[PATCH] x86-64: i386/x86-64: Fix time going twice as fast problem on ATI Xpress chipsets

[firefly-linux-kernel-4.4.55.git] / arch / i386 / kernel / acpi / earlyquirk.c

diff --git a/arch/i386/kernel/acpi/earlyquirk.c b/arch/i386/kernel/acpi/earlyquirk.c
index f1b9d2a46dab860c0cbf100e1bf6b9b0b220c024..087ecc67e9b358e265e79ee450995e1ed73b6c46 100644 (file)
--- a/arch/i386/kernel/acpi/earlyquirk.c
+++ b/arch/i386/kernel/acpi/earlyquirk.c
@@ -15,6 +15,13 @@ static int __init check_bridge(int vendor, int device)
        if (vendor == PCI_VENDOR_ID_NVIDIA) {
                acpi_skip_timer_override = 1;
        }
+       /*
+        * ATI IXP chipsets get double timer interrupts.
+        * For now just do this for all ATI chipsets.
+        * FIXME: this needs to be checked for the non ACPI case too.
+        */
+       if (vendor == PCI_VENDOR_ID_ATI)
+               disable_timer_pin_1 = 1;
        return 0;
 }