Re: [RFC PATCH 07/12] clk: qcom: gcc-apq8084: add GCC_MMSS_GPLL0_CLK_SRC

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On Tue, 27 Dec 2022 at 13:58, Konrad Dybcio <konrad.dybcio@xxxxxxxxxx> wrote:
>
>
>
> On 27.12.2022 02:32, Dmitry Baryshkov wrote:
> > Add the GCC_MMSS_GPLL0_CLK_SRC, the branch clock gating gpll0 clock for
> > the multimedia subsystem.
> >
> > Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>
> > ---
> I'm thinking whether it would maybe make sense to put 8974
> and 8084 clocks in a single driver.. They seem close to identical.

Unfortunately the bindings are quite different. So even if we pack
both gcc drivers into a single one, we'd still have to cope with
different numeric ids.
The only sensible solution that  I have in mind is to have a common C
file, containing common clock definitions.

>
> Reviewed-by: Konrad Dybcio <konrad.dybcio@xxxxxxxxxx>
>
> Konrad
> >  drivers/clk/qcom/gcc-apq8084.c | 14 ++++++++++++++
> >  1 file changed, 14 insertions(+)
> >
> > diff --git a/drivers/clk/qcom/gcc-apq8084.c b/drivers/clk/qcom/gcc-apq8084.c
> > index c26e222c78d4..7085d2ccae49 100644
> > --- a/drivers/clk/qcom/gcc-apq8084.c
> > +++ b/drivers/clk/qcom/gcc-apq8084.c
> > @@ -1382,6 +1382,19 @@ static struct clk_rcg2 usb_hsic_system_clk_src = {
> >       },
> >  };
> >
> > +static struct clk_regmap gcc_mmss_gpll0_clk_src = {
> > +     .enable_reg = 0x1484,
> > +     .enable_mask = BIT(26),
> > +     .hw.init = &(struct clk_init_data){
> > +             .name = "mmss_gpll0_vote",
> > +             .parent_hws = (const struct clk_hw*[]){
> > +                     &gpll0_vote.hw,
> > +             },
> > +             .num_parents = 1,
> > +             .ops = &clk_branch_simple_ops,
> > +     },
> > +};
> > +
> >  static struct clk_branch gcc_bam_dma_ahb_clk = {
> >       .halt_reg = 0x0d44,
> >       .halt_check = BRANCH_HALT_VOTED,
> > @@ -3480,6 +3493,7 @@ static struct clk_regmap *gcc_apq8084_clocks[] = {
> >       [GCC_USB_HSIC_IO_CAL_SLEEP_CLK] = &gcc_usb_hsic_io_cal_sleep_clk.clkr,
> >       [GCC_USB_HSIC_MOCK_UTMI_CLK] = &gcc_usb_hsic_mock_utmi_clk.clkr,
> >       [GCC_USB_HSIC_SYSTEM_CLK] = &gcc_usb_hsic_system_clk.clkr,
> > +     [GCC_MMSS_GPLL0_CLK_SRC] = &gcc_mmss_gpll0_clk_src,
> >  };
> >
> >  static struct gdsc *gcc_apq8084_gdscs[] = {



-- 
With best wishes
Dmitry



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