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authorJiri Kosina <jkosina@suse.cz>2020-08-10 11:21:59 +0200
committerJiri Kosina <jkosina@suse.cz>2020-08-10 11:21:59 +0200
commitcd6cad553bab964241b4e1e50e33a4df45b23943 (patch)
treeef5ec38cce8e64990f354dd3df9eee09c7882909 /drivers/hid
parenta66eebd702616850b8b48e72ed4391a2dc0caccc (diff)
parent7e341061ddd9239f7214fc3abb794f0ed977e259 (diff)
Merge branch 'for-5.9/intel-ish' into for-linus
Diffstat (limited to 'drivers/hid')
-rw-r--r--drivers/hid/intel-ish-hid/ipc/pci-ish.c16
1 files changed, 11 insertions, 5 deletions
diff --git a/drivers/hid/intel-ish-hid/ipc/pci-ish.c b/drivers/hid/intel-ish-hid/ipc/pci-ish.c
index f491d8b4e24c..c6d48a8648b7 100644
--- a/drivers/hid/intel-ish-hid/ipc/pci-ish.c
+++ b/drivers/hid/intel-ish-hid/ipc/pci-ish.c
@@ -106,6 +106,11 @@ static inline bool ish_should_enter_d0i3(struct pci_dev *pdev)
return !pm_suspend_via_firmware() || pdev->device == CHV_DEVICE_ID;
}
+static inline bool ish_should_leave_d0i3(struct pci_dev *pdev)
+{
+ return !pm_resume_via_firmware() || pdev->device == CHV_DEVICE_ID;
+}
+
/**
* ish_probe() - PCI driver probe callback
* @pdev: pci device
@@ -215,9 +220,7 @@ static void __maybe_unused ish_resume_handler(struct work_struct *work)
struct ishtp_device *dev = pci_get_drvdata(pdev);
int ret;
- /* Check the NO_D3 flag to distinguish the resume paths */
- if (pdev->dev_flags & PCI_DEV_FLAGS_NO_D3) {
- pdev->dev_flags &= ~PCI_DEV_FLAGS_NO_D3;
+ if (ish_should_leave_d0i3(pdev) && !dev->suspend_flag) {
disable_irq_wake(pdev->irq);
ishtp_send_resume(dev);
@@ -281,8 +284,11 @@ static int __maybe_unused ish_suspend(struct device *device)
*/
ish_disable_dma(dev);
} else {
- /* Set the NO_D3 flag, the ISH would enter D0i3 */
- pdev->dev_flags |= PCI_DEV_FLAGS_NO_D3;
+ /*
+ * Save state so PCI core will keep the device at D0,
+ * the ISH would enter D0i3
+ */
+ pci_save_state(pdev);
enable_irq_wake(pdev->irq);
}