diff mbox series

[v5,1/3] clk: qcom: clk-alpha-pll: add support for APSS PLL

Message ID 20220705191017.1683716-1-robimarko@gmail.com (mailing list archive)
State Changes Requested
Headers show
Series [v5,1/3] clk: qcom: clk-alpha-pll: add support for APSS PLL | expand

Commit Message

Robert Marko July 5, 2022, 7:10 p.m. UTC
APSS PLL type will be used by the IPQ8074 APSS driver for providing the
CPU core clocks and enabling CPU Frequency scaling.

This is ported from the downstream 5.4 kernel.

Signed-off-by: Robert Marko <robimarko@gmail.com>
---
 drivers/clk/qcom/clk-alpha-pll.c | 12 ++++++++++++
 drivers/clk/qcom/clk-alpha-pll.h |  1 +
 2 files changed, 13 insertions(+)

Comments

Konrad Dybcio July 6, 2022, 1:14 p.m. UTC | #1
On 5.07.2022 21:10, Robert Marko wrote:
> APSS PLL type will be used by the IPQ8074 APSS driver for providing the
> CPU core clocks and enabling CPU Frequency scaling.
> 
> This is ported from the downstream 5.4 kernel.
> 
> Signed-off-by: Robert Marko <robimarko@gmail.com>
> ---
>  drivers/clk/qcom/clk-alpha-pll.c | 12 ++++++++++++
>  drivers/clk/qcom/clk-alpha-pll.h |  1 +
>  2 files changed, 13 insertions(+)
> 
> diff --git a/drivers/clk/qcom/clk-alpha-pll.c b/drivers/clk/qcom/clk-alpha-pll.c
> index 4406cf609aae..8270363ff98e 100644
> --- a/drivers/clk/qcom/clk-alpha-pll.c
> +++ b/drivers/clk/qcom/clk-alpha-pll.c
> @@ -154,6 +154,18 @@ const u8 clk_alpha_pll_regs[][PLL_OFF_MAX_REGS] = {
>  		[PLL_OFF_TEST_CTL_U] = 0x30,
>  		[PLL_OFF_TEST_CTL_U1] = 0x34,
>  	},
> +	[CLK_ALPHA_PLL_TYPE_APSS] = {
The name is surely not correct, can somebody from qcom chime in
and suggest what it should be?

Konrad
> +		[PLL_OFF_L_VAL] = 0x08,
> +		[PLL_OFF_ALPHA_VAL] = 0x10,
> +		[PLL_OFF_ALPHA_VAL_U] = 0xff,
> +		[PLL_OFF_USER_CTL] = 0x18,
> +		[PLL_OFF_USER_CTL_U] = 0xff,
> +		[PLL_OFF_CONFIG_CTL] = 0x20,
> +		[PLL_OFF_CONFIG_CTL_U] = 0x24,
> +		[PLL_OFF_TEST_CTL] = 0x30,
> +		[PLL_OFF_TEST_CTL_U] = 0x34,
> +		[PLL_OFF_STATUS] = 0x28,
> +	},
>  };
>  EXPORT_SYMBOL_GPL(clk_alpha_pll_regs);
>  
> diff --git a/drivers/clk/qcom/clk-alpha-pll.h b/drivers/clk/qcom/clk-alpha-pll.h
> index 6e9907deaf30..626fdf80336d 100644
> --- a/drivers/clk/qcom/clk-alpha-pll.h
> +++ b/drivers/clk/qcom/clk-alpha-pll.h
> @@ -18,6 +18,7 @@ enum {
>  	CLK_ALPHA_PLL_TYPE_AGERA,
>  	CLK_ALPHA_PLL_TYPE_ZONDA,
>  	CLK_ALPHA_PLL_TYPE_LUCID_EVO,
> +	CLK_ALPHA_PLL_TYPE_APSS,
>  	CLK_ALPHA_PLL_TYPE_MAX,
>  };
>
Robert Marko July 8, 2022, 1:19 p.m. UTC | #2
On Wed, 6 Jul 2022 at 15:14, Konrad Dybcio <konrad.dybcio@somainline.org> wrote:
>
>
>
> On 5.07.2022 21:10, Robert Marko wrote:
> > APSS PLL type will be used by the IPQ8074 APSS driver for providing the
> > CPU core clocks and enabling CPU Frequency scaling.
> >
> > This is ported from the downstream 5.4 kernel.
> >
> > Signed-off-by: Robert Marko <robimarko@gmail.com>
> > ---
> >  drivers/clk/qcom/clk-alpha-pll.c | 12 ++++++++++++
> >  drivers/clk/qcom/clk-alpha-pll.h |  1 +
> >  2 files changed, 13 insertions(+)
> >
> > diff --git a/drivers/clk/qcom/clk-alpha-pll.c b/drivers/clk/qcom/clk-alpha-pll.c
> > index 4406cf609aae..8270363ff98e 100644
> > --- a/drivers/clk/qcom/clk-alpha-pll.c
> > +++ b/drivers/clk/qcom/clk-alpha-pll.c
> > @@ -154,6 +154,18 @@ const u8 clk_alpha_pll_regs[][PLL_OFF_MAX_REGS] = {
> >               [PLL_OFF_TEST_CTL_U] = 0x30,
> >               [PLL_OFF_TEST_CTL_U1] = 0x34,
> >       },
> > +     [CLK_ALPHA_PLL_TYPE_APSS] = {
> The name is surely not correct, can somebody from qcom chime in
> and suggest what it should be?

Hi Konrad,
That is how Qualcomm refers to the type in the downstream 4.4 and 5.4 kernels.
I dont have any other reference to the name unless somebody from
Qualcomm can chime in.

Regards,
Robert
>
> Konrad
> > +             [PLL_OFF_L_VAL] = 0x08,
> > +             [PLL_OFF_ALPHA_VAL] = 0x10,
> > +             [PLL_OFF_ALPHA_VAL_U] = 0xff,
> > +             [PLL_OFF_USER_CTL] = 0x18,
> > +             [PLL_OFF_USER_CTL_U] = 0xff,
> > +             [PLL_OFF_CONFIG_CTL] = 0x20,
> > +             [PLL_OFF_CONFIG_CTL_U] = 0x24,
> > +             [PLL_OFF_TEST_CTL] = 0x30,
> > +             [PLL_OFF_TEST_CTL_U] = 0x34,
> > +             [PLL_OFF_STATUS] = 0x28,
> > +     },
> >  };
> >  EXPORT_SYMBOL_GPL(clk_alpha_pll_regs);
> >
> > diff --git a/drivers/clk/qcom/clk-alpha-pll.h b/drivers/clk/qcom/clk-alpha-pll.h
> > index 6e9907deaf30..626fdf80336d 100644
> > --- a/drivers/clk/qcom/clk-alpha-pll.h
> > +++ b/drivers/clk/qcom/clk-alpha-pll.h
> > @@ -18,6 +18,7 @@ enum {
> >       CLK_ALPHA_PLL_TYPE_AGERA,
> >       CLK_ALPHA_PLL_TYPE_ZONDA,
> >       CLK_ALPHA_PLL_TYPE_LUCID_EVO,
> > +     CLK_ALPHA_PLL_TYPE_APSS,
> >       CLK_ALPHA_PLL_TYPE_MAX,
> >  };
> >
diff mbox series

Patch

diff --git a/drivers/clk/qcom/clk-alpha-pll.c b/drivers/clk/qcom/clk-alpha-pll.c
index 4406cf609aae..8270363ff98e 100644
--- a/drivers/clk/qcom/clk-alpha-pll.c
+++ b/drivers/clk/qcom/clk-alpha-pll.c
@@ -154,6 +154,18 @@  const u8 clk_alpha_pll_regs[][PLL_OFF_MAX_REGS] = {
 		[PLL_OFF_TEST_CTL_U] = 0x30,
 		[PLL_OFF_TEST_CTL_U1] = 0x34,
 	},
+	[CLK_ALPHA_PLL_TYPE_APSS] = {
+		[PLL_OFF_L_VAL] = 0x08,
+		[PLL_OFF_ALPHA_VAL] = 0x10,
+		[PLL_OFF_ALPHA_VAL_U] = 0xff,
+		[PLL_OFF_USER_CTL] = 0x18,
+		[PLL_OFF_USER_CTL_U] = 0xff,
+		[PLL_OFF_CONFIG_CTL] = 0x20,
+		[PLL_OFF_CONFIG_CTL_U] = 0x24,
+		[PLL_OFF_TEST_CTL] = 0x30,
+		[PLL_OFF_TEST_CTL_U] = 0x34,
+		[PLL_OFF_STATUS] = 0x28,
+	},
 };
 EXPORT_SYMBOL_GPL(clk_alpha_pll_regs);
 
diff --git a/drivers/clk/qcom/clk-alpha-pll.h b/drivers/clk/qcom/clk-alpha-pll.h
index 6e9907deaf30..626fdf80336d 100644
--- a/drivers/clk/qcom/clk-alpha-pll.h
+++ b/drivers/clk/qcom/clk-alpha-pll.h
@@ -18,6 +18,7 @@  enum {
 	CLK_ALPHA_PLL_TYPE_AGERA,
 	CLK_ALPHA_PLL_TYPE_ZONDA,
 	CLK_ALPHA_PLL_TYPE_LUCID_EVO,
+	CLK_ALPHA_PLL_TYPE_APSS,
 	CLK_ALPHA_PLL_TYPE_MAX,
 };