mirrors/linux
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2026-05-01 01:14:19 -04:00
Code Issues Packages Projects Releases Wiki Activity

drm/msm/disp/dpu1: Add support for DSC in pingpong block

Browse Source 
In SDM845, DSC can be enabled by writing to pingpong block registers, so
add support for DSC in hw_pp

Reviewed-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Patchwork: https://patchwork.freedesktop.org/patch/480914/
Link: https://lore.kernel.org/r/20220406094031.1027376-5-vkoul@kernel.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
This commit is contained in:
Vinod Koul
2022-04-06 15:10:21 +05:30
committed by Dmitry Baryshkov
parent c110cfd175
commit 893d698203
2 changed files with 46 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

32
drivers/gpu/drm/msm/disp/dpu1/dpu_hw_pingpong.c
View File

@@ -28,6 +28,9 @@
#define PP_FBC_MODE 0x034
#define PP_FBC_BUDGET_CTL 0x038
#define PP_FBC_LOSSY_MODE 0x03C
#define PP_DSC_MODE 0x0a0
#define PP_DCE_DATA_IN_SWAP 0x0ac
#define PP_DCE_DATA_OUT_SWAP 0x0c8
#define PP_DITHER_EN 0x000
#define PP_DITHER_BITDEPTH 0x004
@@ -245,6 +248,32 @@ static u32 dpu_hw_pp_get_line_count(struct dpu_hw_pingpong *pp)
return line;
}
static int dpu_hw_pp_dsc_enable(struct dpu_hw_pingpong *pp)
{
struct dpu_hw_blk_reg_map *c = &pp->hw;
DPU_REG_WRITE(c, PP_DSC_MODE, 1);
return 0;
}
static void dpu_hw_pp_dsc_disable(struct dpu_hw_pingpong *pp)
{
struct dpu_hw_blk_reg_map *c = &pp->hw;
DPU_REG_WRITE(c, PP_DSC_MODE, 0);
}
static int dpu_hw_pp_setup_dsc(struct dpu_hw_pingpong *pp)
{
struct dpu_hw_blk_reg_map *pp_c = &pp->hw;
int data;
data = DPU_REG_READ(pp_c, PP_DCE_DATA_OUT_SWAP);
data |= BIT(18); /* endian flip */
DPU_REG_WRITE(pp_c, PP_DCE_DATA_OUT_SWAP, data);
return 0;
}
static void _setup_pingpong_ops(struct dpu_hw_pingpong *c,
unsigned long features)
{
@@ -256,6 +285,9 @@ static void _setup_pingpong_ops(struct dpu_hw_pingpong *c,
c->ops.get_autorefresh = dpu_hw_pp_get_autorefresh_config;
c->ops.poll_timeout_wr_ptr = dpu_hw_pp_poll_timeout_wr_ptr;
c->ops.get_line_count = dpu_hw_pp_get_line_count;
c->ops.setup_dsc = dpu_hw_pp_setup_dsc;
c->ops.enable_dsc = dpu_hw_pp_dsc_enable;
c->ops.disable_dsc = dpu_hw_pp_dsc_disable;
if (test_bit(DPU_PINGPONG_DITHER, &features))
c->ops.setup_dither = dpu_hw_pp_setup_dither;

14
drivers/gpu/drm/msm/disp/dpu1/dpu_hw_pingpong.h
View File

@@ -124,6 +124,20 @@ struct dpu_hw_pingpong_ops {
*/
void (*setup_dither)(struct dpu_hw_pingpong *pp,
struct dpu_hw_dither_cfg *cfg);
/**
* Enable DSC
*/
int (*enable_dsc)(struct dpu_hw_pingpong *pp);
/**
* Disable DSC
*/
void (*disable_dsc)(struct dpu_hw_pingpong *pp);
/**
* Setup DSC
*/
int (*setup_dsc)(struct dpu_hw_pingpong *pp);
};
struct dpu_hw_merge_3d;