diff mbox series

[v4,2/4] dt-bindings: opp: opp-v2-kryo-cpu: Document named opp-microvolt property

Message ID 20230928210525.1265958-2-robimarko@gmail.com
State New
Headers
Series [v4,1/4] cpufreq: qcom-nvmem: add support for IPQ8074 |

Commit Message

Robert Marko Sept. 28, 2023, 9:04 p.m. UTC 
  From: Christian Marangi <ansuelsmth@gmail.com>

Document named opp-microvolt property for opp-v2-kryo-cpu schema.
This property is used to declare multiple voltage ranges selected on the
different values read from efuses. The selection is done based on the
speed pvs values and the named opp-microvolt property is selected by the
qcom-cpufreq-nvmem driver.

Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
Signed-off-by: Robert Marko <robimarko@gmail.com>
---
Changes in v4:
* Describe PVS
* Add description for opp-microvolt entries
---
 .../bindings/opp/opp-v2-kryo-cpu.yaml         | 38 +++++++++++++++++++
 1 file changed, 38 insertions(+)

Comments

Rob Herring Sept. 28, 2023, 10:49 p.m. UTC | #1 
On Thu, 28 Sep 2023 23:04:05 +0200, Robert Marko wrote:
> From: Christian Marangi <ansuelsmth@gmail.com>
> 
> Document named opp-microvolt property for opp-v2-kryo-cpu schema.
> This property is used to declare multiple voltage ranges selected on the
> different values read from efuses. The selection is done based on the
> speed pvs values and the named opp-microvolt property is selected by the
> qcom-cpufreq-nvmem driver.
> 
> Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
> Signed-off-by: Robert Marko <robimarko@gmail.com>
> ---
> Changes in v4:
> * Describe PVS
> * Add description for opp-microvolt entries
> ---
>  .../bindings/opp/opp-v2-kryo-cpu.yaml         | 38 +++++++++++++++++++
>  1 file changed, 38 insertions(+)
> 

My bot found errors running 'make DT_CHECKER_FLAGS=-m dt_binding_check'
on your patch (DT_CHECKER_FLAGS is new in v5.13):

yamllint warnings/errors:

dtschema/dtc warnings/errors:
/builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/opp/opp-v2-kryo-cpu.yaml: patternProperties:^opp-?[0-9]+$:patternProperties:^opp-microvolt-speed[0-9]+-pvs[0-9]+$: {'description': 'Named opp-microvolt property following the same generic\nbinding for named opp-microvolt.\n\nThe correct voltage range is selected based on the values\nin the efuse for the speed and the pvs (power variable\nscaling).\n', 'minItems': 1, 'maxItems': 4, 'items': [{'description': 'nominal voltage'}, {'description': 'minimum voltage'}, {'description': 'maximum voltage'}]} should not be valid under {'required': ['maxItems']}
	hint: "maxItems" is not needed with an "items" list
	from schema $id: http://devicetree.org/meta-schemas/items.yaml#

doc reference errors (make refcheckdocs):

See https://patchwork.ozlabs.org/project/devicetree-bindings/patch/20230928210525.1265958-2-robimarko@gmail.com

The base for the series is generally the latest rc1. A different dependency
should be noted in *this* patch.

If you already ran 'make dt_binding_check' and didn't see the above
error(s), then make sure 'yamllint' is installed and dt-schema is up to
date:

pip3 install dtschema --upgrade

Please check and re-submit after running the above command yourself. Note
that DT_SCHEMA_FILES can be set to your schema file to speed up checking
your schema. However, it must be unset to test all examples with your schema.
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/opp/opp-v2-kryo-cpu.yaml b/Documentation/devicetree/bindings/opp/opp-v2-kryo-cpu.yaml
index bbbad31ae4ca..f1b4553fd66a 100644
--- a/Documentation/devicetree/bindings/opp/opp-v2-kryo-cpu.yaml
+++ b/Documentation/devicetree/bindings/opp/opp-v2-kryo-cpu.yaml
@@ -63,6 +63,12 @@  patternProperties:
           5:  MSM8996SG, speedbin 1
           6:  MSM8996SG, speedbin 2
           7-31:  unused
+
+          Bitmap for IPQ806X SoC:
+          0:  IPQ8062
+          1:  IPQ8064/IPQ8066/IPQ8068
+          2:  IPQ8065/IPQ8069
+          3-31:  unused
         enum: [0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7,
                0x9, 0xd, 0xe, 0xf,
                0x10, 0x20, 0x30, 0x70]
@@ -71,6 +77,22 @@  patternProperties:
 
       required-opps: true
 
+    patternProperties:
+      '^opp-microvolt-speed[0-9]+-pvs[0-9]+$':
+        description: |
+          Named opp-microvolt property following the same generic
+          binding for named opp-microvolt.
+
+          The correct voltage range is selected based on the values
+          in the efuse for the speed and the pvs (power variable
+          scaling).
+        minItems: 1
+        maxItems: 4 # Up to 4 regulators: Core, Mem, Dig and HFPLL
+        items:
+          - description: nominal voltage
+          - description: minimum voltage
+          - description: maximum voltage
+
     required:
       - opp-hz
 
@@ -256,6 +278,22 @@  examples:
             };
         };
 
+        /* Dummy opp table to give example for named opp-microvolt */
+        opp-table-2 {
+            compatible = "operating-points-v2-kryo-cpu";
+            nvmem-cells = <&speedbin_efuse>;
+
+            opp-384000000 {
+                opp-hz = /bits/ 64 <384000000>;
+                opp-microvolt-speed0-pvs0 = <1000000 950000 1050000>;
+                opp-microvolt-speed0-pvs1 = <925000 878750 971250>;
+                opp-microvolt-speed0-pvs2 = <875000 831250 918750>;
+                opp-microvolt-speed0-pvs3 = <800000 760000 840000>;
+                opp-supported-hw = <0x7>;
+                clock-latency-ns = <100000>;
+            };
+        };
+
         smem {
             compatible = "qcom,smem";
             memory-region = <&smem_mem>;