Re: [PATCH v1 1/1] x86: tangier: Fix DMA controller IRQ polarity in CSRT

On Fri, 30 Jul 2021 at 14:15, Andy Shevchenko andriy.shevchenko@linux.intel.com wrote:

IRQ polarity in CSRT has the same definition as by ACPI specification chapter 19.6.64 "Interrupt (Interrupt Resource Descriptor Macro)", i.e. ActiveHigh is 0, and ActiveLow is 1. On Intel Tangier the DMA controller IRQ polarity is ActiveHigh.

Note, in DSDT (see southcluster.asl) it's described correctly.

Fixes: 5e99fde34a77 ("x86: tangier: Populate CSRT for shared DMA controller") Signed-off-by: Andy Shevchenko andriy.shevchenko@linux.intel.com

---

arch/x86/cpu/tangier/acpi.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)

Reviewed-by: Simon Glass sjg@chromium.org