From 69c63e88ea9dc44382d508a7608495dec5eb69f9 Mon Sep 17 00:00:00 2001 From: Thomas Zimmermann Date: Fri, 2 Dec 2022 13:56:43 +0100 Subject: [PATCH] drm/mipi-dbi: Use shadow-plane mappings MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit 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 Reviewed-by: Noralf Trønnes Tested-by: Javier Martinez Canillas Tested-by: Noralf Trønnes # drm/tiny/mi0283qt Link: https://patchwork.freedesktop.org/patch/msgid/20221202125644.7917-8-tzimmermann@suse.de --- drivers/gpu/drm/drm_mipi_dbi.c | 25 +++++-------------------- drivers/gpu/drm/tiny/ili9225.c | 16 ++++------------ drivers/gpu/drm/tiny/st7586.c | 16 ++++------------ 3 files changed, 13 insertions(+), 44 deletions(-) diff --git a/drivers/gpu/drm/drm_mipi_dbi.c b/drivers/gpu/drm/drm_mipi_dbi.c index b808de6..0ef5e81 100644 --- a/drivers/gpu/drm/drm_mipi_dbi.c +++ b/drivers/gpu/drm/drm_mipi_dbi.c @@ -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); diff --git a/drivers/gpu/drm/tiny/ili9225.c b/drivers/gpu/drm/tiny/ili9225.c index a69aec8..0ba5177 100644 --- a/drivers/gpu/drm/tiny/ili9225.c +++ b/drivers/gpu/drm/tiny/ili9225.c @@ -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); diff --git a/drivers/gpu/drm/tiny/st7586.c b/drivers/gpu/drm/tiny/st7586.c index 76b13ce..53dca92 100644 --- a/drivers/gpu/drm/tiny/st7586.c +++ b/drivers/gpu/drm/tiny/st7586.c @@ -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: -- 2.7.4