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

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Date:   Mon, 4 Jul 2022 21:20:19 +0200
From:   Robert Marko <robimarko@...il.com>
To:     Bjorn Andersson <bjorn.andersson@...aro.org>
Cc:     Andy Gross <agross@...nel.org>,
        Jassi Brar <jassisinghbrar@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        krzysztof.kozlowski+dt@...aro.org,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>,
        linux-arm-msm <linux-arm-msm@...r.kernel.org>,
        open list <linux-kernel@...r.kernel.org>,
        Devicetree List <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 Fri, 1 Jul 2022 at 00:59, Bjorn Andersson <bjorn.andersson@...aro.org> wrote:
>
> 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.

Hi,
Will fix it in v5.

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

Ok, will send patches 4-6 separately.

Regards,
Robert
>
> 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
> >