author: Andy Shevchenko <andriy.shevchenko@linux.intel.com> 2021-07-30 23:27:15 +0300
committer: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 2021-09-26 14:10:16 +0200
commit: b005ce62b39c8e14a41cfe96325bbe248ad5dce3
parent: e0291e6fb03d20f7852e70c063f959fd46f4d0ad
Commit Summary:
Diffstat:
1 file changed, 6 insertions, 3 deletions
diff --git a/drivers/dma/acpi-dma.c b/drivers/dma/acpi-dma.c
index 235f1396f968..52768dc8ce12 100644
--- a/drivers/dma/acpi-dma.c
+++ b/drivers/dma/acpi-dma.c
@@ -70,10 +70,14 @@ static int acpi_dma_parse_resource_group(const struct acpi_csrt_group *grp,
si = (const struct acpi_csrt_shared_info *)&grp[1];
- /* Match device by MMIO and IRQ */
+ /* Match device by MMIO */
if (si->mmio_base_low != lower_32_bits(mem) ||
- si->mmio_base_high != upper_32_bits(mem) ||
- si->gsi_interrupt != irq)
+ si->mmio_base_high != upper_32_bits(mem))
+ return 0;
+
+ /* Match device by Linux vIRQ */
+ ret = acpi_register_gsi(NULL, si->gsi_interrupt, si->interrupt_mode, si->interrupt_polarity);
+ if (ret != irq)
return 0;
dev_dbg(&adev->dev, "matches with %.4s%04X (rev %u)\n",