Merge branch 'i2c/for-4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux

Pull i2c updates from Wolfram Sang:

 - the first series of making i2c_device_id optional instead of
   mandatory (in favor of alternatives like of_device_id).

   This involves adding a new probe callback (probe_new) which removes
   some peculiarities I2C had for a long time now. The new probe is
   matching the other subsystems now and the old one will be removed
   once all users are converted. It is expected to take a while but
   there is ongoing interest in that.

 - SMBus Host Notify introduced 4.9 got refactored. They are now using
   interrupts instead of the alert callback which solves multiple
   issues.

 - new drivers for iMX LowPower I2C, Mellanox CPLD and its I2C mux

 - significant refactoring for bcm2835 driver

 - the usual set of driver updates and improvements

* 'i2c/for-4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (46 commits)
  i2c: fsl-lpi2c: read lpi2c fifo size in probe()
  i2c: octeon: thunderx: Remove double-check after interrupt
  i2c: octeon: thunderx: TWSI software reset in recovery
  i2c: cadence: Allow Cadence I2C to be selected for Cadence Xtensa CPUs
  i2c: sh_mobile: Add per-Generation fallback bindings
  i2c: rcar: Add per-Generation fallback bindings
  i2c: imx-lpi2c: add low power i2c bus driver
  dt-bindings: i2c: imx-lpi2c: add devicetree bindings
  i2c: designware-pcidrv: Add 10bit address feature to medfield/merrifield
  i2c: pxa: Add support for the I2C units found in Armada 3700
  i2c: pxa: Add definition of fast and high speed modes via the regs layout
  dt-bindings: i2c: pxa: Update the documentation for the Armada 3700
  i2c: qup: support SMBus block read
  i2c: qup: add ACPI support
  i2c: designware: Consolidate default functionality bits
  i2c: i2c-mux-gpio: update mux with gpiod_set_array_value_cansleep
  i2c: mux: pca954x: Add ACPI support for pca954x
  i2c: use an IRQ to report Host Notify events, not alert
  i2c: i801: remove SMBNTFDDAT reads as they always seem to return 0
  i2c: i801: use the BIT() macro for FEATURES_* also
  ...

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

@@ -0,0 +1,20 @@
+* Freescale Low Power Inter IC (LPI2C) for i.MX
+
+Required properties:
+- compatible :
+  - "fsl,imx7ulp-lpi2c" for LPI2C compatible with the one integrated on i.MX7ULP soc
+  - "fsl,imx8dv-lpi2c" for LPI2C compatible with the one integrated on i.MX8DV soc
+- reg : address and length of the lpi2c master registers
+- interrupt-parent : core interrupt controller
+- interrupts : lpi2c interrupt
+- clocks : lpi2c clock specifier
+
+Examples:
+
+lpi2c7: lpi2c7@40A50000 {
+	compatible = "fsl,imx8dv-lpi2c";
+	reg = <0x40A50000 0x10000>;
+	interrupt-parent = <&intc>;
+	interrupts = <GIC_SPI 37 IRQ_TYPE_LEVEL_HIGH>;
+	clocks = <&clks IMX7ULP_CLK_LPI2C7>;
+};

Documentation/devicetree/bindings/i2c/i2c-pxa.txt

@@ -7,6 +7,7 @@ Required properties :
    compatible processor, e.g. pxa168, pxa910, mmp2, mmp3.
    For the pxa2xx/pxa3xx, an additional node "mrvl,pxa-i2c" is required
    as shown in the example below.
+   For the Armada 3700, the compatible should be "marvell,armada-3700-i2c".
 
 Recommended properties :
 

Documentation/devicetree/bindings/i2c/i2c-rcar.txt

@@ -1,17 +1,25 @@
 I2C for R-Car platforms
 
 Required properties:
-- compatible: Must be one of
-	"renesas,i2c-rcar"
-	"renesas,i2c-r8a7778"
-	"renesas,i2c-r8a7779"
-	"renesas,i2c-r8a7790"
-	"renesas,i2c-r8a7791"
-	"renesas,i2c-r8a7792"
-	"renesas,i2c-r8a7793"
-	"renesas,i2c-r8a7794"
-	"renesas,i2c-r8a7795"
-	"renesas,i2c-r8a7796"
+- compatible:
+	"renesas,i2c-r8a7778" if the device is a part of a R8A7778 SoC.
+	"renesas,i2c-r8a7779" if the device is a part of a R8A7779 SoC.
+	"renesas,i2c-r8a7790" if the device is a part of a R8A7790 SoC.
+	"renesas,i2c-r8a7791" if the device is a part of a R8A7791 SoC.
+	"renesas,i2c-r8a7792" if the device is a part of a R8A7792 SoC.
+	"renesas,i2c-r8a7793" if the device is a part of a R8A7793 SoC.
+	"renesas,i2c-r8a7794" if the device is a part of a R8A7794 SoC.
+	"renesas,i2c-r8a7795" if the device is a part of a R8A7795 SoC.
+	"renesas,i2c-r8a7796" if the device is a part of a R8A7796 SoC.
+	"renesas,rcar-gen1-i2c" for a generic R-Car Gen1 compatible device.
+	"renesas,rcar-gen2-i2c" for a generic R-Car Gen2 compatible device.
+	"renesas,rcar-gen3-i2c" for a generic R-Car Gen3 compatible device.
+	"renesas,i2c-rcar" (deprecated)
+
+	When compatible with the generic version, nodes must list the
+	SoC-specific version corresponding to the platform first followed
+	by the generic version.
+
 - reg: physical base address of the controller and length of memory mapped
   region.
 - interrupts: interrupt specifier.
@@ -33,7 +41,7 @@ Examples :
 i2c0: i2c@e6508000 {
 	#address-cells = <1>;
 	#size-cells = <0>;
-	compatible = "renesas,i2c-r8a7791";
+	compatible = "renesas,i2c-r8a7791", "renesas,rcar-gen2-i2c";
 	reg = <0 0xe6508000 0 0x40>;
 	interrupts = <0 287 IRQ_TYPE_LEVEL_HIGH>;
 	clocks = <&mstp9_clks R8A7791_CLK_I2C0>;

Documentation/devicetree/bindings/i2c/i2c-sh_mobile.txt

@@ -1,8 +1,7 @@
 Device tree configuration for Renesas IIC (sh_mobile) driver
 
 Required properties:
-- compatible      : "renesas,iic-<soctype>". "renesas,rmobile-iic" as fallback
-		     Examples with soctypes are:
+- compatible      :
 			- "renesas,iic-r8a73a4" (R-Mobile APE6)
 			- "renesas,iic-r8a7740" (R-Mobile A1)
 			- "renesas,iic-r8a7790" (R-Car H2)
@@ -12,6 +11,17 @@ Required properties:
 			- "renesas,iic-r8a7794" (R-Car E2)
 			- "renesas,iic-r8a7795" (R-Car H3)
 			- "renesas,iic-sh73a0" (SH-Mobile AG5)
+			- "renesas,rcar-gen2-iic" (generic R-Car Gen2 compatible device)
+			- "renesas,rcar-gen3-iic" (generic R-Car Gen3 compatible device)
+			- "renesas,rmobile-iic" (generic device)
+
+			When compatible with a generic R-Car version, nodes
+			must list the SoC-specific version corresponding to
+			the platform first followed by the generic R-Car
+			version.
+
+			renesas,rmobile-iic must always follow.
+
 - reg             : address start and address range size of device
 - interrupts      : interrupt of device
 - clocks          : clock for device
@@ -31,7 +41,8 @@ Pinctrl properties might be needed, too. See there.
 Example:
 
 	iic0: i2c@e6500000 {
-		compatible = "renesas,iic-r8a7790", "renesas,rmobile-iic";
+		compatible = "renesas,iic-r8a7790", "renesas,rcar-gen2-iic",
+			     "renesas,rmobile-iic";
 		reg = <0 0xe6500000 0 0x425>;
 		interrupts = <0 174 IRQ_TYPE_LEVEL_HIGH>;
 		clocks = <&mstp3_clks R8A7790_CLK_IIC0>;