linux-kernel - Re: [PATCH] RTC: Update for final round of review comments

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Message-ID: <20090827183559.GA12964@sortiz.org>
Date:	Thu, 27 Aug 2009 20:36:00 +0200
From:	Samuel Ortiz <sameo@...ux.intel.com>
To:	Mark Brown <broonie@...nsource.wolfsonmicro.com>
Cc:	linux-kernel@...r.kernel.org,
	Alessandro Zummo <a.zummo@...ertech.it>,
	rtc-linux@...glegroups.com
Subject: Re: [PATCH] RTC: Update for final round of review comments

Hi Mark,

On Tue, Aug 25, 2009 at 11:51:08AM +0100, Mark Brown wrote:
> It looks like an early version of the WM831x RTC driver got merged into
> the mfd tree without fixes for some final review comments:
Sorry about that, fixed now...

Cheers,
Samuel.


>  - Consistently get interrupts by name.
>  - Implement set_mmss() rather than set_time().
>  - Make the error checking a bit less excessive and noisy.
>  - Clean up the private data structure.
> 
> There shouldn't be any operational effect.
> 
> Signed-off-by: Mark Brown <broonie@...nsource.wolfsonmicro.com>
> Acked-by: Alessandro Zummo <a.zummo@...ertech.it>
> Cc: rtc-linux@...glegroups.com
> ---
>  drivers/rtc/rtc-wm831x.c |   29 +++++++----------------------
>  1 files changed, 7 insertions(+), 22 deletions(-)
> 
> diff --git a/drivers/rtc/rtc-wm831x.c b/drivers/rtc/rtc-wm831x.c
> index 99e7845..79795cd 100644
> --- a/drivers/rtc/rtc-wm831x.c
> +++ b/drivers/rtc/rtc-wm831x.c
> @@ -92,8 +92,7 @@
>  struct wm831x_rtc {
>  	struct wm831x *wm831x;
>  	struct rtc_device *rtc;
> -	int alarm_enabled;
> -	int per_irq;
> +	unsigned int alarm_enabled:1;
>  };
>  
>  /*
> @@ -136,7 +135,7 @@ static int wm831x_rtc_readtime(struct device *dev, struct rtc_time *tm)
>  			u32 time = (time1[0] << 16) | time1[1];
>  
>  			rtc_time_to_tm(time, tm);
> -			return 0;
> +			return rtc_valid_tm(tm);
>  		}
>  
>  	} while (++count < WM831X_GET_TIME_RETRIES);
> @@ -149,21 +148,15 @@ static int wm831x_rtc_readtime(struct device *dev, struct rtc_time *tm)
>  /*
>   * Set current time and date in RTC
>   */
> -static int wm831x_rtc_settime(struct device *dev, struct rtc_time *tm)
> +static int wm831x_rtc_set_mmss(struct device *dev, unsigned long time)
>  {
>  	struct wm831x_rtc *wm831x_rtc = dev_get_drvdata(dev);
>  	struct wm831x *wm831x = wm831x_rtc->wm831x;
>  	struct rtc_time new_tm;
> -	unsigned long time, new_time;
> +	unsigned long new_time;
>  	int ret;
>  	int count = 0;
>  
> -	ret = rtc_tm_to_time(tm, &time);
> -	if (ret < 0) {
> -		dev_err(dev, "Failed to convert time: %d\n", ret);
> -		return ret;
> -	}
> -
>  	ret = wm831x_reg_write(wm831x, WM831X_RTC_TIME_1,
>  			       (time >> 16) & 0xffff);
>  	if (ret < 0) {
> @@ -356,7 +349,7 @@ static irqreturn_t wm831x_per_irq(int irq, void *data)
>  
>  static const struct rtc_class_ops wm831x_rtc_ops = {
>  	.read_time = wm831x_rtc_readtime,
> -	.set_time = wm831x_rtc_settime,
> +	.set_mmss = wm831x_rtc_set_mmss,
>  	.read_alarm = wm831x_rtc_readalarm,
>  	.set_alarm = wm831x_rtc_setalarm,
>  	.alarm_irq_enable = wm831x_rtc_alarm_irq_enable,
> @@ -437,7 +430,6 @@ static int wm831x_rtc_probe(struct platform_device *pdev)
>  
>  	platform_set_drvdata(pdev, wm831x_rtc);
>  	wm831x_rtc->wm831x = wm831x;
> -	wm831x_rtc->per_irq = per_irq;
>  
>  	ret = wm831x_reg_read(wm831x, WM831X_RTC_CONTROL);
>  	if (ret < 0) {
> @@ -453,7 +445,6 @@ static int wm831x_rtc_probe(struct platform_device *pdev)
>  					      &wm831x_rtc_ops, THIS_MODULE);
>  	if (IS_ERR(wm831x_rtc->rtc)) {
>  		ret = PTR_ERR(wm831x_rtc->rtc);
> -		dev_err(&pdev->dev, "Failed to register RTC: %d\n", ret);
>  		goto err;
>  	}
>  
> @@ -463,7 +454,6 @@ static int wm831x_rtc_probe(struct platform_device *pdev)
>  	if (ret != 0) {
>  		dev_err(&pdev->dev, "Failed to request periodic IRQ %d: %d\n",
>  			per_irq, ret);
> -		goto err_rtc;
>  	}
>  
>  	ret = wm831x_request_irq(wm831x, alm_irq, wm831x_alm_irq,
> @@ -472,15 +462,10 @@ static int wm831x_rtc_probe(struct platform_device *pdev)
>  	if (ret != 0) {
>  		dev_err(&pdev->dev, "Failed to request alarm IRQ %d: %d\n",
>  			alm_irq, ret);
> -		goto err_per;
>  	}
>  
>  	return 0;
>  
> -err_per:
> -	wm831x_free_irq(wm831x, per_irq, wm831x_rtc);
> -err_rtc:
> -	rtc_device_unregister(wm831x_rtc->rtc);
>  err:
>  	kfree(wm831x_rtc);
>  	return ret;
> @@ -489,8 +474,8 @@ err:
>  static int __devexit wm831x_rtc_remove(struct platform_device *pdev)
>  {
>  	struct wm831x_rtc *wm831x_rtc = platform_get_drvdata(pdev);
> -	int per_irq = platform_get_irq(pdev, 0);
> -	int alm_irq = platform_get_irq(pdev, 1);
> +	int per_irq = platform_get_irq_byname(pdev, "PER");
> +	int alm_irq = platform_get_irq_byname(pdev, "ALM");
>  
>  	wm831x_free_irq(wm831x_rtc->wm831x, alm_irq, wm831x_rtc);
>  	wm831x_free_irq(wm831x_rtc->wm831x, per_irq, wm831x_rtc);
> -- 
> 1.6.3.3
> 

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