Merge tag 'i2c-for-6.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux

Pull i2c updates from Wolfram Sang:
 "i2c-core updates (collected by Wolfram):
   - remove last user and unexport i2c_of_match_device()
   - irq usage cleanup from Jiri

  i2c-host updates (collected by Andi):

  Refactoring and cleanups:
   - octeon, cadence, i801, pasemi, mlxbf, bcm-iproc: general
     refactorings
   - octeon: remove 10-bit address support

  Improvements:
   - amd-asf: improved error handling
   - designware: use guard(mutex)
   - amd-asf, designware: update naming to follow latest specs
   - cadence: fix cleanup path in probe
   - i801: use MMIO and I/O mapping helpers to access registers
   - pxa: handle error after clk_prepare_enable

  New features:
   - added i2c_10bit_addr_*_from_msg() and updated multiple drivers
   - omap: added multiplexer state handling
   - qcom-geni: update frequency configuration
   - qup: introduce DMA usage policy

  New hardware support:
   - exynos: add support for Samsung exynos7870
   - k1: add support for spacemit k1 (new driver)
   - imx: add support for i.mx94 lpi2c
   - rk3x: add support for rk3562
   - designware: add support for Renesas RZ/N1D

  Multiplexers:
   - ltc4306, reg: fix assignment in platform_driver structure

  at24 eeprom updates (collected by Bartosz):
   - add two new compatible entries to the DT binding document
   - drop of_match_ptr() and ACPI_PTR() macros"

* tag 'i2c-for-6.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (50 commits)
  dt-bindings: i2c: snps,designware-i2c: describe Renesas RZ/N1D variant
  irqdomain: i2c: Switch to irq_find_mapping()
  i2c: iproc: Refactor prototype and remove redundant error checks
  i2c: qcom-geni: Update i2c frequency table to match hardware guidance
  i2c: mlxbf: Use readl_poll_timeout_atomic() for polling
  i2c: pasemi: Add registers bits and switch to BIT()
  i2c: k1: Initialize variable before use
  i2c: spacemit: add support for SpacemiT K1 SoC
  dt-bindings: i2c: spacemit: add support for K1 SoC
  i2c: omap: Add support for setting mux
  dt-bindings: i2c: omap: Add mux-states property
  i2c: octeon: remove 10-bit addressing support
  i2c: octeon: fix return commenting
  i2c: i801: Use MMIO if available
  i2c: i801: Switch to iomapped register access
  i2c: i801: Improve too small kill wait time in i801_check_post
  i2c: i801: Move i801_wait_intr and i801_wait_byte_done in the code
  i2c: i801: Cosmetic improvements
  i2c: cadence: Move reset_control_assert after pm_runtime_set_suspended in probe error path
  i2c: cadence: Simplify using devm_clk_get_enabled()
  ...

Author: torvalds

Documentation/devicetree/bindings/eeprom/at24.yaml

@@ -130,10 +130,13 @@ properties:
           - const: giantec,gt24c32a
           - const: atmel,24c32
       - items:
-          - const: onnn,n24s64b
+          - enum:
+              - onnn,n24s64b
+              - puya,p24c64f
           - const: atmel,24c64
       - items:
           - enum:
+              - giantec,gt24p128e
               - giantec,gt24p128f
               - renesas,r1ex24128
               - samsung,s524ad0xd1

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

@@ -30,6 +30,7 @@ properties:
       - items:
           - enum:
               - samsung,exynos5433-hsi2c
+              - samsung,exynos7870-hsi2c
               - tesla,fsd-hsi2c
           - const: samsung,exynos7-hsi2c
       - items:

Documentation/devicetree/bindings/i2c/i2c-imx-lpi2c.yaml

@@ -26,6 +26,7 @@ properties:
               - fsl,imx8qm-lpi2c
               - fsl,imx8ulp-lpi2c
               - fsl,imx93-lpi2c
+              - fsl,imx94-lpi2c
               - fsl,imx95-lpi2c
           - const: fsl,imx7ulp-lpi2c
 

Documentation/devicetree/bindings/i2c/i2c-rk3x.yaml

@@ -37,6 +37,7 @@ properties:
               - rockchip,px30-i2c
               - rockchip,rk3308-i2c
               - rockchip,rk3328-i2c
+              - rockchip,rk3562-i2c
               - rockchip,rk3568-i2c
               - rockchip,rk3576-i2c
               - rockchip,rk3588-i2c

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

@@ -40,6 +40,9 @@ properties:
       - const: tx
       - const: rx
 
+  interconnects:
+    maxItems: 1
+
   interrupts:
     maxItems: 1
 
@@ -52,9 +55,15 @@ properties:
       - const: default
       - const: sleep
 
+  power-domains:
+    maxItems: 1
+
   reg:
     maxItems: 1
 
+  required-opps:
+    maxItems: 1
+
 required:
   - compatible
   - clock-names
@@ -67,7 +76,9 @@ unevaluatedProperties: false
 examples:
   - |
     #include <dt-bindings/clock/qcom,gcc-msm8998.h>
+    #include <dt-bindings/interconnect/qcom,msm8996.h>
     #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/power/qcom-rpmpd.h>
 
     i2c@c175000 {
         compatible = "qcom,i2c-qup-v2.2.1";
@@ -82,6 +93,9 @@ examples:
         pinctrl-names = "default", "sleep";
         pinctrl-0 = <&blsp1_i2c1_default>;
         pinctrl-1 = <&blsp1_i2c1_sleep>;
+        power-domains = <&rpmpd MSM8909_VDDCX>;
+        required-opps = <&rpmpd_opp_svs_krait>;
+        interconnects = <&pnoc MASTER_BLSP_1 &bimc SLAVE_EBI_CH0>;
         clock-frequency = <400000>;
 
         #address-cells = <1>;

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

@@ -22,6 +22,7 @@ properties:
           - samsung,exynos5-sata-phy-i2c
       - items:
           - enum:
+              - samsung,exynos7870-i2c
               - samsung,exynos7885-i2c
               - samsung,exynos850-i2c
           - const: samsung,s3c2440-i2c

Documentation/devicetree/bindings/i2c/snps,designware-i2c.yaml

@@ -27,6 +27,11 @@ properties:
     oneOf:
       - description: Generic Synopsys DesignWare I2C controller
         const: snps,designware-i2c
+      - description: Renesas RZ/N1D I2C controller
+        items:
+          - const: renesas,r9a06g032-i2c  # RZ/N1D
+          - const: renesas,rzn1-i2c       # RZ/N1
+          - const: snps,designware-i2c
       - description: Microsemi Ocelot SoCs I2C controller
         items:
           - const: mscc,ocelot-i2c

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

@@ -0,0 +1,61 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/i2c/spacemit,k1-i2c.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: I2C controller embedded in SpacemiT's K1 SoC
+
+maintainers:
+  - Troy Mitchell <troymitchell988@gmail.com>
+
+properties:
+  compatible:
+    const: spacemit,k1-i2c
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    items:
+      - description: I2C Functional Clock
+      - description: APB Bus Clock
+
+  clock-names:
+    items:
+      - const: func
+      - const: bus
+
+  clock-frequency:
+    description: |
+      K1 support three different modes which running different frequencies
+      standard speed mode: up to 100000 (100Hz)
+      fast speed mode    : up to 400000 (400Hz)
+      high speed mode    : up to 3300000 (3.3Mhz)
+    default: 400000
+    maximum: 3300000
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    i2c@d4010800 {
+        compatible = "spacemit,k1-i2c";
+        reg = <0xd4010800 0x38>;
+        interrupt-parent = <&plic>;
+        interrupts = <36>;
+        clocks =<&ccu 32>, <&ccu 84>;
+        clock-names = "func", "bus";
+        clock-frequency = <100000>;
+    };
+
+...

Documentation/devicetree/bindings/i2c/ti,omap4-i2c.yaml

@@ -47,6 +47,11 @@ properties:
     $ref: /schemas/types.yaml#/definitions/string
     deprecated: true
 
+  mux-states:
+    description:
+      mux controller node to route the I2C signals from SoC to clients.
+    maxItems: 1
+
 required:
   - compatible
   - reg
@@ -87,4 +92,5 @@ examples:
         interrupts = <GIC_SPI 200 IRQ_TYPE_LEVEL_HIGH>;
         #address-cells = <1>;
         #size-cells = <0>;
+        mux-states = <&i2c_mux 1>;
     };

drivers/i2c/busses/Kconfig

@@ -783,6 +783,23 @@ config I2C_JZ4780
 
 	 If you don't know what to do here, say N.
 
+config I2C_K1
+	tristate "SpacemiT K1 I2C adapter"
+	depends on ARCH_SPACEMIT || COMPILE_TEST
+	depends on OF
+	help
+	  This option enables support for the I2C interface on the SpacemiT K1
+	  platform.
+
+	  If you enable this configuration, the kernel will include support for
+	  the I2C adapter specific to the SpacemiT K1 platform. This driver can
+	  be used to manage I2C bus transactions, which are necessary for
+	  interfacing with I2C peripherals such as sensors, EEPROMs, and other
+	  devices.
+
+	  This driver can also be built as a module.  If so, the
+	  module will be called `i2c-k1`.
+
 config I2C_KEBA
 	tristate "KEBA I2C controller support"
 	depends on HAS_IOMEM
@@ -940,6 +957,7 @@ config I2C_OMAP
 	tristate "OMAP I2C adapter"
 	depends on ARCH_OMAP || ARCH_K3 || COMPILE_TEST
 	default MACH_OMAP_OSK
+	select MULTIPLEXER
 	help
 	  If you say yes to this option, support will be included for the
 	  I2C interface on the Texas Instruments OMAP1/2 family of processors.