[v6,1/5] dt-bindings: clock: meson: add A1 PLL clock controller bindings
diff mbox series

Message ID 20200116080440.118679-2-jian.hu@amlogic.com
State Superseded
Headers show
Series
  • add Amlogic A1 clock controller driver
Related show

Commit Message

Jian Hu Jan. 16, 2020, 8:04 a.m. UTC
Add the documentation to support Amlogic A1 PLL clock driver,
and add A1 PLL clock controller bindings.

Signed-off-by: Jian Hu <jian.hu@amlogic.com>
---
 .../bindings/clock/amlogic,a1-pll-clkc.yaml   | 54 +++++++++++++++++++
 include/dt-bindings/clock/a1-pll-clkc.h       | 16 ++++++
 2 files changed, 70 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/clock/amlogic,a1-pll-clkc.yaml
 create mode 100644 include/dt-bindings/clock/a1-pll-clkc.h

Comments

Rob Herring Jan. 16, 2020, 8:48 p.m. UTC | #1
On Thu, Jan 16, 2020 at 04:04:36PM +0800, Jian Hu wrote:
> Add the documentation to support Amlogic A1 PLL clock driver,
> and add A1 PLL clock controller bindings.
> 
> Signed-off-by: Jian Hu <jian.hu@amlogic.com>
> ---
>  .../bindings/clock/amlogic,a1-pll-clkc.yaml   | 54 +++++++++++++++++++
>  include/dt-bindings/clock/a1-pll-clkc.h       | 16 ++++++
>  2 files changed, 70 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/clock/amlogic,a1-pll-clkc.yaml
>  create mode 100644 include/dt-bindings/clock/a1-pll-clkc.h
> 
> diff --git a/Documentation/devicetree/bindings/clock/amlogic,a1-pll-clkc.yaml b/Documentation/devicetree/bindings/clock/amlogic,a1-pll-clkc.yaml
> new file mode 100644
> index 000000000000..071240b65e70
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/clock/amlogic,a1-pll-clkc.yaml
> @@ -0,0 +1,54 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: "http://devicetree.org/schemas/amlogic,a1-pll-clkc.yaml#"
> +$schema: "http://devicetree.org/meta-schemas/core.yaml#"
> +
> +title: Amlogic Meson A/C serials PLL Clock Control Unit Device Tree Bindings
> +
> +maintainers:
> +  - Neil Armstrong <narmstrong@baylibre.com>
> +  - Jerome Brunet <jbrunet@baylibre.com>
> +  - Jian Hu <jian.hu@jian.hu.com>
> +
> +properties:
> +  compatible:
> +    const: amlogic,a1-pll-clkc
> +
> +  "#clock-cells":
> +    const: 1
> +
> +  reg:
> +    maxItems: 1
> +
> +  clocks:
> +    maxItems: 2

Not necessary, so drop. Implied by the length of 'items'.

> +    items:
> +     - description: input xtal_fixpll
> +     - description: input xtal_hifipll
> +
> +  clock-names:
> +    maxItems: 2

Same here.

> +    items:
> +      - const: xtal_fixpll
> +      - const: xtal_hifipll
> +
> +required:
> +  - compatible
> +  - "#clock-cells"
> +  - reg
> +  - clocks
> +  - clock-names
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    clkc_pll: pll-clock-controller@7c80 {
> +                compatible = "amlogic,a1-pll-clkc";
> +                reg = <0 0x7c80 0 0x18c>;
> +                #clock-cells = <1>;
> +                clocks = <&clkc_periphs CLKID_XTAL_FIXPLL>,
> +                         <&clkc_periphs CLKID_XTAL_HIFIPLL>;

The example will fail to build because these aren't defined.

Run 'make dt_binding_check'.

> +                clock-names = "xtal_fixpll", "xtal_hifipll";
> +    };
> diff --git a/include/dt-bindings/clock/a1-pll-clkc.h b/include/dt-bindings/clock/a1-pll-clkc.h
> new file mode 100644
> index 000000000000..58eae237e503
> --- /dev/null
> +++ b/include/dt-bindings/clock/a1-pll-clkc.h
> @@ -0,0 +1,16 @@
> +/* SPDX-License-Identifier: (GPL-2.0+ OR MIT) */
> +/*
> + * Copyright (c) 2019 Amlogic, Inc. All rights reserved.
> + */
> +
> +#ifndef __A1_PLL_CLKC_H
> +#define __A1_PLL_CLKC_H
> +
> +#define CLKID_FIXED_PLL				1
> +#define CLKID_FCLK_DIV2				6
> +#define CLKID_FCLK_DIV3				7
> +#define CLKID_FCLK_DIV5				8
> +#define CLKID_FCLK_DIV7				9
> +#define CLKID_HIFI_PLL				10
> +
> +#endif /* __A1_PLL_CLKC_H */
> -- 
> 2.24.0
>
Jian Hu Jan. 17, 2020, 12:16 p.m. UTC | #2
Hi Rob

Thanks for your review

On 2020/1/17 4:48, Rob Herring wrote:
> On Thu, Jan 16, 2020 at 04:04:36PM +0800, Jian Hu wrote:
>> Add the documentation to support Amlogic A1 PLL clock driver,
>> and add A1 PLL clock controller bindings.
>>
>> Signed-off-by: Jian Hu <jian.hu@amlogic.com>
>> ---
>>   .../bindings/clock/amlogic,a1-pll-clkc.yaml   | 54 +++++++++++++++++++
>>   include/dt-bindings/clock/a1-pll-clkc.h       | 16 ++++++
>>   2 files changed, 70 insertions(+)
>>   create mode 100644 Documentation/devicetree/bindings/clock/amlogic,a1-pll-clkc.yaml
>>   create mode 100644 include/dt-bindings/clock/a1-pll-clkc.h
>>
>> diff --git a/Documentation/devicetree/bindings/clock/amlogic,a1-pll-clkc.yaml b/Documentation/devicetree/bindings/clock/amlogic,a1-pll-clkc.yaml
>> new file mode 100644
>> index 000000000000..071240b65e70
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/clock/amlogic,a1-pll-clkc.yaml
>> @@ -0,0 +1,54 @@
>> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
>> +%YAML 1.2
>> +---
>> +$id: "http://devicetree.org/schemas/amlogic,a1-pll-clkc.yaml#"
>> +$schema: "http://devicetree.org/meta-schemas/core.yaml#"
>> +
>> +title: Amlogic Meson A/C serials PLL Clock Control Unit Device Tree Bindings
>> +
>> +maintainers:
>> +  - Neil Armstrong <narmstrong@baylibre.com>
>> +  - Jerome Brunet <jbrunet@baylibre.com>
>> +  - Jian Hu <jian.hu@jian.hu.com>
>> +
>> +properties:
>> +  compatible:
>> +    const: amlogic,a1-pll-clkc
>> +
>> +  "#clock-cells":
>> +    const: 1
>> +
>> +  reg:
>> +    maxItems: 1
>> +
>> +  clocks:
>> +    maxItems: 2
> 
> Not necessary, so drop. Implied by the length of 'items'.
> 
Ok, I will remove it.
>> +    items:
>> +     - description: input xtal_fixpll
>> +     - description: input xtal_hifipll
>> +
>> +  clock-names:
>> +    maxItems: 2
> 
> Same here.
OK, remove it.
> 
>> +    items:
>> +      - const: xtal_fixpll
>> +      - const: xtal_hifipll
>> +
>> +required:
>> +  - compatible
>> +  - "#clock-cells"
>> +  - reg
>> +  - clocks
>> +  - clock-names
>> +
>> +additionalProperties: false
>> +
>> +examples:
>> +  - |
>> +    clkc_pll: pll-clock-controller@7c80 {
>> +                compatible = "amlogic,a1-pll-clkc";
>> +                reg = <0 0x7c80 0 0x18c>;
>> +                #clock-cells = <1>;
>> +                clocks = <&clkc_periphs CLKID_XTAL_FIXPLL>,
>> +                         <&clkc_periphs CLKID_XTAL_HIFIPLL>;
> 
> The example will fail to build because these aren't defined.
> 
> Run 'make dt_binding_check'.
> 
I have verified it, it is caused by CLKID_XTAL_FIXPLL and 
CLKID_XTAL_HIFIPLL. They are defined in 
include/dt-bindings/clock/a1-clkc.h in another patch [4/5].

The same with patch [4/5], there will be compiling error, too.

If change CLKID_XTAL_FIXPLL to '1', and change CLKID_XTAL_HIFIPLL to
'4', it can be compiled successfully.

Should I use macros or numbers?

>> +                clock-names = "xtal_fixpll", "xtal_hifipll";
>> +    };
>> diff --git a/include/dt-bindings/clock/a1-pll-clkc.h b/include/dt-bindings/clock/a1-pll-clkc.h
>> new file mode 100644
>> index 000000000000..58eae237e503
>> --- /dev/null
>> +++ b/include/dt-bindings/clock/a1-pll-clkc.h
>> @@ -0,0 +1,16 @@
>> +/* SPDX-License-Identifier: (GPL-2.0+ OR MIT) */
>> +/*
>> + * Copyright (c) 2019 Amlogic, Inc. All rights reserved.
>> + */
>> +
>> +#ifndef __A1_PLL_CLKC_H
>> +#define __A1_PLL_CLKC_H
>> +
>> +#define CLKID_FIXED_PLL				1
>> +#define CLKID_FCLK_DIV2				6
>> +#define CLKID_FCLK_DIV3				7
>> +#define CLKID_FCLK_DIV5				8
>> +#define CLKID_FCLK_DIV7				9
>> +#define CLKID_HIFI_PLL				10
>> +
>> +#endif /* __A1_PLL_CLKC_H */
>> -- 
>> 2.24.0
>>
> 
> .
>

Patch
diff mbox series

diff --git a/Documentation/devicetree/bindings/clock/amlogic,a1-pll-clkc.yaml b/Documentation/devicetree/bindings/clock/amlogic,a1-pll-clkc.yaml
new file mode 100644
index 000000000000..071240b65e70
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/amlogic,a1-pll-clkc.yaml
@@ -0,0 +1,54 @@ 
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/amlogic,a1-pll-clkc.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: Amlogic Meson A/C serials PLL Clock Control Unit Device Tree Bindings
+
+maintainers:
+  - Neil Armstrong <narmstrong@baylibre.com>
+  - Jerome Brunet <jbrunet@baylibre.com>
+  - Jian Hu <jian.hu@jian.hu.com>
+
+properties:
+  compatible:
+    const: amlogic,a1-pll-clkc
+
+  "#clock-cells":
+    const: 1
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    maxItems: 2
+    items:
+     - description: input xtal_fixpll
+     - description: input xtal_hifipll
+
+  clock-names:
+    maxItems: 2
+    items:
+      - const: xtal_fixpll
+      - const: xtal_hifipll
+
+required:
+  - compatible
+  - "#clock-cells"
+  - reg
+  - clocks
+  - clock-names
+
+additionalProperties: false
+
+examples:
+  - |
+    clkc_pll: pll-clock-controller@7c80 {
+                compatible = "amlogic,a1-pll-clkc";
+                reg = <0 0x7c80 0 0x18c>;
+                #clock-cells = <1>;
+                clocks = <&clkc_periphs CLKID_XTAL_FIXPLL>,
+                         <&clkc_periphs CLKID_XTAL_HIFIPLL>;
+                clock-names = "xtal_fixpll", "xtal_hifipll";
+    };
diff --git a/include/dt-bindings/clock/a1-pll-clkc.h b/include/dt-bindings/clock/a1-pll-clkc.h
new file mode 100644
index 000000000000..58eae237e503
--- /dev/null
+++ b/include/dt-bindings/clock/a1-pll-clkc.h
@@ -0,0 +1,16 @@ 
+/* SPDX-License-Identifier: (GPL-2.0+ OR MIT) */
+/*
+ * Copyright (c) 2019 Amlogic, Inc. All rights reserved.
+ */
+
+#ifndef __A1_PLL_CLKC_H
+#define __A1_PLL_CLKC_H
+
+#define CLKID_FIXED_PLL				1
+#define CLKID_FCLK_DIV2				6
+#define CLKID_FCLK_DIV3				7
+#define CLKID_FCLK_DIV5				8
+#define CLKID_FCLK_DIV7				9
+#define CLKID_HIFI_PLL				10
+
+#endif /* __A1_PLL_CLKC_H */