linux-kernel - Re: [PATCH v4 4/6] mailbox: qcom-apcs-ipc: add IPQ8074 APSS clock controller support

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Date:   Thu, 30 Jun 2022 17:59:28 -0500
From:   Bjorn Andersson <bjorn.andersson@...aro.org>
To:     Robert Marko <robimarko@...il.com>
Cc:     agross@...nel.org, jassisinghbrar@...il.com, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, mturquette@...libre.com,
        sboyd@...nel.org, linux-arm-msm@...r.kernel.org,
        linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
        linux-clk@...r.kernel.org
Subject: Re: [PATCH v4 4/6] mailbox: qcom-apcs-ipc: add IPQ8074 APSS clock
 controller support

On Sun 15 May 15:45 CDT 2022, Robert Marko wrote:

> IPQ8074 has the APSS clock controller utilizing the same register space as
> the APCS, so provide access to the APSS utilizing a child device like
> IPQ6018 does as well, but just by utilizing the IPQ8074 specific APSS
> clock driver.
> 
> Also, APCS register space in IPQ8074 is 0x6000 so max_register needs to be
> updated to 0x5FFC.
> 
> Signed-off-by: Robert Marko <robimarko@...il.com>
> ---
>  drivers/mailbox/qcom-apcs-ipc-mailbox.c | 8 ++++++--
>  1 file changed, 6 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/mailbox/qcom-apcs-ipc-mailbox.c b/drivers/mailbox/qcom-apcs-ipc-mailbox.c
> index 80a54d81412e..b3b9debf5673 100644
> --- a/drivers/mailbox/qcom-apcs-ipc-mailbox.c
> +++ b/drivers/mailbox/qcom-apcs-ipc-mailbox.c
> @@ -33,6 +33,10 @@ static const struct qcom_apcs_ipc_data ipq6018_apcs_data = {
>  	.offset = 8, .clk_name = "qcom,apss-ipq6018-clk"
>  };
>  
> +static const struct qcom_apcs_ipc_data ipq8074_apcs_data = {
> +	.offset = 8, .clk_name = "qcom,apss-ipq8074-clk"
> +};
> +
>  static const struct qcom_apcs_ipc_data msm8916_apcs_data = {
>  	.offset = 8, .clk_name = "qcom-apcs-msm8916-clk"
>  };
> @@ -57,7 +61,7 @@ static const struct regmap_config apcs_regmap_config = {
>  	.reg_bits = 32,
>  	.reg_stride = 4,
>  	.val_bits = 32,
> -	.max_register = 0x1008,
> +	.max_register = 0x5FFC,

Please use lower case hex digits.

And please send the mailbox patches separately, to make it clear for the
maintainers that this can be picked independently of others.

Regards,
Bjorn

>  	.fast_io = true,
>  };
>  
> @@ -142,7 +146,7 @@ static int qcom_apcs_ipc_remove(struct platform_device *pdev)
>  /* .data is the offset of the ipc register within the global block */
>  static const struct of_device_id qcom_apcs_ipc_of_match[] = {
>  	{ .compatible = "qcom,ipq6018-apcs-apps-global", .data = &ipq6018_apcs_data },
> -	{ .compatible = "qcom,ipq8074-apcs-apps-global", .data = &msm8994_apcs_data },
> +	{ .compatible = "qcom,ipq8074-apcs-apps-global", .data = &ipq8074_apcs_data },
>  	{ .compatible = "qcom,msm8916-apcs-kpss-global", .data = &msm8916_apcs_data },
>  	{ .compatible = "qcom,msm8939-apcs-kpss-global", .data = &msm8916_apcs_data },
>  	{ .compatible = "qcom,msm8953-apcs-kpss-global", .data = &msm8994_apcs_data },
> -- 
> 2.36.1
>