commit 77406e535002ead368bef8f618ae36491fec9388
author Andy Shevchenko <andriy.shevchenko@linux.intel.com> Tue Feb 26 13:43:14 2019 +0200
committer Bin Meng <bmeng.cn@gmail.com> Sun Mar 10 08:17:00 2019 +0800
tree 1757a3637da84883735aaaa6ceb0c254ca25935f
parent bbdbf033461c4306949a088bf39f77af771ac9e6

x86: acpi: Add DMA descriptors for SPI5 on Intel Tangier

Intel Tangier SoC has a general purpose DMA which can serve to speed up
communications on SPI and I2C serial buses.

Provide DMA descriptors to utilize this capability in the future.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>

arch/x86/include/asm/arch-tangier/acpi/southcluster.asl

diff --git a/arch/x86/include/asm/arch-tangier/acpi/southcluster.asl b/arch/x86/include/asm/arch-tangier/acpi/southcluster.asl
index baad98b..8cb6f64 100644
--- a/arch/x86/include/asm/arch-tangier/acpi/southcluster.asl
+++ b/arch/x86/include/asm/arch-tangier/acpi/southcluster.asl
@@ -179,6 +179,9 @@
                 "\\_SB.PCI0.GPIO", 0, ResourceConsumer, , ) { 112 }
             GpioIo(Exclusive, PullUp, 0, 0, IoRestrictionOutputOnly,
                 "\\_SB.PCI0.GPIO", 0, ResourceConsumer, , ) { 113 }
+
+            FixedDMA(0x000d, 0x0002, Width32bit, )
+            FixedDMA(0x000c, 0x0003, Width32bit, )
         })
 
         Method (_CRS, 0, NotSerialized)