linux-kernel - Re: [PATCH] leds: Added driver for the NXP PCA9685 I2C chip

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Date:	Tue, 15 Oct 2013 01:32:29 +0200
From:	Maximilian Güntner 
	<maximilian.guentner@...il.com>
To:	Bryan Wu <cooloney@...il.com>
Cc:	Richard Purdie <rpurdie@...ys.net>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	linux-leds <linux-leds@...r.kernel.org>,
	Peter Meerwald <pmeerw@...erw.net>
Subject: Re: [PATCH] leds: Added driver for the NXP PCA9685 I2C chip

On Monday 14 October 2013 15:08:15 Bryan Wu wrote:
> On Mon, Oct 14, 2013 at 10:31 AM, Maximilian Güntner
> 
> <maximilian.guentner@...il.com> wrote:
> > The NXP PCA9685 supports 16 channels/leds using a 12-bit PWM (4095
> > levels of brightness)
> > This driver supports configuration using platform_data.
> 
> I'm OK for this patch basically, just a little picky coding style
> issue as below.
> > +       if (brightness == 4096)
> > +               *((u16 *)(i2c_buffer+1)) = cpu_to_le16(0x1000);
> > +       else
> > +               *((u16 *)(i2c_buffer+1)) = 0x0000;
> 
> One empty line here probably is better.
fixed.
> > +
> > +       pdata = dev_get_platdata(&client->dev);
> > +
> 
> No need empty line here.
fixed.
> > +       pca9685 = devm_kzalloc(&client->dev, 16 * sizeof(*pca9685),
> > GFP_KERNEL); +
> 
> No need empty line here.
fixed.
> > &pca9685[i].led_cdev); +               if (err < 0)
> > +                       goto exit;
> > +       }
> 
> You can add one empty line here.
fixed

Thanks for the quick review. A v2 of this patch is on its way which addresses your and
Peter Meerwald's comments.

Maximilian
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