diff options
| author | Mark Brown <broonie@kernel.org> | 2024-10-22 23:18:45 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2024-10-22 23:18:45 +0100 |
| commit | 5ddc236d094d496bcd1e78aaa88bdde530073b6f (patch) | |
| tree | 2435f76086b7bbf9739c05411baa2f1520cd9618 /drivers/xen/acpi.c | |
| parent | 0d214f27c0e3d9694284c95bac1502c2d247355b (diff) | |
| parent | 602ff58ae4fe4289b0ca71cba9fb82f7de92cd64 (diff) | |
regulator: init_data handling update
Merge series from Jerome Brunet <jbrunet@baylibre.com>:
This patchset groups the regulator patches around the init_data topic
discussed on pmbus write protect patchset [1]
[1]: https://lore.kernel.org/r/20240920-pmbus-wp-v1-0-d679ef31c483@baylibre.com
Diffstat (limited to 'drivers/xen/acpi.c')
| -rw-r--r-- | drivers/xen/acpi.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/drivers/xen/acpi.c b/drivers/xen/acpi.c index 9e2096524fbc..d2ee605c5ca1 100644 --- a/drivers/xen/acpi.c +++ b/drivers/xen/acpi.c @@ -125,3 +125,27 @@ int xen_acpi_get_gsi_info(struct pci_dev *dev, return 0; } EXPORT_SYMBOL_GPL(xen_acpi_get_gsi_info); + +static get_gsi_from_sbdf_t get_gsi_from_sbdf; +static DEFINE_RWLOCK(get_gsi_from_sbdf_lock); + +void xen_acpi_register_get_gsi_func(get_gsi_from_sbdf_t func) +{ + write_lock(&get_gsi_from_sbdf_lock); + get_gsi_from_sbdf = func; + write_unlock(&get_gsi_from_sbdf_lock); +} +EXPORT_SYMBOL_GPL(xen_acpi_register_get_gsi_func); + +int xen_acpi_get_gsi_from_sbdf(u32 sbdf) +{ + int ret = -EOPNOTSUPP; + + read_lock(&get_gsi_from_sbdf_lock); + if (get_gsi_from_sbdf) + ret = get_gsi_from_sbdf(sbdf); + read_unlock(&get_gsi_from_sbdf_lock); + + return ret; +} +EXPORT_SYMBOL_GPL(xen_acpi_get_gsi_from_sbdf); |