[PATCH v2 12/12] ARM: dts: bcm2711: Tune DMA parameters for HDMI audio
Maxime Ripard
maxime at cerno.tech
Tue May 25 15:23:54 CEST 2021
From: Dom Cobley <popcornmix at gmail.com>
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 at gmail.com>
Signed-off-by: Maxime Ripard <maxime at cerno.tech>
---
arch/arm/boot/dts/bcm2711.dtsi | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/arm/boot/dts/bcm2711.dtsi b/arch/arm/boot/dts/bcm2711.dtsi
index 720beec54d61..9d1dde973680 100644
--- a/arch/arm/boot/dts/bcm2711.dtsi
+++ b/arch/arm/boot/dts/bcm2711.dtsi
@@ -344,7 +344,7 @@ hdmi0: hdmi at 7ef00700 {
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";
};
@@ -385,7 +385,7 @@ hdmi1: hdmi at 7ef05700 {
<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";
};
--
2.31.1
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