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authorVincent Abriou <vincent.abriou@st.com>2015-10-22 10:35:50 +0200
committerVincent Abriou <vincent.abriou@st.com>2015-11-03 13:04:55 +0100
commit5260fb5b33ffad7b3c1cd84dc260f4d51ef453c0 (patch)
tree1f85537d3c5baa7d45a64ceba2a705766d7a5fcc /drivers/gpu
parentb5d34a272d37c08612aaea9601ddd311757fd149 (diff)
downloadlwn-5260fb5b33ffad7b3c1cd84dc260f4d51ef453c0.tar.gz
lwn-5260fb5b33ffad7b3c1cd84dc260f4d51ef453c0.zip
drm/sti: set mixer background color through module param
Add bkgcolor module parameter that allow to change the background color of the mixer. It can be set with an RGB value coded as 0xRRGGBB. The default value is black. Signed-off-by: Vincent Abriou <vincent.abriou@st.com> Signed-off-by: Nicolas VANHAELEWYN <nicolas.vanhaelewyn@st.com>
Diffstat (limited to 'drivers/gpu')
-rw-r--r--drivers/gpu/drm/sti/sti_mixer.c13
1 files changed, 8 insertions, 5 deletions
diff --git a/drivers/gpu/drm/sti/sti_mixer.c b/drivers/gpu/drm/sti/sti_mixer.c
index 4c18b50d71c5..49db835dce03 100644
--- a/drivers/gpu/drm/sti/sti_mixer.c
+++ b/drivers/gpu/drm/sti/sti_mixer.c
@@ -10,6 +10,11 @@
#include "sti_mixer.h"
#include "sti_vtg.h"
+/* Module parameter to set the background color of the mixer */
+static unsigned int bkg_color = 0x000000;
+MODULE_PARM_DESC(bkgcolor, "Value of the background color 0xRRGGBB");
+module_param_named(bkgcolor, bkg_color, int, 0644);
+
/* Identity: G=Y , B=Cb , R=Cr */
static const u32 mixerColorSpaceMatIdentity[] = {
0x10000000, 0x00000000, 0x10000000, 0x00001000,
@@ -80,11 +85,9 @@ void sti_mixer_set_background_status(struct sti_mixer *mixer, bool enable)
}
static void sti_mixer_set_background_color(struct sti_mixer *mixer,
- u8 red, u8 green, u8 blue)
+ unsigned int rgb)
{
- u32 val = (red << 16) | (green << 8) | blue;
-
- sti_mixer_reg_write(mixer, GAM_MIXER_BKC, val);
+ sti_mixer_reg_write(mixer, GAM_MIXER_BKC, rgb);
}
static void sti_mixer_set_background_area(struct sti_mixer *mixer,
@@ -174,7 +177,7 @@ int sti_mixer_active_video_area(struct sti_mixer *mixer,
sti_mixer_reg_write(mixer, GAM_MIXER_AVO, ydo << 16 | xdo);
sti_mixer_reg_write(mixer, GAM_MIXER_AVS, yds << 16 | xds);
- sti_mixer_set_background_color(mixer, 0xFF, 0, 0);
+ sti_mixer_set_background_color(mixer, bkg_color);
sti_mixer_set_background_area(mixer, mode);
sti_mixer_set_background_status(mixer, true);