Re: [PATCH RFC 5/5] drm/msm: dpu1: sm8550: move split clock controls to sspp entries
From: Dmitry Baryshkov
Date: Mon Oct 09 2023 - 13:10:14 EST
On 09/10/2023 19:36, Neil Armstrong wrote:
The SM8550 has the SSPP clk_ctrl in the SSPP registers, move them
out of the MDP top.
Signed-off-by: Neil Armstrong <neil.armstrong@xxxxxxxxxx>
---
.../gpu/drm/msm/disp/dpu1/catalog/dpu_9_0_sm8550.h | 35 ++++++++++------------
1 file changed, 15 insertions(+), 20 deletions(-)
diff --git a/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_9_0_sm8550.h b/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_9_0_sm8550.h
index 7bed819dfc39..527ec020fba4 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_9_0_sm8550.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_9_0_sm8550.h
@@ -24,16 +24,6 @@ static const struct dpu_mdp_cfg sm8550_mdp = {
.base = 0, .len = 0x494,
.features = BIT(DPU_MDP_PERIPH_0_REMOVED),
.clk_ctrls = {
- [DPU_CLK_CTRL_VIG0] = { .reg_off = 0x4330, .bit_off = 0 },
- [DPU_CLK_CTRL_VIG1] = { .reg_off = 0x6330, .bit_off = 0 },
- [DPU_CLK_CTRL_VIG2] = { .reg_off = 0x8330, .bit_off = 0 },
- [DPU_CLK_CTRL_VIG3] = { .reg_off = 0xa330, .bit_off = 0 },
- [DPU_CLK_CTRL_DMA0] = { .reg_off = 0x24330, .bit_off = 0 },
- [DPU_CLK_CTRL_DMA1] = { .reg_off = 0x26330, .bit_off = 0 },
- [DPU_CLK_CTRL_DMA2] = { .reg_off = 0x28330, .bit_off = 0 },
- [DPU_CLK_CTRL_DMA3] = { .reg_off = 0x2a330, .bit_off = 0 },
- [DPU_CLK_CTRL_DMA4] = { .reg_off = 0x2c330, .bit_off = 0 },
- [DPU_CLK_CTRL_DMA5] = { .reg_off = 0x2e330, .bit_off = 0 },
[DPU_CLK_CTRL_REG_DMA] = { .reg_off = 0x2bc, .bit_off = 20 },
Hmm, interesting. I even double-checked this. SSPP and WB have their own
clock registers now. But the REG_DMA uses the main area (0x2bc).
},
};
@@ -73,6 +63,11 @@ static const struct dpu_ctl_cfg sm8550_ctl[] = {
},
};
+static const struct dpu_clk_ctrl_reg sm8550_sspp_clk_ctrl = {
+ .reg_off = 0x330,
+ .bit_off = 0
+};
I don't think we even need this outside of dpu_hw_sspp. You can use
core_major_rev to check whether the driver should use global clocks or
per-SSPP / per-WB clocks register instead.
+
static const struct dpu_sspp_cfg sm8550_sspp[] = {
{
.name = "sspp_0", .id = SSPP_VIG0,
@@ -81,7 +76,7 @@ static const struct dpu_sspp_cfg sm8550_sspp[] = {
.sblk = &sm8550_vig_sblk_0,
.xin_id = 0,
.type = SSPP_TYPE_VIG,
- .clk_ctrl = DPU_CLK_CTRL_VIG0,
+ .clk_ctrl_reg = &sm8550_sspp_clk_ctrl,
}, {
.name = "sspp_1", .id = SSPP_VIG1,
.base = 0x6000, .len = 0x344,
@@ -89,7 +84,7 @@ static const struct dpu_sspp_cfg sm8550_sspp[] = {
.sblk = &sm8550_vig_sblk_1,
.xin_id = 4,
.type = SSPP_TYPE_VIG,
- .clk_ctrl = DPU_CLK_CTRL_VIG1,
+ .clk_ctrl_reg = &sm8550_sspp_clk_ctrl,
}, {
.name = "sspp_2", .id = SSPP_VIG2,
.base = 0x8000, .len = 0x344,
@@ -97,7 +92,7 @@ static const struct dpu_sspp_cfg sm8550_sspp[] = {
.sblk = &sm8550_vig_sblk_2,
.xin_id = 8,
.type = SSPP_TYPE_VIG,
- .clk_ctrl = DPU_CLK_CTRL_VIG2,
+ .clk_ctrl_reg = &sm8550_sspp_clk_ctrl,
}, {
.name = "sspp_3", .id = SSPP_VIG3,
.base = 0xa000, .len = 0x344,
@@ -105,7 +100,7 @@ static const struct dpu_sspp_cfg sm8550_sspp[] = {
.sblk = &sm8550_vig_sblk_3,
.xin_id = 12,
.type = SSPP_TYPE_VIG,
- .clk_ctrl = DPU_CLK_CTRL_VIG3,
+ .clk_ctrl_reg = &sm8550_sspp_clk_ctrl,
}, {
.name = "sspp_8", .id = SSPP_DMA0,
.base = 0x24000, .len = 0x344,
@@ -113,7 +108,7 @@ static const struct dpu_sspp_cfg sm8550_sspp[] = {
.sblk = &sdm845_dma_sblk_0,
.xin_id = 1,
.type = SSPP_TYPE_DMA,
- .clk_ctrl = DPU_CLK_CTRL_DMA0,
+ .clk_ctrl_reg = &sm8550_sspp_clk_ctrl,
}, {
.name = "sspp_9", .id = SSPP_DMA1,
.base = 0x26000, .len = 0x344,
@@ -121,7 +116,7 @@ static const struct dpu_sspp_cfg sm8550_sspp[] = {
.sblk = &sdm845_dma_sblk_1,
.xin_id = 5,
.type = SSPP_TYPE_DMA,
- .clk_ctrl = DPU_CLK_CTRL_DMA1,
+ .clk_ctrl_reg = &sm8550_sspp_clk_ctrl,
}, {
.name = "sspp_10", .id = SSPP_DMA2,
.base = 0x28000, .len = 0x344,
@@ -129,7 +124,7 @@ static const struct dpu_sspp_cfg sm8550_sspp[] = {
.sblk = &sdm845_dma_sblk_2,
.xin_id = 9,
.type = SSPP_TYPE_DMA,
- .clk_ctrl = DPU_CLK_CTRL_DMA2,
+ .clk_ctrl_reg = &sm8550_sspp_clk_ctrl,
}, {
.name = "sspp_11", .id = SSPP_DMA3,
.base = 0x2a000, .len = 0x344,
@@ -137,7 +132,7 @@ static const struct dpu_sspp_cfg sm8550_sspp[] = {
.sblk = &sdm845_dma_sblk_3,
.xin_id = 13,
.type = SSPP_TYPE_DMA,
- .clk_ctrl = DPU_CLK_CTRL_DMA3,
+ .clk_ctrl_reg = &sm8550_sspp_clk_ctrl,
}, {
.name = "sspp_12", .id = SSPP_DMA4,
.base = 0x2c000, .len = 0x344,
@@ -145,7 +140,7 @@ static const struct dpu_sspp_cfg sm8550_sspp[] = {
.sblk = &sm8550_dma_sblk_4,
.xin_id = 14,
.type = SSPP_TYPE_DMA,
- .clk_ctrl = DPU_CLK_CTRL_DMA4,
+ .clk_ctrl_reg = &sm8550_sspp_clk_ctrl,
}, {
.name = "sspp_13", .id = SSPP_DMA5,
.base = 0x2e000, .len = 0x344,
@@ -153,7 +148,7 @@ static const struct dpu_sspp_cfg sm8550_sspp[] = {
.sblk = &sm8550_dma_sblk_5,
.xin_id = 15,
.type = SSPP_TYPE_DMA,
- .clk_ctrl = DPU_CLK_CTRL_DMA5,
+ .clk_ctrl_reg = &sm8550_sspp_clk_ctrl,
},
};
--
With best wishes
Dmitry