2020-08-05 19:45:54

by Vaibhav Gupta

[permalink] [raw]
Subject: [PATCH v2 1/2] i2c: eg20t: Drop PCI wakeup calls from .suspend/.resume

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 <[email protected]>
Signed-off-by: Vaibhav Gupta <[email protected]>
---
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


2020-08-10 14:05:07

by Wolfram Sang

[permalink] [raw]
Subject: Re: [PATCH v2 1/2] i2c: eg20t: Drop PCI wakeup calls from .suspend/.resume

On Thu, Aug 06, 2020 at 01:06:15AM +0530, Vaibhav Gupta wrote:
> 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 <[email protected]>
> Signed-off-by: Vaibhav Gupta <[email protected]>

Applied to for-next, thanks!


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