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From: broonie@opensource.wolfsonmicro.com (Mark Brown)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 1/2] Exynos4 NURI: configure regulators and PMIC
Date: Mon, 20 Jun 2011 11:27:05 +0100	[thread overview]
Message-ID: <20110620102705.GC31864@opensource.wolfsonmicro.com> (raw)
In-Reply-To: <BANLkTiniwMCW-ED4CX=qybMvk243Zdki4Q@mail.gmail.com>

On Mon, Jun 20, 2011 at 03:26:08PM +0900, MyungJoo Ham wrote:
> On Sun, Jun 19, 2011 at 12:12 AM, Mark Brown

> >> +static struct regulator_consumer_supply nuri_max8997_ldo1_consumer[] = {
> >> + ? ? REGULATOR_SUPPLY("vadc", NULL), /* Used by CPU's ADC drv */
> >> +};

> > In the ADC regulator patch you called the supply vdd (though the chip
> > normally calls it vadc so that's the better name)...

> Um.. this happened as I have seperated NURI-board platform patch for
> ADC and PMIC.
> After ADC patch, that name became ("vdd", "s5p-adc").
> I'll let them either be merged or be disjoint completely.

You may as well get it right to start off with, there's no harm 
defining a supply that doesn't get used.

> Anyway, do you think "vadc" is better than "vdd" for ADC drivers? The
> circuit schematics says the pin on the consumer side is "VDD33_ADC"
> (VDD 3.3V for ADC).

If that's what the pin is called on the package that is the best name
to use.

> >> +static void __init nuri_pmic_init(void)
> >> +{
> >> + ? ? int gpio;
> >> +
> >> + ? ? nuri_max8997_pdata.irq_base = irq_get_next_irq(IRQ_GPIO_END);
> >> + ? ? gpio = NURI_PMIC_GPIO;
> >> + ? ? gpio_request(gpio, "AP_PMIC_IRQ");
> >> + ? ? s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(0xf));
> >> + ? ? s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE);
> >> +}

> > I'm not sure both the #define and the variable make sense here...

> I've defined them because two statements are using the gpio address of
> NURI_PMIC.

Right, but there's no point in doing both - either use the #define
everywhere or use the variable everywhere but having both seems
excessive.

WARNING: multiple messages have this Message-ID (diff)
From: Mark Brown <broonie@opensource.wolfsonmicro.com>
To: myungjoo.ham@gmail.com
Cc: linux-arm-kernel@lists.infradead.org,
	Kukjin Kim <kgene.kim@samsung.com>,
	Russell King <linux@arm.linux.org.uk>,
	linux-kernel@vger.kernel.org, dg77.kim@samsung.com,
	kyungmin.park@samsung.com
Subject: Re: [PATCH 1/2] Exynos4 NURI: configure regulators and PMIC
Date: Mon, 20 Jun 2011 11:27:05 +0100	[thread overview]
Message-ID: <20110620102705.GC31864@opensource.wolfsonmicro.com> (raw)
In-Reply-To: <BANLkTiniwMCW-ED4CX=qybMvk243Zdki4Q@mail.gmail.com>

On Mon, Jun 20, 2011 at 03:26:08PM +0900, MyungJoo Ham wrote:
> On Sun, Jun 19, 2011 at 12:12 AM, Mark Brown

> >> +static struct regulator_consumer_supply nuri_max8997_ldo1_consumer[] = {
> >> +     REGULATOR_SUPPLY("vadc", NULL), /* Used by CPU's ADC drv */
> >> +};

> > In the ADC regulator patch you called the supply vdd (though the chip
> > normally calls it vadc so that's the better name)...

> Um.. this happened as I have seperated NURI-board platform patch for
> ADC and PMIC.
> After ADC patch, that name became ("vdd", "s5p-adc").
> I'll let them either be merged or be disjoint completely.

You may as well get it right to start off with, there's no harm 
defining a supply that doesn't get used.

> Anyway, do you think "vadc" is better than "vdd" for ADC drivers? The
> circuit schematics says the pin on the consumer side is "VDD33_ADC"
> (VDD 3.3V for ADC).

If that's what the pin is called on the package that is the best name
to use.

> >> +static void __init nuri_pmic_init(void)
> >> +{
> >> +     int gpio;
> >> +
> >> +     nuri_max8997_pdata.irq_base = irq_get_next_irq(IRQ_GPIO_END);
> >> +     gpio = NURI_PMIC_GPIO;
> >> +     gpio_request(gpio, "AP_PMIC_IRQ");
> >> +     s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(0xf));
> >> +     s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE);
> >> +}

> > I'm not sure both the #define and the variable make sense here...

> I've defined them because two statements are using the gpio address of
> NURI_PMIC.

Right, but there's no point in doing both - either use the #define
everywhere or use the variable everywhere but having both seems
excessive.

  reply	other threads:[~2011-06-20 10:27 UTC|newest]

Thread overview: 50+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-06-16  9:09 [PATCH 1/2] Exynos4 NURI: configure regulators and PMIC MyungJoo Ham
2011-06-16  9:09 ` MyungJoo Ham
2011-06-16  9:09 ` [PATCH 2/2] Exynos4 NURI: add MAX17042 fuel gauge MyungJoo Ham
2011-06-16  9:09   ` MyungJoo Ham
2011-06-18 15:12 ` [PATCH 1/2] Exynos4 NURI: configure regulators and PMIC Mark Brown
2011-06-18 15:12   ` Mark Brown
2011-06-20  6:26   ` MyungJoo Ham
2011-06-20  6:26     ` MyungJoo Ham
2011-06-20 10:27     ` Mark Brown [this message]
2011-06-20 10:27       ` Mark Brown
2011-06-20  7:58   ` MyungJoo Ham
2011-06-20  7:58     ` MyungJoo Ham
2011-06-20 10:31     ` Mark Brown
2011-06-20 10:31       ` Mark Brown
2011-06-21  2:07       ` [PATCH v2 0/4] ARM: Exynos4: NURI Board Configuration Udpate MyungJoo Ham
2011-06-21  2:07         ` MyungJoo Ham
2011-06-21  2:07         ` [PATCH v2 1/4] Exynos4 NURI: configure regulators and PMIC MyungJoo Ham
2011-06-21  2:07           ` MyungJoo Ham
2011-06-21  5:33           ` Tushar Behera
2011-06-21  5:33             ` Tushar Behera
2011-06-21 11:10             ` Mark Brown
2011-06-21 11:10               ` Mark Brown
2011-06-21 11:49               ` Tushar Behera
2011-06-21 11:49                 ` Tushar Behera
2011-06-21 11:56                 ` Mark Brown
2011-06-21 11:56                   ` Mark Brown
2011-06-22  2:37                 ` MyungJoo Ham
2011-06-22  2:37                   ` MyungJoo Ham
2011-06-22  2:31             ` MyungJoo Ham
2011-06-22  2:31               ` MyungJoo Ham
2011-06-22  3:43               ` Tushar Behera
2011-06-22  3:43                 ` Tushar Behera
2011-06-22  9:17                 ` Kukjin Kim
2011-06-22  9:17                   ` Kukjin Kim
2011-06-21 11:07           ` Mark Brown
2011-06-21 11:07             ` Mark Brown
2011-06-21  2:07         ` [PATCH v2 2/4] Exynos4 NURI: configure MAX17042 fuel gauge MyungJoo Ham
2011-06-21  2:07           ` MyungJoo Ham
2011-06-21  2:07           ` MyungJoo Ham
2011-06-21  2:07         ` [PATCH v2 3/4] Exynos4 NURI: configure ADC MyungJoo Ham
2011-06-21  2:07           ` MyungJoo Ham
2011-06-21  2:07         ` [PATCH v2 4/4] Exynos4 NURI: support for NTC thermistor MyungJoo Ham
2011-06-21  2:07           ` MyungJoo Ham
2011-06-21  2:07           ` MyungJoo Ham
2011-06-21 10:50           ` Mark Brown
2011-06-21 10:50             ` Mark Brown
2011-06-22  5:00             ` MyungJoo Ham
2011-06-22  5:00               ` MyungJoo Ham
2011-06-22 11:08               ` Mark Brown
2011-06-22 11:08                 ` Mark Brown

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