From: Weili Qian <qianweili@huawei.com>
To: <herbert@gondor.apana.org.au>, <davem@davemloft.net>
Cc: <linux-kernel@vger.kernel.org>, <linux-crypto@vger.kernel.org>,
<wangzhou1@hisilicon.com>, <liulongfang@huawei.com>
Subject: [PATCH v2 5/5] crypto: hisilicon - check _PS0 and _PR0 method
Date: Fri, 13 Aug 2021 17:50:09 +0800 [thread overview]
Message-ID: <1628848209-26398-6-git-send-email-qianweili@huawei.com> (raw)
In-Reply-To: <1628848209-26398-1-git-send-email-qianweili@huawei.com>
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>
---
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
next prev parent reply other threads:[~2021-08-13 9:54 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-13 9:50 [PATCH v2 0/5] crypto: hisilicon - support runtime PM for accelerator devices Weili Qian
2021-08-13 9:50 ` [PATCH v2 1/5] crypto: hisilicon - using 'debugfs_create_file' instead of 'debugfs_create_regset32' Weili Qian
2021-08-13 9:50 ` [PATCH v2 2/5] crypto: hisilicon - add runtime PM ops Weili Qian
2021-08-13 9:50 ` [PATCH v2 3/5] crypto: hisilicon - support runtime PM for accelerator device Weili Qian
2021-08-13 9:50 ` [PATCH v2 4/5] crypto: hisilicon - change parameter passing of debugfs function Weili Qian
2021-08-13 9:50 ` Weili Qian [this message]
2021-08-21 7:50 ` [PATCH v2 0/5] crypto: hisilicon - support runtime PM for accelerator devices Herbert Xu
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