hi, Rafael
Sorry for late response.
Yes,Only removing the "enable" line is sufficient. I have verified this, and made a new patch as follows.
Thanks,
Zhonghui
>From 3c89c22c5b35ddbdcadecd391f2521a15ffc2f4f Mon Sep 17 00:00:00 2001
From: Fu Zhonghui <zhonghui.fu@xxxxxxxxxxxxxxx>
Date: Sat, 13 Sep 2014 01:26:04 +0800
Subject: [PATCH] ACPI / platform / LPSS: disable async suspend/resume of LPSS devices
LPSS devices must suspend/resume in fixed order. Or some LPSS devices
will hang during the transition to ACPI_STATE_D0 state.
Signed-off-by: Li Aubrey <aubrey.li@xxxxxxxxxxxxxxx>
Signed-off-by: Fu Zhonghui <zhonghui.fu@xxxxxxxxxxxxxxx>
---
drivers/acpi/acpi_lpss.c | 1 -
1 files changed, 0 insertions(+), 1 deletions(-)
diff --git a/drivers/acpi/acpi_lpss.c b/drivers/acpi/acpi_lpss.c
index fddc1e8..b0ea767 100644
--- a/drivers/acpi/acpi_lpss.c
+++ b/drivers/acpi/acpi_lpss.c
@@ -419,7 +419,6 @@ static int acpi_lpss_create_device(struct acpi_device *adev,
adev->driver_data = pdata;
pdev = acpi_create_platform_device(adev);
if (!IS_ERR_OR_NULL(pdev)) {
- device_enable_async_suspend(&pdev->dev);
return 1;
}
-- 1.7.1
On 2014/9/9 21:17, Rafael J. Wysocki wrote:
> On Tuesday, September 09, 2014 01:36:48 PM Fu, Zhonghui wrote:
>> From 6deb00230f5df68da3ca7490402a0c537bf386bb Mon Sep 17 00:00:00 2001
>> From: Fu Zhonghui <zhonghui.fu@xxxxxxxxxxxxxxx>
>> Date: Tue, 9 Sep 2014 13:02:25 +0800
>> Subject: [PATCH] ACPI / platform / LPSS: disable async suspend/resume of LPSS devices
>>
>> LPSS devices must suspend/resume in fixed order. Or some LPSS devices
>> will hang during the transition to ACPI_STATE_D0 state.
>>
>> Signed-off-by: Li Aubrey <aubrey.li@xxxxxxxxxxxxxxx>
>> Signed-off-by: Fu Zhonghui <zhonghui.fu@xxxxxxxxxxxxxxx>
>> ---
>> drivers/acpi/acpi_lpss.c | 2 +-
>> 1 files changed, 1 insertions(+), 1 deletions(-)
>>
>> diff --git a/drivers/acpi/acpi_lpss.c b/drivers/acpi/acpi_lpss.c
>> index fddc1e8..54e5c97 100644
>> --- a/drivers/acpi/acpi_lpss.c
>> +++ b/drivers/acpi/acpi_lpss.c
>> @@ -419,7 +419,7 @@ static int acpi_lpss_create_device(struct acpi_device *adev,
>> adev->driver_data = pdata;
>> pdev = acpi_create_platform_device(adev);
>> if (!IS_ERR_OR_NULL(pdev)) {
>> - device_enable_async_suspend(&pdev->dev);
>> + device_disable_async_suspend(&pdev->dev);
> Removing the "enable" line should be sufficient for that. Isn't it?
>
>> return 1;
>> }
>>
>> -- 1.7.1
>>
>> --
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