linux-kernel - Re: [PATCH 13/23] arm64: dts: qcom: sc7180: use dedicated elite-audio dtsi

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Message-ID: <aIHi5uPxAtYARc7O@linaro.org>
Date: Thu, 24 Jul 2025 09:38:14 +0200
From: Stephan Gerhold <stephan.gerhold@...aro.org>
To: srinivas.kandagatla@....qualcomm.com
Cc: andersson@...nel.org, konradybcio@...nel.org, robh@...nel.org,
	krzk+dt@...nel.org, conor+dt@...nel.org,
	cros-qcom-dts-watchers@...omium.org, linux-arm-msm@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 13/23] arm64: dts: qcom: sc7180: use dedicated
 elite-audio dtsi

On Wed, Jul 23, 2025 at 11:27:27PM +0100, srinivas.kandagatla@....qualcomm.com wrote:
> From: Srinivas Kandagatla <srinivas.kandagatla@....qualcomm.com>
> 
> Make use of elite-audio.dtsi and remove the gpr nodes from SoC dtsi.
> This move removes duplication.
> 
> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@....qualcomm.com>
> ---
>  .../boot/dts/qcom/sc7180-acer-aspire1.dts     |  1 +
>  arch/arm64/boot/dts/qcom/sc7180-audio.dtsi    |  8 +++
>  arch/arm64/boot/dts/qcom/sc7180-idp.dts       |  1 +
>  arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi  |  1 +
>  arch/arm64/boot/dts/qcom/sc7180.dtsi          | 56 +------------------
>  arch/arm64/boot/dts/qcom/sm7125.dtsi          |  1 +
>  6 files changed, 13 insertions(+), 55 deletions(-)
>  create mode 100644 arch/arm64/boot/dts/qcom/sc7180-audio.dtsi
> 
> [...]
> diff --git a/arch/arm64/boot/dts/qcom/sc7180-audio.dtsi b/arch/arm64/boot/dts/qcom/sc7180-audio.dtsi
> new file mode 100644
> index 000000000000..d6d41ba93195
> --- /dev/null
> +++ b/arch/arm64/boot/dts/qcom/sc7180-audio.dtsi
> @@ -0,0 +1,8 @@
> +// SPDX-License-Identifier: BSD-3-Clause
> +/*
> + * Copyright (c) 2025 Qualcomm Innovation Center, Inc. All rights reserved.
> + */
> +#include "elite-audio.dtsi"
> +&q6asmdai{
> +	iommus = <&apps_smmu 0x1001 0x0>;
> +};
> [...]
> diff --git a/arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi b/arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi
> index 74ab321d3333..0e267b9fdefc 100644
> --- a/arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi
> @@ -13,6 +13,7 @@
>  #include <dt-bindings/sound/sc7180-lpass.h>
>  
>  #include "sc7180.dtsi"
> +#include "sc7180-audio.dtsi"
>  #include "sc7180-firmware-tfa.dtsi"
>  /* PMICs depend on spmi_bus label and so must come after sc7180.dtsi */
>  #include "pm6150.dtsi"

ChromeOS on SC7180 uses ADSP bypass, so explicitly including
elite-audio.dtsi for Trogdor is a bit unexpected. It doesn't use those
nodes at all.

Thanks,
Stephan