linux-kernel - [PATCH v1 08/10] arm64: dts: apple: t8103: Add AUDIO_P parent to the SIO

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Date:   Fri, 16 Sep 2022 16:25:48 +0200
From:   Janne Grunau <j@...nau.net>
To:     asahi@...ts.linux.dev
Cc:     Mark Kettenis <kettenis@...nbsd.org>,
        Martin Povišer <povik+lin@...ebit.org>,
        Alyssa Rosenzweig <alyssa@...enzweig.io>,
        Hector Martin <marcan@...can.st>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Sven Peter <sven@...npeter.dev>, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH v1 08/10] arm64: dts: apple: t8103: Add AUDIO_P parent to the SIO_ADMA power domain

From: Martin Povišer <povik+lin@...ebit.org>

The SIO_ADMA is a power domain of the Audio DMA Controller. In addition
to it, the AUDIO_P domain must be on for the controller's MMIO registers
to be accessible.

On t600x and t8112, AUDIO_P is a parent of SIO_ADMA. On t8103, it isn't
so, at least as far as Apple's firmware goes. To make our life easier,
add the parent-child relationship on t8103 also.

Signed-off-by: Martin Povišer <povik+lin@...ebit.org>
Signed-off-by: Janne Grunau <j@...nau.net>
---

 arch/arm64/boot/dts/apple/t8103-pmgr.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/apple/t8103-pmgr.dtsi b/arch/arm64/boot/dts/apple/t8103-pmgr.dtsi
index a6dbb1f485d8..9645861a858c 100644
--- a/arch/arm64/boot/dts/apple/t8103-pmgr.dtsi
+++ b/arch/arm64/boot/dts/apple/t8103-pmgr.dtsi
@@ -339,7 +339,7 @@ ps_sio_adma: power-controller@230 {
 		#power-domain-cells = <0>;
 		#reset-cells = <0>;
 		label = "sio_adma";
-		power-domains = <&ps_sio>, <&ps_pms>;
+		power-domains = <&ps_sio>, <&ps_pms>, <&ps_audio_p>;
 	};
 
 	ps_aes: power-controller@238 {
-- 
2.35.1