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From: Dan Murphy <dmurphy@ti.com>
To: "Guido Günther" <agx@sigxcpu.org>,
	"Jacek Anaszewski" <jacek.anaszewski@gmail.com>,
	"Pavel Machek" <pavel@ucw.cz>,
	linux-leds@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v3 3/5] leds: lm3692x: Handle failure to probe the regulator
Date: Mon, 23 Sep 2019 09:17:39 -0500
Message-ID: <c1073a35-adaa-1a9b-e1d6-1b36ee7ac1a5@ti.com> (raw)
In-Reply-To: <32fd08565f8dff39ce9a13f7b0a2546d22913b3a.1569100154.git.agx@sigxcpu.org>

Guido

Thanks for the update

Reviewed-by: Dan Murphy <dmurphy@ti.com>

On 9/21/19 4:12 PM, Guido Günther wrote:
> Instead use devm_regulator_get_optional since the regulator
> is optional and check for errors.
>
> Signed-off-by: Guido Günther <agx@sigxcpu.org>
> Acked-by: Pavel Machek <pavel@ucw.cz>
> ---
>   drivers/leds/leds-lm3692x.c | 13 +++++++++++--
>   1 file changed, 11 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/leds/leds-lm3692x.c b/drivers/leds/leds-lm3692x.c
> index ad76e34455ff..54e9bd2d288b 100644
> --- a/drivers/leds/leds-lm3692x.c
> +++ b/drivers/leds/leds-lm3692x.c
> @@ -337,9 +337,18 @@ static int lm3692x_probe_dt(struct lm3692x_led *led)
>   		return ret;
>   	}
>   
> -	led->regulator = devm_regulator_get(&led->client->dev, "vled");
> -	if (IS_ERR(led->regulator))
> +	led->regulator = devm_regulator_get_optional(&led->client->dev, "vled");
> +	if (IS_ERR(led->regulator)) {
> +		ret = PTR_ERR(led->regulator);
> +		if (ret != -ENODEV) {
> +			if (ret != -EPROBE_DEFER)
> +				dev_err(&led->client->dev,
> +					"Failed to get vled regulator: %d\n",
> +					ret);
> +			return ret;
> +		}
>   		led->regulator = NULL;
> +	}
>   
>   	child = device_get_next_child_node(&led->client->dev, child);
>   	if (!child) {

  reply index

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-09-21 21:12 [PATCH v3 0/5] leds: lm3692x: Probing and flag fixes Guido Günther
2019-09-21 21:12 ` [PATCH v3 1/5] leds: lm3692x: Print error value on dev_err Guido Günther
2019-09-21 21:12 ` [PATCH v3 2/5] leds: lm3692x: Don't overwrite return value in error path Guido Günther
2019-09-23 14:16   ` Dan Murphy
2019-09-21 21:12 ` [PATCH v3 3/5] leds: lm3692x: Handle failure to probe the regulator Guido Günther
2019-09-23 14:17   ` Dan Murphy [this message]
2019-09-21 21:12 ` [PATCH v3 4/5] leds: lm3692x: Use flags from LM3692X_BOOST_CTRL Guido Günther
2019-09-21 21:12 ` [PATCH v3 5/5] leds: lm3692x: Use flags from LM3692X_BRT_CTRL Guido Günther
2019-09-24 18:20 ` [PATCH v3 0/5] leds: lm3692x: Probing and flag fixes Jacek Anaszewski

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