diff options
| author | Thomas Zimmermann <tzimmermann@suse.de> | 2022-12-02 15:56:44 +0300 |
|---|---|---|
| committer | Thomas Zimmermann <tzimmermann@suse.de> | 2022-12-05 16:21:18 +0300 |
| commit | 3ea44105bd4b6269ea87d10dc3693a71164ee0df (patch) | |
| tree | 60ecccd001209d83135de7b505d0a30a978fbc69 /drivers/gpu/drm/drm_mipi_dbi.c | |
| parent | 69c63e88ea9dc44382d508a7608495dec5eb69f9 (diff) | |
| download | linux-3ea44105bd4b6269ea87d10dc3693a71164ee0df.tar.xz | |
drm/mipi-dbi: Move drm_dev_{enter, exit}() out from fb_dirty functions
Call drm_dev_enter() and drm_dev_exit() in the outer-most callbacks
of the modesetting pipeline. If drm_dev_enter() fails, the driver can
thus avoid unnecessary work.
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/20221202125644.7917-9-tzimmermann@suse.de
Diffstat (limited to 'drivers/gpu/drm/drm_mipi_dbi.c')
| -rw-r--r-- | drivers/gpu/drm/drm_mipi_dbi.c | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/drivers/gpu/drm/drm_mipi_dbi.c b/drivers/gpu/drm/drm_mipi_dbi.c index 0ef5e81ba5e1..eb27d000bcfb 100644 --- a/drivers/gpu/drm/drm_mipi_dbi.c +++ b/drivers/gpu/drm/drm_mipi_dbi.c @@ -259,13 +259,10 @@ static void mipi_dbi_fb_dirty(struct iosys_map *src, struct drm_framebuffer *fb, unsigned int width = rect->x2 - rect->x1; struct mipi_dbi *dbi = &dbidev->dbi; bool swap = dbi->swap_bytes; - int idx, ret = 0; + int ret = 0; bool full; void *tr; - if (!drm_dev_enter(fb->dev, &idx)) - return; - full = width == fb->width && height == fb->height; DRM_DEBUG_KMS("Flushing [FB:%d] " DRM_RECT_FMT "\n", fb->base.id, DRM_RECT_ARG(rect)); @@ -288,8 +285,6 @@ static void mipi_dbi_fb_dirty(struct iosys_map *src, struct drm_framebuffer *fb, err_msg: if (ret) drm_err_once(fb->dev, "Failed to update display %d\n", ret); - - drm_dev_exit(idx); } /** @@ -325,6 +320,7 @@ void mipi_dbi_pipe_update(struct drm_simple_display_pipe *pipe, 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 idx; if (!pipe->crtc.state->active) return; @@ -332,8 +328,13 @@ void mipi_dbi_pipe_update(struct drm_simple_display_pipe *pipe, if (WARN_ON(!fb)) return; + if (!drm_dev_enter(fb->dev, &idx)) + return; + if (drm_atomic_helper_damage_merged(old_state, state, &rect)) mipi_dbi_fb_dirty(&shadow_plane_state->data[0], fb, &rect); + + drm_dev_exit(idx); } EXPORT_SYMBOL(mipi_dbi_pipe_update); |