mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-28 09:39:00 +00:00
64 lines
2.1 KiB
Diff
64 lines
2.1 KiB
Diff
|
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);
|