Commit 29fdd5ba authored by Linus Torvalds's avatar Linus Torvalds
Browse files

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

Pull i2c fixes from Wolfram Sang:
 "Here is the fixup for the 'lowlight' of my last pull request.  I2C is
  not selected anymore by I2C_ACPI.  Instead, the code in question now
  depends on I2C=y.

  Also, Mika has agreed to support me and be the maintainer for I2C-ACPI
  related patches.  Finally, a new-ID-patch came along last week"

* 'i2c/for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
  MAINTAINERS: add maintainer for ACPI parts of I2C
  i2c: i801: Add PCI ID for Intel Braswell
  i2c: rework kernel config I2C_ACPI
parents d1433d55 4560d677

MAINTAINERS

+7 −0
Original line number Diff line number Diff line
@@ -4446,6 +4446,13 @@ F: include/linux/i2c-*.h 
F:	include/uapi/linux/i2c.h

F:	include/uapi/linux/i2c-*.h



I2C ACPI SUPPORT

M:	Mika Westerberg <mika.westerberg@linux.intel.com>

L:	linux-i2c@vger.kernel.org

L:	linux-acpi@vger.kernel.org

S:	Maintained

F:	drivers/i2c/i2c-acpi.c



I2C-TAOS-EVM DRIVER

M:	Jean Delvare <jdelvare@suse.de>

L:	linux-i2c@vger.kernel.org

drivers/i2c/Kconfig

+6 −9
Original line number Diff line number Diff line
@@ -23,17 +23,14 @@ config I2C 
	  This I2C support can also be built as a module.  If so, the module

	  will be called i2c-core.



config I2C_ACPI

	bool "I2C ACPI support"

	select I2C

	depends on ACPI

config ACPI_I2C_OPREGION

	bool "ACPI I2C Operation region support"

	depends on I2C=y && ACPI

	default y

	help

	  Say Y here if you want to enable ACPI I2C support. This includes support

	  for automatic enumeration of I2C slave devices and support for ACPI I2C

	  Operation Regions. Operation Regions allow firmware (BIOS) code to

	  access I2C slave devices, such as smart batteries through an I2C host

	  controller driver.

	  Say Y here if you want to enable ACPI I2C operation region support.

	  Operation Regions allow firmware (BIOS) code to access I2C slave devices,

	  such as smart batteries through an I2C host controller driver.



if I2C

drivers/i2c/Makefile

+1 −1
Original line number Diff line number Diff line
@@ -3,7 +3,7 @@ 
#



i2ccore-y := i2c-core.o

i2ccore-$(CONFIG_I2C_ACPI)	+= i2c-acpi.o

i2ccore-$(CONFIG_ACPI)	 	+= i2c-acpi.o



obj-$(CONFIG_I2C_BOARDINFO)	+= i2c-boardinfo.o

obj-$(CONFIG_I2C)		+= i2ccore.o

drivers/i2c/busses/i2c-i801.c

+2 −0
Original line number Diff line number Diff line
@@ -164,6 +164,7 @@ 


/* Older devices have their ID defined in <linux/pci_ids.h> */

#define PCI_DEVICE_ID_INTEL_BAYTRAIL_SMBUS		0x0f12

#define PCI_DEVICE_ID_INTEL_BRASWELL_SMBUS		0x2292

#define PCI_DEVICE_ID_INTEL_COUGARPOINT_SMBUS		0x1c22

#define PCI_DEVICE_ID_INTEL_PATSBURG_SMBUS		0x1d22

/* Patsburg also has three 'Integrated Device Function' SMBus controllers */
@@ -828,6 +829,7 @@ static const struct pci_device_id i801_ids[] = { 
	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_WILDCATPOINT_SMBUS) },

	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_WILDCATPOINT_LP_SMBUS) },

	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_BAYTRAIL_SMBUS) },

	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_BRASWELL_SMBUS) },

	{ 0, }

};

drivers/i2c/i2c-acpi.c

+2 −0
Original line number Diff line number Diff line
@@ -126,6 +126,7 @@ void acpi_i2c_register_devices(struct i2c_adapter *adap) 
		dev_warn(&adap->dev, "failed to enumerate I2C slaves\n");

}



#ifdef CONFIG_ACPI_I2C_OPREGION

static int acpi_gsb_i2c_read_bytes(struct i2c_client *client,

		u8 cmd, u8 *data, u8 data_len)

{
@@ -360,3 +361,4 @@ void acpi_i2c_remove_space_handler(struct i2c_adapter *adapter) 


	acpi_bus_detach_private_data(handle);

}

#endif

CRA Git | Maintained and supported by SUSTech CRA and CCSE