2015-08-17 16:19:19

by Fu, Zhonghui

Subject: [PATCH] i2c: enable i2c adapter to suspend/resume asynchronously

Enable i2c adapter to suspend/resume asynchronously. This can improve
system suspend/resume speed.

Signed-off-by: Zhonghui Fu <[email protected]>
---
drivers/i2c/i2c-core.c | 2 ++
1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c
index c83e4d1..90251be 100644
--- a/drivers/i2c/i2c-core.c
+++ b/drivers/i2c/i2c-core.c
@@ -1439,6 +1439,8 @@ static int i2c_register_adapter(struct i2c_adapter *adap)

pm_runtime_no_callbacks(&adap->dev);

+ device_enable_async_suspend(&adap->dev);
+
#ifdef CONFIG_I2C_COMPAT
res = class_compat_create_link(i2c_adapter_compat_class, &adap->dev,
adap->dev.parent);
-- 1.7.1

2015-08-24 15:22:10

by Fu, Zhonghui

Subject: Re: [PATCH] i2c: enable i2c adapter to suspend/resume asynchronously

Hi,

Any comments are welcome.


Thanks,
Zhonghui



On 2015/8/18 0:17, Fu, Zhonghui wrote:
> Enable i2c adapter to suspend/resume asynchronously. This can improve
> system suspend/resume speed.
>
> Signed-off-by: Zhonghui Fu <[email protected]>
> ---
> drivers/i2c/i2c-core.c | 2 ++
> 1 files changed, 2 insertions(+), 0 deletions(-)
>
> diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c
> index c83e4d1..90251be 100644
> --- a/drivers/i2c/i2c-core.c
> +++ b/drivers/i2c/i2c-core.c
> @@ -1439,6 +1439,8 @@ static int i2c_register_adapter(struct i2c_adapter *adap)
>
> pm_runtime_no_callbacks(&adap->dev);
>
> + device_enable_async_suspend(&adap->dev);
> +
> #ifdef CONFIG_I2C_COMPAT
> res = class_compat_create_link(i2c_adapter_compat_class, &adap->dev,
> adap->dev.parent);
> -- 1.7.1
>