Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18;
Subject: Re: [PATCH resend v1 7/7] pps: clients: gpio: Rearrange optional
 stuff in pps_gpio_setup()
To:     Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
        linux-kernel@vger.kernel.org
Cc:     Ryan Govostes <rgovostes@whoi.edu>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>
References: <20210309112403.36633-1-andriy.shevchenko@linux.intel.com>
 <20210309112403.36633-7-andriy.shevchenko@linux.intel.com>
From:   Rodolfo Giometti <giometti@enneenne.com>
Message-ID: <958cff66-2396-79c6-13f0-bf375afb286b@enneenne.com>
Date:   Tue, 9 Mar 2021 13:30:45 +0100
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101
 Thunderbird/78.7.1
MIME-Version: 1.0
In-Reply-To: <20210309112403.36633-7-andriy.shevchenko@linux.intel.com>
Content-Type: text/plain; charset=utf-8
Content-Language: en-US
Content-Transfer-Encoding: 7bit
Precedence: bulk

On 09/03/21 12:24, Andy Shevchenko wrote:
> Rearrange optional stuff in pps_gpio_setup() so it will go after mandatory one
> and with reduced indentation. This will increase readability of the sources.
> 
> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
> ---
>  drivers/pps/clients/pps-gpio.c | 33 ++++++++++++++++++---------------
>  1 file changed, 18 insertions(+), 15 deletions(-)
> 
> diff --git a/drivers/pps/clients/pps-gpio.c b/drivers/pps/clients/pps-gpio.c
> index b097da5a659a..35799e6401c9 100644
> --- a/drivers/pps/clients/pps-gpio.c
> +++ b/drivers/pps/clients/pps-gpio.c
> @@ -110,28 +110,31 @@ static int pps_gpio_setup(struct device *dev)
>  		return dev_err_probe(dev, PTR_ERR(data->gpio_pin),
>  				     "failed to request PPS GPIO\n");
>  
> +	data->assert_falling_edge =
> +		device_property_read_bool(dev, "assert-falling-edge");
> +
>  	data->echo_pin = devm_gpiod_get_optional(dev, "echo", GPIOD_OUT_LOW);
>  	if (IS_ERR(data->echo_pin))
>  		return dev_err_probe(dev, PTR_ERR(data->echo_pin),
>  				     "failed to request ECHO GPIO\n");
>  
> -	if (data->echo_pin) {
> -		ret = device_property_read_u32(dev, "echo-active-ms", &value);
> -		if (ret) {
> -			dev_err(dev, "failed to get echo-active-ms from FW\n");
> -			return ret;
> -		}
> -		data->echo_active_ms = value;
> -		/* sanity check on echo_active_ms */
> -		if (!data->echo_active_ms || data->echo_active_ms > 999) {
> -			dev_err(dev, "echo-active-ms: %u - bad value from FW\n",
> -				data->echo_active_ms);
> -			return -EINVAL;
> -		}
> +	if (!data->echo_pin)
> +		return 0;
> +
> +	ret = device_property_read_u32(dev, "echo-active-ms", &value);
> +	if (ret) {
> +		dev_err(dev, "failed to get echo-active-ms from FW\n");
> +		return ret;
>  	}
>  
> -	data->assert_falling_edge =
> -		device_property_read_bool(dev, "assert-falling-edge");
> +	/* sanity check on echo_active_ms */
> +	if (!value || value > 999) {
> +		dev_err(dev, "echo-active-ms: %u - bad value from FW\n", value);
> +		return -EINVAL;
> +	}
> +
> +	data->echo_active_ms = value;
> +
>  	return 0;
>  }
>  
> 

Acked-by: Rodolfo Giometti <giometti@enneenne.com>

-- 
GNU/Linux Solutions                  e-mail: giometti@enneenne.com
Linux Device Driver                          giometti@linux.it
Embedded Systems                     phone:  +39 349 2432127
UNIX programming                     skype:  rodolfo.giometti