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disp: msm: dsi: add widebus support for DSI

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From Lahaina onwards, for compressed DSI output, widebus should be enabled.
In widebus mode, 6 bytes of data are transmitted per pclk.
For uncompressed output, widebus must be disabled to transmit 3 bytes
of uncompressed data per pclk.

Change-Id: I7fc0bdb2e1678152d57b4cbb8295063a2ba8ae73
Signed-off-by: Rajkumar Subbiah <rsubbia@codeaurora.org>
This commit is contained in:
Rajkumar Subbiah
2020-03-03 17:34:20 -05:00
parent c0d4857a81
commit 56e041919c
10 changed files with 96 additions and 25 deletions
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18
msm/dsi/dsi_panel.c
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@@ -728,6 +728,10 @@ static int dsi_panel_parse_timing(struct dsi_mode_info *mode,
mode->clk_rate_hz = !rc ? tmp64 : 0;
display_mode->priv_info->clk_rate_hz = mode->clk_rate_hz;
mode->pclk_scale.numer = 1;
mode->pclk_scale.denom = 1;
display_mode->priv_info->pclk_scale = mode->pclk_scale;
rc = utils->read_u32(utils->data, "qcom,mdss-mdp-transfer-time-us",
&mode->mdp_transfer_time_us);
if (!rc)
@@ -2416,8 +2420,15 @@ static int dsi_panel_parse_dsc_params(struct dsi_display_mode *mode,
goto error;
}
priv_info->pclk_scale.numer =
priv_info->dsc.config.bits_per_pixel >> 4;
priv_info->pclk_scale.denom = msm_get_src_bpc(
priv_info->dsc.chroma_format,
priv_info->dsc.config.bits_per_component);
mode->timing.dsc_enabled = true;
mode->timing.dsc = &priv_info->dsc;
mode->timing.pclk_scale = priv_info->pclk_scale;
error:
return rc;
@@ -2595,8 +2606,15 @@ static int dsi_panel_parse_vdc_params(struct dsi_display_mode *mode,
goto error;
}
priv_info->pclk_scale.numer =
priv_info->vdc.bits_per_pixel >> 4;
priv_info->pclk_scale.denom = msm_get_src_bpc(
priv_info->vdc.chroma_format,
priv_info->vdc.bits_per_component);
mode->timing.vdc_enabled = true;
mode->timing.vdc = &priv_info->vdc;
mode->timing.pclk_scale = priv_info->pclk_scale;
error:
return rc;