The patch titled
pnpacpi: fix shareable IRQ encode/decode
has been added to the -mm tree. Its filename is
pnpacpi-fix-shareable-irq-encode-decode.patch
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Subject: pnpacpi: fix shareable IRQ encode/decode
From: Bjorn Helgaas <bjorn.helgaas@xxxxxx>
When we encode IRQ resources, we should use the "shareable" flag we got
from _PRS rather than guessing based on the IRQ trigger mode.
This is based on a patch by Tom Jaeger:
http://bugzilla.kernel.org/show_bug.cgi?id=9487#c32
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@xxxxxx>
Cc: Tom Jaeger <ThJaeger@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/pnp/pnpacpi/rsparser.c | 27 +++++++++++++--------------
1 file changed, 13 insertions(+), 14 deletions(-)
diff -puN drivers/pnp/pnpacpi/rsparser.c~pnpacpi-fix-shareable-irq-encode-decode drivers/pnp/pnpacpi/rsparser.c
--- a/drivers/pnp/pnpacpi/rsparser.c~pnpacpi-fix-shareable-irq-encode-decode
+++ a/drivers/pnp/pnpacpi/rsparser.c
@@ -50,14 +50,14 @@ static int irq_flags(int triggering, int
flags = IORESOURCE_IRQ_HIGHEDGE;
}
- if (shareable)
+ if (shareable == ACPI_SHARED)
flags |= IORESOURCE_IRQ_SHAREABLE;
return flags;
}
static void decode_irq_flags(struct pnp_dev *dev, int flags, int *triggering,
- int *polarity)
+ int *polarity, int *shareable)
{
switch (flags & (IORESOURCE_IRQ_LOWLEVEL | IORESOURCE_IRQ_HIGHLEVEL |
IORESOURCE_IRQ_LOWEDGE | IORESOURCE_IRQ_HIGHEDGE)) {
@@ -84,6 +84,11 @@ static void decode_irq_flags(struct pnp_
*polarity = ACPI_ACTIVE_HIGH;
break;
}
+
+ if (flags & IORESOURCE_IRQ_SHAREABLE)
+ *shareable = ACPI_SHARED;
+ else
+ *shareable = ACPI_EXCLUSIVE;
}
static void pnpacpi_parse_allocated_irqresource(struct pnp_dev *dev,
@@ -796,15 +801,12 @@ static void pnpacpi_encode_irq(struct pn
struct resource *p)
{
struct acpi_resource_irq *irq = &resource->data.irq;
- int triggering, polarity;
+ int triggering, polarity, shareable;
- decode_irq_flags(dev, p->flags, &triggering, &polarity);
+ decode_irq_flags(dev, p->flags, &triggering, &polarity, &shareable);
irq->triggering = triggering;
irq->polarity = polarity;
- if (triggering == ACPI_EDGE_SENSITIVE)
- irq->sharable = ACPI_EXCLUSIVE;
- else
- irq->sharable = ACPI_SHARED;
+ irq->sharable = shareable;
irq->interrupt_count = 1;
irq->interrupts[0] = p->start;
@@ -819,16 +821,13 @@ static void pnpacpi_encode_ext_irq(struc
struct resource *p)
{
struct acpi_resource_extended_irq *extended_irq = &resource->data.extended_irq;
- int triggering, polarity;
+ int triggering, polarity, shareable;
- decode_irq_flags(dev, p->flags, &triggering, &polarity);
+ decode_irq_flags(dev, p->flags, &triggering, &polarity, &shareable);
extended_irq->producer_consumer = ACPI_CONSUMER;
extended_irq->triggering = triggering;
extended_irq->polarity = polarity;
- if (triggering == ACPI_EDGE_SENSITIVE)
- extended_irq->sharable = ACPI_EXCLUSIVE;
- else
- extended_irq->sharable = ACPI_SHARED;
+ extended_irq->sharable = shareable;
extended_irq->interrupt_count = 1;
extended_irq->interrupts[0] = p->start;
_
Patches currently in -mm which might be from bjorn.helgaas@xxxxxx are
acpi_pm_device_sleep_state-cleanup.patch
acpi-fix-drivers-acpi-gluec-build-error.patch
mm-only-enforce-acpi-resource-conflict-checks.patch
3c515-fix-using-pnp_get_resource-when-config_isapnp=n.patch
pnpacpi-fix-irq-flag-decoding.patch
pnpacpi-fix-shareable-irq-encode-decode.patch
pnp-add-detail-to-debug-resource-dump.patch
pnp-remove-pnp_resourceindex.patch
pnp-add-pnp_resource_type-internal-interface.patch
pnp-add-pnp_resource_type_name-helper-function.patch
pnp-make-pnp_portmemetc_start-et-al-work-for-invalid-resources.patch
pnp-replace-pnp_resource_table-with-dynamically-allocated-resources.patch
pnp-remove-ratelimit-on-add-resource-failures.patch
pnp-dont-sort-by-type-in-sys-resources.patch
make-pnp_add_card_id-static.patch
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