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drm/sun4i: backend: Remove ARGB spoofing

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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.

Reviewed-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/965180afd8169ccaa848f061d16a2c1a9ec4d289.1518802627.git-series.maxime.ripard@bootlin.com
This commit is contained in:
Maxime Ripard 2018-02-16 18:39:36 +01:00
parent ded4f346ac
commit 35152d1159
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GPG key ID: D2B4C094214DAF74
1 changed files with 3 additions and 9 deletions
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12
drivers/gpu/drm/sun4i/sun4i_backend.c
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@ -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;
@ -191,8 +186,7 @@ int sun4i_backend_update_layer_formats(struct sun4i_backend *backend,
DRM_DEBUG_DRIVER("Switching display backend interlaced mode %s\n",
interlaced ? "on" : "off");
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;
@ -211,7 +205,7 @@ 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;