[RFC PATCH 3/7] drm/msm/dpu: Disable MDP vsync source selection on DPU 5.0.0 and above
Marijn Suijten
marijn.suijten at somainline.org
Sat Dec 31 21:50:02 UTC 2022
Since hardware revision 5.0.0 the TE configuration moved out of the
PINGPONG block into the INTF block, including vsync source selection
that was previously part of MDP top. Writing to the MDP_VSYNC_SEL
register has no effect anymore and is omitted downstream via the
DPU/SDE_MDP_VSYNC_SEL feature flag. This flag is only added to INTF
blocks used by hardware prior to 5.0.0.
The code that writes to these registers in the INTF block will follow in
subsequent patches.
Signed-off-by: Marijn Suijten <marijn.suijten at somainline.org>
---
.../gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c | 33 ++++++++++--
.../gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h | 1 +
drivers/gpu/drm/msm/disp/dpu1/dpu_hw_top.c | 52 +++++++++++++------
3 files changed, 66 insertions(+), 20 deletions(-)
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c
index 39d4b293710c..1cfe94494135 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c
@@ -407,7 +407,7 @@ static const struct dpu_mdp_cfg msm8998_mdp[] = {
{
.name = "top_0", .id = MDP_TOP,
.base = 0x0, .len = 0x458,
- .features = 0,
+ .features = BIT(DPU_MDP_VSYNC_SEL),
.highest_bank_bit = 0x2,
.clk_ctrls[DPU_CLK_CTRL_VIG0] = {
.reg_off = 0x2AC, .bit_off = 0},
@@ -436,7 +436,7 @@ static const struct dpu_mdp_cfg sdm845_mdp[] = {
{
.name = "top_0", .id = MDP_TOP,
.base = 0x0, .len = 0x45C,
- .features = BIT(DPU_MDP_AUDIO_SELECT),
+ .features = BIT(DPU_MDP_AUDIO_SELECT) | BIT(DPU_MDP_VSYNC_SEL),
.highest_bank_bit = 0x2,
.clk_ctrls[DPU_CLK_CTRL_VIG0] = {
.reg_off = 0x2AC, .bit_off = 0},
@@ -512,6 +512,31 @@ static const struct dpu_mdp_cfg sm6115_mdp[] = {
},
};
+static const struct dpu_mdp_cfg sdm8150_mdp[] = {
+ {
+ .name = "top_0", .id = MDP_TOP,
+ .base = 0x0, .len = 0x45C,
+ .features = BIT(DPU_MDP_AUDIO_SELECT),
+ .highest_bank_bit = 0x2,
+ .clk_ctrls[DPU_CLK_CTRL_VIG0] = {
+ .reg_off = 0x2AC, .bit_off = 0},
+ .clk_ctrls[DPU_CLK_CTRL_VIG1] = {
+ .reg_off = 0x2B4, .bit_off = 0},
+ .clk_ctrls[DPU_CLK_CTRL_VIG2] = {
+ .reg_off = 0x2BC, .bit_off = 0},
+ .clk_ctrls[DPU_CLK_CTRL_VIG3] = {
+ .reg_off = 0x2C4, .bit_off = 0},
+ .clk_ctrls[DPU_CLK_CTRL_DMA0] = {
+ .reg_off = 0x2AC, .bit_off = 8},
+ .clk_ctrls[DPU_CLK_CTRL_DMA1] = {
+ .reg_off = 0x2B4, .bit_off = 8},
+ .clk_ctrls[DPU_CLK_CTRL_CURSOR0] = {
+ .reg_off = 0x2BC, .bit_off = 8},
+ .clk_ctrls[DPU_CLK_CTRL_CURSOR1] = {
+ .reg_off = 0x2C4, .bit_off = 8},
+ },
+};
+
static const struct dpu_mdp_cfg sm8250_mdp[] = {
{
.name = "top_0", .id = MDP_TOP,
@@ -1901,8 +1926,8 @@ static const struct dpu_mdss_cfg sm6115_dpu_cfg = {
static const struct dpu_mdss_cfg sm8150_dpu_cfg = {
.caps = &sm8150_dpu_caps,
- .mdp_count = ARRAY_SIZE(sdm845_mdp),
- .mdp = sdm845_mdp,
+ .mdp_count = ARRAY_SIZE(sdm8150_mdp),
+ .mdp = sdm8150_mdp,
.ctl_count = ARRAY_SIZE(sm8150_ctl),
.ctl = sm8150_ctl,
.sspp_count = ARRAY_SIZE(sdm845_sspp),
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h
index 3b645d5aa9aa..e0e153889ab7 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h
@@ -93,6 +93,7 @@ enum {
DPU_MDP_UBWC_1_0,
DPU_MDP_UBWC_1_5,
DPU_MDP_AUDIO_SELECT,
+ DPU_MDP_VSYNC_SEL,
DPU_MDP_MAX
};
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_top.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_top.c
index c3110a25a30d..2e699c9ad13c 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_top.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_top.c
@@ -151,28 +151,16 @@ static void dpu_hw_get_danger_status(struct dpu_hw_mdp *mdp,
status->sspp[SSPP_CURSOR1] = (value >> 26) & 0x3;
}
-static void dpu_hw_setup_vsync_source(struct dpu_hw_mdp *mdp,
+static void dpu_hw_setup_vsync_source_v1(struct dpu_hw_mdp *mdp,
struct dpu_vsync_source_cfg *cfg)
{
struct dpu_hw_blk_reg_map *c;
- u32 reg, wd_load_value, wd_ctl, wd_ctl2, i;
- static const u32 pp_offset[PINGPONG_MAX] = {0xC, 0x8, 0x4, 0x13, 0x18};
+ u32 reg, wd_load_value, wd_ctl, wd_ctl2;
- if (!mdp || !cfg || (cfg->pp_count > ARRAY_SIZE(cfg->ppnumber)))
+ if (!mdp || !cfg)
return;
c = &mdp->hw;
- reg = DPU_REG_READ(c, MDP_VSYNC_SEL);
- for (i = 0; i < cfg->pp_count; i++) {
- int pp_idx = cfg->ppnumber[i] - PINGPONG_0;
-
- if (pp_idx >= ARRAY_SIZE(pp_offset))
- continue;
-
- reg &= ~(0xf << pp_offset[pp_idx]);
- reg |= (cfg->vsync_source & 0xf) << pp_offset[pp_idx];
- }
- DPU_REG_WRITE(c, MDP_VSYNC_SEL, reg);
if (cfg->vsync_source >= DPU_VSYNC_SOURCE_WD_TIMER_4 &&
cfg->vsync_source <= DPU_VSYNC_SOURCE_WD_TIMER_0) {
@@ -219,6 +207,33 @@ static void dpu_hw_setup_vsync_source(struct dpu_hw_mdp *mdp,
}
}
+static void dpu_hw_setup_vsync_source(struct dpu_hw_mdp *mdp,
+ struct dpu_vsync_source_cfg *cfg)
+{
+ struct dpu_hw_blk_reg_map *c;
+ u32 reg, i;
+ static const u32 pp_offset[PINGPONG_MAX] = {0xC, 0x8, 0x4, 0x13, 0x18};
+
+ if (!mdp || !cfg || (cfg->pp_count > ARRAY_SIZE(cfg->ppnumber)))
+ return;
+
+ c = &mdp->hw;
+
+ reg = DPU_REG_READ(c, MDP_VSYNC_SEL);
+ for (i = 0; i < cfg->pp_count; i++) {
+ int pp_idx = cfg->ppnumber[i] - PINGPONG_0;
+
+ if (pp_idx >= ARRAY_SIZE(pp_offset))
+ continue;
+
+ reg &= ~(0xf << pp_offset[pp_idx]);
+ reg |= (cfg->vsync_source & 0xf) << pp_offset[pp_idx];
+ }
+ DPU_REG_WRITE(c, MDP_VSYNC_SEL, reg);
+
+ dpu_hw_setup_vsync_source_v1(mdp, cfg);
+}
+
static void dpu_hw_get_safe_status(struct dpu_hw_mdp *mdp,
struct dpu_danger_safe_status *status)
{
@@ -266,7 +281,12 @@ static void _setup_mdp_ops(struct dpu_hw_mdp_ops *ops,
ops->setup_split_pipe = dpu_hw_setup_split_pipe;
ops->setup_clk_force_ctrl = dpu_hw_setup_clk_force_ctrl;
ops->get_danger_status = dpu_hw_get_danger_status;
- ops->setup_vsync_source = dpu_hw_setup_vsync_source;
+
+ if (cap & BIT(DPU_MDP_VSYNC_SEL))
+ ops->setup_vsync_source = dpu_hw_setup_vsync_source;
+ else
+ ops->setup_vsync_source = dpu_hw_setup_vsync_source_v1;
+
ops->get_safe_status = dpu_hw_get_safe_status;
if (cap & BIT(DPU_MDP_AUDIO_SELECT))
--
2.39.0
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