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drm/rockchip: dsi2: havle dsc pps pic_width in dual channel dsi

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two dsc encoder slices which is equal to pic_width / slice_width
will also halve whith pic_width

 <-HxV->  <------------- H/2 x V -------------->  <-H x V->
          ┌───────┐    ┌───────┐   ┌───────────┐
          │  DSC0 ├───►│dsi0 tx├──►│lcd dsi0 rx│\ ┌───────┐
 ┌─────┐ /└───────┘    └───────┘   └───────────┘ \│       │
 │     │/                                        /│lcd DSC│
 │  VP │\ ┌───────┐    ┌───────┐   ┌───────────┐/ │       │
 └─────┘ \│  DSC1 ├───►│dsi1 tx├──►│lcd dsi1 rx│  └───────┘
          └───────┘    └───────┘   └───────────┘

Change-Id: I65e65f969f9b1e81bee1a7343b386f577255a2f5
Signed-off-by: Guochun Huang <hero.huang@rock-chips.com>
This commit is contained in:
Guochun Huang
2023-08-16 01:37:54 +00:00
committed by Tao Huang
parent e45322a926
commit 613e5c0710
1 changed files with 16 additions and 0 deletions
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16
drivers/gpu/drm/rockchip/dw-mipi-dsi2-rockchip.c
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@@ -1214,6 +1214,9 @@ static int dw_mipi_dsi2_get_dsc_params_from_sink(struct dw_mipi_dsi2 *dsi2,
dsi2->slave->dsc_enable = dsi2->dsc_enable;
}
if (!dsi2->dsc_enable)
return 0;
of_property_read_u32(np, "slice-width", &dsi2->slice_width);
of_property_read_u32(np, "slice-height", &dsi2->slice_height);
of_property_read_u8(np, "version-major", &dsi2->version_major);
@@ -1249,8 +1252,21 @@ static int dw_mipi_dsi2_get_dsc_params_from_sink(struct dw_mipi_dsi2 *dsi2,
len -= header->payload_length;
}
if (!pps) {
dev_err(dsi2->dev, "not found dsc pps definition\n");
return -EINVAL;
}
dsi2->pps = pps;
if (dsi2->slave) {
u16 pic_width = be16_to_cpu(pps->pic_width) / 2;
dsi2->pps->pic_width = cpu_to_be16(pic_width);
dev_info(dsi2->dev, "dsc pic_width change from %d to %d\n",
pic_width * 2, pic_width);
}
return 0;
}