diff options
| -rw-r--r-- | drivers/pci/pwrctrl/core.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/drivers/pci/pwrctrl/core.c b/drivers/pci/pwrctrl/core.c index 8325858cc379..7754baed67f2 100644 --- a/drivers/pci/pwrctrl/core.c +++ b/drivers/pci/pwrctrl/core.c @@ -272,7 +272,8 @@ EXPORT_SYMBOL_GPL(pci_pwrctrl_power_on_devices); * Check whether the pwrctrl device really needs to be created or not. The * pwrctrl device will only be created if the node satisfies below requirements: * - * 1. Presence of compatible property to match against the pwrctrl driver (AND) + * 1. Presence of compatible property with "pci" prefix to match against the + * pwrctrl driver (AND) * 2. At least one of the power supplies defined in the devicetree node of the * device (OR) in the remote endpoint parent node to indicate pwrctrl * requirement. @@ -280,8 +281,14 @@ EXPORT_SYMBOL_GPL(pci_pwrctrl_power_on_devices); static bool pci_pwrctrl_is_required(struct device_node *np) { struct device_node *endpoint; + const char *compat; + int ret; + + ret = of_property_read_string(np, "compatible", &compat); + if (ret < 0) + return false; - if (!of_property_present(np, "compatible")) + if (!strstarts(compat, "pci")) return false; if (of_pci_supply_present(np)) |