diff options
Diffstat (limited to 'target/linux/bcm27xx/patches-5.10/950-0638-ARM-dts-bcm2711-Tune-DMA-parameters-for-HDMI-audio.patch')
| -rw-r--r-- | target/linux/bcm27xx/patches-5.10/950-0638-ARM-dts-bcm2711-Tune-DMA-parameters-for-HDMI-audio.patch | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/target/linux/bcm27xx/patches-5.10/950-0638-ARM-dts-bcm2711-Tune-DMA-parameters-for-HDMI-audio.patch b/target/linux/bcm27xx/patches-5.10/950-0638-ARM-dts-bcm2711-Tune-DMA-parameters-for-HDMI-audio.patch new file mode 100644 index 0000000000..c4a3492c82 --- /dev/null +++ b/target/linux/bcm27xx/patches-5.10/950-0638-ARM-dts-bcm2711-Tune-DMA-parameters-for-HDMI-audio.patch @@ -0,0 +1,35 @@ +From 54643c62b6a848bfcfd86ac4eebbea28c0f1902e Mon Sep 17 00:00:00 2001 +From: Dom Cobley <popcornmix@gmail.com> +Date: Wed, 28 Apr 2021 16:10:02 +0200 +Subject: [PATCH] ARM: dts: bcm2711: Tune DMA parameters for HDMI audio + +Enable NO_WAIT_RESP, DMA_WIDE_SOURCE, DMA_WIDE_DEST, and bump the DMA +panic and AXI priorities to avoid any DMA transfer error with HBR audio +(8 channel, 192Hz). + +Signed-off-by: Dom Cobley <popcornmix@gmail.com> +Signed-off-by: Maxime Ripard <maxime@cerno.tech> +--- + arch/arm/boot/dts/bcm2711.dtsi | 4 ++-- + 1 file changed, 2 insertions(+), 2 deletions(-) + +--- a/arch/arm/boot/dts/bcm2711.dtsi ++++ b/arch/arm/boot/dts/bcm2711.dtsi +@@ -359,7 +359,7 @@ + interrupt-names = "cec-tx", "cec-rx", "cec-low", + "wakeup", "hpd-connected", "hpd-removed"; + ddc = <&ddc0>; +- dmas = <&dma 10>; ++ dmas = <&dma (10 | (1 << 27) | (1 << 24)| (15 << 20) | (10 << 16))>; + dma-names = "audio-rx"; + status = "disabled"; + }; +@@ -406,7 +406,7 @@ + <9>, <10>, <11>; + interrupt-names = "cec-tx", "cec-rx", "cec-low", + "wakeup", "hpd-connected", "hpd-removed"; +- dmas = <&dma 17>; ++ dmas = <&dma (17 | (1 << 27) | (1 << 24)| (15 << 20) | (10 << 16))>; + dma-names = "audio-rx"; + status = "disabled"; + }; |