linux-kernel - Re: [RFC PATCH v2 4/7] soc: qcom: Make the Qualcomm UFS/SDCC ICE a dedicated driver

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Date:   Wed, 8 Mar 2023 12:01:41 -0800
From:   Eric Biggers <ebiggers@...nel.org>
To:     Abel Vesa <abel.vesa@...aro.org>
Cc:     Ulf Hansson <ulf.hansson@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Manivannan Sadhasivam <mani@...nel.org>,
        Alim Akhtar <alim.akhtar@...sung.com>,
        Avri Altman <avri.altman@....com>,
        Bart Van Assche <bvanassche@....org>,
        Adrian Hunter <adrian.hunter@...el.com>,
        "James E . J . Bottomley" <jejb@...ux.ibm.com>,
        "Martin K . Petersen" <martin.petersen@...cle.com>,
        linux-mmc@...r.kernel.org, devicetree@...r.kernel.org,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        linux-arm-msm@...r.kernel.org, linux-scsi@...r.kernel.org
Subject: Re: [RFC PATCH v2 4/7] soc: qcom: Make the Qualcomm UFS/SDCC ICE a
 dedicated driver

On Wed, Mar 08, 2023 at 05:58:35PM +0200, Abel Vesa wrote:
>  * Switched QCOM_INLINE_CRYPTO_ENGINE to tristate and made it built-in
>    if any of the UFS or the SDHC drivers are built-in. This is to allow
>    the API to be available even if the built-in driver doesn't have
>    crypto enabled.
[...]
> diff --git a/drivers/soc/qcom/Kconfig b/drivers/soc/qcom/Kconfig
> index a8f283086a21..c584369e9810 100644
> --- a/drivers/soc/qcom/Kconfig
> +++ b/drivers/soc/qcom/Kconfig
> @@ -275,4 +275,10 @@ config QCOM_ICC_BWMON
>  	  the fixed bandwidth votes from cpufreq (CPU nodes) thus achieve high
>  	  memory throughput even with lower CPU frequencies.
>  
> +config QCOM_INLINE_CRYPTO_ENGINE
> +	tristate
> +	depends on SCSI_UFS_CRYPTO || MMC_CRYPTO
> +	default y if SCSI_UFS_QCOM=y || MMC_SDHCI_MSM=y
> +	select QCOM_SCM

What are the "depends on" and "default y" lines above for?

You're already selecting this from SCSI_UFS_QCOM and MSM_SDHCI_MSM, as I had
suggested.  Isn't that enough?

- Eric