linux-kernel - [PATCH 1/4] dt-bindings: i2c Update PCA954x

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Date:   Tue, 14 Dec 2021 10:50:18 +0100
From:   Patrick Rudolph <patrick.rudolph@...ements.com>
To:     Peter Rosin <peda@...ntia.se>, Rob Herring <robh+dt@...nel.org>,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>
Cc:     Patrick Rudolph <patrick.rudolph@...ements.com>,
        linux-i2c@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH 1/4] dt-bindings: i2c Update PCA954x

Add the Maxim MAX735x as supported chip to PCA954x and add an
example how to use it.

Signed-off-by: Patrick Rudolph <patrick.rudolph@...ements.com>
---
 .../bindings/i2c/i2c-mux-pca954x.yaml         | 40 +++++++++++++++++++
 1 file changed, 40 insertions(+)

diff --git a/Documentation/devicetree/bindings/i2c/i2c-mux-pca954x.yaml b/Documentation/devicetree/bindings/i2c/i2c-mux-pca954x.yaml
index 9f1726d0356b..bd794cb80c11 100644
--- a/Documentation/devicetree/bindings/i2c/i2c-mux-pca954x.yaml
+++ b/Documentation/devicetree/bindings/i2c/i2c-mux-pca954x.yaml
@@ -11,6 +11,7 @@ maintainers:
 
 description:
   The binding supports NXP PCA954x and PCA984x I2C mux/switch devices.
+  Compatible with Maxim MAX7356 - MAX7358 I2C mux/switch devices.
 
 allOf:
   - $ref: /schemas/i2c/i2c-mux.yaml#
@@ -19,6 +20,9 @@ properties:
   compatible:
     oneOf:
       - enum:
+          - maxim,max7356
+          - maxim,max7357
+          - maxim,max7358
           - nxp,pca9540
           - nxp,pca9542
           - nxp,pca9543
@@ -40,6 +44,7 @@ properties:
 
   interrupts:
     maxItems: 1
+    description: Only supported on NXP devices. Unsupported on Maxim MAX735x.
 
   "#interrupt-cells":
     const: 2
@@ -100,6 +105,41 @@ examples:
                 #size-cells = <0>;
                 reg = <4>;
 
+                rtc@51 {
+                    compatible = "nxp,pcf8563";
+                    reg = <0x51>;
+                };
+            };
+        };
+    };
+
+  - |
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        i2c-mux@74 {
+            compatible = "maxim,max7357";
+            #address-cells = <1>;
+            #size-cells = <0>;
+            reg = <0x74>;
+
+            i2c@1 {
+                #address-cells = <1>;
+                #size-cells = <0>;
+                reg = <1>;
+
+                eeprom@54 {
+                    compatible = "atmel,24c08";
+                    reg = <0x54>;
+                };
+            };
+
+            i2c@7 {
+                #address-cells = <1>;
+                #size-cells = <0>;
+                reg = <7>;
+
                 rtc@51 {
                     compatible = "nxp,pcf8563";
                     reg = <0x51>;
-- 
2.33.1