[PATCH 19/19] drm/sun4i: backend: Remove ARGB spoofing

Maxime Ripard
2018-01-09T10:56:38Z

We've had some code for quite some time to prevent the alpha bug from
happening on the lowest primary plane. Since we now check for this in our
atomic_check, we can simply remove it.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
---
drivers/gpu/drm/sun4i/sun4i_backend.c | 12 +++---------
1 file changed, 3 insertions(+), 9 deletions(-)

diff --git a/drivers/gpu/drm/sun4i/sun4i_backend.c b/drivers/gpu/drm/sun4i/sun4i_backend.c
index ec47098bfdb2..15a7bce27412 100644
--- a/drivers/gpu/drm/sun4i/sun4i_backend.c
+++ b/drivers/gpu/drm/sun4i/sun4i_backend.c
@@ -92,13 +92,8 @@ void sun4i_backend_layer_enable(struct sun4i_backend *backend,
SUN4I_BACKEND_MODCTL_LAY_EN(layer), val);
}

-static int sun4i_backend_drm_format_to_layer(struct drm_plane *plane,
- u32 format, u32 *mode)
+static int sun4i_backend_drm_format_to_layer(u32 format, u32 *mode)
{
- if (plane && (plane->type == DRM_PLANE_TYPE_PRIMARY) &&
- (format == DRM_FORMAT_ARGB8888))
- format = DRM_FORMAT_XRGB8888;
-
switch (format) {
case DRM_FORMAT_ARGB8888:
*mode = SUN4I_BACKEND_LAY_FBFMT_ARGB8888;
@@ -200,8 +195,7 @@ int sun4i_backend_update_layer_formats(struct sun4i_backend *backend,
SUN4I_BACKEND_ATTCTL_REG0_LAY_GLBALPHA_EN,
val);

- ret = sun4i_backend_drm_format_to_layer(plane, fb->format->format,
- &val);
+ ret = sun4i_backend_drm_format_to_layer(fb->format->format, &val);
if (ret) {
DRM_DEBUG_DRIVER("Invalid format\n");
return ret;
@@ -220,7 +214,7 @@ int sun4i_backend_update_layer_frontend(struct sun4i_backend *backend,
u32 val;
int ret;

- ret = sun4i_backend_drm_format_to_layer(NULL, fmt, &val);
+ ret = sun4i_backend_drm_format_to_layer(fmt, &val);
if (ret) {
DRM_DEBUG_DRIVER("Invalid format\n");
return ret;
--
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