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drm/mgag200: Implement struct drm_plane_helper_funcs.atomic_enable

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Enable the primary plane for mgag200 hardware via atomic_enable.
Atomic helpers invoke this callback only when the plane becomes
active.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230209154107.30680-5-tzimmermann@suse.de
This commit is contained in:
Thomas Zimmermann 2023-02-09 16:41:05 +01:00
parent b712b3830a
commit 2a742fd164
2 changed files with 15 additions and 7 deletions
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3
drivers/gpu/drm/mgag200/mgag200_drv.h
View file

@ -375,12 +375,15 @@ int mgag200_primary_plane_helper_atomic_check(struct drm_plane *plane,
struct drm_atomic_state *new_state);
void mgag200_primary_plane_helper_atomic_update(struct drm_plane *plane,
struct drm_atomic_state *old_state);
void mgag200_primary_plane_helper_atomic_enable(struct drm_plane *plane,
struct drm_atomic_state *state);
void mgag200_primary_plane_helper_atomic_disable(struct drm_plane *plane,
struct drm_atomic_state *old_state);
#define MGAG200_PRIMARY_PLANE_HELPER_FUNCS \
DRM_GEM_SHADOW_PLANE_HELPER_FUNCS, \
.atomic_check = mgag200_primary_plane_helper_atomic_check, \
.atomic_update = mgag200_primary_plane_helper_atomic_update, \
.atomic_enable = mgag200_primary_plane_helper_atomic_enable, \
.atomic_disable = mgag200_primary_plane_helper_atomic_disable
#define MGAG200_PRIMARY_PLANE_FUNCS \

19
drivers/gpu/drm/mgag200/mgag200_mode.c
View file

@ -501,7 +501,6 @@ void mgag200_primary_plane_helper_atomic_update(struct drm_plane *plane,
struct drm_framebuffer *fb = plane_state->fb;
struct drm_atomic_helper_damage_iter iter;
struct drm_rect damage;
u8 seq1;
drm_atomic_helper_damage_iter_init(&iter, old_plane_state, plane_state);
drm_atomic_for_each_plane_damage(&iter, &damage) {
@ -511,13 +510,19 @@ void mgag200_primary_plane_helper_atomic_update(struct drm_plane *plane,
/* Always scanout image at VRAM offset 0 */
mgag200_set_startadd(mdev, (u32)0);
mgag200_set_offset(mdev, fb);
}
if (!old_plane_state->crtc && plane_state->crtc) { // enabling
RREG_SEQ(0x01, seq1);
seq1 &= ~MGAREG_SEQ1_SCROFF;
WREG_SEQ(0x01, seq1);
msleep(20);
}
void mgag200_primary_plane_helper_atomic_enable(struct drm_plane *plane,
struct drm_atomic_state *state)
{
struct drm_device *dev = plane->dev;
struct mga_device *mdev = to_mga_device(dev);
u8 seq1;
RREG_SEQ(0x01, seq1);
seq1 &= ~MGAREG_SEQ1_SCROFF;
WREG_SEQ(0x01, seq1);
msleep(20);
}
void mgag200_primary_plane_helper_atomic_disable(struct drm_plane *plane,