Hi, With ACPI 5 we can now describe how devices are connected to their bus using new resources: SPISerialBus and I2CSerialBus. Also it is now possible to add GPIO connections for the devices with the help of GpioIO and GpioInt resources. This series adds support for these new resources. The series based on the ACPI 5 enumeration support patches that are available on Rafael's linux-next branch: git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git linux-next Specifically patches from this thread: https://lkml.org/lkml/2012/10/31/154 Since these patches depend on the above patches on Rafael's linux-next branch I suggest that these be merged via that branch, if there are no objections. The series follows the Device Tree way so that it would be easy to add ACPI support for the existing SPI and I2C drivers if one is familiar how the corresponding DT support is done. For GPIO we introduce a function that maps between ACPI GPIO numbers and Linux ones - acpi_get_gpio(). SPI slave devices gets enumerated automatically if the master device has master->dev.acpi_handle set (this is analogous to master->dev.of_mode). The platform bus code in Rafael's branch assigns the ACPI handle to the master device. I2C slave devices can be enumerated by calling acpi_i2c_register_devices() in the adapter driver. Thanks, Mika Mathias Nyman (1): gpio / ACPI: add ACPI support Mika Westerberg (2): spi / ACPI: add ACPI enumeration support i2c / ACPI: add ACPI enumeration support drivers/acpi/Kconfig | 6 ++ drivers/acpi/Makefile | 1 + drivers/acpi/acpi_i2c.c | 234 +++++++++++++++++++++++++++++++++++++++++++ drivers/gpio/Kconfig | 4 + drivers/gpio/Makefile | 1 + drivers/gpio/gpiolib-acpi.c | 60 +++++++++++ drivers/i2c/i2c-core.c | 9 ++ drivers/spi/spi.c | 231 +++++++++++++++++++++++++++++++++++++++++- include/linux/acpi_gpio.h | 19 ++++ include/linux/acpi_i2c.h | 29 ++++++ 10 files changed, 593 insertions(+), 1 deletion(-) create mode 100644 drivers/acpi/acpi_i2c.c create mode 100644 drivers/gpio/gpiolib-acpi.c create mode 100644 include/linux/acpi_gpio.h create mode 100644 include/linux/acpi_i2c.h -- 1.7.10.4 -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
