1 From 54643c62b6a848bfcfd86ac4eebbea28c0f1902e Mon Sep 17 00:00:00 2001
2 From: Dom Cobley <popcornmix@gmail.com>
3 Date: Wed, 28 Apr 2021 16:10:02 +0200
4 Subject: [PATCH] ARM: dts: bcm2711: Tune DMA parameters for HDMI audio
6 Enable NO_WAIT_RESP, DMA_WIDE_SOURCE, DMA_WIDE_DEST, and bump the DMA
7 panic and AXI priorities to avoid any DMA transfer error with HBR audio
10 Signed-off-by: Dom Cobley <popcornmix@gmail.com>
11 Signed-off-by: Maxime Ripard <maxime@cerno.tech>
13 arch/arm/boot/dts/bcm2711.dtsi | 4 ++--
14 1 file changed, 2 insertions(+), 2 deletions(-)
16 --- a/arch/arm/boot/dts/bcm2711.dtsi
17 +++ b/arch/arm/boot/dts/bcm2711.dtsi
19 interrupt-names = "cec-tx", "cec-rx", "cec-low",
20 "wakeup", "hpd-connected", "hpd-removed";
23 + dmas = <&dma (10 | (1 << 27) | (1 << 24)| (15 << 20) | (10 << 16))>;
24 dma-names = "audio-rx";
29 interrupt-names = "cec-tx", "cec-rx", "cec-low",
30 "wakeup", "hpd-connected", "hpd-removed";
32 + dmas = <&dma (17 | (1 << 27) | (1 << 24)| (15 << 20) | (10 << 16))>;
33 dma-names = "audio-rx";