linux-kernel - Re: [PATCH 2/2] mfd: sec: Cleanup unused RTC fields: ono, WTSR and SMPL

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Date:	Wed, 25 Feb 2015 15:29:21 +0000
From:	Lee Jones <lee.jones@...aro.org>
To:	Krzysztof Kozlowski <k.kozlowski@...sung.com>
Cc:	Sangbeom Kim <sbkim73@...sung.com>,
	Samuel Ortiz <sameo@...ux.intel.com>,
	Alessandro Zummo <a.zummo@...ertech.it>,
	linux-kernel@...r.kernel.org, rtc-linux@...glegroups.com,
	Kyungmin Park <kyungmin.park@...sung.com>,
	Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
	Marek Szyprowski <m.szyprowski@...sung.com>
Subject: Re: [PATCH 2/2] mfd: sec: Cleanup unused RTC fields: ono, WTSR and
 SMPL

On Fri, 06 Feb 2015, Krzysztof Kozlowski wrote:

> The WTSR (Watchdog Timer Software Reset) and SMPL (Sudden Momentary
> Power Loss) were removed from rtc-s5m driver because they were not used.
> Remove them (and on/off interrupt) from main MFD driver and header.
> 
> Additionally remove ENOMEM error message.
> 
> Signed-off-by: Krzysztof Kozlowski <k.kozlowski@...sung.com>
> ---
>  drivers/mfd/sec-core.c           | 5 +----
>  include/linux/mfd/samsung/core.h | 9 ---------
>  2 files changed, 1 insertion(+), 13 deletions(-)
> 
> diff --git a/drivers/mfd/sec-core.c b/drivers/mfd/sec-core.c
> index 0a7bc43db4e4..2253d44e631c 100644
> --- a/drivers/mfd/sec-core.c
> +++ b/drivers/mfd/sec-core.c
> @@ -267,10 +267,8 @@ static struct sec_platform_data *sec_pmic_i2c_parse_dt_pdata(
>  	struct sec_platform_data *pd;
>  
>  	pd = devm_kzalloc(dev, sizeof(*pd), GFP_KERNEL);
> -	if (!pd) {
> -		dev_err(dev, "could not allocate memory for pdata\n");
> +	if (!pd)
>  		return ERR_PTR(-ENOMEM);
> -	}

This change doesn't have anything to do with removing the WTSR and
SMPL.

Once you've seperated this out, send both patches with my:

Acked-by: Lee Jones <lee.jones@...aro.org>

>  	/*
>  	 * ToDo: the 'wakeup' member in the platform data is more of a linux
> @@ -333,7 +331,6 @@ static int sec_pmic_probe(struct i2c_client *i2c,
>  	}
>  	if (pdata) {
>  		sec_pmic->device_type = pdata->device_type;
> -		sec_pmic->ono = pdata->ono;
>  		sec_pmic->irq_base = pdata->irq_base;
>  		sec_pmic->wakeup = pdata->wakeup;
>  		sec_pmic->pdata = pdata;
> diff --git a/include/linux/mfd/samsung/core.h b/include/linux/mfd/samsung/core.h
> index 3fdb7cfbffb3..75115384f3fc 100644
> --- a/include/linux/mfd/samsung/core.h
> +++ b/include/linux/mfd/samsung/core.h
> @@ -58,13 +58,7 @@ enum sec_device_type {
>   * @irq_base:		Base IRQ number for device, required for IRQs
>   * @irq:		Generic IRQ number for device
>   * @irq_data:		Runtime data structure for IRQ controller
> - * @ono:		Power onoff IRQ number for s5m87xx
>   * @wakeup:		Whether or not this is a wakeup device
> - * @wtsr_smpl:		Whether or not to enable in RTC driver the Watchdog
> - *			Timer Software Reset (registers set to default value
> - *			after PWRHOLD falling) and Sudden Momentary Power Loss
> - *			(PMIC will enter power on sequence after short drop in
> - *			VBATT voltage).
>   */
>  struct sec_pmic_dev {
>  	struct device *dev;
> @@ -77,9 +71,7 @@ struct sec_pmic_dev {
>  	int irq;
>  	struct regmap_irq_chip_data *irq_data;
>  
> -	int ono;
>  	bool wakeup;
> -	bool wtsr_smpl;
>  };
>  
>  int sec_irq_init(struct sec_pmic_dev *sec_pmic);
> @@ -95,7 +87,6 @@ struct sec_platform_data {
>  	int				irq_base;
>  	int				(*cfg_pmic_irq)(void);
>  
> -	int				ono;
>  	bool				wakeup;
>  	bool				buck_voltage_lock;
>  

-- 
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
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