Re: [PATCH v6 09/15] staging: typec: tcpci: register port before request irq

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On Mon, May 28, 2018 at 10:52:41AM +0800, Li Jun wrote:
> From: Peter Chen <peter.chen@xxxxxxx>
> 
> With that we can clear any pending events and the port is registered
> so driver can be ready to handle typec events once we request irq.
> 
> Signed-off-by: Peter Chen <peter.chen@xxxxxxx>
> Signed-off-by: Li Jun <jun.li@xxxxxxx>

FWIW:

Reviewed-by: Heikki Krogerus <heikki.krogerus@xxxxxxxxxxxxxxx>

> ---
>  drivers/staging/typec/tcpci.c | 15 +++++++++------
>  1 file changed, 9 insertions(+), 6 deletions(-)
> 
> diff --git a/drivers/staging/typec/tcpci.c b/drivers/staging/typec/tcpci.c
> index b63f147..3b35fce 100644
> --- a/drivers/staging/typec/tcpci.c
> +++ b/drivers/staging/typec/tcpci.c
> @@ -537,24 +537,27 @@ static int tcpci_probe(struct i2c_client *client,
>  	if (IS_ERR(chip->data.regmap))
>  		return PTR_ERR(chip->data.regmap);
>  
> +	i2c_set_clientdata(client, chip);
> +
>  	/* Disable chip interrupts before requesting irq */
>  	err = regmap_raw_write(chip->data.regmap, TCPC_ALERT_MASK, &val,
>  			       sizeof(u16));
>  	if (err < 0)
>  		return err;
>  
> +	chip->tcpci = tcpci_register_port(&client->dev, &chip->data);
> +	if (IS_ERR(chip->tcpci))
> +		return PTR_ERR(chip->tcpci);
> +
>  	err = devm_request_threaded_irq(&client->dev, client->irq, NULL,
>  					_tcpci_irq,
>  					IRQF_ONESHOT | IRQF_TRIGGER_LOW,
>  					dev_name(&client->dev), chip);
> -	if (err < 0)
> +	if (err < 0) {
> +		tcpci_unregister_port(chip->tcpci);
>  		return err;
> +	}
>  
> -	chip->tcpci = tcpci_register_port(&client->dev, &chip->data);
> -	if (IS_ERR(chip->tcpci))
> -		return PTR_ERR(chip->tcpci);
> -
> -	i2c_set_clientdata(client, chip);
>  	return 0;
>  }

Thanks,

-- 
heikki
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