On Thu, Oct 22, 2015 at 02:17:42AM -0700, Dustin Byford wrote: > Although I2C mux devices are easily enumerated using ACPI (_HID/_CID or > device property compatible string match), enumerating I2C client devices > connected through an I2C mux needs a little extra work. > > This change implements a method for describing an I2C device hierarchy that > includes mux devices by using an ACPI Device() for each mux channel along > with an _ADR to set the channel number for the device. See > Documentation/acpi/i2c-muxes.txt for a simple example. > > To make this work the ismt, i801, and designware pci/platform devs now > share an ACPI companion with their I2C adapter dev similar to how it's done > in OF. This is done on the assumption that power management functions will > not be called directly on the I2C dev that is sharing the ACPI node. > > Signed-off-by: Dustin Byford <dustin@xxxxxxxxxxxxxxxxxxx> This looks good to me. You did also some stylistic changes to the drivers in question which I think should be placed to a separate patches. Regardless of that, Acked-by: Mika Westerberg <mika.westerberg@xxxxxxxxxxxxxxx> I'll leave this up to Rafael and Wolfram to decide how to go forward with this patch. -- To unsubscribe from this list: send the line "unsubscribe linux-i2c" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
