The patch titled
Fix very high interrupt rate for IRQ8 (rtc) unless pnpacpi=off
has been removed from the -mm tree. Its filename was
fix-very-high-interrupt-rate-for-irq8-rtc-unless-pnpacpi=off.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
Subject: Fix very high interrupt rate for IRQ8 (rtc) unless pnpacpi=off
From: Krzysztof Oledzki <olel@xxxxxx>
Workaround for broken systems with BIOS that makes RTC interrupt level
triggered and/or active low.
See http://bugzilla.kernel.org/show_bug.cgi?id=5243
Based on the patch from Shaohua Li <shaohua.li@xxxxxxxxx>
Signed-off-by: Krzysztof Piotr Oledzki <ole@xxxxxx>
Cc: "Li, Shaohua" <shaohua.li@xxxxxxxxx>
Cc: Bjorn Helgaas <bjorn.helgaas@xxxxxx>
Cc: Andi Kleen <ak@xxxxxxx>
Cc: Adam Belay <ambx1@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/pnp/pnpacpi/rsparser.c | 10 ++++++++++
1 file changed, 10 insertions(+)
diff -puN drivers/pnp/pnpacpi/rsparser.c~fix-very-high-interrupt-rate-for-irq8-rtc-unless-pnpacpi=off drivers/pnp/pnpacpi/rsparser.c
--- a/drivers/pnp/pnpacpi/rsparser.c~fix-very-high-interrupt-rate-for-irq8-rtc-unless-pnpacpi=off
+++ a/drivers/pnp/pnpacpi/rsparser.c
@@ -85,6 +85,16 @@ static void pnpacpi_parse_allocated_irqr
if (i >= PNP_MAX_IRQ)
return;
+#ifdef CONFIG_X86
+ if (gsi < 16 && (triggering != ACPI_EDGE_SENSITIVE ||
+ polarity != ACPI_ACTIVE_HIGH)) {
+ pnp_warn("BIOS BUG: legacy PNP IRQ %d should be edge trigger, "
+ "active high", gsi);
+ triggering = ACPI_EDGE_SENSITIVE;
+ polarity = ACPI_ACTIVE_HIGH;
+ }
+#endif
+
res->irq_resource[i].flags = IORESOURCE_IRQ; // Also clears _UNSET flag
res->irq_resource[i].flags |= irq_flags(triggering, polarity);
irq = acpi_register_gsi(gsi, triggering, polarity);
_
Patches currently in -mm which might be from olel@xxxxxx are
origin.patch
-
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