From: myungjoo.ham@samsung.com (MyungJoo Ham)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 1/5] Samsung SoC ADC: use regulator (VDD for ADC).
Date: Wed, 22 Jun 2011 11:40:46 +0900 [thread overview]
Message-ID: <BANLkTinQYV8FJsy+5_sU8sTBhYPC7AQPow@mail.gmail.com> (raw)
In-Reply-To: <20110621104357.GE22177@opensource.wolfsonmicro.com>
On Tue, Jun 21, 2011 at 7:43 PM, Mark Brown
<broonie@opensource.wolfsonmicro.com> wrote:
> On Tue, Jun 21, 2011 at 10:58:43AM +0900, MyungJoo Ham wrote:
>
>> + ? ? ret = regulator_enable(adc->vdd);
>> + ? ? if (!ret)
>> + ? ? ? ? ? ? goto err_ioremap;
>> +
>
> This test looks the wrong way round? ?regulator_enable() should return 0
> on success but this will treat that as an error.
Whoops.. thanks for pointing that out!
>
>> ?static int s3c_adc_resume(struct platform_device *pdev)
>> ?{
>> ? ? ? struct adc_device *adc = platform_get_drvdata(pdev);
>> + ? ? int ret;
>>
>> + ? ? ret = regulator_enable(adc->vdd);
>> ? ? ? clk_enable(adc->clk);
>> ? ? ? enable_irq(adc->irq);
>>
>> ? ? ? writel(adc->prescale | S3C2410_ADCCON_PRSCEN,
>> ? ? ? ? ? ? ?adc->regs + S3C2410_ADCCON);
>>
>> - ? ? return 0;
>> + ? ? return ret;
>
> Seems better to return as soon as we notice the error, no point in
> starting anything else up if we don't have power.
>
Ok. I see.
--
MyungJoo Ham (???), Ph.D.
Mobile Software Platform Lab,
Digital Media and Communications (DMC) Business
Samsung Electronics
cell: 82-10-6714-2858
next prev parent reply other threads:[~2011-06-22 2:40 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-06-16 8:30 [PATCH 1/2] Samsung SoC ADC: use regulator (VDD for ADC) MyungJoo Ham
2011-06-16 8:30 ` [PATCH 2/2] Samsung SoC ADC: Channel selection for S5PV210, S5PC110, and Exynos4 MyungJoo Ham
2011-06-16 8:33 ` [PATCH] Samsung SoC ADC: register address definition for S5PV210/S5PC110/Exynos4 MyungJoo Ham
2011-06-16 8:47 ` [PATCH] Samsung SoC: header file revised to prevent declaring duplicated MyungJoo Ham
2011-06-22 9:10 ` Kukjin Kim
2011-06-18 15:06 ` [PATCH 1/2] Samsung SoC ADC: use regulator (VDD for ADC) Mark Brown
2011-06-20 5:16 ` MyungJoo Ham
2011-06-20 10:17 ` Mark Brown
2011-06-21 1:58 ` [PATCH v2 0/5] Update Samsung-SoC ADC (regulator / recent CPU support) MyungJoo Ham
2011-06-21 1:58 ` [PATCH v2 1/5] Samsung SoC ADC: use regulator (VDD for ADC) MyungJoo Ham
2011-06-21 10:43 ` Mark Brown
2011-06-22 2:40 ` MyungJoo Ham [this message]
2011-06-21 1:58 ` [PATCH v2 2/5] Samsung SoC ADC: Channel selection for S5PV210, S5PC110, and Exynos4 MyungJoo Ham
2011-06-29 13:42 ` Kukjin Kim
2011-06-30 7:50 ` MyungJoo Ham
2011-06-21 1:58 ` [PATCH v2 3/5] ARM: Exynos4: Support ADC MyungJoo Ham
2011-06-29 13:52 ` Kukjin Kim
2011-06-21 1:58 ` [PATCH v2 4/5] ARM: S5PC110/S5PV210: " MyungJoo Ham
2011-06-21 1:58 ` [PATCH v2 5/5] Samsung SoC: header file revised to prevent declaring duplicated MyungJoo Ham
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