This is a note to let you know that I've just added the patch titled
drm/msm/dpu: enable writeback on SM8450
to the 6.6-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
drm-msm-dpu-enable-writeback-on-sm8450.patch
and it can be found in the queue-6.6 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 909ed7bca949c74c5c8d4467b0e5637f7db05bf8
Author: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>
Date: Sun Dec 3 03:27:43 2023 +0300
drm/msm/dpu: enable writeback on SM8450
[ Upstream commit eaa647cdbf2e357b4a14903f2f1e47ed9c4f8df3 ]
Enable WB2 hardware block, enabling writeback support on this platform.
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>
Reviewed-by: Abhinav Kumar <quic_abhinavk@xxxxxxxxxxx>
Patchwork: https://patchwork.freedesktop.org/patch/570187/
Link: https://lore.kernel.org/r/20231203002743.1291956-4-dmitry.baryshkov@xxxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
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 1b12178dfbca..8a19cfa274de 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),
