diff options
Diffstat (limited to 'target/linux/layerscape/patches-5.4/805-display-0031-Revert-drm-imx-hdp-fix-issue-with-non-SCDC-HDMI-sink.patch')
| -rw-r--r-- | target/linux/layerscape/patches-5.4/805-display-0031-Revert-drm-imx-hdp-fix-issue-with-non-SCDC-HDMI-sink.patch | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/target/linux/layerscape/patches-5.4/805-display-0031-Revert-drm-imx-hdp-fix-issue-with-non-SCDC-HDMI-sink.patch b/target/linux/layerscape/patches-5.4/805-display-0031-Revert-drm-imx-hdp-fix-issue-with-non-SCDC-HDMI-sink.patch new file mode 100644 index 0000000000..e906be4604 --- /dev/null +++ b/target/linux/layerscape/patches-5.4/805-display-0031-Revert-drm-imx-hdp-fix-issue-with-non-SCDC-HDMI-sink.patch @@ -0,0 +1,63 @@ +From 575fc16e92287349f0ffd8399dd9d7e408954cd4 Mon Sep 17 00:00:00 2001 +From: Sandor Yu <Sandor.yu@nxp.com> +Date: Fri, 29 Nov 2019 15:05:03 +0800 +Subject: [PATCH] Revert "drm/imx/hdp: fix issue with non-SCDC HDMI sinks" + +For HDMI sinks that support HDMI2.0, those video modes have +listed in hdmi1.4 specification should work in hdmi 1.4. +Remove the patch, make sure all video modes can work well +in HDMI2.0 sinks. +For non-SCDC HDMI sinks issue, +it will be fixed with another patch. + +This reverts commit 4b6617643f9e3a6f61d42eae39034ddc8d4825af. + +Signed-off-by: Sandor Yu <Sandor.yu@nxp.com> +--- + drivers/gpu/drm/bridge/cadence/cdns-hdmi-core.c | 20 ++++++++++---------- + 1 file changed, 10 insertions(+), 10 deletions(-) + +--- a/drivers/gpu/drm/bridge/cadence/cdns-hdmi-core.c ++++ b/drivers/gpu/drm/bridge/cadence/cdns-hdmi-core.c +@@ -29,17 +29,11 @@ + static void hdmi_sink_config(struct cdns_mhdp_device *mhdp) + { + struct drm_scdc *scdc = &mhdp->connector.base.display_info.hdmi.scdc; +- struct drm_display_info *di = &mhdp->connector.base.display_info; +- u8 buff = 0; +- +- if (scdc->supported || di->color_formats & DRM_COLOR_FORMAT_YCRCB420) +- mhdp->hdmi.hdmi_type = MODE_HDMI_2_0; +- else +- mhdp->hdmi.hdmi_type = MODE_HDMI_1_4; ++ u8 buff; + + /* check sink support SCDC or not */ +- if (!scdc->supported) { +- DRM_INFO("Sink does not support SCDC\n"); ++ if (scdc->supported != true) { ++ DRM_INFO("Sink Not Support SCDC\n"); + return; + } + +@@ -49,13 +43,19 @@ static void hdmi_sink_config(struct cdns + * Enable scrambling and TMDS_Bit_Clock_Ratio + */ + buff = SCDC_TMDS_BIT_CLOCK_RATIO_BY_40 | SCDC_SCRAMBLING_ENABLE; ++ mhdp->hdmi.hdmi_type = MODE_HDMI_2_0; + } else if (scdc->scrambling.low_rates) { + /* + * Enable scrambling and HDMI2.0 when scrambling capability of sink + * be indicated in the HF-VSDB LTE_340Mcsc_scramble bit + */ + buff = SCDC_SCRAMBLING_ENABLE; +- } ++ mhdp->hdmi.hdmi_type = MODE_HDMI_2_0; ++ } else { ++ /* Default work in HDMI1.4 */ ++ buff = 0; ++ mhdp->hdmi.hdmi_type = MODE_HDMI_1_4; ++ } + + /* TMDS config */ + cdns_hdmi_scdc_write(mhdp, 0x20, buff); |