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path: root/drivers/pnp/pnpacpi
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-rw-r--r--drivers/pnp/pnpacpi/core.c2
-rw-r--r--drivers/pnp/pnpacpi/rsparser.c91
2 files changed, 60 insertions, 33 deletions
diff --git a/drivers/pnp/pnpacpi/core.c b/drivers/pnp/pnpacpi/core.c
index dada8990631..662b4c279cf 100644
--- a/drivers/pnp/pnpacpi/core.c
+++ b/drivers/pnp/pnpacpi/core.c
@@ -183,7 +183,7 @@ static int __init pnpacpi_add_device(struct acpi_device *device)
if (ACPI_SUCCESS(status))
dev->capabilities |= PNP_CONFIGURABLE;
dev->capabilities |= PNP_READ;
- if (device->flags.dynamic_status)
+ if (device->flags.dynamic_status && (dev->capabilities & PNP_CONFIGURABLE))
dev->capabilities |= PNP_WRITE;
if (device->flags.removable)
dev->capabilities |= PNP_REMOVABLE;
diff --git a/drivers/pnp/pnpacpi/rsparser.c b/drivers/pnp/pnpacpi/rsparser.c
index cd0a204d96d..6aa231ef642 100644
--- a/drivers/pnp/pnpacpi/rsparser.c
+++ b/drivers/pnp/pnpacpi/rsparser.c
@@ -75,6 +75,8 @@ static void pnpacpi_parse_allocated_irqresource(struct pnp_resource_table *res,
{
int i = 0;
int irq;
+ int p, t;
+ static unsigned char warned;
if (!valid_IRQ(gsi))
return;
@@ -82,18 +84,28 @@ static void pnpacpi_parse_allocated_irqresource(struct pnp_resource_table *res,
while (!(res->irq_resource[i].flags & IORESOURCE_UNSET) &&
i < PNP_MAX_IRQ)
i++;
- if (i >= PNP_MAX_IRQ)
+ if (i >= PNP_MAX_IRQ && !warned) {
+ printk(KERN_ERR "pnpacpi: exceeded the max number of IRQ "
+ "resources: %d \n", PNP_MAX_IRQ);
+ warned = 1;
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
+ /*
+ * in IO-APIC mode, use overrided attribute. Two reasons:
+ * 1. BIOS bug in DSDT
+ * 2. BIOS uses IO-APIC mode Interrupt Source Override
+ */
+ if (!acpi_get_override_irq(gsi, &t, &p)) {
+ t = t ? ACPI_LEVEL_SENSITIVE : ACPI_EDGE_SENSITIVE;
+ p = p ? ACPI_ACTIVE_LOW : ACPI_ACTIVE_HIGH;
+
+ if (triggering != t || polarity != p) {
+ pnp_warn("IRQ %d override to %s, %s",
+ gsi, t ? "edge":"level", p ? "low":"high");
+ triggering = t;
+ polarity = p;
+ }
+ }
res->irq_resource[i].flags = IORESOURCE_IRQ; // Also clears _UNSET flag
res->irq_resource[i].flags |= irq_flags(triggering, polarity);
@@ -159,6 +171,7 @@ static void pnpacpi_parse_allocated_dmaresource(struct pnp_resource_table *res,
int bus_master, int transfer)
{
int i = 0;
+ static unsigned char warned;
while (i < PNP_MAX_DMA &&
!(res->dma_resource[i].flags & IORESOURCE_UNSET))
@@ -173,6 +186,10 @@ static void pnpacpi_parse_allocated_dmaresource(struct pnp_resource_table *res,
}
res->dma_resource[i].start = dma;
res->dma_resource[i].end = dma;
+ } else if (!warned) {
+ printk(KERN_ERR "pnpacpi: exceeded the max number of DMA "
+ "resources: %d \n", PNP_MAX_DMA);
+ warned = 1;
}
}
@@ -180,6 +197,7 @@ static void pnpacpi_parse_allocated_ioresource(struct pnp_resource_table *res,
u64 io, u64 len, int io_decode)
{
int i = 0;
+ static unsigned char warned;
while (!(res->port_resource[i].flags & IORESOURCE_UNSET) &&
i < PNP_MAX_PORT)
@@ -194,6 +212,10 @@ static void pnpacpi_parse_allocated_ioresource(struct pnp_resource_table *res,
}
res->port_resource[i].start = io;
res->port_resource[i].end = io + len - 1;
+ } else if (!warned) {
+ printk(KERN_ERR "pnpacpi: exceeded the max number of IO "
+ "resources: %d \n", PNP_MAX_PORT);
+ warned = 1;
}
}
@@ -202,6 +224,7 @@ static void pnpacpi_parse_allocated_memresource(struct pnp_resource_table *res,
int write_protect)
{
int i = 0;
+ static unsigned char warned;
while (!(res->mem_resource[i].flags & IORESOURCE_UNSET) &&
(i < PNP_MAX_MEM))
@@ -217,6 +240,10 @@ static void pnpacpi_parse_allocated_memresource(struct pnp_resource_table *res,
res->mem_resource[i].start = mem;
res->mem_resource[i].end = mem + len - 1;
+ } else if (!warned) {
+ printk(KERN_ERR "pnpacpi: exceeded the max number of mem "
+ "resources: %d\n", PNP_MAX_MEM);
+ warned = 1;
}
}
@@ -364,8 +391,8 @@ acpi_status pnpacpi_parse_allocated_resource(acpi_handle handle,
pnpacpi_allocated_resource, res);
}
-static void pnpacpi_parse_dma_option(struct pnp_option *option,
- struct acpi_resource_dma *p)
+static __init void pnpacpi_parse_dma_option(struct pnp_option *option,
+ struct acpi_resource_dma *p)
{
int i;
struct pnp_dma *dma;
@@ -384,8 +411,8 @@ static void pnpacpi_parse_dma_option(struct pnp_option *option,
pnp_register_dma_resource(option, dma);
}
-static void pnpacpi_parse_irq_option(struct pnp_option *option,
- struct acpi_resource_irq *p)
+static __init void pnpacpi_parse_irq_option(struct pnp_option *option,
+ struct acpi_resource_irq *p)
{
int i;
struct pnp_irq *irq;
@@ -404,8 +431,8 @@ static void pnpacpi_parse_irq_option(struct pnp_option *option,
pnp_register_irq_resource(option, irq);
}
-static void pnpacpi_parse_ext_irq_option(struct pnp_option *option,
- struct acpi_resource_extended_irq *p)
+static __init void pnpacpi_parse_ext_irq_option(struct pnp_option *option,
+ struct acpi_resource_extended_irq *p)
{
int i;
struct pnp_irq *irq;
@@ -424,8 +451,8 @@ static void pnpacpi_parse_ext_irq_option(struct pnp_option *option,
pnp_register_irq_resource(option, irq);
}
-static void pnpacpi_parse_port_option(struct pnp_option *option,
- struct acpi_resource_io *io)
+static __init void pnpacpi_parse_port_option(struct pnp_option *option,
+ struct acpi_resource_io *io)
{
struct pnp_port *port;
@@ -443,8 +470,8 @@ static void pnpacpi_parse_port_option(struct pnp_option *option,
pnp_register_port_resource(option, port);
}
-static void pnpacpi_parse_fixed_port_option(struct pnp_option *option,
- struct acpi_resource_fixed_io *io)
+static __init void pnpacpi_parse_fixed_port_option(struct pnp_option *option,
+ struct acpi_resource_fixed_io *io)
{
struct pnp_port *port;
@@ -460,8 +487,8 @@ static void pnpacpi_parse_fixed_port_option(struct pnp_option *option,
pnp_register_port_resource(option, port);
}
-static void pnpacpi_parse_mem24_option(struct pnp_option *option,
- struct acpi_resource_memory24 *p)
+static __init void pnpacpi_parse_mem24_option(struct pnp_option *option,
+ struct acpi_resource_memory24 *p)
{
struct pnp_mem *mem;
@@ -481,8 +508,8 @@ static void pnpacpi_parse_mem24_option(struct pnp_option *option,
pnp_register_mem_resource(option, mem);
}
-static void pnpacpi_parse_mem32_option(struct pnp_option *option,
- struct acpi_resource_memory32 *p)
+static __init void pnpacpi_parse_mem32_option(struct pnp_option *option,
+ struct acpi_resource_memory32 *p)
{
struct pnp_mem *mem;
@@ -502,8 +529,8 @@ static void pnpacpi_parse_mem32_option(struct pnp_option *option,
pnp_register_mem_resource(option, mem);
}
-static void pnpacpi_parse_fixed_mem32_option(struct pnp_option *option,
- struct acpi_resource_fixed_memory32 *p)
+static __init void pnpacpi_parse_fixed_mem32_option(struct pnp_option *option,
+ struct acpi_resource_fixed_memory32 *p)
{
struct pnp_mem *mem;
@@ -522,8 +549,8 @@ static void pnpacpi_parse_fixed_mem32_option(struct pnp_option *option,
pnp_register_mem_resource(option, mem);
}
-static void pnpacpi_parse_address_option(struct pnp_option *option,
- struct acpi_resource *r)
+static __init void pnpacpi_parse_address_option(struct pnp_option *option,
+ struct acpi_resource *r)
{
struct acpi_resource_address64 addr, *p = &addr;
acpi_status status;
@@ -569,8 +596,8 @@ struct acpipnp_parse_option_s {
struct pnp_dev *dev;
};
-static acpi_status pnpacpi_option_resource(struct acpi_resource *res,
- void *data)
+static __init acpi_status pnpacpi_option_resource(struct acpi_resource *res,
+ void *data)
{
int priority = 0;
struct acpipnp_parse_option_s *parse_data = data;
@@ -669,8 +696,8 @@ static acpi_status pnpacpi_option_resource(struct acpi_resource *res,
return AE_OK;
}
-acpi_status pnpacpi_parse_resource_option_data(acpi_handle handle,
- struct pnp_dev * dev)
+acpi_status __init pnpacpi_parse_resource_option_data(acpi_handle handle,
+ struct pnp_dev *dev)
{
acpi_status status;
struct acpipnp_parse_option_s parse_data;
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-15 09:14:29 +0000