On 22/05/15 05:19, Kevin Tsai wrote:
> - Added Power Management support.
> - Added driver remove routine.
>
> Signed-off-by: Kevin Tsai <ktsai@xxxxxxxxxxxxxxxx>
This one is fine other than the patch title.
You could split it but as the two changes don't interfere and are
kind of related, this one is fine as a single patch.
> ---
> drivers/iio/light/cm32181.c | 44 ++++++++++++++++++++++++++++++++++++++++++++
> 1 file changed, 44 insertions(+)
>
> diff --git a/drivers/iio/light/cm32181.c b/drivers/iio/light/cm32181.c
> index 6b11145..9bc3e1f 100644
> --- a/drivers/iio/light/cm32181.c
> +++ b/drivers/iio/light/cm32181.c
> @@ -370,11 +370,51 @@ static int cm32181_probe(struct i2c_client *client,
> return 0;
> }
>
> +static int cm32181_remove(struct i2c_client *client)
> +{
> + i2c_smbus_write_word_data(client, CM32181_REG_ADDR_CMD,
> + CM32181_CMD_ALS_DISABLE);
> +
> + return 0;
> +}
> +
> static const struct i2c_device_id cm32181_id[] = {
> { "cm32181", 0 },
> { }
> };
>
> +#ifdef CONFIG_PM_SLEEP
> +static int cm32181_suspend(struct device *dev)
> +{
> + struct iio_dev *indio_dev = i2c_get_clientdata(to_i2c_client(dev));
> + struct cm32181_chip *chip = iio_priv(indio_dev);
> + struct i2c_client *client = chip->client;
> + int ret;
> +
> + ret = i2c_smbus_write_word_data(client, CM32181_REG_ADDR_CMD,
> + CM32181_CMD_ALS_DISABLE);
> +
> + return ret;
> +}
> +
> +static int cm32181_resume(struct device *dev)
> +{
> + struct iio_dev *indio_dev = i2c_get_clientdata(to_i2c_client(dev));
> + struct cm32181_chip *chip = iio_priv(indio_dev);
> + struct i2c_client *client = chip->client;
> + int ret;
> +
> + chip->conf_regs[CM32181_REG_ADDR_CMD] &= ~CM32181_CMD_ALS_DISABLE;
> + ret = i2c_smbus_write_word_data(client, CM32181_REG_ADDR_CMD,
> + chip->conf_regs[CM32181_REG_ADDR_CMD]);
> +
> + return ret;
> +}
> +
> +static const struct dev_pm_ops cm32181_pm_ops = {
> + SET_SYSTEM_SLEEP_PM_OPS(cm32181_suspend, cm32181_resume)};
> +#endif
> +
> MODULE_DEVICE_TABLE(i2c, cm32181_id);
>
> static const struct of_device_id cm32181_of_match[] = {
> @@ -387,9 +427,13 @@ static struct i2c_driver cm32181_driver = {
> .name = "cm32181",
> .of_match_table = of_match_ptr(cm32181_of_match),
> .owner = THIS_MODULE,
> +#ifdef CONFIG_PM_SLEEP
> + .pm = &cm32181_pm_ops,
> +#endif
> },
> .id_table = cm32181_id,
> .probe = cm32181_probe,
> + .remove = cm32181_remove,
> };
>
> module_i2c_driver(cm32181_driver);
>
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