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>

diff --git a/arch/x86/include/asm/arch-tangier/acpi/southcluster.asl b/arch/x86/include/asm/arch-tangier/acpi/southcluster.asl
index baad98b1c7ef50f722f03aaa1b5b7e940a8d8e2b..8cb6f64b3dde1d51fc293f27da7c6b823ef78c6a 100644 (file)
--- a/arch/x86/include/asm/arch-tangier/acpi/southcluster.asl
+++ b/arch/x86/include/asm/arch-tangier/acpi/southcluster.asl
@@ -179,6 +179,9 @@ Device (PCI0)
                 "\\_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)