From: Weili Qian <qianweili@huawei.com> mainline inclusion from mainline-master commit 3e1d2c52b2045ba7f90966b02daeb6c438432570 category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/I475PF?from=project-issue CVE: NA Reference: https://git.kernel.org/pub/scm/linux/kernel/git/herbert/cryptodev-2.6.git/co... ---------------------------------------------------------------------- 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> Reviewed-by: Hao Fang <fanghao11@huawei.com> Reviewed-by: Mingqiang Ling <lingmingqiang@huawei.com> Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com> --- 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 e29ff971ad79..369562d34d66 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) -- 2.20.1