diff mbox series

[01/16] dt-bindings: phy: qmp-ufs: Fix PHY clocks

Message ID 20231214091101.45713-2-manivannan.sadhasivam@linaro.org
State Superseded
Headers show
Series [01/16] dt-bindings: phy: qmp-ufs: Fix PHY clocks | expand

Commit Message

Manivannan Sadhasivam Dec. 14, 2023, 9:10 a.m. UTC 
All QMP UFS PHYs except MSM8996 require 3 clocks:

* ref - 19.2MHz reference clock from RPMh
* ref_aux - Auxiliary reference clock from GCC
* qref - QREF clock from GCC or TCSR (since SM8550)

MSM8996 only requires 'ref' and 'qref' clocks. Hence, fix the binding to
reflect the actual clock topology.

Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
---
 .../phy/qcom,sc8280xp-qmp-ufs-phy.yaml        | 47 +++++++++----------
 1 file changed, 21 insertions(+), 26 deletions(-)

Comments

Manivannan Sadhasivam Dec. 18, 2023, 11:48 a.m. UTC | #1 
On Thu, Dec 14, 2023 at 11:20:51AM -0600, Rob Herring wrote:
> On Thu, Dec 14, 2023 at 02:40:46PM +0530, Manivannan Sadhasivam wrote:
> > All QMP UFS PHYs except MSM8996 require 3 clocks:
> > 
> > * ref - 19.2MHz reference clock from RPMh
> > * ref_aux - Auxiliary reference clock from GCC
> > * qref - QREF clock from GCC or TCSR (since SM8550)
> > 
> > MSM8996 only requires 'ref' and 'qref' clocks. Hence, fix the binding to
> > reflect the actual clock topology.
> 
> Breaking the ABI is okay because...? Please explain in the commit msg.
> 

I will update the commit message in v2.

- Mani

> Rob
>
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/phy/qcom,sc8280xp-qmp-ufs-phy.yaml b/Documentation/devicetree/bindings/phy/qcom,sc8280xp-qmp-ufs-phy.yaml
index f3a3296c811c..800f11b29dcd 100644
--- a/Documentation/devicetree/bindings/phy/qcom,sc8280xp-qmp-ufs-phy.yaml
+++ b/Documentation/devicetree/bindings/phy/qcom,sc8280xp-qmp-ufs-phy.yaml
@@ -37,15 +37,12 @@  properties:
     maxItems: 1
 
   clocks:
-    minItems: 1
+    minItems: 2
     maxItems: 3
 
   clock-names:
-    minItems: 1
-    items:
-      - const: ref
-      - const: ref_aux
-      - const: qref
+    minItems: 2
+    maxItems: 3
 
   power-domains:
     maxItems: 1
@@ -85,22 +82,9 @@  allOf:
         compatible:
           contains:
             enum:
+              - qcom,msm8998-qmp-ufs-phy
               - qcom,sa8775p-qmp-ufs-phy
               - qcom,sc7280-qmp-ufs-phy
-              - qcom,sm8450-qmp-ufs-phy
-    then:
-      properties:
-        clocks:
-          minItems: 3
-        clock-names:
-          minItems: 3
-
-  - if:
-      properties:
-        compatible:
-          contains:
-            enum:
-              - qcom,msm8998-qmp-ufs-phy
               - qcom,sc8180x-qmp-ufs-phy
               - qcom,sc8280xp-qmp-ufs-phy
               - qcom,sdm845-qmp-ufs-phy
@@ -111,13 +95,18 @@  allOf:
               - qcom,sm8150-qmp-ufs-phy
               - qcom,sm8250-qmp-ufs-phy
               - qcom,sm8350-qmp-ufs-phy
+              - qcom,sm8450-qmp-ufs-phy
               - qcom,sm8550-qmp-ufs-phy
     then:
       properties:
         clocks:
-          maxItems: 2
+          minItems: 3
+          maxItems: 3
         clock-names:
-          maxItems: 2
+          items:
+            - const: ref
+            - const: ref_aux
+            - const: qref
 
   - if:
       properties:
@@ -128,22 +117,28 @@  allOf:
     then:
       properties:
         clocks:
-          maxItems: 1
+          minItems: 2
+          maxItems: 2
         clock-names:
-          maxItems: 1
+          items:
+            - const: ref
+            - const: qref
 
 additionalProperties: false
 
 examples:
   - |
     #include <dt-bindings/clock/qcom,gcc-sc8280xp.h>
+    #include <dt-bindings/clock/qcom,rpmh.h>
 
     ufs_mem_phy: phy@1d87000 {
         compatible = "qcom,sc8280xp-qmp-ufs-phy";
         reg = <0x01d87000 0x1000>;
 
-        clocks = <&gcc GCC_UFS_REF_CLKREF_CLK>, <&gcc GCC_UFS_PHY_PHY_AUX_CLK>;
-        clock-names = "ref", "ref_aux";
+        clocks = <&rpmhcc RPMH_CXO_CLK>, <&gcc GCC_UFS_PHY_PHY_AUX_CLK>,
+                 <&gcc GCC_UFS_REF_CLKREF_CLK>;
+
+        clock-names = "ref", "ref_aux", "qref";
 
         power-domains = <&gcc UFS_PHY_GDSC>;