On Sat, Jul 31, 2021 at 7:44 AM Bin Meng bmeng.cn@gmail.com wrote:
On Sat, Jul 31, 2021 at 4:15 AM 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: Bin Meng bmeng.cn@gmail.com
applied to u-boot-x86, thanks!