linux-kernel - Re: [PATCH v2 2/4] regulator: lp872x: Add enable GPIO pin support

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Date:	Mon, 15 Feb 2016 08:31:02 +0900
From:	"Kim, Milo" <milo.kim@...com>
To:	Paul Kocialkowski <contact@...lk.fr>
CC:	<linux-kernel@...r.kernel.org>, Rob Herring <robh+dt@...nel.org>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	Russell King <linux@....linux.org.uk>,
	Benoît Cousson <bcousson@...libre.com>,
	Tony Lindgren <tony@...mide.com>,
	Liam Girdwood <lgirdwood@...il.com>,
	Mark Brown <broonie@...nel.org>,
	Javier Martinez Canillas <javier@...hile0.org>,
	<devicetree@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>,
	<linux-omap@...r.kernel.org>
Subject: Re: [PATCH v2 2/4] regulator: lp872x: Add enable GPIO pin support

On 2/13/2016 3:25 AM, Paul Kocialkowski wrote:
>>> > >+
>>> > >+	/* Always set enable GPIO high. */
>>> > >+	ret = devm_gpio_request_one(lp->dev, gpio, GPIOF_OUT_INIT_HIGH, "LP872X EN");
>>> > >+	if (ret) {
>>> > >+		dev_err(lp->dev, "gpio request err: %d\n", ret);
>>> > >+		return ret;
>>> > >+	}
>>> > >+
>>> > >+	/* Each chip has a different enable delay. */
>>> > >+	if (lp->chipid == LP8720)
>>> > >+		usleep_range(LP8720_ENABLE_DELAY, 1.5 * LP8720_ENABLE_DELAY);
>>> > >+	else
>>> > >+		usleep_range(LP8725_ENABLE_DELAY, 1.5 * LP8725_ENABLE_DELAY);
>>> > >+
>>> > >+	return 0;
>>> > >+}
>>> > >+
>>> > >   static int lp872x_config(struct lp872x *lp)
>>> > >   {
>>> > >   	struct lp872x_platform_data *pdata = lp->pdata;
>>> > >@@ -875,6 +903,8 @@ static struct lp872x_platform_data
>>> > >   	of_property_read_u8(np, "ti,dvs-state", &dvs_state);
>>> > >   	pdata->dvs->init_state = dvs_state ? DVS_HIGH : DVS_LOW;
>>> > >
>>> > >+	pdata->enable_gpio = of_get_named_gpio(np, "enable-gpios", 0);
>> >
>> >Please move this code to lp872x_populate_pdata_from_dt().
> This already adds it in lp872x_populate_pdata_from_dt (see the context
> around the insertion).

Ah, sorry. Your patch is correct.

> I don't know why the diff makes it seem like it's added in
> lp872x_config. It's really not.

I think it was from a line break of lp872x_populate_pdata_from_dt().
Let me add my ACK to this patch. Thank you.

Best regards,
Milo