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Subject[PATCH v2 02/19] drm/atmel-hlcdc: Use the alpha format field in drm_format_info
Date
Now that the drm_format_info has a alpha field to tell if a format embeds
an alpha component in it, let's use it.

Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Reviewed-by: Daniel Vetter <daniel.vetter@intel.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
---
drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c | 24 +++---------------
1 file changed, 5 insertions(+), 19 deletions(-)

diff --git a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c
index 703c2d13603f..e18800ed7cd1 100644
--- a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c
+++ b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c
@@ -194,20 +194,6 @@ static int atmel_hlcdc_format_to_plane_mode(u32 format, u32 *mode)
return 0;
}

-static bool atmel_hlcdc_format_embeds_alpha(u32 format)
-{
- int i;
-
- for (i = 0; i < sizeof(format); i++) {
- char tmp = (format >> (8 * i)) & 0xff;
-
- if (tmp == 'A')
- return true;
- }
-
- return false;
-}
-
static u32 heo_downscaling_xcoef[] = {
0x11343311,
0x000000f7,
@@ -377,13 +363,13 @@ atmel_hlcdc_plane_update_general_settings(struct atmel_hlcdc_plane *plane,
{
unsigned int cfg = ATMEL_HLCDC_LAYER_DMA_BLEN_INCR16 | state->ahb_id;
const struct atmel_hlcdc_layer_desc *desc = plane->layer.desc;
- u32 format = state->base.fb->format->format;
+ const struct drm_format_info *format = state->base.fb->format;

/*
* Rotation optimization is not working on RGB888 (rotation is still
* working but without any optimization).
*/
- if (format == DRM_FORMAT_RGB888)
+ if (format->format == DRM_FORMAT_RGB888)
cfg |= ATMEL_HLCDC_LAYER_DMA_ROTDIS;

atmel_hlcdc_layer_write_cfg(&plane->layer, ATMEL_HLCDC_LAYER_DMA_CFG,
@@ -395,7 +381,7 @@ atmel_hlcdc_plane_update_general_settings(struct atmel_hlcdc_plane *plane,
cfg |= ATMEL_HLCDC_LAYER_OVR | ATMEL_HLCDC_LAYER_ITER2BL |
ATMEL_HLCDC_LAYER_ITER;

- if (atmel_hlcdc_format_embeds_alpha(format))
+ if (format->has_alpha)
cfg |= ATMEL_HLCDC_LAYER_LAEN;
else
cfg |= ATMEL_HLCDC_LAYER_GAEN |
@@ -566,7 +552,7 @@ atmel_hlcdc_plane_prepare_disc_area(struct drm_crtc_state *c_state)
ovl_state = drm_plane_state_to_atmel_hlcdc_plane_state(ovl_s);

if (!ovl_s->fb ||
- atmel_hlcdc_format_embeds_alpha(ovl_s->fb->format->format) ||
+ ovl_s->fb->format->has_alpha ||
ovl_state->alpha != 255)
continue;

@@ -769,7 +755,7 @@ static int atmel_hlcdc_plane_atomic_check(struct drm_plane *p,

if ((state->crtc_h != state->src_h || state->crtc_w != state->src_w) &&
(!desc->layout.memsize ||
- atmel_hlcdc_format_embeds_alpha(state->base.fb->format->format)))
+ state->base.fb->format->has_alpha))
return -EINVAL;

if (state->crtc_x < 0 || state->crtc_y < 0)
--
git-series 0.9.1
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