[PATCH v3 1/2] ath10k: add the PCI PM core suspend/resume ops
From: <hidden>
Date: 2017-08-22 21:47:07
Subsystem:
atheros ath generic utilities, qualcomm atheros ath10k wireless driver, the rest · Maintainers:
Jeff Johnson, Linus Torvalds
From: Ryan Hsu <redacted>
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 <redacted>
---
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 0457e31..4aac0de 100644
--- a/drivers/net/wireless/ath/ath10k/pci.c
+++ b/drivers/net/wireless/ath/ath10k/pci.c@@ -3358,11 +3358,53 @@ 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; +} + +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)
--
1.9.1