layerscape: add patches-5.4

Add patches for linux-5.4. The patches are from NXP LSDK-20.04 release
which was tagged LSDK-20.04-V5.4.
https://source.codeaurora.org/external/qoriq/qoriq-components/linux/

For boards LS1021A-IOT, and Traverse-LS1043 which are not involved in
LSDK, port the dts patches from 4.14.

The patches are sorted into the following categories:
  301-arch-xxxx
  302-dts-xxxx
  303-core-xxxx
  701-net-xxxx
  801-audio-xxxx
  802-can-xxxx
  803-clock-xxxx
  804-crypto-xxxx
  805-display-xxxx
  806-dma-xxxx
  807-gpio-xxxx
  808-i2c-xxxx
  809-jailhouse-xxxx
  810-keys-xxxx
  811-kvm-xxxx
  812-pcie-xxxx
  813-pm-xxxx
  814-qe-xxxx
  815-sata-xxxx
  816-sdhc-xxxx
  817-spi-xxxx
  818-thermal-xxxx
  819-uart-xxxx
  820-usb-xxxx
  821-vfio-xxxx

Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>

1 files changed, 60 insertions, 0 deletions

diff --git a/target/linux/layerscape/patches-5.4/805-display-0030-drm-imx-hdp-fix-issue-with-non-SCDC-HDMI-sinks.patch b/target/linux/layerscape/patches-5.4/805-display-0030-drm-imx-hdp-fix-issue-with-non-SCDC-HDMI-sinks.patch
new file mode 100644
index 0000000000..be72d1fd38
--- /dev/null
+++ b/target/linux/layerscape/patches-5.4/805-display-0030-drm-imx-hdp-fix-issue-with-non-SCDC-HDMI-sinks.patch
@@ -0,0 +1,60 @@
+From d9440f7cb8fa5853b9dcc6e2b165725ac3e8b70c Mon Sep 17 00:00:00 2001
+From: Laurentiu Palcu <laurentiu.palcu@nxp.com>
+Date: Wed, 27 Nov 2019 13:34:51 +0200
+Subject: [PATCH] drm/imx/hdp: fix issue with non-SCDC HDMI sinks
+
+Currently, if sink does not support SCDC, even if the sink is HDMI 1.4 or 2.0,
+the hdmi_type is left to default value (MODE_DVI). Hence the HDMI controler is
+not properly initialized when cdns_hdmi_ctrl_init() is called.
+
+Signed-off-by: Laurentiu Palcu <laurentiu.palcu@nxp.com>
+Reported-by: Jared Hu <jared.hu@nxp.com>
+Reviewed-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
+@@ -29,11 +29,17 @@
+ static void hdmi_sink_config(struct cdns_mhdp_device *mhdp)
+ {
+ 	struct drm_scdc *scdc = &mhdp->connector.base.display_info.hdmi.scdc;
+-	u8 buff;
++	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;
+ 
+ 	/* check sink support SCDC or not */
+-	if (scdc->supported != true) {
+-		DRM_INFO("Sink Not Support SCDC\n");
++	if (!scdc->supported) {
++		DRM_INFO("Sink does not support SCDC\n");
+ 		return;
+ 	}
+ 
+@@ -43,19 +49,13 @@ 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);