To support runtime PM, use the function 'pci_set_power_state' to change
the power state. Therefore, method _PS0 or _PR0 needs to be filled by
platform. So check whether the method is supported, if not, print a
prompt information.
Signed-off-by: Weili Qian <qianweili@xxxxxxxxxx>
---
drivers/crypto/hisilicon/qm.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/crypto/hisilicon/qm.c b/drivers/crypto/hisilicon/qm.c
index e29ff97..369562d 100644
--- a/drivers/crypto/hisilicon/qm.c
+++ b/drivers/crypto/hisilicon/qm.c
@@ -3282,6 +3282,10 @@ static void hisi_qm_pre_init(struct hisi_qm *qm)
init_rwsem(&qm->qps_lock);
qm->qp_in_used = 0;
qm->misc_ctl = false;
+ if (qm->fun_type == QM_HW_PF && qm->ver > QM_HW_V2) {
+ if (!acpi_device_power_manageable(ACPI_COMPANION(&pdev->dev)))
+ dev_info(&pdev->dev, "_PS0 and _PR0 are not defined");
+ }
}
static void qm_cmd_uninit(struct hisi_qm *qm)
--
2.8.1
