linux/drivers/gpu/drm/ast, branch v5.7

drm/ast: Use simple encoder

2020-03-02T08:22:43Z

The ast driver uses an empty implementation for its encoder. Replace the code with the generic simple encoder. v2: * rebase onto new simple-encoder interface Signed-off-by: Thomas Zimmermann Acked-by: Sam Ravnborg Link: https://patchwork.freedesktop.org/patch/msgid/20200228081828.18463-3-tzimmermann@suse.de

drm/vram: Add helpers to validate a display mode's memory requirements

2020-02-06T09:32:54Z

Devices with low amount of dedicated video memory may not be able to use all possible display modes, as the framebuffers may not fit into VRAM. The new helper function drm_vram_helper_mode_valid() implements a simple test to sort out all display modes that can not be used in any case. Drivers should call this function from struct drm_mode_config_funcs.mode_valid. The functionality was originally implemented by the ast driver, which is being converted as well. v2: * WARN_ON if VRAM memory manager has not been initialized * documentation fixes * unexported drm_vram_helper_mode_valid_internal() Signed-off-by: Thomas Zimmermann Reviewed-by: Daniel Vetter Link: https://patchwork.freedesktop.org/patch/msgid/20200203155258.9346-2-tzimmermann@suse.de

drm/ast: Don't set struct drm_crtc_state.no_vblank explicitly

2020-01-30T08:00:33Z

As ast does not initialize vblanking, atomic helpers initialize the value of struct drm_crtc_state.no_vblank to be true. No need to set it from within the driver. Signed-off-by: Thomas Zimmermann Acked-by: Gerd Hoffmann Reviewed-by: Daniel Vetter Link: https://patchwork.freedesktop.org/patch/msgid/20200129120531.6891-4-tzimmermann@suse.de

drm/vram-helper: Remove BO device from public interface

2020-01-07T10:53:19Z

TTM is an implementation detail of the VRAM helpers and therefore shouldn't be exposed to the callers. There's only one correct value for the BO device anyway, which is the one stored in the DRM device. So remove struct ttm_bo_device from the VRAM-helper interface and use the device's VRAM manager unconditionally. The GEM initializer function fails if the VRAM manager has not been initialized. Signed-off-by: Thomas Zimmermann Reviewed-by: Daniel Vetter Acked-by: Sam Ravnborg Link: https://patchwork.freedesktop.org/patch/msgid/20200106125745.13797-8-tzimmermann@suse.de

drm/vram-helper: Remove interruptible flag from public interface

2020-01-07T10:53:19Z

The flag 'interruptible', which is passed to various functions, is always set to be false. Remove it and hard-code the value. Signed-off-by: Thomas Zimmermann Suggested-by: Daniel Vetter Reviewed-by: Daniel Vetter Acked-by: Sam Ravnborg Link: https://patchwork.freedesktop.org/patch/msgid/20200106125745.13797-7-tzimmermann@suse.de

drm/ast: Store primary-plane format in struct ast_crtc_state

2019-12-10T13:28:43Z

Reading the primary plane's framebuffer from the CRTC's atomic_flush() function is fragile as the plane state or framebuffer can be NULL. Instead, we let the plane's atomic_check() store the framebuffer format in the CRTC state. The CRTC always receives the framebuffer format that is currently programmed, or NULL if no mode has been set yet. Signed-off-by: Thomas Zimmermann Acked-by: Gerd Hoffmann Link: https://patchwork.freedesktop.org/patch/msgid/20191202111557.15176-8-tzimmermann@suse.de

drm/ast: Store VBIOS mode info in struct ast_crtc_state

2019-12-10T13:28:04Z

After looking up VBIOS mode information in CRTC's atomic_check(), we can reuse it in atomic_flush(). No need for a second look-up. Signed-off-by: Thomas Zimmermann Acked-by: Gerd Hoffmann Link: https://patchwork.freedesktop.org/patch/msgid/20191202111557.15176-7-tzimmermann@suse.de

drm/ast: Introduce struct ast_crtc_state

2019-12-10T13:26:13Z

AST-specific CRTC state can be placed in the new struct ast_crtc_state. The atomic check functions of the CRTC and the primary plane will store the VBIOS mode info and the framebuffer format here. The CRTC will consume these during atomic_flush(). Signed-off-by: Thomas Zimmermann Acked-by: Gerd Hoffmann Link: https://patchwork.freedesktop.org/patch/msgid/20191202111557.15176-6-tzimmermann@suse.de

drm/ast: Add plane atomic_check() functions

2019-12-10T13:25:59Z

Introducing atomic_check() for priamry and cursor plane. The functions validate the plane state and will later set format information for the CRTC's atomic_flush(). Signed-off-by: Thomas Zimmermann Acked-by: Gerd Hoffmann Link: https://patchwork.freedesktop.org/patch/msgid/20191202111557.15176-5-tzimmermann@suse.de

drm/ast: Clean up arguments of register functions

2019-12-10T13:25:47Z

In preparation of an update of the primary-plane code, this patch changes the arguments of several register-setting functions. No functional changes are made. The function ast_set_dac_reg() has no effect and therefore gets removed entirely. Signed-off-by: Thomas Zimmermann Acked-by: Gerd Hoffmann Link: https://patchwork.freedesktop.org/patch/msgid/20191202111557.15176-4-tzimmermann@suse.de