UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

drm/amd/display: fix 12bpc truncate to 10bpc 

Signed-off-by: Charlene Liu <charlene.liu@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Charlene Liu 2017-02-17 13:51:32 -05:00 committed by Alex Deucher
parent 87b58768ec
commit 896b3cb3f4
1 changed files with 9 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
drivers/gpu/drm/amd/display/dc/dce/dce_opp.c
View File

@ -710,32 +710,32 @@ void dce110_opp_set_dyn_expansion(
enum signal_type signal) enum signal_type signal)
{ {
struct dce110_opp *opp110 = TO_DCE110_OPP(opp); struct dce110_opp *opp110 = TO_DCE110_OPP(opp);
bool enable_dyn_exp = false;
REG_UPDATE_2(FMT_DYNAMIC_EXP_CNTL, REG_UPDATE_2(FMT_DYNAMIC_EXP_CNTL,
FMT_DYNAMIC_EXP_EN, 0, FMT_DYNAMIC_EXP_EN, 0,
FMT_DYNAMIC_EXP_MODE, 0); FMT_DYNAMIC_EXP_MODE, 0);
/* From HW programming guide:
FMT_DYNAMIC_EXP_EN = 0 for limited RGB or YCbCr output
FMT_DYNAMIC_EXP_EN = 1 for RGB full range only*/
if (color_sp == COLOR_SPACE_SRGB)
enable_dyn_exp = true;
/*00 - 10-bit -> 12-bit dynamic expansion*/ /*00 - 10-bit -> 12-bit dynamic expansion*/
/*01 - 8-bit -> 12-bit dynamic expansion*/ /*01 - 8-bit -> 12-bit dynamic expansion*/
if (signal == SIGNAL_TYPE_HDMI_TYPE_A) { if (signal == SIGNAL_TYPE_HDMI_TYPE_A ||
signal == SIGNAL_TYPE_DISPLAY_PORT ||
signal == SIGNAL_TYPE_DISPLAY_PORT_MST) {
switch (color_dpth) { switch (color_dpth) {
case COLOR_DEPTH_888: case COLOR_DEPTH_888:
REG_UPDATE_2(FMT_DYNAMIC_EXP_CNTL, REG_UPDATE_2(FMT_DYNAMIC_EXP_CNTL,
FMT_DYNAMIC_EXP_EN, enable_dyn_exp ? 1:0, FMT_DYNAMIC_EXP_EN, 1,
FMT_DYNAMIC_EXP_MODE, 1); FMT_DYNAMIC_EXP_MODE, 1);
break; break;
case COLOR_DEPTH_101010: case COLOR_DEPTH_101010:
REG_UPDATE_2(FMT_DYNAMIC_EXP_CNTL, REG_UPDATE_2(FMT_DYNAMIC_EXP_CNTL,
FMT_DYNAMIC_EXP_EN, enable_dyn_exp ? 1:0, FMT_DYNAMIC_EXP_EN, 1,
FMT_DYNAMIC_EXP_MODE, 0); FMT_DYNAMIC_EXP_MODE, 0);
break; break;
case COLOR_DEPTH_121212: case COLOR_DEPTH_121212:
REG_UPDATE_2(
FMT_DYNAMIC_EXP_CNTL,
FMT_DYNAMIC_EXP_EN, 1,/*otherwise last two bits are zero*/
FMT_DYNAMIC_EXP_MODE, 0);
break; break;
default: default:
break; break;