linux-kernel - [PATCH] drm/msm/dpu: Add writeback support for SM6150

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Message-ID: <20250106-add-writeback-support-for-sm6150-v1-1-1d2d69fc4bae@quicinc.com>
Date: Mon, 6 Jan 2025 14:39:09 +0800
From: Fange Zhang <quic_fangez@...cinc.com>
To: Rob Clark <robdclark@...il.com>,
        Abhinav Kumar
	<quic_abhinavk@...cinc.com>,
        Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
        Sean Paul <sean@...rly.run>,
        Marijn Suijten <marijn.suijten@...ainline.org>,
        David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>
CC: <linux-arm-msm@...r.kernel.org>, <dri-devel@...ts.freedesktop.org>,
        <freedreno@...ts.freedesktop.org>, <linux-kernel@...r.kernel.org>,
        Li Liu
	<quic_lliu6@...cinc.com>,
        Xiangxu Yin <quic_xiangxuy@...cinc.com>,
        "Fange
 Zhang" <quic_fangez@...cinc.com>
Subject: [PATCH] drm/msm/dpu: Add writeback support for SM6150

On the SM6150 platform there is WB_2 block. Add it to the SM6150 catalog.

Signed-off-by: Fange Zhang <quic_fangez@...cinc.com>
---
A followup patch to add writeback configuration for the SM6150 catalog
---
 drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_5_3_sm6150.h | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_5_3_sm6150.h b/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_5_3_sm6150.h
index 621a2140f675fa28b3a7fcd8573e59b306cd6832..6d32deead77728264b6de6d5fd2843a81afdf355 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_5_3_sm6150.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_5_3_sm6150.h
@@ -27,6 +27,7 @@ static const struct dpu_mdp_cfg sm6150_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 = 0x3b8, .bit_off = 24 },
 	},
 };
 
@@ -164,6 +165,21 @@ static const struct dpu_pingpong_cfg sm6150_pp[] = {
 	},
 };
 
+static const struct dpu_wb_cfg sm6150_wb[] = {
+	{
+		.name = "wb_2", .id = WB_2,
+		.base = 0x66000, .len = 0x2c8,
+		.features = WB_SM8250_MASK,
+		.format_list = wb2_formats_rgb,
+		.num_formats = ARRAY_SIZE(wb2_formats_rgb),
+		.clk_ctrl = DPU_CLK_CTRL_WB2,
+		.xin_id = 6,
+		.vbif_idx = VBIF_RT,
+		.maxlinewidth = 2160,
+		.intr_wb_done = DPU_IRQ_IDX(MDP_SSPP_TOP0_INTR, 4),
+	},
+};
+
 static const struct dpu_intf_cfg sm6150_intf[] = {
 	{
 		.name = "intf_0", .id = INTF_0,
@@ -244,6 +260,8 @@ const struct dpu_mdss_cfg dpu_sm6150_cfg = {
 	.dspp = sm6150_dspp,
 	.pingpong_count = ARRAY_SIZE(sm6150_pp),
 	.pingpong = sm6150_pp,
+	.wb_count = ARRAY_SIZE(sm6150_wb),
+	.wb = sm6150_wb,
 	.intf_count = ARRAY_SIZE(sm6150_intf),
 	.intf = sm6150_intf,
 	.vbif_count = ARRAY_SIZE(sdm845_vbif),

---
base-commit: 8155b4ef3466f0e289e8fcc9e6e62f3f4dceeac2
change-id: 20250106-add-writeback-support-for-sm6150-ba7657196ea8

Best regards,
-- 
Fange Zhang <quic_fangez@...cinc.com>