[Freedreno] [PATCH 3/3] drm/msm/dpu: enable writeback on SM8450

Dmitry Baryshkov dmitry.baryshkov at linaro.org
Mon Oct 9 17:11:10 UTC 2023


Enable WB2 hardware block, enabling writeback support on this platform.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov at linaro.org>
---
 .../drm/msm/disp/dpu1/catalog/dpu_8_1_sm8450.h | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_8_1_sm8450.h b/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_8_1_sm8450.h
index d0214edcbb0e..9a3d1286d160 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_8_1_sm8450.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_8_1_sm8450.h
@@ -32,6 +32,7 @@ static const struct dpu_mdp_cfg sm8450_mdp = {
 		[DPU_CLK_CTRL_DMA1] = { .reg_off = 0x2b4, .bit_off = 8 },
 		[DPU_CLK_CTRL_DMA2] = { .reg_off = 0x2bc, .bit_off = 8 },
 		[DPU_CLK_CTRL_DMA3] = { .reg_off = 0x2c4, .bit_off = 8 },
+		[DPU_CLK_CTRL_WB2] = { .reg_off = 0x2bc, .bit_off = 16 },
 		[DPU_CLK_CTRL_REG_DMA] = { .reg_off = 0x2bc, .bit_off = 20 },
 	},
 };
@@ -326,6 +327,21 @@ static const struct dpu_dsc_cfg sm8450_dsc[] = {
 	},
 };
 
+static const struct dpu_wb_cfg sm8450_wb[] = {
+	{
+		.name = "wb_2", .id = WB_2,
+		.base = 0x65000, .len = 0x2c8,
+		.features = WB_SM8250_MASK,
+		.format_list = wb2_formats,
+		.num_formats = ARRAY_SIZE(wb2_formats),
+		.clk_ctrl = DPU_CLK_CTRL_WB2,
+		.xin_id = 6,
+		.vbif_idx = VBIF_RT,
+		.maxlinewidth = 4096,
+		.intr_wb_done = DPU_IRQ_IDX(MDP_SSPP_TOP0_INTR, 4),
+	},
+};
+
 static const struct dpu_intf_cfg sm8450_intf[] = {
 	{
 		.name = "intf_0", .id = INTF_0,
@@ -423,6 +439,8 @@ const struct dpu_mdss_cfg dpu_sm8450_cfg = {
 	.dsc = sm8450_dsc,
 	.merge_3d_count = ARRAY_SIZE(sm8450_merge_3d),
 	.merge_3d = sm8450_merge_3d,
+	.wb_count = ARRAY_SIZE(sm8450_wb),
+	.wb = sm8450_wb,
 	.intf_count = ARRAY_SIZE(sm8450_intf),
 	.intf = sm8450_intf,
 	.vbif_count = ARRAY_SIZE(sdm845_vbif),
-- 
2.39.2



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