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authorÁlvaro Fernández Rojas <noltari@gmail.com>2021-08-21 10:54:34 +0200
committerÁlvaro Fernández Rojas <noltari@gmail.com>2021-08-21 19:07:07 +0200
commit8299d1f057439f94c6a4412e2e5c5082b82a30c9 (patch)
tree1bf678d61f11f7394493be464c7876e496f7faed /target/linux/bcm27xx/patches-5.10/950-0506-vc4-drm-Increase-hdmi-audio-axi-priority-to-avoid-lo.patch
parent33b6885975ce376ff075362b7f0890326043111b (diff)
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bcm27xx: add kernel 5.10 support
Rebased RPi foundation patches on linux 5.10.59, removed applied and reverted patches, wireless patches and defconfig patches. bcm2708: boot tested on RPi B+ v1.2 bcm2709: boot tested on RPi 4B v1.1 4G bcm2711: boot tested on RPi 4B v1.1 4G Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Diffstat (limited to 'target/linux/bcm27xx/patches-5.10/950-0506-vc4-drm-Increase-hdmi-audio-axi-priority-to-avoid-lo.patch')
-rw-r--r--target/linux/bcm27xx/patches-5.10/950-0506-vc4-drm-Increase-hdmi-audio-axi-priority-to-avoid-lo.patch36
1 files changed, 36 insertions, 0 deletions
diff --git a/target/linux/bcm27xx/patches-5.10/950-0506-vc4-drm-Increase-hdmi-audio-axi-priority-to-avoid-lo.patch b/target/linux/bcm27xx/patches-5.10/950-0506-vc4-drm-Increase-hdmi-audio-axi-priority-to-avoid-lo.patch
new file mode 100644
index 0000000000..e829a24d74
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0506-vc4-drm-Increase-hdmi-audio-axi-priority-to-avoid-lo.patch
@@ -0,0 +1,36 @@
+From 40799ca446bed8dcb0bfc667fafb1c3a20f88b87 Mon Sep 17 00:00:00 2001
+From: Dom Cobley <popcornmix@gmail.com>
+Date: Fri, 12 Mar 2021 11:26:29 +0000
+Subject: [PATCH] vc4/drm: Increase hdmi audio axi priority to avoid
+ lost samples
+
+With HBR audio (8 channel 192kHz) we get occasional VC4_HD_MAI_CTL_DLATE error flags in
+HDMI_MAI_CTL which seem to correspond with audio dropouts.
+
+Increasing the normal AXI priority for dma is needed to avoid these
+
+Signed-off-by: Dom Cobley <popcornmix@gmail.com>
+---
+ arch/arm/boot/dts/bcm2711-rpi.dtsi | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+--- a/arch/arm/boot/dts/bcm2711-rpi.dtsi
++++ b/arch/arm/boot/dts/bcm2711-rpi.dtsi
+@@ -179,7 +179,7 @@
+ };
+
+ &hdmi0 {
+- dmas = <&dma (10|(1<<27)|(1<<24)|(0<<16)|(15<<20))>;
++ dmas = <&dma (10|(1<<27)|(1<<24)|(10<<16)|(15<<20))>;
+ status = "disabled";
+ };
+
+@@ -188,7 +188,7 @@
+ };
+
+ &hdmi1 {
+- dmas = <&dma (17|(1<<27)|(1<<24)|(0<<16)|(15<<20))>;
++ dmas = <&dma (17|(1<<27)|(1<<24)|(10<<16)|(15<<20))>;
+ status = "disabled";
+ };
+