Thread (16 messages) 16 messages, 4 authors, 2020-08-25
STALE2129d

[Linux-kernel-mentees] [PATCH v2 1/2] i2c: eg20t: Drop PCI wakeup calls from .suspend/.resume

From: Vaibhav Gupta <vaibhavgupta40@gmail.com>
Date: 2020-08-05 19:45:24
Also in: linux-i2c, lkml
Subsystem: i2c subsystem, i2c subsystem host drivers, the rest · Maintainers: Andi Shyti, Linus Torvalds

The driver calls pci_enable_wake(...., false) in pch_i2c_suspend() as well
as pch_i2c_resume(). Either it should enable-wake the device in .suspend()
or should not invoke pci_enable_wake() at all.

Concluding that this driver doesn't support enable-wake and PCI core calls
pci_enable_wake(pci_dev, PCI_D0, false) during resume, drop it from
.suspend() and .resume().

Reported-by: Bjorn Helgaas <helgaas@kernel.org>
Signed-off-by: Vaibhav Gupta <vaibhavgupta40@gmail.com>
---
 drivers/i2c/busses/i2c-eg20t.c | 3 ---
 1 file changed, 3 deletions(-)
diff --git a/drivers/i2c/busses/i2c-eg20t.c b/drivers/i2c/busses/i2c-eg20t.c
index 73f139690e4e..eb41de22d461 100644
--- a/drivers/i2c/busses/i2c-eg20t.c
+++ b/drivers/i2c/busses/i2c-eg20t.c
@@ -879,7 +879,6 @@ static int pch_i2c_suspend(struct pci_dev *pdev, pm_message_t state)
 		return ret;
 	}
 
-	pci_enable_wake(pdev, PCI_D3hot, 0);
 	pci_disable_device(pdev);
 	pci_set_power_state(pdev, pci_choose_state(pdev, state));
 
@@ -899,8 +898,6 @@ static int pch_i2c_resume(struct pci_dev *pdev)
 		return -EIO;
 	}
 
-	pci_enable_wake(pdev, PCI_D3hot, 0);
-
 	for (i = 0; i < adap_info->ch_num; i++)
 		pch_i2c_init(&adap_info->pch_data[i]);
 
-- 
2.27.0

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