linux-toradex.git/drivers/gpu/drm/ast/ast_main.c, branch v6.14-rc2

drm/ast: Warn about unsupported TX chips

2024-09-18T12:20:21+00:00

A number of TX chips are listed in VGACRD1, but not supported by
the ast driver. Whether any existing product uses such a chip is
unknown. Warn if the driver encounters any. We can then add
support as necessary.

Signed-off-by: Thomas Zimmermann 
Suggested-by: Jocelyn Falempe 
Reviewed-by: Jocelyn Falempe 
Link: https://patchwork.freedesktop.org/patch/msgid/20240916082920.56234-4-tzimmermann@suse.de

drm/ast: Use TX-chip register constants

2024-09-18T12:20:20+00:00

Replace magic values with named constants when reading the TX chip
from VGACRD1.

Signed-off-by: Thomas Zimmermann 
Reviewed-by: Jocelyn Falempe 
Link: https://patchwork.freedesktop.org/patch/msgid/20240916082920.56234-3-tzimmermann@suse.de

drm/ast: Rename register constants for TX-chip types

2024-09-18T12:20:19+00:00

The type of the TX chip is provided in VGACRD1. Rename the constants
accordingly.

Signed-off-by: Thomas Zimmermann 
Reviewed-by: Jocelyn Falempe 
Link: https://patchwork.freedesktop.org/patch/msgid/20240916082920.56234-2-tzimmermann@suse.de

drm/ast: Avoid upcasting to struct ast_device

2024-09-13T13:41:18+00:00

Several functions receive an instance of struct drm_device only to
upcast it to struct ast_device. Improve type safety by passing the
AST device directly.

Signed-off-by: Thomas Zimmermann 
Reviewed-by: Jocelyn Falempe 
Link: https://patchwork.freedesktop.org/patch/msgid/20240911115347.899148-11-tzimmermann@suse.de

drm/ast: dp501: Avoid upcasting to struct ast_device

2024-09-13T13:41:16+00:00

Several functions receive an instance of struct drm_device only to
upcast it to struct ast_device. Improve type safety by passing the
AST device directly.

Signed-off-by: Thomas Zimmermann 
Reviewed-by: Jocelyn Falempe 
Link: https://patchwork.freedesktop.org/patch/msgid/20240911115347.899148-7-tzimmermann@suse.de

drm/ast: Remove TX-chip bitmask

2024-09-11T10:49:00+00:00

The CRTC has only one output attached to it. Store the output's type
of TX chip in a single field and remove the related bitmask.

Turn the type-less output field in struct ast_device into a union, as
only one of its fields will be used at a time.

Signed-off-by: Thomas Zimmermann 
Reviewed-by: Jocelyn Falempe 
Link: https://patchwork.freedesktop.org/patch/msgid/20240903132601.91618-1-tzimmermann@suse.de

drm/ast: astdp: Test firmware status once during probing

2024-07-30T10:15:37+00:00

Test for running ASTDP firmware during probe. Do not bother testing
this later. We cannot do much anyway if the firmware fails. Do not
initialize the ASTDP conenctor if the test fails during device probing.

Signed-off-by: Thomas Zimmermann 
Reported-by: Shixiong Ou 
Tested-by: Shixiong Ou 
Reviewed-by: Jocelyn Falempe 
Link: https://patchwork.freedesktop.org/patch/msgid/20240717143319.104012-3-tzimmermann@suse.de

drm/ast: Include where necessary

2024-04-02T08:40:43+00:00

Include  to get of_property_read_u32() in the source
files that need it. Avoids the proxy include via .

Signed-off-by: Thomas Zimmermann 
Reviewed-by: Sui Jingfeng 
Reviewed-by: Jocelyn Falempe 
Link: https://patchwork.freedesktop.org/patch/msgid/20240325200855.21150-2-tzimmermann@suse.de

drm/ast: Move detection code into PCI probe helper

2023-11-28T15:17:08+00:00

Detect device type and config mode in the PCI probe helper, but leave
DRM device initialization where it is. Structures the driver probe and
setup code into a detection and an initialization phase.

A later patch can add branching to the device-initialization code. Each
chip type can have it own initializer function, if necessary.

Signed-off-by: Thomas Zimmermann 
Reviewed-by: Jocelyn Falempe 
Link: https://patchwork.freedesktop.org/patch/msgid/20231116100240.22975-11-tzimmermann@suse.de

drm/ast: Detect ast device type and config mode without ast device

2023-11-28T15:17:08+00:00

Return the ast chip and config in the detection function's parameters
instead of storing them directly in the ast device instance.

v2:
	* add break statements to switch default branches (Jocelyn)

Signed-off-by: Thomas Zimmermann 
Reviewed-by: Jocelyn Falempe 
Link: https://patchwork.freedesktop.org/patch/msgid/20231116100240.22975-10-tzimmermann@suse.de