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drm/mipi-dbi: Use shadow-plane mappings

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Use the buffer mappings provided by shadow-plane helpers. As the
mappings are established while the commit can still fail, errors
are now reported correctly to callers.

v2:
	* use shadow-plane state directly (Noralf)

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Noralf Trønnes <noralf@tronnes.org>
Tested-by: Javier Martinez Canillas <javierm@redhat.com>
Tested-by: Noralf Trønnes <noralf@tronnes.org> # drm/tiny/mi0283qt
Link: https://patchwork.freedesktop.org/patch/msgid/20221202125644.7917-8-tzimmermann@suse.de
This commit is contained in:
Thomas Zimmermann
2022-12-02 13:56:43 +01:00
parent e7caf04d49
commit 69c63e88ea
3 changed files with 13 additions and 44 deletions
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25
drivers/gpu/drm/drm_mipi_dbi.c
View File

@@ -321,12 +321,10 @@ EXPORT_SYMBOL(mipi_dbi_pipe_mode_valid);
void mipi_dbi_pipe_update(struct drm_simple_display_pipe *pipe,
struct drm_plane_state *old_state)
{
struct iosys_map map[DRM_FORMAT_MAX_PLANES] = { };
struct iosys_map data[DRM_FORMAT_MAX_PLANES] = { };
struct drm_plane_state *state = pipe->plane.state;
struct drm_shadow_plane_state *shadow_plane_state = to_drm_shadow_plane_state(state);
struct drm_framebuffer *fb = state->fb;
struct drm_rect rect;
int ret;
if (!pipe->crtc.state->active)
return;
@@ -334,14 +332,8 @@ void mipi_dbi_pipe_update(struct drm_simple_display_pipe *pipe,
if (WARN_ON(!fb))
return;
ret = drm_gem_fb_vmap(fb, map, data);
if (ret)
return;
if (drm_atomic_helper_damage_merged(old_state, state, &rect))
mipi_dbi_fb_dirty(&data[0], fb, &rect);
drm_gem_fb_vunmap(fb, map);
mipi_dbi_fb_dirty(&shadow_plane_state->data[0], fb, &rect);
}
EXPORT_SYMBOL(mipi_dbi_pipe_update);
@@ -362,6 +354,7 @@ void mipi_dbi_enable_flush(struct mipi_dbi_dev *dbidev,
struct drm_crtc_state *crtc_state,
struct drm_plane_state *plane_state)
{
struct drm_shadow_plane_state *shadow_plane_state = to_drm_shadow_plane_state(plane_state);
struct drm_framebuffer *fb = plane_state->fb;
struct drm_rect rect = {
.x1 = 0,
@@ -369,22 +362,14 @@ void mipi_dbi_enable_flush(struct mipi_dbi_dev *dbidev,
.y1 = 0,
.y2 = fb->height,
};
struct iosys_map map[DRM_FORMAT_MAX_PLANES] = { };
struct iosys_map data[DRM_FORMAT_MAX_PLANES] = { };
int idx, ret;
int idx;
if (!drm_dev_enter(&dbidev->drm, &idx))
return;
ret = drm_gem_fb_vmap(fb, map, data);
if (ret)
goto err_drm_dev_exit;
mipi_dbi_fb_dirty(&data[0], fb, &rect);
mipi_dbi_fb_dirty(&shadow_plane_state->data[0], fb, &rect);
backlight_enable(dbidev->backlight);
drm_gem_fb_vunmap(fb, map);
err_drm_dev_exit:
drm_dev_exit(idx);
}
EXPORT_SYMBOL(mipi_dbi_enable_flush);

16
drivers/gpu/drm/tiny/ili9225.c
View File

@@ -164,19 +164,15 @@ static void ili9225_pipe_update(struct drm_simple_display_pipe *pipe,
struct drm_plane_state *old_state)
{
struct drm_plane_state *state = pipe->plane.state;
struct drm_shadow_plane_state *shadow_plane_state = to_drm_shadow_plane_state(state);
struct drm_framebuffer *fb = state->fb;
struct drm_gem_dma_object *dma_obj;
struct iosys_map src;
struct drm_rect rect;
if (!pipe->crtc.state->active)
return;
dma_obj = drm_fb_dma_get_gem_obj(fb, 0);
iosys_map_set_vaddr(&src, dma_obj->vaddr);
if (drm_atomic_helper_damage_merged(old_state, state, &rect))
ili9225_fb_dirty(&src, fb, &rect);
ili9225_fb_dirty(&shadow_plane_state->data[0], fb, &rect);
}
static void ili9225_pipe_enable(struct drm_simple_display_pipe *pipe,
@@ -184,6 +180,7 @@ static void ili9225_pipe_enable(struct drm_simple_display_pipe *pipe,
struct drm_plane_state *plane_state)
{
struct mipi_dbi_dev *dbidev = drm_to_mipi_dbi_dev(pipe->crtc.dev);
struct drm_shadow_plane_state *shadow_plane_state = to_drm_shadow_plane_state(plane_state);
struct drm_framebuffer *fb = plane_state->fb;
struct device *dev = pipe->crtc.dev->dev;
struct mipi_dbi *dbi = &dbidev->dbi;
@@ -193,8 +190,6 @@ static void ili9225_pipe_enable(struct drm_simple_display_pipe *pipe,
.y1 = 0,
.y2 = fb->height,
};
struct drm_gem_dma_object *dma_obj;
struct iosys_map src;
int ret, idx;
u8 am_id;
@@ -285,10 +280,7 @@ static void ili9225_pipe_enable(struct drm_simple_display_pipe *pipe,
ili9225_command(dbi, ILI9225_DISPLAY_CONTROL_1, 0x1017);
dma_obj = drm_fb_dma_get_gem_obj(fb, 0);
iosys_map_set_vaddr(&src, dma_obj->vaddr);
ili9225_fb_dirty(&src, fb, &rect);
ili9225_fb_dirty(&shadow_plane_state->data[0], fb, &rect);
out_exit:
drm_dev_exit(idx);

16
drivers/gpu/drm/tiny/st7586.c
View File

@@ -153,19 +153,15 @@ static void st7586_pipe_update(struct drm_simple_display_pipe *pipe,
struct drm_plane_state *old_state)
{
struct drm_plane_state *state = pipe->plane.state;
struct drm_shadow_plane_state *shadow_plane_state = to_drm_shadow_plane_state(state);
struct drm_framebuffer *fb = state->fb;
struct drm_gem_dma_object *dma_obj;
struct iosys_map src;
struct drm_rect rect;
if (!pipe->crtc.state->active)
return;
dma_obj = drm_fb_dma_get_gem_obj(fb, 0);
iosys_map_set_vaddr(&src, dma_obj->vaddr);
if (drm_atomic_helper_damage_merged(old_state, state, &rect))
st7586_fb_dirty(&src, fb, &rect);
st7586_fb_dirty(&shadow_plane_state->data[0], fb, &rect);
}
static void st7586_pipe_enable(struct drm_simple_display_pipe *pipe,
@@ -173,6 +169,7 @@ static void st7586_pipe_enable(struct drm_simple_display_pipe *pipe,
struct drm_plane_state *plane_state)
{
struct mipi_dbi_dev *dbidev = drm_to_mipi_dbi_dev(pipe->crtc.dev);
struct drm_shadow_plane_state *shadow_plane_state = to_drm_shadow_plane_state(plane_state);
struct drm_framebuffer *fb = plane_state->fb;
struct mipi_dbi *dbi = &dbidev->dbi;
struct drm_rect rect = {
@@ -181,8 +178,6 @@ static void st7586_pipe_enable(struct drm_simple_display_pipe *pipe,
.y1 = 0,
.y2 = fb->height,
};
struct drm_gem_dma_object *dma_obj;
struct iosys_map src;
int idx, ret;
u8 addr_mode;
@@ -242,10 +237,7 @@ static void st7586_pipe_enable(struct drm_simple_display_pipe *pipe,
msleep(100);
dma_obj = drm_fb_dma_get_gem_obj(fb, 0);
iosys_map_set_vaddr(&src, dma_obj->vaddr);
st7586_fb_dirty(&src, fb, &rect);
st7586_fb_dirty(&shadow_plane_state->data[0], fb, &rect);
mipi_dbi_command(dbi, MIPI_DCS_SET_DISPLAY_ON);
out_exit: