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pci: Add method to read PME capability

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Add a helper method to read the PME capability.
Will be used in the following commit.

Change-Id: Id1fdc98c9ce86d3ddf8056bb609afc58008cf2e9
Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/84793
Reviewed-by: Shuo Liu <shuo.liu@intel.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Subrata Banik <subratabanik@google.com>
This commit is contained in:
Patrick Rudolph 2024-10-17 09:22:49 +02:00 • committed by Lean Sheng Tan
commit 4a652eb926
2 changed files with 19 additions and 0 deletions
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src/include/device/pci.h
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@ -98,6 +98,7 @@ void pci_dev_set_subsystem(struct device *dev, unsigned int vendor,
void pci_dev_init(struct device *dev);
unsigned int pci_match_simple_dev(struct device *dev, pci_devfn_t sdev);
uint16_t pci_find_cap_recursive(const struct device *dev, uint16_t cap);
bool pci_has_pme_pin(const struct device *dev);
const char *pin_to_str(int pin);
int get_pci_irq_pins(struct device *dev, struct device **parent_bdg);