Messages in this thread Patch in this message | | | From | Maxime Ripard <> | Subject | [PATCH v2 12/12] ARM: dts: bcm2711: Tune DMA parameters for HDMI audio | Date | Tue, 25 May 2021 15:23:54 +0200 |
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From: Dom Cobley <popcornmix@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@gmail.com> Signed-off-by: Maxime Ripard <maxime@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@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@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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