From 32faa3f0ee509176aeac0009e3ee93f9b15f07a5 Mon Sep 17 00:00:00 2001
From: Ryan Hsu <ryanhsu@qti.qualcomm.com>
Date: Thu, 31 Aug 2017 15:36:14 +0300
Subject: [PATCH] ath10k: add the PCI PM core suspend/resume ops
Git-commit: 32faa3f0ee509176aeac0009e3ee93f9b15f07a5
Patch-mainline: v4.14-rc1
References: FATE#326906
The actual PCI suspend/resume in ath10k has been handled in wow.c,
but in the case of the device doesn't support remote wakeup,
the .hif_suspend() and .hif_resume() will never be handled.
ath10k_wow_op_suspend()
{
if (WARN_ON(!test_bit(ATH10K_FW_FEATURE_WOWLAN_SUPPORT,
ar->running_fw->fw_file.fw_features))) {
ret = 1;
goto exit;
}
....
ret = ath10k_hif_suspend(ar);
}
So register the PCI PM core to support the suspend/resume if the device
doesn't support remote wakeup.
Signed-off-by: Ryan Hsu <ryanhsu@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/net/wireless/ath/ath10k/pci.c | 42 +++++++++++++++++++++++++++
1 file changed, 42 insertions(+)
diff --git a/drivers/net/wireless/ath/ath10k/pci.c b/drivers/net/wireless/ath/ath10k/pci.c
index 0a5b88e80214..bc1633945a56 100644
--- a/drivers/net/wireless/ath/ath10k/pci.c
+++ b/drivers/net/wireless/ath/ath10k/pci.c
@@ -3396,11 +3396,53 @@ static void ath10k_pci_remove(struct pci_dev *pdev)
MODULE_DEVICE_TABLE(pci, ath10k_pci_id_table);
+#ifdef CONFIG_PM
+
+static int ath10k_pci_pm_suspend(struct device *dev)
+{
+ struct ath10k *ar = dev_get_drvdata(dev);
+ int ret;
+
+ if (test_bit(ATH10K_FW_FEATURE_WOWLAN_SUPPORT,
+ ar->running_fw->fw_file.fw_features))
+ return 0;
+
+ ret = ath10k_hif_suspend(ar);
+ if (ret)
+ ath10k_warn(ar, "failed to suspend hif: %d\n", ret);
+
+ return ret;
+}
+
+static int ath10k_pci_pm_resume(struct device *dev)
+{
+ struct ath10k *ar = dev_get_drvdata(dev);
+ int ret;
+
+ if (test_bit(ATH10K_FW_FEATURE_WOWLAN_SUPPORT,
+ ar->running_fw->fw_file.fw_features))
+ return 0;
+
+ ret = ath10k_hif_resume(ar);
+ if (ret)
+ ath10k_warn(ar, "failed to resume hif: %d\n", ret);
+
+ return ret;
+}
+
+static SIMPLE_DEV_PM_OPS(ath10k_pci_pm_ops,
+ ath10k_pci_pm_suspend,
+ ath10k_pci_pm_resume);
+#endif
+
static struct pci_driver ath10k_pci_driver = {
.name = "ath10k_pci",
.id_table = ath10k_pci_id_table,
.probe = ath10k_pci_probe,
.remove = ath10k_pci_remove,
+#ifdef CONFIG_PM
+ .driver.pm = &ath10k_pci_pm_ops,
+#endif
};
static int __init ath10k_pci_init(void)
--
2.19.2