linux-kernel - [PATCH 18/22] dt-bindings: spi: document support for SA8255p

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Message-ID: <20240828203721.2751904-19-quic_nkela@quicinc.com>
Date: Wed, 28 Aug 2024 13:37:17 -0700
From: Nikunj Kela <quic_nkela@...cinc.com>
To: <andersson@...nel.org>, <konradybcio@...nel.org>, <robh@...nel.org>,
        <krzk+dt@...nel.org>, <conor+dt@...nel.org>, <rafael@...nel.org>,
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        <davem@...emloft.net>, <sudeep.holla@....com>, <andi.shyti@...nel.org>,
        <tglx@...utronix.de>, <will@...nel.org>, <joro@...tes.org>,
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        <thara.gopinath@...il.com>, <broonie@...nel.org>,
        <wim@...ux-watchdog.org>, <linux@...ck-us.net>
CC: <robin.murphy@....com>, <cristian.marussi@....com>, <rui.zhang@...el.com>,
        <lukasz.luba@....com>, <vkoul@...nel.org>, <quic_gurus@...cinc.com>,
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        <quic_rjendra@...cinc.com>, <robimarko@...il.com>,
        <linux-arm-msm@...r.kernel.org>, <devicetree@...r.kernel.org>,
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        <linux-crypto@...r.kernel.org>, <arm-scmi@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>, <linux-i2c@...r.kernel.org>,
        <iommu@...ts.linux.dev>, <linux-gpio@...r.kernel.org>,
        <linux-serial@...r.kernel.org>, <linux-spi@...r.kernel.org>,
        <linux-watchdog@...r.kernel.org>, <kernel@...cinc.com>,
        <quic_psodagud@...cinc.com>, <quic_tsoni@...cinc.com>,
        <quic_shazhuss@...cinc.com>, Nikunj Kela <quic_nkela@...cinc.com>,
        "Praveen
 Talari" <quic_ptalari@...cinc.com>
Subject: [PATCH 18/22] dt-bindings: spi: document support for SA8255p

Add compatible representing spi support on SA8255p.

Clocks and interconnects are being configured in firmware VM
on SA8255p platform, therefore making them optional.

CC: Praveen Talari <quic_ptalari@...cinc.com>
Signed-off-by: Nikunj Kela <quic_nkela@...cinc.com>
---
 .../bindings/spi/qcom,spi-geni-qcom.yaml      | 64 +++++++++++++++----
 1 file changed, 53 insertions(+), 11 deletions(-)

diff --git a/Documentation/devicetree/bindings/spi/qcom,spi-geni-qcom.yaml b/Documentation/devicetree/bindings/spi/qcom,spi-geni-qcom.yaml
index 2e20ca313ec1..74ea7c4f2451 100644
--- a/Documentation/devicetree/bindings/spi/qcom,spi-geni-qcom.yaml
+++ b/Documentation/devicetree/bindings/spi/qcom,spi-geni-qcom.yaml
@@ -25,10 +25,41 @@ description:
 
 allOf:
   - $ref: /schemas/spi/spi-controller.yaml#
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: qcom,sa8255p-geni-spi
+    then:
+      required:
+        - power-domains
+        - power-domain-names
+      properties:
+        power-domains:
+          minItems: 2
+          maxItems: 2
+    else:
+      required:
+        - clocks
+        - clock-names
+      properties:
+        power-domains:
+          maxItems: 1
+        interconnects:
+          minItems: 2
+          maxItems: 3
+        interconnect-names:
+          minItems: 2
+          items:
+            - const: qup-core
+            - const: qup-config
+            - const: qup-memory
 
 properties:
   compatible:
-    const: qcom,geni-spi
+    enum:
+      - qcom,geni-spi
+      - qcom,sa8255p-geni-spi
 
   clocks:
     maxItems: 1
@@ -45,15 +76,10 @@ properties:
       - const: rx
 
   interconnects:
-    minItems: 2
-    maxItems: 3
+    description: phandles of interconnect bw provider
 
   interconnect-names:
-    minItems: 2
-    items:
-      - const: qup-core
-      - const: qup-config
-      - const: qup-memory
+    description: names of interconnects
 
   interrupts:
     maxItems: 1
@@ -61,15 +87,18 @@ properties:
   operating-points-v2: true
 
   power-domains:
-    maxItems: 1
+    $ref: "/schemas/power/power-domain.yaml#/properties/power-domains"
+
+  power-domain-names:
+    items:
+      - const: power
+      - const: perf
 
   reg:
     maxItems: 1
 
 required:
   - compatible
-  - clocks
-  - clock-names
   - interrupts
   - reg
 
@@ -116,3 +145,16 @@ examples:
         #address-cells = <1>;
         #size-cells = <0>;
     };
+
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+    spi@...000 {
+        compatible = "qcom,sa8255p-geni-spi";
+        reg = <0x888000 0x4000>;
+        interrupts = <GIC_SPI 584 IRQ_TYPE_LEVEL_HIGH>;
+        #address-cells = <1>;
+        #size-cells = <0>;
+        power-domains = <&scmi10_pd 16>, <&scmi10_dvfs 16>;
+        power-domain-names = "power", "perf";
+    };
-- 
2.34.1