[alsa-devel] [PATCHv3 0/3] I2C and SPI dev_name change for ACPI enumerated slaves

Jarkko Nikula jarkko.nikula at linux.intel.com
Thu Nov 14 10:00:58 CET 2013


Third version of the set that changes I2C and SPI slave device names
to be generated from stable ACPI device names on ACPI 5 based systems
instead of using bus numbers which could change.

Slave device name change goes as

	"x-00yz" -> "i2c-INTABCD:ij"
	"spix.y" -> "spi-INTABCD:ij"

This version is actually a bit cleaner thanks to Rafael's
"ACPI / driver core: Store an ACPI device pointer in struct acpi_dev_node"
in git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Set goes on top of linux-pm/linux-next due dependency to 1/3. As we are now
in merge-window I'm fine if 1/3 goes in first and I queue 2-3/3 later
to i2c and spi trees.

Jarkko Nikula (3):
  ACPI: Provide struct acpi_device stub for !CONFIG_ACPI builds
  i2c: Use stable dev_name for ACPI enumerated I2C slaves
  spi: Use stable dev_name for ACPI enumerated SPI slaves

 drivers/i2c/i2c-core.c | 21 +++++++++++++++++----
 drivers/spi/spi.c      | 17 ++++++++++++++---
 include/linux/acpi.h   |  4 ++++
 3 files changed, 35 insertions(+), 7 deletions(-)


More information about the Alsa-devel mailing list