun-Ali Zaidi
Reviewed-by: Thomas Zimmermann
Signed-off-by: Thomas Zimmermann
Link: https://patchwork.freedesktop.org/patch/msgid/FCAC702C-F84A-47F9-8C78-BBBB34D08500@live.com

drm/tiny: Add driver for Sharp Memory LCD

2024-10-18T23:21:32+00:00

Add support for the monochrome Sharp Memory LCDs.

Co-developed-by: Mehdi Djait 
Signed-off-by: Mehdi Djait 
Signed-off-by: Alex Lanzano 
Reviewed-by: Dmitry Baryshkov 
Acked-by: Uwe Kleine-König 
Link: https://patchwork.freedesktop.org/patch/msgid/20241015230617.3020230-3-lanzano.alex@gmail.com
Signed-off-by: Dmitry Baryshkov

drm/simpledrm: Run DRM default client setup

2024-09-26T07:31:28+00:00

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.

v5:
- select DRM_CLIENT_SELECTION

Signed-off-by: Thomas Zimmermann 
Cc: Thomas Zimmermann 
Cc: Javier Martinez Canillas 
Reviewed-by: Javier Martinez Canillas 
Link: https://patchwork.freedesktop.org/patch/msgid/20240924071734.98201-59-tzimmermann@suse.de

drm/ofdrm: Use DRM default client setup

2024-09-26T07:31:28+00:00

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.

v5:
- select DRM_CLIENT_SELECTION

Signed-off-by: Thomas Zimmermann 
Cc: Thomas Zimmermann 
Cc: Javier Martinez Canillas 
Reviewed-by: Javier Martinez Canillas 
Link: https://patchwork.freedesktop.org/patch/msgid/20240924071734.98201-58-tzimmermann@suse.de

drm/gm12u320: Run DRM default client setup

2024-09-26T07:31:28+00:00

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.

v5:
- select DRM_CLIENT_SELECTION

Signed-off-by: Thomas Zimmermann 
Cc: Hans de Goede 
Acked-by: Javier Martinez Canillas 
Link: https://patchwork.freedesktop.org/patch/msgid/20240924071734.98201-54-tzimmermann@suse.de

drm/cirrus: Run DRM default client setup

2024-09-26T07:31:28+00:00

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 cirrus driver requests the same client pixel format as the value
stored in struct drm_mode_config.preferred_depth. The fbdev client
also looks at this value for the default pixel format. Thus remove
the format selection from cirrus.

v5:
- select DRM_CLIENT_SELECTION

Signed-off-by: Thomas Zimmermann 
Cc: Dave Airlie 
Cc: Gerd Hoffmann 
Acked-by: Javier Martinez Canillas 
Link: https://patchwork.freedesktop.org/patch/msgid/20240924071734.98201-53-tzimmermann@suse.de

drm/bochs: Run DRM default client setup

2024-09-26T07:31:27+00:00

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 bochs 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
v4:
- rebase on top of GEM-SHMEM

Signed-off-by: Thomas Zimmermann 
Cc: Gerd Hoffmann 
Acked-by: Javier Martinez Canillas 
Link: https://patchwork.freedesktop.org/patch/msgid/20240924071734.98201-52-tzimmermann@suse.de

drm/st7735r: Run DRM default client setup

2024-09-26T07:31:27+00:00

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.

v5:
- select DRM_CLIENT_SELECTION

Signed-off-by: Thomas Zimmermann 
Cc: David Lechner 
Acked-by: David Lechner 
Link: https://patchwork.freedesktop.org/patch/msgid/20240924071734.98201-45-tzimmermann@suse.de

drm/st7586: Run DRM default client setup

2024-09-26T07:31:27+00:00

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.

v5:
- select DRM_CLIENT_SELECTION

Signed-off-by: Thomas Zimmermann 
Cc: David Lechner 
Acked-by: David Lechner 
Link: https://patchwork.freedesktop.org/patch/msgid/20240924071734.98201-44-tzimmermann@suse.de

drm/repaper: Run DRM default client setup

2024-09-26T07:31:27+00:00

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.

v5:
- select DRM_CLIENT_SELECTION

Signed-off-by: Thomas Zimmermann 
Cc: "Noralf Trønnes" 
Acked-by: Noralf Trønnes 
Link: https://patchwork.freedesktop.org/patch/msgid/20240924071734.98201-37-tzimmermann@suse.de