linux-kernel - Re: [PATCH v2 3/4] arm64: dts: ti: k3-am65-main: Do not exclusively claim SA2UL

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Message-ID: <c6285157-480d-d8f6-f11f-25604455ece0@ti.com>
Date:   Tue, 30 Aug 2022 15:31:21 +0530
From:   Jayesh Choudhary <j-choudhary@...com>
To:     Andrew Davis <afd@...com>, Nishanth Menon <nm@...com>,
        Vignesh Raghavendra <vigneshr@...com>,
        Tero Kristo <kristo@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 3/4] arm64: dts: ti: k3-am65-main: Do not exclusively
 claim SA2UL



On 23/08/22 05:41, Andrew Davis wrote:
> The SA2UL hardware is also used by SYSFW and OP-TEE. It should be
> requested using the shared TI-SCI flags instead of the exclusive
> flags or the request will fail.
> 
> Signed-off-by: Andrew Davis <afd@...com>
> ---
>   arch/arm64/boot/dts/ti/k3-am65-main.dtsi | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/arch/arm64/boot/dts/ti/k3-am65-main.dtsi b/arch/arm64/boot/dts/ti/k3-am65-main.dtsi
> index 165f53bd058b..4005a73cfea9 100644
> --- a/arch/arm64/boot/dts/ti/k3-am65-main.dtsi
> +++ b/arch/arm64/boot/dts/ti/k3-am65-main.dtsi
> @@ -112,7 +112,7 @@ main_uart2: serial@...0000 {
>   	crypto: crypto@...0000 {
>   		compatible = "ti,am654-sa2ul";
>   		reg = <0x0 0x4e00000 0x0 0x1200>;
> -		power-domains = <&k3_pds 136 TI_SCI_PD_EXCLUSIVE>;
> +		power-domains = <&k3_pds 136 TI_SCI_PD_SHARED>;
>   		#address-cells = <2>;
>   		#size-cells = <2>;
>   		ranges = <0x0 0x04e00000 0x00 0x04e00000 0x0 0x30000>;

Reviewed-by: Jayesh Choudhary <j-choudhary@...com>