linux-kernel - Re: [PATCH] arm64: dts: qcom: sm8150: Add ufs power-domain entries

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Message-ID: <22c14d50-7585-ced5-24e2-8c0b417fa0db@postmarketos.org>
Date:   Fri, 28 Jan 2022 17:07:45 +0300
From:   Alexey Minnekhanov <alexeymin@...tmarketos.org>
To:     Bhupesh Sharma <bhupesh.sharma@...aro.org>,
        linux-arm-msm@...r.kernel.org
Cc:     bhupesh.linux@...il.com, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org, robh+dt@...nel.org,
        bjorn.andersson@...aro.org, agross@...nel.org,
        Rob Herring <robh@...nel.org>
Subject: Re: [PATCH] arm64: dts: qcom: sm8150: Add ufs power-domain entries

At 20.01.2022 11:28, Bhupesh Sharma wrote:
> Add power-domain entries for UFS controller & phy nodes
> in sm8150 dts.
> 
> ...
> +			power-domains = <&gcc UFS_PHY_GDSC>;
>   			resets = <&gcc GCC_UFS_PHY_BCR>;
>   			reset-names = "rst";
> ...
> +			power-domains = <&gcc UFS_CARD_GDSC>,
> +					<&gcc UFS_PHY_GDSC>;
> +			power-domain-names = "ufs_card_gdsc", "ufs_phy_gdsc";

Strange, but I don't see neither UFS_PHY_GDSC nor UFS_CARD_GDSC in 
gcc-sm8150.c [1] (and accordingly not in 
include/dt-bindings/clock/qcom,gcc-sm8150.h), but they are present in 
corresponding files for sm8250 [2].

By quick look at downstream sm8150-gdsc.dtsi addresses seem to be 
similar to one used on sm8250, so I'm guessing gcc-sm8150 has to be 
fixed first for this patch to work?

[1] 
https://elixir.bootlin.com/linux/v5.17-rc1/source/drivers/clk/qcom/gcc-sm8150.c#L3716
[2] 
https://elixir.bootlin.com/linux/v5.17-rc1/source/drivers/clk/qcom/gcc-sm8250.c#L3522

-- 
Regards
Alexey Minnekhanov
postmarketOS developer
https://www.postmarketos.org