linux.git/drivers/gpu/drm/ast, branch v6.5

drm/ast: Fix modeset failed on DisplayPort

2023-06-01T08:40:38+00:00

If we switch display and update cursor together, it could lead to
modeset failed because of concurrent access to IO registers.

Add lock protection in DP's edid access to avoid this problem.

Reviewed-by: Thomas Zimmermann 
Signed-off-by: Jammy Huang 
Signed-off-by: Thomas Zimmermann 
Link: https://patchwork.freedesktop.org/patch/msgid/20230601004847.1115-1-jammy_huang@aspeedtech.com

drm/ast: Fix long time waiting on s3/s4 resume

2023-05-31T11:04:07+00:00

In resume, DP's launch function, ast_dp_launch, could wait at most 30
seconds before timeout to check if DP is enabled. It could lead to 'DPM
device timeout' and trigger unrecoverable kernel panic.

To avoid this problem, we check if DP enable or not at driver probe only.

Reported-and-tested-by: Wendy Wang 
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=217278
Acked-by: Thomas Zimmermann 
Signed-off-by: Jammy Huang 
Signed-off-by: Thomas Zimmermann 
Link: https://patchwork.freedesktop.org/patch/msgid/20230530041240.13427-1-jammy_huang@aspeedtech.com

Merge drm/drm-fixes into drm-misc-fixes

2023-05-12T07:47:12+00:00

Let's bring 6.4-rc1 in drm-misc-fixes to start the new fix cycle.

Signed-off-by: Maxime Ripard

drm/ast: Fix ARM compatibility

2023-04-21T07:42:01+00:00

ARM architecture only has 'memory', so all devices are accessed by
MMIO if possible.

Signed-off-by: Jammy Huang 
Reviewed-by: Thomas Zimmermann 
Signed-off-by: Thomas Zimmermann 
Link: https://patchwork.freedesktop.org/patch/msgid/20230421003354.27767-1-jammy_huang@aspeedtech.com

drm/ast: Use drm_aperture_remove_conflicting_pci_framebuffers

2023-04-04T12:55:50+00:00

It's just open coded and matches.

Note that Thomas said that his version apparently failed for some
reason, but hey maybe we should try again.

Signed-off-by: Daniel Vetter 
Cc: Dave Airlie 
Cc: Thomas Zimmermann 
Cc: Javier Martinez Canillas 
Cc: Helge Deller 
Cc: linux-fbdev@vger.kernel.org
Tested-by: Thomas Zimmmermann 
Reviewed-by: Thomas Zimmermann 
Signed-off-by: Thomas Zimmermann 
Link: https://patchwork.freedesktop.org/patch/msgid/20230111154112.90575-1-daniel.vetter@ffwll.ch

Merge drm/drm-next into drm-misc-next

2023-03-13T08:27:50+00:00

Backmerging to get v6.3-rc1 and sync with the other DRM trees.

Signed-off-by: Thomas Zimmermann

drm/ast: Rename to_ast_private() to to_ast_device()

2023-03-01T09:28:50+00:00

The helper to_ast_private() now upcasts to struct ast_device. Rename
it accordingly. No functional changes.

Signed-off-by: Thomas Zimmermann 
Reviewed-by: Javier Martinez Canillas 
Link: https://patchwork.freedesktop.org/patch/msgid/20230221155745.27484-5-tzimmermann@suse.de

drm/ast: Rename struct ast_private to struct ast_device

2023-03-01T09:28:42+00:00

The data structure struct ast_private represents an AST device. Its
name comes from the time when it was allocated and stored separately
in struct drm_device.dev_private. The DRM device is now embedded, so
rename struct ast_private to struct ast_device.

Signed-off-by: Thomas Zimmermann 
Reviewed-by: Javier Martinez Canillas 
Link: https://patchwork.freedesktop.org/patch/msgid/20230221155745.27484-4-tzimmermann@suse.de

drm/ast: Rework definition of I/O read and write helpers

2023-03-01T09:28:41+00:00

Ast defines a number of I/O helpers for accessing hardware. Only 4 of
the many generated functions are actually used. Replace the respective
generator macros with those 4 functions. No functional changes.

Signed-off-by: Thomas Zimmermann 
Reviewed-by: Javier Martinez Canillas 
Link: https://patchwork.freedesktop.org/patch/msgid/20230221155745.27484-3-tzimmermann@suse.de

drm/ast: Remove little-endianism from I/O helpers

2023-03-01T09:28:40+00:00

Replace one call to ast_io_write16() with two calls to ast_io_write8()
in ast_set_index_reg(). The combined 16-bit-wide write of an index
register and the corresponding data register only works on little-
endian systems. Write both registers independent from each other.

Signed-off-by: Thomas Zimmermann 
Reviewed-by: Javier Martinez Canillas 
Link: https://patchwork.freedesktop.org/patch/msgid/20230221155745.27484-2-tzimmermann@suse.de