Re: [PATCH 2/3] clk: qcom: apss-ipq-pll: add support for IPQ5018

[Gokul Sriram P <quic_gokulsri@xxxxxxxxxxx>]

On 8/30/2023 4:04 AM, Stephen Boyd wrote:
> Quoting Gokul Sriram Palanisamy (2023-08-29 02:54:22)
> > diff --git a/drivers/clk/qcom/apss-ipq-pll.c b/drivers/clk/qcom/apss-ipq-pll.c
> > index e170331858cc..bbc25d5eb70d 100644
> > --- a/drivers/clk/qcom/apss-ipq-pll.c
> > +++ b/drivers/clk/qcom/apss-ipq-pll.c
> > @@ -24,6 +24,17 @@ static const u8 ipq_pll_offsets[][PLL_OFF_MAX_REGS] = {
> >                  [PLL_OFF_TEST_CTL] = 0x30,
> >                  [PLL_OFF_TEST_CTL_U] = 0x34,
> >          },
> > +       [CLK_ALPHA_PLL_TYPE_STROMER] = {
> > +               [PLL_OFF_L_VAL] = 0x08,
> > +               [PLL_OFF_ALPHA_VAL] = 0x10,
> > +               [PLL_OFF_ALPHA_VAL_U] = 0x14,
> > +               [PLL_OFF_USER_CTL] = 0x18,
> > +               [PLL_OFF_USER_CTL_U] = 0x1c,
> > +               [PLL_OFF_CONFIG_CTL] = 0x20,
> > +               [PLL_OFF_STATUS] = 0x28,
> > +               [PLL_OFF_TEST_CTL] = 0x30,
> > +               [PLL_OFF_TEST_CTL_U] = 0x34,
> > +       },
> Is anything different from STROMER_PLUS?
 No, here both both STROMER and STROMER  PLUS has the same offsets.
  Will update to reuse STORMER PLUS config.
> >          [CLK_ALPHA_PLL_TYPE_STROMER_PLUS] = {
> >                  [PLL_OFF_L_VAL] = 0x08,
> >                  [PLL_OFF_ALPHA_VAL] = 0x10,
> > @@ -73,6 +84,38 @@ static struct clk_alpha_pll ipq_pll_stromer_plus = {
> >          },
> >   };
> >   
> > +static struct clk_alpha_pll ipq_pll_stromer = {
> > +       .offset = 0x0,
> > +       .regs = clk_alpha_pll_regs[CLK_ALPHA_PLL_TYPE_STROMER],
> > +       .flags = SUPPORTS_DYNAMIC_UPDATE,
> > +       .clkr = {
> > +               .enable_reg = 0x0,
> > +               .enable_mask = BIT(0),
> > +               .hw.init = &(struct clk_init_data){
> const?
 sure, will update.
> > +                       .name = "a53pll",
> > +                       .parent_data = &(const struct clk_parent_data) {
> > +                               .fw_name = "xo",
> > +                       },
> > +                       .num_parents = 1,
> > +                       .ops = &clk_alpha_pll_stromer_ops,
> > +               },
> > +       },
> > +};
> > +
> > +static const struct alpha_pll_config ipq5018_pll_config = {
> > +       .l = 0x32,
> > +       .config_ctl_val = 0x4001075b,
> > +       .config_ctl_hi_val = 0x304,
> > +       .main_output_mask = BIT(0),
> > +       .aux_output_mask = BIT(1),
> > +       .early_output_mask = BIT(3),
> > +       .alpha_en_mask = BIT(24),
> > +       .status_val = 0x3,
> > +       .status_mask = GENMASK(10, 8),
> > +       .lock_det = BIT(2),
> > +       .test_ctl_hi_val = 0x00400003,
> > +};
> > +
> >   static const struct alpha_pll_config ipq5332_pll_config = {
> >          .l = 0x3e,
> >          .config_ctl_val = 0x4001075b,
> > @@ -129,6 +172,12 @@ struct apss_pll_data {
> >          const struct alpha_pll_config *pll_config;
> >   };
> >   
> > +static struct apss_pll_data ipq5018_pll_data = {
> const?
 sure, will update.
> > +       .pll_type = CLK_ALPHA_PLL_TYPE_STROMER,
> > +       .pll = &ipq_pll_stromer,
> > +       .pll_config = &ipq5018_pll_config,
> > +};
> > +
> >   static struct apss_pll_data ipq5332_pll_data = {
> >          .pll_type = CLK_ALPHA_PLL_TYPE_STROMER_PLUS,
> >          .pll = &ipq_pll_stromer_plus,
> > @@ -183,7 +232,7 @@ static int apss_ipq_pll_probe(struct platform_device *pdev)
> >   
> >          if (data->pll_type == CLK_ALPHA_PLL_TYPE_HUAYRA)
> >                  clk_alpha_pll_configure(data->pll, regmap, data->pll_config);
> > -       else if (data->pll_type == CLK_ALPHA_PLL_TYPE_STROMER_PLUS)
> > +       else
> Just add both STROMER and STROMER_PLUS. Or make STROMER the same as
> STROMER_PLUS locally in this file?

sure, with the first comment addressed, this change will not be needed.

Regards,
Gokul