linux-stable/drivers/dma/dw
Hans de Goede 5658f4f94c dmaengine: dw: Add alternative ACPI HIDs for Cherry Trail DMA controllers
Bay and Cherry Trail DSTDs represent a different set of devices depending
on which OS the device think it is booting. One set of decices for Windows
and another set of devices for Android which targets the Android-x86 Linux
kernel fork (which e.g. used to have its own display driver instead of
using the i915 driver).

Which set of devices we are actually going to get is out of our control,
this is controlled by the ACPI OSID variable, which gets either set through
an EFI setup option, or sometimes is autodetected. So we need to support
both.

This commit adds support for the 80862286 and 808622C0 ACPI HIDs which we
get for the first resp. second DMA controller on Cherry Trail devices when
OSID is set to Android.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2018-08-29 21:54:56 +05:30
..
core.c dmaengine: dw: Remove AVR32 bits from the driver 2017-05-15 17:07:30 +02:00
internal.h dmaengine: dw: export probe()/remove() and Co to users 2014-10-15 20:31:05 +05:30
Kconfig dmaengine: dw: Remove AVR32 bits from the driver 2017-05-15 17:07:30 +02:00
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
pci.c dmaengine: dw: we do support Merrifield SoC in PCI mode 2017-01-25 11:51:40 +05:30
platform.c dmaengine: dw: Add alternative ACPI HIDs for Cherry Trail DMA controllers 2018-08-29 21:54:56 +05:30
regs.h dmaengine: dw: Remove AVR32 bits from the driver 2017-05-15 17:07:30 +02:00