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| author | Bjorn Helgaas <bjorn.helgaas@hp.com> | 2010-03-05 10:47:57 -0700 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2010-03-14 20:08:38 -0400 |
| commit | 7e0e9c042790d4ea44c6a00ddaad8b8bbcc3f17f (patch) | |
| tree | b0caf1f008ae1f2f2f32bfecfaba7c8ba9986c6f /drivers/pnp/pnpacpi/rsparser.c | |
| parent | fa35b49260b615d634bfa1f767aa315fa323c2e9 (diff) | |
| download | lwn-7e0e9c042790d4ea44c6a00ddaad8b8bbcc3f17f.tar.gz lwn-7e0e9c042790d4ea44c6a00ddaad8b8bbcc3f17f.zip | |
PNPACPI: add bus number support
Add support for bus number resources. This is for bridges with a range of
bus numbers behind them. Previously, PNP ignored bus number resources.
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/pnp/pnpacpi/rsparser.c')
| -rw-r--r-- | drivers/pnp/pnpacpi/rsparser.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/pnp/pnpacpi/rsparser.c b/drivers/pnp/pnpacpi/rsparser.c index 0d7d61da63fc..54514aa35b09 100644 --- a/drivers/pnp/pnpacpi/rsparser.c +++ b/drivers/pnp/pnpacpi/rsparser.c @@ -265,6 +265,14 @@ static void pnpacpi_parse_allocated_memresource(struct pnp_dev *dev, pnp_add_mem_resource(dev, start, end, flags); } +static void pnpacpi_parse_allocated_busresource(struct pnp_dev *dev, + u64 start, u64 len) +{ + u64 end = start + len - 1; + + pnp_add_bus_resource(dev, start, end); +} + static void pnpacpi_parse_allocated_address_space(struct pnp_dev *dev, struct acpi_resource *res) { @@ -290,6 +298,9 @@ static void pnpacpi_parse_allocated_address_space(struct pnp_dev *dev, p->minimum, p->address_length, p->granularity == 0xfff ? ACPI_DECODE_10 : ACPI_DECODE_16, window); + else if (p->resource_type == ACPI_BUS_NUMBER_RANGE) + pnpacpi_parse_allocated_busresource(dev, p->minimum, + p->address_length); } static void pnpacpi_parse_allocated_ext_address_space(struct pnp_dev *dev, @@ -309,6 +320,9 @@ static void pnpacpi_parse_allocated_ext_address_space(struct pnp_dev *dev, p->minimum, p->address_length, p->granularity == 0xfff ? ACPI_DECODE_10 : ACPI_DECODE_16, window); + else if (p->resource_type == ACPI_BUS_NUMBER_RANGE) + pnpacpi_parse_allocated_busresource(dev, p->minimum, + p->address_length); } static acpi_status pnpacpi_allocated_resource(struct acpi_resource *res, |