[PATCH 7/8] drm/mipi-dbi: Use shadow-plane mappings
Thomas Zimmermann
tzimmermann at suse.de
Mon Nov 21 10:45:31 UTC 2022
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.
Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
---
drivers/gpu/drm/drm_mipi_dbi.c | 31 +++++++++++--------------------
drivers/gpu/drm/tiny/ili9225.c | 28 ++++++++++------------------
drivers/gpu/drm/tiny/st7586.c | 22 ++++++++++------------
3 files changed, 31 insertions(+), 50 deletions(-)
diff --git a/drivers/gpu/drm/drm_mipi_dbi.c b/drivers/gpu/drm/drm_mipi_dbi.c
index 3030344d25b48..d45824a65c9fd 100644
--- a/drivers/gpu/drm/drm_mipi_dbi.c
+++ b/drivers/gpu/drm/drm_mipi_dbi.c
@@ -323,12 +323,13 @@ 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 mipi_dbi_plane_state *mipi_dbi_plane_state =
+ to_mipi_dbi_plane_state(state);
+ struct drm_shadow_plane_state *shadow_plane_state =
+ &mipi_dbi_plane_state->shadow_plane_state;
struct drm_framebuffer *fb = state->fb;
struct drm_rect rect;
- int ret;
if (!pipe->crtc.state->active)
return;
@@ -336,14 +337,8 @@ 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);
@@ -364,6 +359,10 @@ void mipi_dbi_enable_flush(struct mipi_dbi_dev *dbidev,
struct drm_crtc_state *crtc_state,
struct drm_plane_state *plane_state)
{
+ struct mipi_dbi_plane_state *mipi_dbi_plane_state =
+ to_mipi_dbi_plane_state(plane_state);
+ struct drm_shadow_plane_state *shadow_plane_state =
+ &mipi_dbi_plane_state->shadow_plane_state;
struct drm_framebuffer *fb = plane_state->fb;
struct drm_rect rect = {
.x1 = 0,
@@ -371,22 +370,14 @@ 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);
diff --git a/drivers/gpu/drm/tiny/ili9225.c b/drivers/gpu/drm/tiny/ili9225.c
index 9e55ce28b4552..ba5681b63ffbf 100644
--- a/drivers/gpu/drm/tiny/ili9225.c
+++ b/drivers/gpu/drm/tiny/ili9225.c
@@ -163,24 +163,19 @@ static void ili9225_fb_dirty(struct iosys_map *src, struct drm_framebuffer *fb,
static void ili9225_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 mipi_dbi_plane_state *mipi_dbi_plane_state =
+ to_mipi_dbi_plane_state(state);
+ struct drm_shadow_plane_state *shadow_plane_state =
+ &mipi_dbi_plane_state->shadow_plane_state;
struct drm_framebuffer *fb = state->fb;
struct drm_rect rect;
- int ret;
if (!pipe->crtc.state->active)
return;
- ret = drm_gem_fb_vmap(fb, map, data);
- if (ret)
- return;
-
if (drm_atomic_helper_damage_merged(old_state, state, &rect))
- ili9225_fb_dirty(&data[0], fb, &rect);
-
- drm_gem_fb_vunmap(fb, map);
+ ili9225_fb_dirty(&shadow_plane_state->data[0], fb, &rect);
}
static void ili9225_pipe_enable(struct drm_simple_display_pipe *pipe,
@@ -188,6 +183,10 @@ 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 mipi_dbi_plane_state *mipi_dbi_plane_state =
+ to_mipi_dbi_plane_state(plane_state);
+ struct drm_shadow_plane_state *shadow_plane_state =
+ &mipi_dbi_plane_state->shadow_plane_state;
struct drm_framebuffer *fb = plane_state->fb;
struct device *dev = pipe->crtc.dev->dev;
struct mipi_dbi *dbi = &dbidev->dbi;
@@ -197,8 +196,6 @@ static void ili9225_pipe_enable(struct drm_simple_display_pipe *pipe,
.y1 = 0,
.y2 = fb->height,
};
- struct iosys_map map[DRM_FORMAT_MAX_PLANES];
- struct iosys_map data[DRM_FORMAT_MAX_PLANES];
int ret, idx;
u8 am_id;
@@ -289,13 +286,8 @@ static void ili9225_pipe_enable(struct drm_simple_display_pipe *pipe,
ili9225_command(dbi, ILI9225_DISPLAY_CONTROL_1, 0x1017);
- ret = drm_gem_fb_vmap(fb, map, data);
- if (ret)
- goto out_exit;
-
- ili9225_fb_dirty(&data[0], fb, &rect);
+ ili9225_fb_dirty(&shadow_plane_state->data[0], fb, &rect);
- drm_gem_fb_vunmap(fb, map);
out_exit:
drm_dev_exit(idx);
}
diff --git a/drivers/gpu/drm/tiny/st7586.c b/drivers/gpu/drm/tiny/st7586.c
index 76b13cefc904f..ddaa82c2e58ae 100644
--- a/drivers/gpu/drm/tiny/st7586.c
+++ b/drivers/gpu/drm/tiny/st7586.c
@@ -153,19 +153,18 @@ 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 mipi_dbi_plane_state *mipi_dbi_plane_state =
+ to_mipi_dbi_plane_state(state);
+ struct drm_shadow_plane_state *shadow_plane_state =
+ &mipi_dbi_plane_state->shadow_plane_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 +172,10 @@ 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 mipi_dbi_plane_state *mipi_dbi_plane_state =
+ to_mipi_dbi_plane_state(plane_state);
+ struct drm_shadow_plane_state *shadow_plane_state =
+ &mipi_dbi_plane_state->shadow_plane_state;
struct drm_framebuffer *fb = plane_state->fb;
struct mipi_dbi *dbi = &dbidev->dbi;
struct drm_rect rect = {
@@ -181,8 +184,6 @@ 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 +243,7 @@ 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:
--
2.38.1
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