Re: [PATCH] clk: qcom: rpmh: add support for SM6350 rpmh IPA clock

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On Tue, 29 Nov 2022 at 03:54, Alex Elder <elder@xxxxxxxxxx> wrote:
>
> On 11/28/22 7:35 PM, Dmitry Baryshkov wrote:
> > On Tue, 29 Nov 2022 at 02:00, Alex Elder <elder@xxxxxxxxxx> wrote:
> >>
> >> From: Luca Weiss <luca.weiss@xxxxxxxxxxxxx>
> >>
> >> The IPA core clock is required for SM6350.  Define it.
> >>
> >> Signed-off-by: Luca Weiss <luca.weiss@xxxxxxxxxxxxx>
> >> ---
> >>   drivers/clk/qcom/clk-rpmh.c | 2 ++
> >>   1 file changed, 2 insertions(+)
> >>
> >> diff --git a/drivers/clk/qcom/clk-rpmh.c b/drivers/clk/qcom/clk-rpmh.c
> >> index 0471bab824642..6a5887aae21a4 100644
> >> --- a/drivers/clk/qcom/clk-rpmh.c
> >> +++ b/drivers/clk/qcom/clk-rpmh.c
> >> @@ -603,6 +603,7 @@ static const struct clk_rpmh_desc clk_rpmh_sc7280 = {
> >>   DEFINE_CLK_RPMH_VRM(sm6350, ln_bb_clk2, ln_bb_clk2_ao, "lnbclkg2", 4);
> >>   DEFINE_CLK_RPMH_VRM(sm6350, ln_bb_clk3, ln_bb_clk3_ao, "lnbclkg3", 4);
> >>   DEFINE_CLK_RPMH_ARC(sm6350, qlink, qlink_ao, "qphy.lvl", 0x1, 4);
> >> +DEFINE_CLK_RPMH_BCM(sm6350, ipa, "IP0");
>
> So you're saying that the above line is unnecessary...

Yes

>
> >>   static struct clk_hw *sm6350_rpmh_clocks[] = {
> >>          [RPMH_CXO_CLK]          = &sc7280_bi_tcxo.hw,
> >> @@ -613,6 +614,7 @@ static struct clk_hw *sm6350_rpmh_clocks[] = {
> >>          [RPMH_LN_BB_CLK3_A]     = &sm6350_ln_bb_clk3_ao.hw,
> >>          [RPMH_QLINK_CLK]        = &sm6350_qlink.hw,
> >>          [RPMH_QLINK_CLK_A]      = &sm6350_qlink_ao.hw,
> >> +       [RPMH_IPA_CLK]          = &sm6350_ipa.hw,
>
> ...and that this line (above) can instead look like this:
>
>         [RPMH_IPA_CLK]          = &sdm845_ipa.hw,
>
> Correct?

Yes

>
> > This can use sdm845_ipa.hw instead of defining new clocks.
>
> Your statement seems to also be true for the [RPMH_IPA_CLK]
> entry in sdx55_rpmh_clocks[].  (For the record, the commit
> that added that one was authored by me, and I didn't realize
> what you have stated here.)
>
> Please confirm, and I'll update.
>
> I'll also send another patch to remove the definition of
> sdx55_ipa if Mani is willing to test it for me...
>
> Thank you Dmitry.
>
>                                         -Alex
>
> >>   };
> >>
> >>   static const struct clk_rpmh_desc clk_rpmh_sm6350 = {
> >> --
> >> 2.34.1
> >>
> >
> >
>

--
With best wishes
Dmitry



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