Merge branch 'i2c/for-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux

Pull i2c updates from Wolfram Sang:

 - bus recovery can now be given a pinctrl handle and the I2C core will
   do all the steps to switch to/from GPIO which can save quite some
   boilerplate code from drivers

 - "fallthrough" conversion

 - driver updates, mostly ID additions

* 'i2c/for-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (32 commits)
  i2c: iproc: fix race between client unreg and isr
  i2c: eg20t: use generic power management
  i2c: eg20t: Drop PCI wakeup calls from .suspend/.resume
  i2c: mediatek: Fix i2c_spec_values description
  i2c: mediatek: Add i2c compatible for MediaTek MT8192
  dt-bindings: i2c: update bindings for MT8192 SoC
  i2c: mediatek: Add access to more than 8GB dram in i2c driver
  i2c: mediatek: Add apdma sync in i2c driver
  i2c: i801: Add support for Intel Tiger Lake PCH-H
  i2c: i801: Add support for Intel Emmitsburg PCH
  i2c: bcm2835: Replace HTTP links with HTTPS ones
  Documentation: i2c: dev: 'block process call' is supported
  i2c: at91: Move to generic GPIO bus recovery
  i2c: core: treat EPROBE_DEFER when acquiring SCL/SDA GPIOs
  i2c: core: add generic I2C GPIO recovery
  dt-bindings: i2c: add generic properties for GPIO bus recovery
  i2c: rcar: avoid race when unregistering slave
  i2c: tegra: Avoid tegra_i2c_init_dma() for Tegra210 vi i2c
  i2c: tegra: Fix runtime resume to re-init VI I2C
  i2c: tegra: Fix the error path in tegra_i2c_runtime_resume
  ...

Author: torvalds

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

@@ -14,6 +14,7 @@ Required properties:
       "mediatek,mt7629-i2c", "mediatek,mt2712-i2c": for MediaTek MT7629
       "mediatek,mt8173-i2c": for MediaTek MT8173
       "mediatek,mt8183-i2c": for MediaTek MT8183
+      "mediatek,mt8192-i2c": for MediaTek MT8192
       "mediatek,mt8516-i2c", "mediatek,mt2712-i2c": for MediaTek MT8516
   - reg: physical base address of the controller and dma base, length of memory
     mapped region.

Documentation/devicetree/bindings/i2c/i2c.txt

@@ -72,6 +72,16 @@ wants to support one of the below features, it should adapt these bindings.
 	this information to adapt power management to keep the arbitration awake
 	all the time, for example. Can not be combined with 'single-master'.
 
+- pinctrl
+	add extra pinctrl to configure SCL/SDA pins to GPIO function for bus
+	recovery, call it "gpio" or "recovery" (deprecated) state
+
+- scl-gpios
+	specify the gpio related to SCL pin. Used for GPIO bus recovery.
+
+- sda-gpios
+	specify the gpio related to SDA pin. Optional for GPIO bus recovery.
+
 - single-master
 	states that there is no other master active on this bus. The OS can use
 	this information to detect a stalled bus more reliably, for example.

Documentation/devicetree/bindings/i2c/marvell,mv64xxx-i2c.yaml

@@ -26,6 +26,9 @@ properties:
       - items:
           - const: allwinner,sun50i-a64-i2c
           - const: allwinner,sun6i-a31-i2c
+      - items:
+          - const: allwinner,sun50i-a100-i2c
+          - const: allwinner,sun6i-a31-i2c
       - items:
           - const: allwinner,sun50i-h6-i2c
           - const: allwinner,sun6i-a31-i2c

Documentation/devicetree/bindings/i2c/renesas,i2c.txt

@@ -10,6 +10,7 @@ Required properties:
 	"renesas,i2c-r8a774a1" if the device is a part of a R8A774A1 SoC.
 	"renesas,i2c-r8a774b1" if the device is a part of a R8A774B1 SoC.
 	"renesas,i2c-r8a774c0" if the device is a part of a R8A774C0 SoC.
+	"renesas,i2c-r8a774e1" if the device is a part of a R8A774E1 SoC.
 	"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.

Documentation/devicetree/bindings/i2c/renesas,iic.txt

@@ -11,6 +11,7 @@ Required properties:
 			- "renesas,iic-r8a774a1" (RZ/G2M)
 			- "renesas,iic-r8a774b1" (RZ/G2N)
 			- "renesas,iic-r8a774c0" (RZ/G2E)
+			- "renesas,iic-r8a774e1" (RZ/G2H)
 			- "renesas,iic-r8a7790" (R-Car H2)
 			- "renesas,iic-r8a7791" (R-Car M2-W)
 			- "renesas,iic-r8a7792" (R-Car V2H)

Documentation/i2c/busses/i2c-i801.rst

@@ -43,6 +43,7 @@ Supported adapters:
   * Intel Elkhart Lake (PCH)
   * Intel Tiger Lake (PCH)
   * Intel Jasper Lake (SOC)
+  * Intel Emmitsburg (PCH)
 
    Datasheets: Publicly available at the Intel website
 

Documentation/i2c/dev-interface.rst

@@ -159,6 +159,8 @@ for details) through the following functions::
   __s32 i2c_smbus_read_word_data(int file, __u8 command);
   __s32 i2c_smbus_write_word_data(int file, __u8 command, __u16 value);
   __s32 i2c_smbus_process_call(int file, __u8 command, __u16 value);
+  __s32 i2c_smbus_block_process_call(int file, __u8 command, __u8 length,
+                                     __u8 *values);
   __s32 i2c_smbus_read_block_data(int file, __u8 command, __u8 *values);
   __s32 i2c_smbus_write_block_data(int file, __u8 command, __u8 length,
                                    __u8 *values);

drivers/i2c/algos/i2c-algo-pca.c

@@ -542,8 +542,8 @@ int i2c_pca_add_numbered_bus(struct i2c_adapter *adap)
 }
 EXPORT_SYMBOL(i2c_pca_add_numbered_bus);
 
-MODULE_AUTHOR("Ian Campbell <icampbell@arcom.com>, "
-	"Wolfram Sang <kernel@pengutronix.de>");
+MODULE_AUTHOR("Ian Campbell <icampbell@arcom.com>");
+MODULE_AUTHOR("Wolfram Sang <kernel@pengutronix.de>");
 MODULE_DESCRIPTION("I2C-Bus PCA9564/PCA9665 algorithm");
 MODULE_LICENSE("GPL");
 

drivers/i2c/busses/Kconfig

@@ -146,6 +146,7 @@ config I2C_I801
 	    Elkhart Lake (PCH)
 	    Tiger Lake (PCH)
 	    Jasper Lake (SOC)
+	    Emmitsburg (PCH)
 
 	  This driver can also be built as a module.  If so, the module
 	  will be called i2c-i801.

drivers/i2c/busses/i2c-ali1535.c

@@ -519,9 +519,9 @@ static struct pci_driver ali1535_driver = {
 
 module_pci_driver(ali1535_driver);
 
-MODULE_AUTHOR("Frodo Looijaard <frodol@dds.nl>, "
-	      "Philip Edelbrock <phil@netroedge.com>, "
-	      "Mark D. Studebaker <mdsxyz123@yahoo.com> "
-	      "and Dan Eaton <dan.eaton@rocketlogix.com>");
+MODULE_AUTHOR("Frodo Looijaard <frodol@dds.nl>");
+MODULE_AUTHOR("Philip Edelbrock <phil@netroedge.com>");
+MODULE_AUTHOR("Mark D. Studebaker <mdsxyz123@yahoo.com>");
+MODULE_AUTHOR("Dan Eaton <dan.eaton@rocketlogix.com>");
 MODULE_DESCRIPTION("ALI1535 SMBus driver");
 MODULE_LICENSE("GPL");