]> git.proxmox.com Git - mirror_ubuntu-kernels.git/commit
ata: ahci_platform: Add ACPI _CLS matching
authorSuthikulpanit, Suravee <Suravee.Suthikulpanit@amd.com>
Mon, 6 Jul 2015 23:55:21 +0000 (01:55 +0200)
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>
Mon, 6 Jul 2015 23:55:21 +0000 (01:55 +0200)
commit2051e9248688e4c36e4de2e93b88fa0d74e86261
treea7d9ad9d78c39e151bd7dc524a680687ac6f381d
parent26095a01d359827eeccec5459c28ddd976183179
ata: ahci_platform: Add ACPI _CLS matching

This patch adds ACPI supports for AHCI platform driver, which uses _CLS
method to match the device.

The following is an example of ASL structure in DSDT for a SATA controller,
which contains _CLS package to be matched by the ahci_platform driver:

  Device (AHC0) // AHCI Controller
  {
    Name(_HID, "AMDI0600")
    Name (_CCA, 1)
    Name (_CLS, Package (3)
    {
      0x01, // Base Class: Mass Storage
      0x06, // Sub-Class: serial ATA
      0x01, // Interface: AHCI
    })
    Name (_CRS, ResourceTemplate ()
    {
      Memory32Fixed (ReadWrite, 0xE0300000, 0x00010000)
      Interrupt (ResourceConsumer, Level, ActiveHigh, Exclusive,,,) { 387 }
    })
  }

Also, since ATA driver should not require PCI support for ATA_ACPI,
this patch removes dependency in the driver/ata/Kconfig.

Acked-by: Tejun Heo <tj@kernel.org>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
drivers/ata/Kconfig
drivers/ata/ahci_platform.c