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crypto: hisilicon - check _PS0 and _PR0 method 

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@huawei.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Weili Qian 2021-08-13 17:50:09 +08:00 committed by Herbert Xu
parent 74f5edbffc
commit 3e1d2c52b2
1 changed files with 4 additions and 0 deletions
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4
drivers/crypto/hisilicon/qm.c
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@ -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)