diff mbox series

[v3,1/3] dt-bindings: clock: Add YAML schemas for the QCOM MSS clock bindings

Message ID 1580357923-19783-2-git-send-email-tdas@codeaurora.org (mailing list archive)
State Superseded
Headers show
Series Add modem Clock controller (MSS CC) driver for SC7180 | expand

Commit Message

Taniya Das Jan. 30, 2020, 4:18 a.m. UTC 
The Modem Subsystem clock provider have a bunch of generic properties
that are needed in a device tree. Add a YAML schemas for those.

Signed-off-by: Taniya Das <tdas@codeaurora.org>
---
 .../devicetree/bindings/clock/qcom,mss.yaml        | 58 ++++++++++++++++++++++
 1 file changed, 58 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/clock/qcom,mss.yaml

--
Qualcomm INDIA, on behalf of Qualcomm Innovation Center, Inc.is a member
of the Code Aurora Forum, hosted by the  Linux Foundation.

Comments

Stephen Boyd Jan. 30, 2020, 6:06 p.m. UTC | #1 
Quoting Taniya Das (2020-01-29 20:18:41)
> The Modem Subsystem clock provider have a bunch of generic properties
> that are needed in a device tree. Add a YAML schemas for those.
> 
> Signed-off-by: Taniya Das <tdas@codeaurora.org>
> ---
>  .../devicetree/bindings/clock/qcom,mss.yaml        | 58 ++++++++++++++++++++++

Please rename to qcom,sc7180-mss.yaml

>  1 file changed, 58 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/clock/qcom,mss.yaml
> 
> diff --git a/Documentation/devicetree/bindings/clock/qcom,mss.yaml b/Documentation/devicetree/bindings/clock/qcom,mss.yaml
> new file mode 100644
> index 0000000..ebb04e1
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/clock/qcom,mss.yaml
> @@ -0,0 +1,58 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/bindings/clock/qcom,mss.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Qualcomm Modem Clock Controller Binding
> +
> +maintainers:
> +  - Taniya Das <tdas@codeaurora.org>
> +
> +description: |
> +  Qualcomm modem clock control module which supports the clocks.

Can you point to the header file from here?
include/dt-bindings/clock/qcom,sc7180-mss.h I guess.

> +
> +properties:
> +  compatible:
> +    enum:
> +       - qcom,sc7180-mss
> +
> +  clocks:
> +    minItems: 1
> +    maxItems: 3

Why is it optional? Don't these all go there?

> +    items:
> +      - description: gcc_mss_mfab_axi clock from GCC
> +      - description: gcc_mss_nav_axi clock from GCC
> +      - description: gcc_mss_cfg_ahb clock from GCC
> +
> +  clock-names:
> +    items:
> +      - const: gcc_mss_mfab_axis_clk
> +      - const: gcc_mss_nav_axi_clk
> +      - const: cfg_clk

Do these really need _clk at the end? Seems redundant.

> +
> +  '#clock-cells':
> +    const: 1
> +
Sibi Sankar Feb. 7, 2020, 7:27 a.m. UTC | #2 
Hey Taniya,

On 2020-01-30 09:48, Taniya Das wrote:
> The Modem Subsystem clock provider have a bunch of generic properties
> that are needed in a device tree. Add a YAML schemas for those.
> 
> Signed-off-by: Taniya Das <tdas@codeaurora.org>
> ---
>  .../devicetree/bindings/clock/qcom,mss.yaml        | 58 
> ++++++++++++++++++++++
>  1 file changed, 58 insertions(+)
>  create mode 100644 
> Documentation/devicetree/bindings/clock/qcom,mss.yaml
> 
> diff --git a/Documentation/devicetree/bindings/clock/qcom,mss.yaml
> b/Documentation/devicetree/bindings/clock/qcom,mss.yaml
> new file mode 100644
> index 0000000..ebb04e1
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/clock/qcom,mss.yaml
> @@ -0,0 +1,58 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/bindings/clock/qcom,mss.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Qualcomm Modem Clock Controller Binding
> +
> +maintainers:
> +  - Taniya Das <tdas@codeaurora.org>
> +
> +description: |
> +  Qualcomm modem clock control module which supports the clocks.
> +
> +properties:
> +  compatible:
> +    enum:
> +       - qcom,sc7180-mss
> +
> +  clocks:
> +    minItems: 1
> +    maxItems: 3
> +    items:
> +      - description: gcc_mss_mfab_axi clock from GCC
> +      - description: gcc_mss_nav_axi clock from GCC

we don't seem to be referencing the
mss_mfab_axi and mss_nav_axi in the
mss clk driver though, do we really
need them in bindings? If we dont
can we drop the clock-names as well.

> +      - description: gcc_mss_cfg_ahb clock from GCC
> +
> +  clock-names:
> +    items:
> +      - const: gcc_mss_mfab_axis_clk
> +      - const: gcc_mss_nav_axi_clk
> +      - const: cfg_clk
> +
> +  '#clock-cells':
> +    const: 1
> +
> +  reg:
> +    maxItems: 1
> +
> +required:
> +  - compatible
> +  - reg
> +  - clocks
> +  - '#clock-cells'
> +
> +additionalProperties: false
> +
> +examples:
> +  # Example of MSS with clock nodes properties for SC7180:
> +  - |
> +    clock-controller@41a8000 {
> +      compatible = "qcom,sc7180-mss";
> +      reg = <0x041a8000 0x8000>;
> +      clocks = <&gcc 126>, <&gcc 127>, <&gcc 125>;
> +      clock-names = "gcc_mss_mfab_axis_clk", "gcc_mss_nav_axi_clk", 
> "cfg_clk";
> +      #clock-cells = <1>;
> +    };
> +...
> --
> Qualcomm INDIA, on behalf of Qualcomm Innovation Center, Inc.is a 
> member
> of the Code Aurora Forum, hosted by the  Linux Foundation.
Taniya Das Feb. 7, 2020, 10:27 a.m. UTC | #3 
On 2/7/2020 12:57 PM, Sibi Sankar wrote:
> Hey Taniya,
> 
> On 2020-01-30 09:48, Taniya Das wrote:
>> The Modem Subsystem clock provider have a bunch of generic properties
>> that are needed in a device tree. Add a YAML schemas for those.
>>
>> Signed-off-by: Taniya Das <tdas@codeaurora.org>
>> ---
>>  .../devicetree/bindings/clock/qcom,mss.yaml        | 58 
>> ++++++++++++++++++++++
>>  1 file changed, 58 insertions(+)
>>  create mode 100644 Documentation/devicetree/bindings/clock/qcom,mss.yaml
>>
>> diff --git a/Documentation/devicetree/bindings/clock/qcom,mss.yaml
>> b/Documentation/devicetree/bindings/clock/qcom,mss.yaml
>> new file mode 100644
>> index 0000000..ebb04e1
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/clock/qcom,mss.yaml
>> @@ -0,0 +1,58 @@
>> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
>> +%YAML 1.2
>> +---
>> +$id: http://devicetree.org/schemas/bindings/clock/qcom,mss.yaml#
>> +$schema: http://devicetree.org/meta-schemas/core.yaml#
>> +
>> +title: Qualcomm Modem Clock Controller Binding
>> +
>> +maintainers:
>> +  - Taniya Das <tdas@codeaurora.org>
>> +
>> +description: |
>> +  Qualcomm modem clock control module which supports the clocks.
>> +
>> +properties:
>> +  compatible:
>> +    enum:
>> +       - qcom,sc7180-mss
>> +
>> +  clocks:
>> +    minItems: 1
>> +    maxItems: 3
>> +    items:
>> +      - description: gcc_mss_mfab_axi clock from GCC
>> +      - description: gcc_mss_nav_axi clock from GCC
> 
> we don't seem to be referencing the
> mss_mfab_axi and mss_nav_axi in the
> mss clk driver though, do we really
> need them in bindings? If we dont
> can we drop the clock-names as well.
> 

They are linked as parent for the clocks. So we need them.
+			.parent_data = &(const struct clk_parent_data){
+				.fw_name = "gcc_mss_nav_axi_clk",
+			},

>> +      - description: gcc_mss_cfg_ahb clock from GCC
>> +
>> +  clock-names:
>> +    items:
>> +      - const: gcc_mss_mfab_axis_clk
>> +      - const: gcc_mss_nav_axi_clk
>> +      - const: cfg_clk
>> +
>> +  '#clock-cells':
>> +    const: 1
>> +
>> +  reg:
>> +    maxItems: 1
>> +
>> +required:
>> +  - compatible
>> +  - reg
>> +  - clocks
>> +  - '#clock-cells'
>> +
>> +additionalProperties: false
>> +
>> +examples:
>> +  # Example of MSS with clock nodes properties for SC7180:
>> +  - |
>> +    clock-controller@41a8000 {
>> +      compatible = "qcom,sc7180-mss";
>> +      reg = <0x041a8000 0x8000>;
>> +      clocks = <&gcc 126>, <&gcc 127>, <&gcc 125>;
>> +      clock-names = "gcc_mss_mfab_axis_clk", "gcc_mss_nav_axi_clk", 
>> "cfg_clk";
>> +      #clock-cells = <1>;
>> +    };
>> +...
>> -- 
>> Qualcomm INDIA, on behalf of Qualcomm Innovation Center, Inc.is a member
>> of the Code Aurora Forum, hosted by the  Linux Foundation.
>
Taniya Das Feb. 18, 2020, 6:12 p.m. UTC | #4 
Thanks Stephen.
Will address the comments in the next patch series.

On 1/30/2020 11:36 PM, Stephen Boyd wrote:
> Quoting Taniya Das (2020-01-29 20:18:41)
>> The Modem Subsystem clock provider have a bunch of generic properties
>> that are needed in a device tree. Add a YAML schemas for those.
>>
>> Signed-off-by: Taniya Das <tdas@codeaurora.org>
>> ---
>>   .../devicetree/bindings/clock/qcom,mss.yaml        | 58 ++++++++++++++++++++++
> 
> Please rename to qcom,sc7180-mss.yaml
> 
>>   1 file changed, 58 insertions(+)
>>   create mode 100644 Documentation/devicetree/bindings/clock/qcom,mss.yaml
>>
>> diff --git a/Documentation/devicetree/bindings/clock/qcom,mss.yaml b/Documentation/devicetree/bindings/clock/qcom,mss.yaml
>> new file mode 100644
>> index 0000000..ebb04e1
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/clock/qcom,mss.yaml
>> @@ -0,0 +1,58 @@
>> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
>> +%YAML 1.2
>> +---
>> +$id: http://devicetree.org/schemas/bindings/clock/qcom,mss.yaml#
>> +$schema: http://devicetree.org/meta-schemas/core.yaml#
>> +
>> +title: Qualcomm Modem Clock Controller Binding
>> +
>> +maintainers:
>> +  - Taniya Das <tdas@codeaurora.org>
>> +
>> +description: |
>> +  Qualcomm modem clock control module which supports the clocks.
> 
> Can you point to the header file from here?
> include/dt-bindings/clock/qcom,sc7180-mss.h I guess.
> 

will add the same.

>> +
>> +properties:
>> +  compatible:
>> +    enum:
>> +       - qcom,sc7180-mss
>> +
>> +  clocks:
>> +    minItems: 1
>> +    maxItems: 3
> 
> Why is it optional? Don't these all go there?
> 

Yes, moved them to required.

>> +    items:
>> +      - description: gcc_mss_mfab_axi clock from GCC
>> +      - description: gcc_mss_nav_axi clock from GCC
>> +      - description: gcc_mss_cfg_ahb clock from GCC
>> +
>> +  clock-names:
>> +    items:
>> +      - const: gcc_mss_mfab_axis_clk
>> +      - const: gcc_mss_nav_axi_clk
>> +      - const: cfg_clk
> 
> Do these really need _clk at the end? Seems redundant.
> 
Removed _clk.

>> +
>> +  '#clock-cells':
>> +    const: 1
>> +
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/clock/qcom,mss.yaml b/Documentation/devicetree/bindings/clock/qcom,mss.yaml
new file mode 100644
index 0000000..ebb04e1
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/qcom,mss.yaml
@@ -0,0 +1,58 @@ 
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/bindings/clock/qcom,mss.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Modem Clock Controller Binding
+
+maintainers:
+  - Taniya Das <tdas@codeaurora.org>
+
+description: |
+  Qualcomm modem clock control module which supports the clocks.
+
+properties:
+  compatible:
+    enum:
+       - qcom,sc7180-mss
+
+  clocks:
+    minItems: 1
+    maxItems: 3
+    items:
+      - description: gcc_mss_mfab_axi clock from GCC
+      - description: gcc_mss_nav_axi clock from GCC
+      - description: gcc_mss_cfg_ahb clock from GCC
+
+  clock-names:
+    items:
+      - const: gcc_mss_mfab_axis_clk
+      - const: gcc_mss_nav_axi_clk
+      - const: cfg_clk
+
+  '#clock-cells':
+    const: 1
+
+  reg:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - '#clock-cells'
+
+additionalProperties: false
+
+examples:
+  # Example of MSS with clock nodes properties for SC7180:
+  - |
+    clock-controller@41a8000 {
+      compatible = "qcom,sc7180-mss";
+      reg = <0x041a8000 0x8000>;
+      clocks = <&gcc 126>, <&gcc 127>, <&gcc 125>;
+      clock-names = "gcc_mss_mfab_axis_clk", "gcc_mss_nav_axi_clk", "cfg_clk";
+      #clock-cells = <1>;
+    };
+...