diff mbox series

[v2,3/3] clk: qcom: lcc-ipq806x: convert to parent data

Message ID 20220621163326.16858-3-ansuelsmth@gmail.com (mailing list archive)
State Superseded
Headers show
Series [v2,1/3] dt-bindings: clock: add pcm reset for ipq806x lcc | expand

Commit Message

Christian Marangi June 21, 2022, 4:33 p.m. UTC
Convert lcc-ipq806x driver to parent_data API.

Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
---
v2:
- Fix Sob tag

 drivers/clk/qcom/lcc-ipq806x.c | 79 +++++++++++++++++++---------------
 1 file changed, 44 insertions(+), 35 deletions(-)

Comments

Dmitry Baryshkov June 21, 2022, 5:15 p.m. UTC | #1
On Tue, 21 Jun 2022 at 19:33, Christian Marangi <ansuelsmth@gmail.com> wrote:
>
> Convert lcc-ipq806x driver to parent_data API.
>
> Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
> ---
> v2:
> - Fix Sob tag
>
>  drivers/clk/qcom/lcc-ipq806x.c | 79 +++++++++++++++++++---------------
>  1 file changed, 44 insertions(+), 35 deletions(-)
>
> diff --git a/drivers/clk/qcom/lcc-ipq806x.c b/drivers/clk/qcom/lcc-ipq806x.c
> index ba90bebba597..c07ca8dc6e3a 100644
> --- a/drivers/clk/qcom/lcc-ipq806x.c
> +++ b/drivers/clk/qcom/lcc-ipq806x.c
> @@ -24,6 +24,10 @@
>  #include "clk-regmap-mux.h"
>  #include "reset.h"
>
> +static const struct clk_parent_data gcc_pxo[] = {
> +       { .fw_name = "pxo", .name = "pxo" },

I think you'd use .name = "pxo_board" here. You don't need to use the
interim clock.

> +};
> +
>  static struct clk_pll pll4 = {
>         .l_reg = 0x4,
>         .m_reg = 0x8,
> @@ -34,7 +38,7 @@ static struct clk_pll pll4 = {
>         .status_bit = 16,
>         .clkr.hw.init = &(struct clk_init_data){
>                 .name = "pll4",
> -               .parent_names = (const char *[]){ "pxo" },
> +               .parent_data = gcc_pxo,
>                 .num_parents = 1,

Could you please either inline the gcc_pxo here (yes, it's ugly, but
it works for small arrays) or use ARRAY_SIZE here.

>                 .ops = &clk_pll_ops,
>         },
> @@ -64,9 +68,9 @@ static const struct parent_map lcc_pxo_pll4_map[] = {
>         { P_PLL4, 2 }
>  };
>
> -static const char * const lcc_pxo_pll4[] = {
> -       "pxo",
> -       "pll4_vote",
> +static const struct clk_parent_data lcc_pxo_pll4[] = {
> +       { .fw_name = "pxo", .name = "pxo" },
> +       { .fw_name = "pll4_vote", .name = "pll4_vote" },
>  };
>
>  static struct freq_tbl clk_tbl_aif_mi2s[] = {
> @@ -131,18 +135,14 @@ static struct clk_rcg mi2s_osr_src = {
>                 .enable_mask = BIT(9),
>                 .hw.init = &(struct clk_init_data){
>                         .name = "mi2s_osr_src",
> -                       .parent_names = lcc_pxo_pll4,
> -                       .num_parents = 2,
> +                       .parent_data = lcc_pxo_pll4,
> +                       .num_parents = ARRAY_SIZE(lcc_pxo_pll4),
>                         .ops = &clk_rcg_ops,
>                         .flags = CLK_SET_RATE_GATE,
>                 },
>         },
>  };
>
> -static const char * const lcc_mi2s_parents[] = {
> -       "mi2s_osr_src",
> -};
> -
>  static struct clk_branch mi2s_osr_clk = {
>         .halt_reg = 0x50,
>         .halt_bit = 1,
> @@ -152,7 +152,9 @@ static struct clk_branch mi2s_osr_clk = {
>                 .enable_mask = BIT(17),
>                 .hw.init = &(struct clk_init_data){
>                         .name = "mi2s_osr_clk",
> -                       .parent_names = lcc_mi2s_parents,
> +                       .parent_hws = (const struct clk_hw*[]){
> +                               &mi2s_osr_src.clkr.hw,
> +                       },
>                         .num_parents = 1,
>                         .ops = &clk_branch_ops,
>                         .flags = CLK_SET_RATE_PARENT,
> @@ -167,7 +169,9 @@ static struct clk_regmap_div mi2s_div_clk = {
>         .clkr = {
>                 .hw.init = &(struct clk_init_data){
>                         .name = "mi2s_div_clk",
> -                       .parent_names = lcc_mi2s_parents,
> +                       .parent_hws = (const struct clk_hw*[]){
> +                               &mi2s_osr_src.clkr.hw,
> +                       },
>                         .num_parents = 1,
>                         .ops = &clk_regmap_div_ops,
>                 },
> @@ -183,7 +187,9 @@ static struct clk_branch mi2s_bit_div_clk = {
>                 .enable_mask = BIT(15),
>                 .hw.init = &(struct clk_init_data){
>                         .name = "mi2s_bit_div_clk",
> -                       .parent_names = (const char *[]){ "mi2s_div_clk" },
> +                       .parent_hws = (const struct clk_hw*[]){
> +                               &mi2s_div_clk.clkr.hw,
> +                       },
>                         .num_parents = 1,
>                         .ops = &clk_branch_ops,
>                         .flags = CLK_SET_RATE_PARENT,
> @@ -191,6 +197,10 @@ static struct clk_branch mi2s_bit_div_clk = {
>         },
>  };
>
> +static const struct clk_parent_data lcc_mi2s_bit_div_codec_clk[] = {
> +       { .hw = &mi2s_bit_div_clk.clkr.hw, },
> +       { .fw_name = "mi2s_codec_clk", .name = "mi2s_codec_clk" },
> +};
>
>  static struct clk_regmap_mux mi2s_bit_clk = {
>         .reg = 0x48,
> @@ -199,11 +209,8 @@ static struct clk_regmap_mux mi2s_bit_clk = {
>         .clkr = {
>                 .hw.init = &(struct clk_init_data){
>                         .name = "mi2s_bit_clk",
> -                       .parent_names = (const char *[]){
> -                               "mi2s_bit_div_clk",
> -                               "mi2s_codec_clk",
> -                       },
> -                       .num_parents = 2,
> +                       .parent_data = lcc_mi2s_bit_div_codec_clk,
> +                       .num_parents = ARRAY_SIZE(lcc_mi2s_bit_div_codec_clk),
>                         .ops = &clk_regmap_mux_closest_ops,
>                         .flags = CLK_SET_RATE_PARENT,
>                 },
> @@ -245,8 +252,8 @@ static struct clk_rcg pcm_src = {
>                 .enable_mask = BIT(9),
>                 .hw.init = &(struct clk_init_data){
>                         .name = "pcm_src",
> -                       .parent_names = lcc_pxo_pll4,
> -                       .num_parents = 2,
> +                       .parent_data = lcc_pxo_pll4,
> +                       .num_parents = ARRAY_SIZE(lcc_pxo_pll4),
>                         .ops = &clk_rcg_ops,
>                         .flags = CLK_SET_RATE_GATE,
>                 },
> @@ -262,7 +269,9 @@ static struct clk_branch pcm_clk_out = {
>                 .enable_mask = BIT(11),
>                 .hw.init = &(struct clk_init_data){
>                         .name = "pcm_clk_out",
> -                       .parent_names = (const char *[]){ "pcm_src" },
> +                       .parent_hws = (const struct clk_hw*[]){
> +                               &pcm_src.clkr.hw,
> +                       },
>                         .num_parents = 1,
>                         .ops = &clk_branch_ops,
>                         .flags = CLK_SET_RATE_PARENT,
> @@ -270,6 +279,11 @@ static struct clk_branch pcm_clk_out = {
>         },
>  };
>
> +static const struct clk_parent_data lcc_pcm_clk_out_codec_clk[] = {
> +       { .hw = &pcm_clk_out.clkr.hw, },
> +       { .fw_name = "pcm_codec_clk", .name = "pcm_codec_clk" },
> +};
> +
>  static struct clk_regmap_mux pcm_clk = {
>         .reg = 0x54,
>         .shift = 10,
> @@ -277,11 +291,8 @@ static struct clk_regmap_mux pcm_clk = {
>         .clkr = {
>                 .hw.init = &(struct clk_init_data){
>                         .name = "pcm_clk",
> -                       .parent_names = (const char *[]){
> -                               "pcm_clk_out",
> -                               "pcm_codec_clk",
> -                       },
> -                       .num_parents = 2,
> +                       .parent_data = lcc_pcm_clk_out_codec_clk,
> +                       .num_parents = ARRAY_SIZE(lcc_pcm_clk_out_codec_clk),
>                         .ops = &clk_regmap_mux_closest_ops,
>                         .flags = CLK_SET_RATE_PARENT,
>                 },
> @@ -325,18 +336,14 @@ static struct clk_rcg spdif_src = {
>                 .enable_mask = BIT(9),
>                 .hw.init = &(struct clk_init_data){
>                         .name = "spdif_src",
> -                       .parent_names = lcc_pxo_pll4,
> -                       .num_parents = 2,
> +                       .parent_data = lcc_pxo_pll4,
> +                       .num_parents = ARRAY_SIZE(lcc_pxo_pll4),
>                         .ops = &clk_rcg_ops,
>                         .flags = CLK_SET_RATE_GATE,
>                 },
>         },
>  };
>
> -static const char * const lcc_spdif_parents[] = {
> -       "spdif_src",
> -};
> -
>  static struct clk_branch spdif_clk = {
>         .halt_reg = 0xd4,
>         .halt_bit = 1,
> @@ -346,7 +353,9 @@ static struct clk_branch spdif_clk = {
>                 .enable_mask = BIT(12),
>                 .hw.init = &(struct clk_init_data){
>                         .name = "spdif_clk",
> -                       .parent_names = lcc_spdif_parents,
> +                       .parent_hws = (const struct clk_hw*[]){
> +                               &spdif_src.clkr.hw,
> +                       },
>                         .num_parents = 1,
>                         .ops = &clk_branch_ops,
>                         .flags = CLK_SET_RATE_PARENT,
> @@ -384,8 +393,8 @@ static struct clk_rcg ahbix_clk = {
>                 .enable_mask = BIT(11),
>                 .hw.init = &(struct clk_init_data){
>                         .name = "ahbix",
> -                       .parent_names = lcc_pxo_pll4,
> -                       .num_parents = 2,
> +                       .parent_data = lcc_pxo_pll4,
> +                       .num_parents = ARRAY_SIZE(lcc_pxo_pll4),
>                         .ops = &clk_rcg_lcc_ops,
>                 },
>         },
> --
> 2.36.1
>
Christian Marangi June 21, 2022, 8:23 p.m. UTC | #2
On Tue, Jun 21, 2022 at 08:15:57PM +0300, Dmitry Baryshkov wrote:
> On Tue, 21 Jun 2022 at 19:33, Christian Marangi <ansuelsmth@gmail.com> wrote:
> >
> > Convert lcc-ipq806x driver to parent_data API.
> >
> > Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
> > ---
> > v2:
> > - Fix Sob tag
> >
> >  drivers/clk/qcom/lcc-ipq806x.c | 79 +++++++++++++++++++---------------
> >  1 file changed, 44 insertions(+), 35 deletions(-)
> >
> > diff --git a/drivers/clk/qcom/lcc-ipq806x.c b/drivers/clk/qcom/lcc-ipq806x.c
> > index ba90bebba597..c07ca8dc6e3a 100644
> > --- a/drivers/clk/qcom/lcc-ipq806x.c
> > +++ b/drivers/clk/qcom/lcc-ipq806x.c
> > @@ -24,6 +24,10 @@
> >  #include "clk-regmap-mux.h"
> >  #include "reset.h"
> >
> > +static const struct clk_parent_data gcc_pxo[] = {
> > +       { .fw_name = "pxo", .name = "pxo" },
> 
> I think you'd use .name = "pxo_board" here. You don't need to use the
> interim clock.
>

In gcc and in the rest of this driver we use pxo. Wonder what is right?

> > +};
> > +
> >  static struct clk_pll pll4 = {
> >         .l_reg = 0x4,
> >         .m_reg = 0x8,
> > @@ -34,7 +38,7 @@ static struct clk_pll pll4 = {
> >         .status_bit = 16,
> >         .clkr.hw.init = &(struct clk_init_data){
> >                 .name = "pll4",
> > -               .parent_names = (const char *[]){ "pxo" },
> > +               .parent_data = gcc_pxo,
> >                 .num_parents = 1,
> 
> Could you please either inline the gcc_pxo here (yes, it's ugly, but
> it works for small arrays) or use ARRAY_SIZE here.
> 

Yes will inline gcc_pxo.

> >                 .ops = &clk_pll_ops,
> >         },
> > @@ -64,9 +68,9 @@ static const struct parent_map lcc_pxo_pll4_map[] = {
> >         { P_PLL4, 2 }
> >  };
> >
> > -static const char * const lcc_pxo_pll4[] = {
> > -       "pxo",
> > -       "pll4_vote",
> > +static const struct clk_parent_data lcc_pxo_pll4[] = {
> > +       { .fw_name = "pxo", .name = "pxo" },
> > +       { .fw_name = "pll4_vote", .name = "pll4_vote" },
> >  };
> >
> >  static struct freq_tbl clk_tbl_aif_mi2s[] = {
> > @@ -131,18 +135,14 @@ static struct clk_rcg mi2s_osr_src = {
> >                 .enable_mask = BIT(9),
> >                 .hw.init = &(struct clk_init_data){
> >                         .name = "mi2s_osr_src",
> > -                       .parent_names = lcc_pxo_pll4,
> > -                       .num_parents = 2,
> > +                       .parent_data = lcc_pxo_pll4,
> > +                       .num_parents = ARRAY_SIZE(lcc_pxo_pll4),
> >                         .ops = &clk_rcg_ops,
> >                         .flags = CLK_SET_RATE_GATE,
> >                 },
> >         },
> >  };
> >
> > -static const char * const lcc_mi2s_parents[] = {
> > -       "mi2s_osr_src",
> > -};
> > -
> >  static struct clk_branch mi2s_osr_clk = {
> >         .halt_reg = 0x50,
> >         .halt_bit = 1,
> > @@ -152,7 +152,9 @@ static struct clk_branch mi2s_osr_clk = {
> >                 .enable_mask = BIT(17),
> >                 .hw.init = &(struct clk_init_data){
> >                         .name = "mi2s_osr_clk",
> > -                       .parent_names = lcc_mi2s_parents,
> > +                       .parent_hws = (const struct clk_hw*[]){
> > +                               &mi2s_osr_src.clkr.hw,
> > +                       },
> >                         .num_parents = 1,
> >                         .ops = &clk_branch_ops,
> >                         .flags = CLK_SET_RATE_PARENT,
> > @@ -167,7 +169,9 @@ static struct clk_regmap_div mi2s_div_clk = {
> >         .clkr = {
> >                 .hw.init = &(struct clk_init_data){
> >                         .name = "mi2s_div_clk",
> > -                       .parent_names = lcc_mi2s_parents,
> > +                       .parent_hws = (const struct clk_hw*[]){
> > +                               &mi2s_osr_src.clkr.hw,
> > +                       },
> >                         .num_parents = 1,
> >                         .ops = &clk_regmap_div_ops,
> >                 },
> > @@ -183,7 +187,9 @@ static struct clk_branch mi2s_bit_div_clk = {
> >                 .enable_mask = BIT(15),
> >                 .hw.init = &(struct clk_init_data){
> >                         .name = "mi2s_bit_div_clk",
> > -                       .parent_names = (const char *[]){ "mi2s_div_clk" },
> > +                       .parent_hws = (const struct clk_hw*[]){
> > +                               &mi2s_div_clk.clkr.hw,
> > +                       },
> >                         .num_parents = 1,
> >                         .ops = &clk_branch_ops,
> >                         .flags = CLK_SET_RATE_PARENT,
> > @@ -191,6 +197,10 @@ static struct clk_branch mi2s_bit_div_clk = {
> >         },
> >  };
> >
> > +static const struct clk_parent_data lcc_mi2s_bit_div_codec_clk[] = {
> > +       { .hw = &mi2s_bit_div_clk.clkr.hw, },
> > +       { .fw_name = "mi2s_codec_clk", .name = "mi2s_codec_clk" },
> > +};
> >
> >  static struct clk_regmap_mux mi2s_bit_clk = {
> >         .reg = 0x48,
> > @@ -199,11 +209,8 @@ static struct clk_regmap_mux mi2s_bit_clk = {
> >         .clkr = {
> >                 .hw.init = &(struct clk_init_data){
> >                         .name = "mi2s_bit_clk",
> > -                       .parent_names = (const char *[]){
> > -                               "mi2s_bit_div_clk",
> > -                               "mi2s_codec_clk",
> > -                       },
> > -                       .num_parents = 2,
> > +                       .parent_data = lcc_mi2s_bit_div_codec_clk,
> > +                       .num_parents = ARRAY_SIZE(lcc_mi2s_bit_div_codec_clk),
> >                         .ops = &clk_regmap_mux_closest_ops,
> >                         .flags = CLK_SET_RATE_PARENT,
> >                 },
> > @@ -245,8 +252,8 @@ static struct clk_rcg pcm_src = {
> >                 .enable_mask = BIT(9),
> >                 .hw.init = &(struct clk_init_data){
> >                         .name = "pcm_src",
> > -                       .parent_names = lcc_pxo_pll4,
> > -                       .num_parents = 2,
> > +                       .parent_data = lcc_pxo_pll4,
> > +                       .num_parents = ARRAY_SIZE(lcc_pxo_pll4),
> >                         .ops = &clk_rcg_ops,
> >                         .flags = CLK_SET_RATE_GATE,
> >                 },
> > @@ -262,7 +269,9 @@ static struct clk_branch pcm_clk_out = {
> >                 .enable_mask = BIT(11),
> >                 .hw.init = &(struct clk_init_data){
> >                         .name = "pcm_clk_out",
> > -                       .parent_names = (const char *[]){ "pcm_src" },
> > +                       .parent_hws = (const struct clk_hw*[]){
> > +                               &pcm_src.clkr.hw,
> > +                       },
> >                         .num_parents = 1,
> >                         .ops = &clk_branch_ops,
> >                         .flags = CLK_SET_RATE_PARENT,
> > @@ -270,6 +279,11 @@ static struct clk_branch pcm_clk_out = {
> >         },
> >  };
> >
> > +static const struct clk_parent_data lcc_pcm_clk_out_codec_clk[] = {
> > +       { .hw = &pcm_clk_out.clkr.hw, },
> > +       { .fw_name = "pcm_codec_clk", .name = "pcm_codec_clk" },
> > +};
> > +
> >  static struct clk_regmap_mux pcm_clk = {
> >         .reg = 0x54,
> >         .shift = 10,
> > @@ -277,11 +291,8 @@ static struct clk_regmap_mux pcm_clk = {
> >         .clkr = {
> >                 .hw.init = &(struct clk_init_data){
> >                         .name = "pcm_clk",
> > -                       .parent_names = (const char *[]){
> > -                               "pcm_clk_out",
> > -                               "pcm_codec_clk",
> > -                       },
> > -                       .num_parents = 2,
> > +                       .parent_data = lcc_pcm_clk_out_codec_clk,
> > +                       .num_parents = ARRAY_SIZE(lcc_pcm_clk_out_codec_clk),
> >                         .ops = &clk_regmap_mux_closest_ops,
> >                         .flags = CLK_SET_RATE_PARENT,
> >                 },
> > @@ -325,18 +336,14 @@ static struct clk_rcg spdif_src = {
> >                 .enable_mask = BIT(9),
> >                 .hw.init = &(struct clk_init_data){
> >                         .name = "spdif_src",
> > -                       .parent_names = lcc_pxo_pll4,
> > -                       .num_parents = 2,
> > +                       .parent_data = lcc_pxo_pll4,
> > +                       .num_parents = ARRAY_SIZE(lcc_pxo_pll4),
> >                         .ops = &clk_rcg_ops,
> >                         .flags = CLK_SET_RATE_GATE,
> >                 },
> >         },
> >  };
> >
> > -static const char * const lcc_spdif_parents[] = {
> > -       "spdif_src",
> > -};
> > -
> >  static struct clk_branch spdif_clk = {
> >         .halt_reg = 0xd4,
> >         .halt_bit = 1,
> > @@ -346,7 +353,9 @@ static struct clk_branch spdif_clk = {
> >                 .enable_mask = BIT(12),
> >                 .hw.init = &(struct clk_init_data){
> >                         .name = "spdif_clk",
> > -                       .parent_names = lcc_spdif_parents,
> > +                       .parent_hws = (const struct clk_hw*[]){
> > +                               &spdif_src.clkr.hw,
> > +                       },
> >                         .num_parents = 1,
> >                         .ops = &clk_branch_ops,
> >                         .flags = CLK_SET_RATE_PARENT,
> > @@ -384,8 +393,8 @@ static struct clk_rcg ahbix_clk = {
> >                 .enable_mask = BIT(11),
> >                 .hw.init = &(struct clk_init_data){
> >                         .name = "ahbix",
> > -                       .parent_names = lcc_pxo_pll4,
> > -                       .num_parents = 2,
> > +                       .parent_data = lcc_pxo_pll4,
> > +                       .num_parents = ARRAY_SIZE(lcc_pxo_pll4),
> >                         .ops = &clk_rcg_lcc_ops,
> >                 },
> >         },
> > --
> > 2.36.1
> >
> 
> 
> -- 
> With best wishes
> Dmitry
Dmitry Baryshkov June 21, 2022, 8:43 p.m. UTC | #3
On Tue, 21 Jun 2022 at 23:23, Christian Marangi <ansuelsmth@gmail.com> wrote:
>
> On Tue, Jun 21, 2022 at 08:15:57PM +0300, Dmitry Baryshkov wrote:
> > On Tue, 21 Jun 2022 at 19:33, Christian Marangi <ansuelsmth@gmail.com> wrote:
> > >
> > > Convert lcc-ipq806x driver to parent_data API.
> > >
> > > Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
> > > ---
> > > v2:
> > > - Fix Sob tag
> > >
> > >  drivers/clk/qcom/lcc-ipq806x.c | 79 +++++++++++++++++++---------------
> > >  1 file changed, 44 insertions(+), 35 deletions(-)
> > >
> > > diff --git a/drivers/clk/qcom/lcc-ipq806x.c b/drivers/clk/qcom/lcc-ipq806x.c
> > > index ba90bebba597..c07ca8dc6e3a 100644
> > > --- a/drivers/clk/qcom/lcc-ipq806x.c
> > > +++ b/drivers/clk/qcom/lcc-ipq806x.c
> > > @@ -24,6 +24,10 @@
> > >  #include "clk-regmap-mux.h"
> > >  #include "reset.h"
> > >
> > > +static const struct clk_parent_data gcc_pxo[] = {
> > > +       { .fw_name = "pxo", .name = "pxo" },
> >
> > I think you'd use .name = "pxo_board" here. You don't need to use the
> > interim clock.
> >
>
> In gcc and in the rest of this driver we use pxo. Wonder what is right?

I'd use .fw_name = "pxo", .name = "pxo_board", like the rest of drivers do.

>
> > > +};
> > > +
> > >  static struct clk_pll pll4 = {
> > >         .l_reg = 0x4,
> > >         .m_reg = 0x8,
> > > @@ -34,7 +38,7 @@ static struct clk_pll pll4 = {
> > >         .status_bit = 16,
> > >         .clkr.hw.init = &(struct clk_init_data){
> > >                 .name = "pll4",
> > > -               .parent_names = (const char *[]){ "pxo" },
> > > +               .parent_data = gcc_pxo,
> > >                 .num_parents = 1,
> >
> > Could you please either inline the gcc_pxo here (yes, it's ugly, but
> > it works for small arrays) or use ARRAY_SIZE here.
> >
>
> Yes will inline gcc_pxo.
>
> > >                 .ops = &clk_pll_ops,
> > >         },
> > > @@ -64,9 +68,9 @@ static const struct parent_map lcc_pxo_pll4_map[] = {
> > >         { P_PLL4, 2 }
> > >  };
> > >
> > > -static const char * const lcc_pxo_pll4[] = {
> > > -       "pxo",
> > > -       "pll4_vote",
> > > +static const struct clk_parent_data lcc_pxo_pll4[] = {
> > > +       { .fw_name = "pxo", .name = "pxo" },
> > > +       { .fw_name = "pll4_vote", .name = "pll4_vote" },
> > >  };
> > >
> > >  static struct freq_tbl clk_tbl_aif_mi2s[] = {
> > > @@ -131,18 +135,14 @@ static struct clk_rcg mi2s_osr_src = {
> > >                 .enable_mask = BIT(9),
> > >                 .hw.init = &(struct clk_init_data){
> > >                         .name = "mi2s_osr_src",
> > > -                       .parent_names = lcc_pxo_pll4,
> > > -                       .num_parents = 2,
> > > +                       .parent_data = lcc_pxo_pll4,
> > > +                       .num_parents = ARRAY_SIZE(lcc_pxo_pll4),
> > >                         .ops = &clk_rcg_ops,
> > >                         .flags = CLK_SET_RATE_GATE,
> > >                 },
> > >         },
> > >  };
> > >
> > > -static const char * const lcc_mi2s_parents[] = {
> > > -       "mi2s_osr_src",
> > > -};
> > > -
> > >  static struct clk_branch mi2s_osr_clk = {
> > >         .halt_reg = 0x50,
> > >         .halt_bit = 1,
> > > @@ -152,7 +152,9 @@ static struct clk_branch mi2s_osr_clk = {
> > >                 .enable_mask = BIT(17),
> > >                 .hw.init = &(struct clk_init_data){
> > >                         .name = "mi2s_osr_clk",
> > > -                       .parent_names = lcc_mi2s_parents,
> > > +                       .parent_hws = (const struct clk_hw*[]){
> > > +                               &mi2s_osr_src.clkr.hw,
> > > +                       },
> > >                         .num_parents = 1,
> > >                         .ops = &clk_branch_ops,
> > >                         .flags = CLK_SET_RATE_PARENT,
> > > @@ -167,7 +169,9 @@ static struct clk_regmap_div mi2s_div_clk = {
> > >         .clkr = {
> > >                 .hw.init = &(struct clk_init_data){
> > >                         .name = "mi2s_div_clk",
> > > -                       .parent_names = lcc_mi2s_parents,
> > > +                       .parent_hws = (const struct clk_hw*[]){
> > > +                               &mi2s_osr_src.clkr.hw,
> > > +                       },
> > >                         .num_parents = 1,
> > >                         .ops = &clk_regmap_div_ops,
> > >                 },
> > > @@ -183,7 +187,9 @@ static struct clk_branch mi2s_bit_div_clk = {
> > >                 .enable_mask = BIT(15),
> > >                 .hw.init = &(struct clk_init_data){
> > >                         .name = "mi2s_bit_div_clk",
> > > -                       .parent_names = (const char *[]){ "mi2s_div_clk" },
> > > +                       .parent_hws = (const struct clk_hw*[]){
> > > +                               &mi2s_div_clk.clkr.hw,
> > > +                       },
> > >                         .num_parents = 1,
> > >                         .ops = &clk_branch_ops,
> > >                         .flags = CLK_SET_RATE_PARENT,
> > > @@ -191,6 +197,10 @@ static struct clk_branch mi2s_bit_div_clk = {
> > >         },
> > >  };
> > >
> > > +static const struct clk_parent_data lcc_mi2s_bit_div_codec_clk[] = {
> > > +       { .hw = &mi2s_bit_div_clk.clkr.hw, },
> > > +       { .fw_name = "mi2s_codec_clk", .name = "mi2s_codec_clk" },
> > > +};
> > >
> > >  static struct clk_regmap_mux mi2s_bit_clk = {
> > >         .reg = 0x48,
> > > @@ -199,11 +209,8 @@ static struct clk_regmap_mux mi2s_bit_clk = {
> > >         .clkr = {
> > >                 .hw.init = &(struct clk_init_data){
> > >                         .name = "mi2s_bit_clk",
> > > -                       .parent_names = (const char *[]){
> > > -                               "mi2s_bit_div_clk",
> > > -                               "mi2s_codec_clk",
> > > -                       },
> > > -                       .num_parents = 2,
> > > +                       .parent_data = lcc_mi2s_bit_div_codec_clk,
> > > +                       .num_parents = ARRAY_SIZE(lcc_mi2s_bit_div_codec_clk),
> > >                         .ops = &clk_regmap_mux_closest_ops,
> > >                         .flags = CLK_SET_RATE_PARENT,
> > >                 },
> > > @@ -245,8 +252,8 @@ static struct clk_rcg pcm_src = {
> > >                 .enable_mask = BIT(9),
> > >                 .hw.init = &(struct clk_init_data){
> > >                         .name = "pcm_src",
> > > -                       .parent_names = lcc_pxo_pll4,
> > > -                       .num_parents = 2,
> > > +                       .parent_data = lcc_pxo_pll4,
> > > +                       .num_parents = ARRAY_SIZE(lcc_pxo_pll4),
> > >                         .ops = &clk_rcg_ops,
> > >                         .flags = CLK_SET_RATE_GATE,
> > >                 },
> > > @@ -262,7 +269,9 @@ static struct clk_branch pcm_clk_out = {
> > >                 .enable_mask = BIT(11),
> > >                 .hw.init = &(struct clk_init_data){
> > >                         .name = "pcm_clk_out",
> > > -                       .parent_names = (const char *[]){ "pcm_src" },
> > > +                       .parent_hws = (const struct clk_hw*[]){
> > > +                               &pcm_src.clkr.hw,
> > > +                       },
> > >                         .num_parents = 1,
> > >                         .ops = &clk_branch_ops,
> > >                         .flags = CLK_SET_RATE_PARENT,
> > > @@ -270,6 +279,11 @@ static struct clk_branch pcm_clk_out = {
> > >         },
> > >  };
> > >
> > > +static const struct clk_parent_data lcc_pcm_clk_out_codec_clk[] = {
> > > +       { .hw = &pcm_clk_out.clkr.hw, },
> > > +       { .fw_name = "pcm_codec_clk", .name = "pcm_codec_clk" },
> > > +};
> > > +
> > >  static struct clk_regmap_mux pcm_clk = {
> > >         .reg = 0x54,
> > >         .shift = 10,
> > > @@ -277,11 +291,8 @@ static struct clk_regmap_mux pcm_clk = {
> > >         .clkr = {
> > >                 .hw.init = &(struct clk_init_data){
> > >                         .name = "pcm_clk",
> > > -                       .parent_names = (const char *[]){
> > > -                               "pcm_clk_out",
> > > -                               "pcm_codec_clk",
> > > -                       },
> > > -                       .num_parents = 2,
> > > +                       .parent_data = lcc_pcm_clk_out_codec_clk,
> > > +                       .num_parents = ARRAY_SIZE(lcc_pcm_clk_out_codec_clk),
> > >                         .ops = &clk_regmap_mux_closest_ops,
> > >                         .flags = CLK_SET_RATE_PARENT,
> > >                 },
> > > @@ -325,18 +336,14 @@ static struct clk_rcg spdif_src = {
> > >                 .enable_mask = BIT(9),
> > >                 .hw.init = &(struct clk_init_data){
> > >                         .name = "spdif_src",
> > > -                       .parent_names = lcc_pxo_pll4,
> > > -                       .num_parents = 2,
> > > +                       .parent_data = lcc_pxo_pll4,
> > > +                       .num_parents = ARRAY_SIZE(lcc_pxo_pll4),
> > >                         .ops = &clk_rcg_ops,
> > >                         .flags = CLK_SET_RATE_GATE,
> > >                 },
> > >         },
> > >  };
> > >
> > > -static const char * const lcc_spdif_parents[] = {
> > > -       "spdif_src",
> > > -};
> > > -
> > >  static struct clk_branch spdif_clk = {
> > >         .halt_reg = 0xd4,
> > >         .halt_bit = 1,
> > > @@ -346,7 +353,9 @@ static struct clk_branch spdif_clk = {
> > >                 .enable_mask = BIT(12),
> > >                 .hw.init = &(struct clk_init_data){
> > >                         .name = "spdif_clk",
> > > -                       .parent_names = lcc_spdif_parents,
> > > +                       .parent_hws = (const struct clk_hw*[]){
> > > +                               &spdif_src.clkr.hw,
> > > +                       },
> > >                         .num_parents = 1,
> > >                         .ops = &clk_branch_ops,
> > >                         .flags = CLK_SET_RATE_PARENT,
> > > @@ -384,8 +393,8 @@ static struct clk_rcg ahbix_clk = {
> > >                 .enable_mask = BIT(11),
> > >                 .hw.init = &(struct clk_init_data){
> > >                         .name = "ahbix",
> > > -                       .parent_names = lcc_pxo_pll4,
> > > -                       .num_parents = 2,
> > > +                       .parent_data = lcc_pxo_pll4,
> > > +                       .num_parents = ARRAY_SIZE(lcc_pxo_pll4),
> > >                         .ops = &clk_rcg_lcc_ops,
> > >                 },
> > >         },
> > > --
> > > 2.36.1
> > >
> >
> >
> > --
> > With best wishes
> > Dmitry
>
> --
>         Ansuel
Christian Marangi July 5, 2022, 8:21 p.m. UTC | #4
On Tue, Jun 21, 2022 at 11:43:10PM +0300, Dmitry Baryshkov wrote:
> On Tue, 21 Jun 2022 at 23:23, Christian Marangi <ansuelsmth@gmail.com> wrote:
> >
> > On Tue, Jun 21, 2022 at 08:15:57PM +0300, Dmitry Baryshkov wrote:
> > > On Tue, 21 Jun 2022 at 19:33, Christian Marangi <ansuelsmth@gmail.com> wrote:
> > > >
> > > > Convert lcc-ipq806x driver to parent_data API.
> > > >
> > > > Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
> > > > ---
> > > > v2:
> > > > - Fix Sob tag
> > > >
> > > >  drivers/clk/qcom/lcc-ipq806x.c | 79 +++++++++++++++++++---------------
> > > >  1 file changed, 44 insertions(+), 35 deletions(-)
> > > >
> > > > diff --git a/drivers/clk/qcom/lcc-ipq806x.c b/drivers/clk/qcom/lcc-ipq806x.c
> > > > index ba90bebba597..c07ca8dc6e3a 100644
> > > > --- a/drivers/clk/qcom/lcc-ipq806x.c
> > > > +++ b/drivers/clk/qcom/lcc-ipq806x.c
> > > > @@ -24,6 +24,10 @@
> > > >  #include "clk-regmap-mux.h"
> > > >  #include "reset.h"
> > > >
> > > > +static const struct clk_parent_data gcc_pxo[] = {
> > > > +       { .fw_name = "pxo", .name = "pxo" },
> > >
> > > I think you'd use .name = "pxo_board" here. You don't need to use the
> > > interim clock.
> > >
> >
> > In gcc and in the rest of this driver we use pxo. Wonder what is right?
> 
> I'd use .fw_name = "pxo", .name = "pxo_board", like the rest of drivers do.
>

Will do the change, but I need an explaination... Is the use of
pxo_board correct?

I'm sending a patch that sets the pxo_board fixed clock in dts to output
"pxo". The only clock that still use pxo_board is rpm, everything else
at least for ipq806x use pxo and i'm sending a patch to use pxo for rpm.

Considering pxo is always present and pxo_board should be dropped
because every ipq806x driver use "pxo".

What is correct naming pxo or pxo_board? I assume pxo right?

> >
> > > > +};
> > > > +
> > > >  static struct clk_pll pll4 = {
> > > >         .l_reg = 0x4,
> > > >         .m_reg = 0x8,
> > > > @@ -34,7 +38,7 @@ static struct clk_pll pll4 = {
> > > >         .status_bit = 16,
> > > >         .clkr.hw.init = &(struct clk_init_data){
> > > >                 .name = "pll4",
> > > > -               .parent_names = (const char *[]){ "pxo" },
> > > > +               .parent_data = gcc_pxo,
> > > >                 .num_parents = 1,
> > >
> > > Could you please either inline the gcc_pxo here (yes, it's ugly, but
> > > it works for small arrays) or use ARRAY_SIZE here.
> > >
> >
> > Yes will inline gcc_pxo.
> >
> > > >                 .ops = &clk_pll_ops,
> > > >         },
> > > > @@ -64,9 +68,9 @@ static const struct parent_map lcc_pxo_pll4_map[] = {
> > > >         { P_PLL4, 2 }
> > > >  };
> > > >
> > > > -static const char * const lcc_pxo_pll4[] = {
> > > > -       "pxo",
> > > > -       "pll4_vote",
> > > > +static const struct clk_parent_data lcc_pxo_pll4[] = {
> > > > +       { .fw_name = "pxo", .name = "pxo" },
> > > > +       { .fw_name = "pll4_vote", .name = "pll4_vote" },
> > > >  };
> > > >
> > > >  static struct freq_tbl clk_tbl_aif_mi2s[] = {
> > > > @@ -131,18 +135,14 @@ static struct clk_rcg mi2s_osr_src = {
> > > >                 .enable_mask = BIT(9),
> > > >                 .hw.init = &(struct clk_init_data){
> > > >                         .name = "mi2s_osr_src",
> > > > -                       .parent_names = lcc_pxo_pll4,
> > > > -                       .num_parents = 2,
> > > > +                       .parent_data = lcc_pxo_pll4,
> > > > +                       .num_parents = ARRAY_SIZE(lcc_pxo_pll4),
> > > >                         .ops = &clk_rcg_ops,
> > > >                         .flags = CLK_SET_RATE_GATE,
> > > >                 },
> > > >         },
> > > >  };
> > > >
> > > > -static const char * const lcc_mi2s_parents[] = {
> > > > -       "mi2s_osr_src",
> > > > -};
> > > > -
> > > >  static struct clk_branch mi2s_osr_clk = {
> > > >         .halt_reg = 0x50,
> > > >         .halt_bit = 1,
> > > > @@ -152,7 +152,9 @@ static struct clk_branch mi2s_osr_clk = {
> > > >                 .enable_mask = BIT(17),
> > > >                 .hw.init = &(struct clk_init_data){
> > > >                         .name = "mi2s_osr_clk",
> > > > -                       .parent_names = lcc_mi2s_parents,
> > > > +                       .parent_hws = (const struct clk_hw*[]){
> > > > +                               &mi2s_osr_src.clkr.hw,
> > > > +                       },
> > > >                         .num_parents = 1,
> > > >                         .ops = &clk_branch_ops,
> > > >                         .flags = CLK_SET_RATE_PARENT,
> > > > @@ -167,7 +169,9 @@ static struct clk_regmap_div mi2s_div_clk = {
> > > >         .clkr = {
> > > >                 .hw.init = &(struct clk_init_data){
> > > >                         .name = "mi2s_div_clk",
> > > > -                       .parent_names = lcc_mi2s_parents,
> > > > +                       .parent_hws = (const struct clk_hw*[]){
> > > > +                               &mi2s_osr_src.clkr.hw,
> > > > +                       },
> > > >                         .num_parents = 1,
> > > >                         .ops = &clk_regmap_div_ops,
> > > >                 },
> > > > @@ -183,7 +187,9 @@ static struct clk_branch mi2s_bit_div_clk = {
> > > >                 .enable_mask = BIT(15),
> > > >                 .hw.init = &(struct clk_init_data){
> > > >                         .name = "mi2s_bit_div_clk",
> > > > -                       .parent_names = (const char *[]){ "mi2s_div_clk" },
> > > > +                       .parent_hws = (const struct clk_hw*[]){
> > > > +                               &mi2s_div_clk.clkr.hw,
> > > > +                       },
> > > >                         .num_parents = 1,
> > > >                         .ops = &clk_branch_ops,
> > > >                         .flags = CLK_SET_RATE_PARENT,
> > > > @@ -191,6 +197,10 @@ static struct clk_branch mi2s_bit_div_clk = {
> > > >         },
> > > >  };
> > > >
> > > > +static const struct clk_parent_data lcc_mi2s_bit_div_codec_clk[] = {
> > > > +       { .hw = &mi2s_bit_div_clk.clkr.hw, },
> > > > +       { .fw_name = "mi2s_codec_clk", .name = "mi2s_codec_clk" },
> > > > +};
> > > >
> > > >  static struct clk_regmap_mux mi2s_bit_clk = {
> > > >         .reg = 0x48,
> > > > @@ -199,11 +209,8 @@ static struct clk_regmap_mux mi2s_bit_clk = {
> > > >         .clkr = {
> > > >                 .hw.init = &(struct clk_init_data){
> > > >                         .name = "mi2s_bit_clk",
> > > > -                       .parent_names = (const char *[]){
> > > > -                               "mi2s_bit_div_clk",
> > > > -                               "mi2s_codec_clk",
> > > > -                       },
> > > > -                       .num_parents = 2,
> > > > +                       .parent_data = lcc_mi2s_bit_div_codec_clk,
> > > > +                       .num_parents = ARRAY_SIZE(lcc_mi2s_bit_div_codec_clk),
> > > >                         .ops = &clk_regmap_mux_closest_ops,
> > > >                         .flags = CLK_SET_RATE_PARENT,
> > > >                 },
> > > > @@ -245,8 +252,8 @@ static struct clk_rcg pcm_src = {
> > > >                 .enable_mask = BIT(9),
> > > >                 .hw.init = &(struct clk_init_data){
> > > >                         .name = "pcm_src",
> > > > -                       .parent_names = lcc_pxo_pll4,
> > > > -                       .num_parents = 2,
> > > > +                       .parent_data = lcc_pxo_pll4,
> > > > +                       .num_parents = ARRAY_SIZE(lcc_pxo_pll4),
> > > >                         .ops = &clk_rcg_ops,
> > > >                         .flags = CLK_SET_RATE_GATE,
> > > >                 },
> > > > @@ -262,7 +269,9 @@ static struct clk_branch pcm_clk_out = {
> > > >                 .enable_mask = BIT(11),
> > > >                 .hw.init = &(struct clk_init_data){
> > > >                         .name = "pcm_clk_out",
> > > > -                       .parent_names = (const char *[]){ "pcm_src" },
> > > > +                       .parent_hws = (const struct clk_hw*[]){
> > > > +                               &pcm_src.clkr.hw,
> > > > +                       },
> > > >                         .num_parents = 1,
> > > >                         .ops = &clk_branch_ops,
> > > >                         .flags = CLK_SET_RATE_PARENT,
> > > > @@ -270,6 +279,11 @@ static struct clk_branch pcm_clk_out = {
> > > >         },
> > > >  };
> > > >
> > > > +static const struct clk_parent_data lcc_pcm_clk_out_codec_clk[] = {
> > > > +       { .hw = &pcm_clk_out.clkr.hw, },
> > > > +       { .fw_name = "pcm_codec_clk", .name = "pcm_codec_clk" },
> > > > +};
> > > > +
> > > >  static struct clk_regmap_mux pcm_clk = {
> > > >         .reg = 0x54,
> > > >         .shift = 10,
> > > > @@ -277,11 +291,8 @@ static struct clk_regmap_mux pcm_clk = {
> > > >         .clkr = {
> > > >                 .hw.init = &(struct clk_init_data){
> > > >                         .name = "pcm_clk",
> > > > -                       .parent_names = (const char *[]){
> > > > -                               "pcm_clk_out",
> > > > -                               "pcm_codec_clk",
> > > > -                       },
> > > > -                       .num_parents = 2,
> > > > +                       .parent_data = lcc_pcm_clk_out_codec_clk,
> > > > +                       .num_parents = ARRAY_SIZE(lcc_pcm_clk_out_codec_clk),
> > > >                         .ops = &clk_regmap_mux_closest_ops,
> > > >                         .flags = CLK_SET_RATE_PARENT,
> > > >                 },
> > > > @@ -325,18 +336,14 @@ static struct clk_rcg spdif_src = {
> > > >                 .enable_mask = BIT(9),
> > > >                 .hw.init = &(struct clk_init_data){
> > > >                         .name = "spdif_src",
> > > > -                       .parent_names = lcc_pxo_pll4,
> > > > -                       .num_parents = 2,
> > > > +                       .parent_data = lcc_pxo_pll4,
> > > > +                       .num_parents = ARRAY_SIZE(lcc_pxo_pll4),
> > > >                         .ops = &clk_rcg_ops,
> > > >                         .flags = CLK_SET_RATE_GATE,
> > > >                 },
> > > >         },
> > > >  };
> > > >
> > > > -static const char * const lcc_spdif_parents[] = {
> > > > -       "spdif_src",
> > > > -};
> > > > -
> > > >  static struct clk_branch spdif_clk = {
> > > >         .halt_reg = 0xd4,
> > > >         .halt_bit = 1,
> > > > @@ -346,7 +353,9 @@ static struct clk_branch spdif_clk = {
> > > >                 .enable_mask = BIT(12),
> > > >                 .hw.init = &(struct clk_init_data){
> > > >                         .name = "spdif_clk",
> > > > -                       .parent_names = lcc_spdif_parents,
> > > > +                       .parent_hws = (const struct clk_hw*[]){
> > > > +                               &spdif_src.clkr.hw,
> > > > +                       },
> > > >                         .num_parents = 1,
> > > >                         .ops = &clk_branch_ops,
> > > >                         .flags = CLK_SET_RATE_PARENT,
> > > > @@ -384,8 +393,8 @@ static struct clk_rcg ahbix_clk = {
> > > >                 .enable_mask = BIT(11),
> > > >                 .hw.init = &(struct clk_init_data){
> > > >                         .name = "ahbix",
> > > > -                       .parent_names = lcc_pxo_pll4,
> > > > -                       .num_parents = 2,
> > > > +                       .parent_data = lcc_pxo_pll4,
> > > > +                       .num_parents = ARRAY_SIZE(lcc_pxo_pll4),
> > > >                         .ops = &clk_rcg_lcc_ops,
> > > >                 },
> > > >         },
> > > > --
> > > > 2.36.1
> > > >
> > >
> > >
> > > --
> > > With best wishes
> > > Dmitry
> >
> > --
> >         Ansuel
> 
> 
> 
> -- 
> With best wishes
> Dmitry
Dmitry Baryshkov July 6, 2022, 7:34 a.m. UTC | #5
On Tue, 5 Jul 2022 at 23:48, Christian Marangi <ansuelsmth@gmail.com> wrote:
>
> On Tue, Jun 21, 2022 at 11:43:10PM +0300, Dmitry Baryshkov wrote:
> > On Tue, 21 Jun 2022 at 23:23, Christian Marangi <ansuelsmth@gmail.com> wrote:
> > >
> > > On Tue, Jun 21, 2022 at 08:15:57PM +0300, Dmitry Baryshkov wrote:
> > > > On Tue, 21 Jun 2022 at 19:33, Christian Marangi <ansuelsmth@gmail.com> wrote:
> > > > >
> > > > > Convert lcc-ipq806x driver to parent_data API.
> > > > >
> > > > > Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
> > > > > ---
> > > > > v2:
> > > > > - Fix Sob tag
> > > > >
> > > > >  drivers/clk/qcom/lcc-ipq806x.c | 79 +++++++++++++++++++---------------
> > > > >  1 file changed, 44 insertions(+), 35 deletions(-)
> > > > >
> > > > > diff --git a/drivers/clk/qcom/lcc-ipq806x.c b/drivers/clk/qcom/lcc-ipq806x.c
> > > > > index ba90bebba597..c07ca8dc6e3a 100644
> > > > > --- a/drivers/clk/qcom/lcc-ipq806x.c
> > > > > +++ b/drivers/clk/qcom/lcc-ipq806x.c
> > > > > @@ -24,6 +24,10 @@
> > > > >  #include "clk-regmap-mux.h"
> > > > >  #include "reset.h"
> > > > >
> > > > > +static const struct clk_parent_data gcc_pxo[] = {
> > > > > +       { .fw_name = "pxo", .name = "pxo" },
> > > >
> > > > I think you'd use .name = "pxo_board" here. You don't need to use the
> > > > interim clock.
> > > >
> > >
> > > In gcc and in the rest of this driver we use pxo. Wonder what is right?
> >
> > I'd use .fw_name = "pxo", .name = "pxo_board", like the rest of drivers do.
> >
>
> Will do the change, but I need an explaination... Is the use of
> pxo_board correct?
>
> I'm sending a patch that sets the pxo_board fixed clock in dts to output
> "pxo". The only clock that still use pxo_board is rpm, everything else
> at least for ipq806x use pxo and i'm sending a patch to use pxo for rpm.
>
> Considering pxo is always present and pxo_board should be dropped
> because every ipq806x driver use "pxo".
>
> What is correct naming pxo or pxo_board? I assume pxo right?

This might be not the case for the ipq806x, but here is the story for
all other (old) platforms:
- gcc driver manually registered pxo/cxo/xo fixed factor clocks.
- Then we started adding *xo_board clocks to the DT, as they represent
the external oscillators
-  PXO clock consumers receive a clocks entry with clock-names = "pxo"
which points to the pxo_board
- All clock drivers are now being switched to use .fw_name = "pxo",
.name = "pxo_board" to use the DT-defined pxo_board clock.

Hopefully at some point we can then drop the manually registered pxo
clock and always use the DT-based one.
Christian Marangi July 6, 2022, 10:07 a.m. UTC | #6
On Wed, Jul 06, 2022 at 10:34:04AM +0300, Dmitry Baryshkov wrote:
> On Tue, 5 Jul 2022 at 23:48, Christian Marangi <ansuelsmth@gmail.com> wrote:
> >
> > On Tue, Jun 21, 2022 at 11:43:10PM +0300, Dmitry Baryshkov wrote:
> > > On Tue, 21 Jun 2022 at 23:23, Christian Marangi <ansuelsmth@gmail.com> wrote:
> > > >
> > > > On Tue, Jun 21, 2022 at 08:15:57PM +0300, Dmitry Baryshkov wrote:
> > > > > On Tue, 21 Jun 2022 at 19:33, Christian Marangi <ansuelsmth@gmail.com> wrote:
> > > > > >
> > > > > > Convert lcc-ipq806x driver to parent_data API.
> > > > > >
> > > > > > Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
> > > > > > ---
> > > > > > v2:
> > > > > > - Fix Sob tag
> > > > > >
> > > > > >  drivers/clk/qcom/lcc-ipq806x.c | 79 +++++++++++++++++++---------------
> > > > > >  1 file changed, 44 insertions(+), 35 deletions(-)
> > > > > >
> > > > > > diff --git a/drivers/clk/qcom/lcc-ipq806x.c b/drivers/clk/qcom/lcc-ipq806x.c
> > > > > > index ba90bebba597..c07ca8dc6e3a 100644
> > > > > > --- a/drivers/clk/qcom/lcc-ipq806x.c
> > > > > > +++ b/drivers/clk/qcom/lcc-ipq806x.c
> > > > > > @@ -24,6 +24,10 @@
> > > > > >  #include "clk-regmap-mux.h"
> > > > > >  #include "reset.h"
> > > > > >
> > > > > > +static const struct clk_parent_data gcc_pxo[] = {
> > > > > > +       { .fw_name = "pxo", .name = "pxo" },
> > > > >
> > > > > I think you'd use .name = "pxo_board" here. You don't need to use the
> > > > > interim clock.
> > > > >
> > > >
> > > > In gcc and in the rest of this driver we use pxo. Wonder what is right?
> > >
> > > I'd use .fw_name = "pxo", .name = "pxo_board", like the rest of drivers do.
> > >
> >
> > Will do the change, but I need an explaination... Is the use of
> > pxo_board correct?
> >
> > I'm sending a patch that sets the pxo_board fixed clock in dts to output
> > "pxo". The only clock that still use pxo_board is rpm, everything else
> > at least for ipq806x use pxo and i'm sending a patch to use pxo for rpm.
> >
> > Considering pxo is always present and pxo_board should be dropped
> > because every ipq806x driver use "pxo".
> >
> > What is correct naming pxo or pxo_board? I assume pxo right?
> 
> This might be not the case for the ipq806x, but here is the story for
> all other (old) platforms:
> - gcc driver manually registered pxo/cxo/xo fixed factor clocks.
> - Then we started adding *xo_board clocks to the DT, as they represent
> the external oscillators
> -  PXO clock consumers receive a clocks entry with clock-names = "pxo"
> which points to the pxo_board
> - All clock drivers are now being switched to use .fw_name = "pxo",
> .name = "pxo_board" to use the DT-defined pxo_board clock.
> 
> Hopefully at some point we can then drop the manually registered pxo
> clock and always use the DT-based one.
>

Okok. I got confused since looking at the code factor clock is really
just a hack to handle both driver that use pxo_board and pxo cause from
what I notice it's the same clock with different naming.

Sooo keep using pxo_board with the fact that pxo is always present seems
to be redundant but if that's the pattern then I will just keep
pxo_board in .name where it's used.

> -- 
> With best wishes
> Dmitry
diff mbox series

Patch

diff --git a/drivers/clk/qcom/lcc-ipq806x.c b/drivers/clk/qcom/lcc-ipq806x.c
index ba90bebba597..c07ca8dc6e3a 100644
--- a/drivers/clk/qcom/lcc-ipq806x.c
+++ b/drivers/clk/qcom/lcc-ipq806x.c
@@ -24,6 +24,10 @@ 
 #include "clk-regmap-mux.h"
 #include "reset.h"
 
+static const struct clk_parent_data gcc_pxo[] = {
+	{ .fw_name = "pxo", .name = "pxo" },
+};
+
 static struct clk_pll pll4 = {
 	.l_reg = 0x4,
 	.m_reg = 0x8,
@@ -34,7 +38,7 @@  static struct clk_pll pll4 = {
 	.status_bit = 16,
 	.clkr.hw.init = &(struct clk_init_data){
 		.name = "pll4",
-		.parent_names = (const char *[]){ "pxo" },
+		.parent_data = gcc_pxo,
 		.num_parents = 1,
 		.ops = &clk_pll_ops,
 	},
@@ -64,9 +68,9 @@  static const struct parent_map lcc_pxo_pll4_map[] = {
 	{ P_PLL4, 2 }
 };
 
-static const char * const lcc_pxo_pll4[] = {
-	"pxo",
-	"pll4_vote",
+static const struct clk_parent_data lcc_pxo_pll4[] = {
+	{ .fw_name = "pxo", .name = "pxo" },
+	{ .fw_name = "pll4_vote", .name = "pll4_vote" },
 };
 
 static struct freq_tbl clk_tbl_aif_mi2s[] = {
@@ -131,18 +135,14 @@  static struct clk_rcg mi2s_osr_src = {
 		.enable_mask = BIT(9),
 		.hw.init = &(struct clk_init_data){
 			.name = "mi2s_osr_src",
-			.parent_names = lcc_pxo_pll4,
-			.num_parents = 2,
+			.parent_data = lcc_pxo_pll4,
+			.num_parents = ARRAY_SIZE(lcc_pxo_pll4),
 			.ops = &clk_rcg_ops,
 			.flags = CLK_SET_RATE_GATE,
 		},
 	},
 };
 
-static const char * const lcc_mi2s_parents[] = {
-	"mi2s_osr_src",
-};
-
 static struct clk_branch mi2s_osr_clk = {
 	.halt_reg = 0x50,
 	.halt_bit = 1,
@@ -152,7 +152,9 @@  static struct clk_branch mi2s_osr_clk = {
 		.enable_mask = BIT(17),
 		.hw.init = &(struct clk_init_data){
 			.name = "mi2s_osr_clk",
-			.parent_names = lcc_mi2s_parents,
+			.parent_hws = (const struct clk_hw*[]){
+				&mi2s_osr_src.clkr.hw,
+			},
 			.num_parents = 1,
 			.ops = &clk_branch_ops,
 			.flags = CLK_SET_RATE_PARENT,
@@ -167,7 +169,9 @@  static struct clk_regmap_div mi2s_div_clk = {
 	.clkr = {
 		.hw.init = &(struct clk_init_data){
 			.name = "mi2s_div_clk",
-			.parent_names = lcc_mi2s_parents,
+			.parent_hws = (const struct clk_hw*[]){
+				&mi2s_osr_src.clkr.hw,
+			},
 			.num_parents = 1,
 			.ops = &clk_regmap_div_ops,
 		},
@@ -183,7 +187,9 @@  static struct clk_branch mi2s_bit_div_clk = {
 		.enable_mask = BIT(15),
 		.hw.init = &(struct clk_init_data){
 			.name = "mi2s_bit_div_clk",
-			.parent_names = (const char *[]){ "mi2s_div_clk" },
+			.parent_hws = (const struct clk_hw*[]){
+				&mi2s_div_clk.clkr.hw,
+			},
 			.num_parents = 1,
 			.ops = &clk_branch_ops,
 			.flags = CLK_SET_RATE_PARENT,
@@ -191,6 +197,10 @@  static struct clk_branch mi2s_bit_div_clk = {
 	},
 };
 
+static const struct clk_parent_data lcc_mi2s_bit_div_codec_clk[] = {
+	{ .hw = &mi2s_bit_div_clk.clkr.hw, },
+	{ .fw_name = "mi2s_codec_clk", .name = "mi2s_codec_clk" },
+};
 
 static struct clk_regmap_mux mi2s_bit_clk = {
 	.reg = 0x48,
@@ -199,11 +209,8 @@  static struct clk_regmap_mux mi2s_bit_clk = {
 	.clkr = {
 		.hw.init = &(struct clk_init_data){
 			.name = "mi2s_bit_clk",
-			.parent_names = (const char *[]){
-				"mi2s_bit_div_clk",
-				"mi2s_codec_clk",
-			},
-			.num_parents = 2,
+			.parent_data = lcc_mi2s_bit_div_codec_clk,
+			.num_parents = ARRAY_SIZE(lcc_mi2s_bit_div_codec_clk),
 			.ops = &clk_regmap_mux_closest_ops,
 			.flags = CLK_SET_RATE_PARENT,
 		},
@@ -245,8 +252,8 @@  static struct clk_rcg pcm_src = {
 		.enable_mask = BIT(9),
 		.hw.init = &(struct clk_init_data){
 			.name = "pcm_src",
-			.parent_names = lcc_pxo_pll4,
-			.num_parents = 2,
+			.parent_data = lcc_pxo_pll4,
+			.num_parents = ARRAY_SIZE(lcc_pxo_pll4),
 			.ops = &clk_rcg_ops,
 			.flags = CLK_SET_RATE_GATE,
 		},
@@ -262,7 +269,9 @@  static struct clk_branch pcm_clk_out = {
 		.enable_mask = BIT(11),
 		.hw.init = &(struct clk_init_data){
 			.name = "pcm_clk_out",
-			.parent_names = (const char *[]){ "pcm_src" },
+			.parent_hws = (const struct clk_hw*[]){
+				&pcm_src.clkr.hw,
+			},
 			.num_parents = 1,
 			.ops = &clk_branch_ops,
 			.flags = CLK_SET_RATE_PARENT,
@@ -270,6 +279,11 @@  static struct clk_branch pcm_clk_out = {
 	},
 };
 
+static const struct clk_parent_data lcc_pcm_clk_out_codec_clk[] = {
+	{ .hw = &pcm_clk_out.clkr.hw, },
+	{ .fw_name = "pcm_codec_clk", .name = "pcm_codec_clk" },
+};
+
 static struct clk_regmap_mux pcm_clk = {
 	.reg = 0x54,
 	.shift = 10,
@@ -277,11 +291,8 @@  static struct clk_regmap_mux pcm_clk = {
 	.clkr = {
 		.hw.init = &(struct clk_init_data){
 			.name = "pcm_clk",
-			.parent_names = (const char *[]){
-				"pcm_clk_out",
-				"pcm_codec_clk",
-			},
-			.num_parents = 2,
+			.parent_data = lcc_pcm_clk_out_codec_clk,
+			.num_parents = ARRAY_SIZE(lcc_pcm_clk_out_codec_clk),
 			.ops = &clk_regmap_mux_closest_ops,
 			.flags = CLK_SET_RATE_PARENT,
 		},
@@ -325,18 +336,14 @@  static struct clk_rcg spdif_src = {
 		.enable_mask = BIT(9),
 		.hw.init = &(struct clk_init_data){
 			.name = "spdif_src",
-			.parent_names = lcc_pxo_pll4,
-			.num_parents = 2,
+			.parent_data = lcc_pxo_pll4,
+			.num_parents = ARRAY_SIZE(lcc_pxo_pll4),
 			.ops = &clk_rcg_ops,
 			.flags = CLK_SET_RATE_GATE,
 		},
 	},
 };
 
-static const char * const lcc_spdif_parents[] = {
-	"spdif_src",
-};
-
 static struct clk_branch spdif_clk = {
 	.halt_reg = 0xd4,
 	.halt_bit = 1,
@@ -346,7 +353,9 @@  static struct clk_branch spdif_clk = {
 		.enable_mask = BIT(12),
 		.hw.init = &(struct clk_init_data){
 			.name = "spdif_clk",
-			.parent_names = lcc_spdif_parents,
+			.parent_hws = (const struct clk_hw*[]){
+				&spdif_src.clkr.hw,
+			},
 			.num_parents = 1,
 			.ops = &clk_branch_ops,
 			.flags = CLK_SET_RATE_PARENT,
@@ -384,8 +393,8 @@  static struct clk_rcg ahbix_clk = {
 		.enable_mask = BIT(11),
 		.hw.init = &(struct clk_init_data){
 			.name = "ahbix",
-			.parent_names = lcc_pxo_pll4,
-			.num_parents = 2,
+			.parent_data = lcc_pxo_pll4,
+			.num_parents = ARRAY_SIZE(lcc_pxo_pll4),
 			.ops = &clk_rcg_lcc_ops,
 		},
 	},