This is a note to let you know that I've just added the patch titled
drm/msm/dpu: fix maxlinewidth for writeback block
to the 5.19-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-fix-maxlinewidth-for-writeback-block.patch
and it can be found in the queue-5.19 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 12bb3b5428c5eb0740ac7eda7c394ba0bab607fd
Author: Abhinav Kumar <quic_abhinavk@xxxxxxxxxxx>
Date: Thu Jun 16 12:01:23 2022 -0700
drm/msm/dpu: fix maxlinewidth for writeback block
[ Upstream commit a370cc392e075de5a4b7f3fb27cdeec0d70b5893 ]
Writeback block for sm8250 was using the default maxlinewidth
of 2048. But this is not right as it supports upto 4096.
This should have no effect on most resolutions as we are
still limiting upto maxlinewidth of SSPP for adding the modes.
Fix the maxlinewidth for writeback block on sm8250.
changes in v3:
- correct the Fixes tag
Fixes: 53324b99bd7b ("drm/msm/dpu: add writeback blocks to the sm8250 DPU catalog")
Signed-off-by: Abhinav Kumar <quic_abhinavk@xxxxxxxxxxx>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>
Patchwork: https://patchwork.freedesktop.org/patch/489887/
Link: https://lore.kernel.org/r/1655406084-17407-2-git-send-email-quic_abhinavk@xxxxxxxxxxx
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
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 400ebceb56bb..dd7537e32f88 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c
@@ -1285,7 +1285,7 @@ static const struct dpu_intf_cfg qcm2290_intf[] = {
* Writeback blocks config
*************************************************************/
#define WB_BLK(_name, _id, _base, _features, _clk_ctrl, \
- __xin_id, vbif_id, _reg, _wb_done_bit) \
+ __xin_id, vbif_id, _reg, _max_linewidth, _wb_done_bit) \
{ \
.name = _name, .id = _id, \
.base = _base, .len = 0x2c8, \
@@ -1295,13 +1295,13 @@ static const struct dpu_intf_cfg qcm2290_intf[] = {
.clk_ctrl = _clk_ctrl, \
.xin_id = __xin_id, \
.vbif_idx = vbif_id, \
- .maxlinewidth = DEFAULT_DPU_LINE_WIDTH, \
+ .maxlinewidth = _max_linewidth, \
.intr_wb_done = DPU_IRQ_IDX(_reg, _wb_done_bit) \
}
static const struct dpu_wb_cfg sm8250_wb[] = {
WB_BLK("wb_2", WB_2, 0x65000, WB_SM8250_MASK, DPU_CLK_CTRL_WB2, 6,
- VBIF_RT, MDP_SSPP_TOP0_INTR, 4),
+ VBIF_RT, MDP_SSPP_TOP0_INTR, 4096, 4),
};
/*************************************************************
