Merge tag 'i2c-for-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux

Pull i2c updates from Wolfram Sang:
 "Mostly DT bindings additions this time because Andi was super busy and
  I also could only partly cover it.

   - new ids for qcom-cci, mt65xx, exynos5, apple, tegra20, k1, i801

   - drop support for already removed S3C2410

   - introduce and use fwnode_for_each_child_node_scoped()

   - mmt65xx: improve write-then-read transactions

   - k1: various fixes around bus errors and resets

   - usual share of cleanups, minor improvements, PM fixes...

  at24 updates:

   - add the compatible for Giantec GT24C256C to the device-tree
     bindings"

* tag 'i2c-for-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (33 commits)
  i2c: i801: Add support for Intel Wildcat Lake-U
  dt-bindings: i2c: i2c-mt65xx: Add MediaTek MT8196/6991 compatibles
  i2c: designware: Add disabling clocks when probe fails
  i2c: designware: Fix clock issue when PM is disabled
  i2c: busses: Fix some spelling errors
  i2c: mux: Simplify boolean assignment in i2c_mux_alloc
  i2c: designware: use dev_err_probe() when probing platform device
  i2c: designware: convert to dev_err_probe() on request IRQ error
  i2c: spacemit: ensure SDA is released after bus reset
  i2c: spacemit: check SDA instead of SCL after bus reset
  i2c: spacemit: disable SDA glitch fix to avoid restart delay
  i2c: spacemit: remove stop function to avoid bus error
  i2c: spacemit: ensure bus release check runs when wait_bus_idle() fails
  i2c: mediatek: fix potential incorrect use of I2C_MASTER_WRRD
  i2c: boardinfo: Annotate code used in init phase only
  dt-bindings: i2c: i2c-mt65xx: Document MediaTek MT6878 I2C
  dt-bindings: i2c: samsung,s3c2410-i2c: Drop S3C2410
  i2c: s3c2410: Drop S3C2410 OF support
  dt-bindings: i2c: spacemit,k1-i2c: Minor whitespace cleanup in example
  dt-bindings: i2c: exynos5: add samsung,exynos8890-hsi2c compatible
  ...

Author: torvalds

Documentation/devicetree/bindings/eeprom/at24.yaml

@@ -143,6 +143,7 @@ properties:
           - const: atmel,24c128
       - items:
           - enum:
+              - giantec,gt24c256c
               - puya,p24c256c
           - const: atmel,24c256
       - items:

Documentation/devicetree/bindings/i2c/apple,i2c.yaml

@@ -20,17 +20,22 @@ allOf:
 
 properties:
   compatible:
-    items:
-      - enum:
-          - apple,s5l8960x-i2c
-          - apple,t7000-i2c
-          - apple,s8000-i2c
-          - apple,t8010-i2c
-          - apple,t8015-i2c
-          - apple,t8103-i2c
-          - apple,t8112-i2c
-          - apple,t6000-i2c
-      - const: apple,i2c
+    oneOf:
+      - items:
+          - const: apple,t6020-i2c
+          - const: apple,t8103-i2c
+      - items:
+          - enum:
+              # Do not add additional SoC to this list.
+              - apple,s5l8960x-i2c
+              - apple,t7000-i2c
+              - apple,s8000-i2c
+              - apple,t8010-i2c
+              - apple,t8015-i2c
+              - apple,t8103-i2c
+              - apple,t8112-i2c
+              - apple,t6000-i2c
+          - const: apple,i2c
 
   reg:
     maxItems: 1

Documentation/devicetree/bindings/i2c/i2c-exynos5.yaml

@@ -33,11 +33,16 @@ properties:
               - samsung,exynos7870-hsi2c
               - tesla,fsd-hsi2c
           - const: samsung,exynos7-hsi2c
+      - items:
+          - enum:
+              - samsung,exynos8890-hsi2c
+          - const: samsung,exynos8895-hsi2c
       - items:
           - enum:
               - google,gs101-hsi2c
               - samsung,exynos2200-hsi2c
               - samsung,exynos850-hsi2c
+              - samsung,exynos990-hsi2c
           - const: samsung,exynosautov9-hsi2c
       - const: samsung,exynos5-hsi2c    # Exynos5250 and Exynos5420
         deprecated: true

Documentation/devicetree/bindings/i2c/i2c-mt65xx.yaml

@@ -50,6 +50,12 @@ properties:
           - enum:
               - mediatek,mt6795-i2c
           - const: mediatek,mt8173-i2c
+      - items:
+          - enum:
+              - mediatek,mt6878-i2c
+              - mediatek,mt6991-i2c
+              - mediatek,mt8196-i2c
+          - const: mediatek,mt8188-i2c
       - items:
           - enum:
               - mediatek,mt6893-i2c

Documentation/devicetree/bindings/i2c/nvidia,tegra20-i2c.yaml

@@ -80,6 +80,11 @@ properties:
           support for 64 KiB transactions whereas earlier chips supported no
           more than 4 KiB per transactions.
         const: nvidia,tegra194-i2c
+      - description: |
+          Tegra256 has 8 generic I2C controllers. The controllers are similar to
+          the previous generations, but have a different parent clock and hence
+          the timing parameters are configured differently.
+        const: nvidia,tegra256-i2c
 
   reg:
     maxItems: 1
@@ -186,6 +191,7 @@ allOf:
             contains:
               enum:
                 - nvidia,tegra194-i2c
+                - nvidia,tegra256-i2c
     then:
       required:
         - resets

Documentation/devicetree/bindings/i2c/qcom,i2c-cci.yaml

@@ -25,6 +25,8 @@ properties:
 
       - items:
           - enum:
+              - qcom,qcm2290-cci
+              - qcom,sa8775p-cci
               - qcom,sc7280-cci
               - qcom,sc8280xp-cci
               - qcom,sdm670-cci
@@ -44,11 +46,11 @@ properties:
     const: 0
 
   clocks:
-    minItems: 3
+    minItems: 2
     maxItems: 6
 
   clock-names:
-    minItems: 3
+    minItems: 2
     maxItems: 6
 
   interrupts:
@@ -113,13 +115,30 @@ allOf:
     then:
       properties:
         clocks:
+          minItems: 3
           maxItems: 3
         clock-names:
           items:
             - const: camss_top_ahb
             - const: cci_ahb
             - const: cci
 
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - qcom,qcm2290-cci
+    then:
+      properties:
+        clocks:
+          minItems: 2
+          maxItems: 2
+        clock-names:
+          items:
+            - const: ahb
+            - const: cci
+
   - if:
       properties:
         compatible:
@@ -223,6 +242,7 @@ allOf:
         compatible:
           contains:
             enum:
+              - qcom,sa8775p-cci
               - qcom,sm8550-cci
               - qcom,sm8650-cci
               - qcom,x1e80100-cci

Documentation/devicetree/bindings/i2c/samsung,s3c2410-i2c.yaml

@@ -13,7 +13,6 @@ properties:
   compatible:
     oneOf:
       - enum:
-          - samsung,s3c2410-i2c
           - samsung,s3c2440-i2c
             # For s3c2440-like I2C used inside HDMIPHY block found on several SoCs:
           - samsung,s3c2440-hdmiphy-i2c
@@ -93,7 +92,6 @@ allOf:
         compatible:
           contains:
             enum:
-              - samsung,s3c2410-i2c
               - samsung,s3c2440-i2c
               - samsung,s3c2440-hdmiphy-i2c
     then:

Documentation/devicetree/bindings/i2c/spacemit,k1-i2c.yaml

@@ -56,7 +56,7 @@ examples:
         reg = <0xd4010800 0x38>;
         interrupt-parent = <&plic>;
         interrupts = <36>;
-        clocks =<&ccu 32>, <&ccu 84>;
+        clocks = <&ccu 32>, <&ccu 84>;
         clock-names = "func", "bus";
         clock-frequency = <100000>;
     };

Documentation/i2c/busses/i2c-i801.rst

@@ -50,6 +50,7 @@ Supported adapters:
   * Intel Birch Stream (SOC)
   * Intel Arrow Lake (SOC)
   * Intel Panther Lake (SOC)
+  * Intel Wildcat Lake (SOC)
 
    Datasheets: Publicly available at the Intel website
 

drivers/i2c/busses/Kconfig

@@ -165,6 +165,7 @@ config I2C_I801
 	    Birch Stream (SOC)
 	    Arrow Lake (SOC)
 	    Panther Lake (SOC)
+	    Wildcat Lake (SOC)
 
 	  This driver can also be built as a module.  If so, the module
 	  will be called i2c-i801.