Re: [PATCH v3 3/3] backlight: as3711: add OF support

From: Ryan Mallon
Date: Mon Mar 25 2013 - 19:09:42 EST


On 26/03/13 09:40, Andrew Morton wrote:
> On Fri, 22 Mar 2013 17:15:49 +0100 Guennadi Liakhovetski <g.liakhovetski@xxxxxx> wrote:
>
>> Add support for configuring AS3711 backlight driver from DT.
>>
>> Signed-off-by: Guennadi Liakhovetski <g.liakhovetski+renesas@xxxxxxxxx>
>> Reviwed-by: Mark Brown <broonie@xxxxxxxxxxxxxxxxxxxxxxxxxxx>
>> ---
>> drivers/video/backlight/as3711_bl.c | 118 ++++++++++++++++++++++++++++++++++-
>> 1 files changed, 117 insertions(+), 1 deletions(-)
>>
>> diff --git a/drivers/video/backlight/as3711_bl.c b/drivers/video/backlight/as3711_bl.c
>> index 41d52fe..123887c 100644
>> --- a/drivers/video/backlight/as3711_bl.c
>> +++ b/drivers/video/backlight/as3711_bl.c
>> @@ -258,6 +258,109 @@ static int as3711_bl_register(struct platform_device *pdev,
>> return 0;
>> }
>>
>> +static int as3711_backlight_parse_dt(struct device *dev)
>> +{
>> + struct as3711_bl_pdata *pdata = dev_get_platdata(dev);
>> + struct device_node *bl =
>> + of_find_node_by_name(dev->parent->of_node, "backlight"), *fb;
>> + int ret;
>
> It's tidier to do
>
> struct device_node *bl;
>
> bl = of_find_node_by_name(dev->parent->of_node, "backlight"), *fb;
>
> and avoid the 80-col trickery.

The other reason being that it now becomes much more apparent that *fb
is not an argument to of_find_node_by_name(), but a second variable of
type struct device_node :-).

~Ryan

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