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>

diff --git a/arch/arm/boot/dts/bcm2711-rpi.dtsi b/arch/arm/boot/dts/bcm2711-rpi.dtsi
index 8053ef5..20581ee 100644 (file)
--- 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";
 };