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| author | Jyri Sarha <jsarha@ti.com> | 2016-11-15 23:57:42 +0200 |
|---|---|---|
| committer | Jyri Sarha <jsarha@ti.com> | 2016-11-30 14:19:44 +0200 |
| commit | 274c34dbe756d441e2c1925465569ef93d380541 (patch) | |
| tree | cb458362f11aa2132606ca9992873e3659891d21 /drivers/gpu/drm/tilcdc | |
| parent | e59f5af9fba2cfccd26ceed085b9c5e89c81f0ca (diff) | |
| download | linux-stable-274c34dbe756d441e2c1925465569ef93d380541.tar.gz linux-stable-274c34dbe756d441e2c1925465569ef93d380541.tar.bz2 linux-stable-274c34dbe756d441e2c1925465569ef93d380541.zip | |
drm/tilcdc: Load palette at the end of mode_set_nofb()
Load palette at the end of mode_set_nofb(). Moving the palette loading
to mode_set_nofb() saves us from storing and restoring of framebuffer
addresses in dma registers that were just recently written there.
Signed-off-by: Jyri Sarha <jsarha@ti.com>
Tested-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Diffstat (limited to 'drivers/gpu/drm/tilcdc')
| -rw-r--r-- | drivers/gpu/drm/tilcdc/tilcdc_crtc.c | 25 |
1 files changed, 5 insertions, 20 deletions
diff --git a/drivers/gpu/drm/tilcdc/tilcdc_crtc.c b/drivers/gpu/drm/tilcdc/tilcdc_crtc.c index f736a8970e8b..4472540d6bc0 100644 --- a/drivers/gpu/drm/tilcdc/tilcdc_crtc.c +++ b/drivers/gpu/drm/tilcdc/tilcdc_crtc.c @@ -121,15 +121,12 @@ static void set_scanout(struct drm_crtc *crtc, struct drm_framebuffer *fb) */ static void tilcdc_crtc_load_palette(struct drm_crtc *crtc) { - u32 dma_fb_base, dma_fb_ceiling, raster_ctl; struct tilcdc_crtc *tilcdc_crtc = to_tilcdc_crtc(crtc); struct drm_device *dev = crtc->dev; struct tilcdc_drm_private *priv = dev->dev_private; int ret; - dma_fb_base = tilcdc_read(dev, LCDC_DMA_FB_BASE_ADDR_0_REG); - dma_fb_ceiling = tilcdc_read(dev, LCDC_DMA_FB_CEILING_ADDR_0_REG); - raster_ctl = tilcdc_read(dev, LCDC_RASTER_CTRL_REG); + reinit_completion(&tilcdc_crtc->palette_loaded); /* Tell the LCDC where the palette is located. */ tilcdc_write(dev, LCDC_DMA_FB_BASE_ADDR_0_REG, @@ -164,11 +161,6 @@ static void tilcdc_crtc_load_palette(struct drm_crtc *crtc) tilcdc_clear(dev, LCDC_RASTER_CTRL_REG, LCDC_V1_PL_INT_ENA); else tilcdc_write(dev, LCDC_INT_ENABLE_CLR_REG, LCDC_V2_PL_INT_ENA); - - /* Restore the registers. */ - tilcdc_write(dev, LCDC_DMA_FB_BASE_ADDR_0_REG, dma_fb_base); - tilcdc_write(dev, LCDC_DMA_FB_CEILING_ADDR_0_REG, dma_fb_ceiling); - tilcdc_write(dev, LCDC_RASTER_CTRL_REG, raster_ctl); } static void tilcdc_crtc_enable_irqs(struct drm_device *dev) @@ -239,9 +231,6 @@ static void tilcdc_crtc_enable(struct drm_crtc *crtc) reset(crtc); - if (!completion_done(&tilcdc_crtc->palette_loaded)) - tilcdc_crtc_load_palette(crtc); - tilcdc_crtc_enable_irqs(dev); tilcdc_clear(dev, LCDC_DMA_CTRL_REG, LCDC_DUAL_FRAME_BUFFER_ENABLE); @@ -285,12 +274,6 @@ static void tilcdc_crtc_off(struct drm_crtc *crtc, bool shutdown) __func__); } - /* - * LCDC will not retain the palette when reset. Make sure it gets - * reloaded on tilcdc_crtc_enable(). - */ - reinit_completion(&tilcdc_crtc->palette_loaded); - drm_crtc_vblank_off(crtc); tilcdc_crtc_disable_irqs(dev); @@ -678,10 +661,12 @@ static void tilcdc_crtc_mode_set_nofb(struct drm_crtc *crtc) drm_framebuffer_reference(fb); - set_scanout(crtc, fb); - tilcdc_crtc_set_clk(crtc); + tilcdc_crtc_load_palette(crtc); + + set_scanout(crtc, fb); + crtc->hwmode = crtc->state->adjusted_mode; } |