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SubjectRe: [PATCH 28/36] video: backlight: lcd: convert class code to use dev_groups
Date
On Thursday, July 25, 2013 7:06 AM, Greg Kroah-Hartman wrote:
>
> The dev_attrs field of struct class is going away soon, dev_groups
> should be used instead. This converts the video backlight lcd class
> code to use the correct field.
>
> Cc: Richard Purdie <rpurdie@rpsys.net>
> Cc: Jingoo Han <jg1.han@samsung.com>
> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
> ---
>
> Richard, feel free to take this through your tree, or ACK it and I can
> take it through mine.

Hi Greg Kroah-Hartman,

I hope that it will go through your tree with my Ack.

Acked-by: Jingoo Han <jg1.han@samsung.com>

Best regards,
Jingoo Han

>
> drivers/video/backlight/lcd.c | 26 +++++++++++++++-----------
> 1 file changed, 15 insertions(+), 11 deletions(-)
>
> diff --git a/drivers/video/backlight/lcd.c b/drivers/video/backlight/lcd.c
> index 41964a71..93cf15ef 100644
> --- a/drivers/video/backlight/lcd.c
> +++ b/drivers/video/backlight/lcd.c
> @@ -89,7 +89,7 @@ static inline void lcd_unregister_fb(struct lcd_device *ld)
> }
> #endif /* CONFIG_FB */
>
> -static ssize_t lcd_show_power(struct device *dev, struct device_attribute *attr,
> +static ssize_t lcd_power_show(struct device *dev, struct device_attribute *attr,
> char *buf)
> {
> int rc;
> @@ -105,7 +105,7 @@ static ssize_t lcd_show_power(struct device *dev, struct device_attribute *attr,
> return rc;
> }
>
> -static ssize_t lcd_store_power(struct device *dev,
> +static ssize_t lcd_power_store(struct device *dev,
> struct device_attribute *attr, const char *buf, size_t count)
> {
> int rc;
> @@ -128,8 +128,9 @@ static ssize_t lcd_store_power(struct device *dev,
>
> return rc;
> }
> +static DEVICE_ATTR_RW(lcd_power);
>
> -static ssize_t lcd_show_contrast(struct device *dev,
> +static ssize_t contrast_show(struct device *dev,
> struct device_attribute *attr, char *buf)
> {
> int rc = -ENXIO;
> @@ -143,7 +144,7 @@ static ssize_t lcd_show_contrast(struct device *dev,
> return rc;
> }
>
> -static ssize_t lcd_store_contrast(struct device *dev,
> +static ssize_t contrast_store(struct device *dev,
> struct device_attribute *attr, const char *buf, size_t count)
> {
> int rc;
> @@ -166,14 +167,16 @@ static ssize_t lcd_store_contrast(struct device *dev,
>
> return rc;
> }
> +static DEVICE_ATTR_RW(contrast);
>
> -static ssize_t lcd_show_max_contrast(struct device *dev,
> +static ssize_t max_contrast_show(struct device *dev,
> struct device_attribute *attr, char *buf)
> {
> struct lcd_device *ld = to_lcd_device(dev);
>
> return sprintf(buf, "%d\n", ld->props.max_contrast);
> }
> +static DEVICE_ATTR_RO(max_contrast);
>
> static struct class *lcd_class;
>
> @@ -183,12 +186,13 @@ static void lcd_device_release(struct device *dev)
> kfree(ld);
> }
>
> -static struct device_attribute lcd_device_attributes[] = {
> - __ATTR(lcd_power, 0644, lcd_show_power, lcd_store_power),
> - __ATTR(contrast, 0644, lcd_show_contrast, lcd_store_contrast),
> - __ATTR(max_contrast, 0444, lcd_show_max_contrast, NULL),
> - __ATTR_NULL,
> +static struct attribute *lcd_device_attrs[] = {
> + &dev_attr_lcd_power.attr,
> + &dev_attr_contrast.attr,
> + &dev_attr_max_contrast.attr,
> + NULL,
> };
> +ATTRIBUTE_GROUPS(lcd_device);
>
> /**
> * lcd_device_register - register a new object of lcd_device class.
> @@ -344,7 +348,7 @@ static int __init lcd_class_init(void)
> return PTR_ERR(lcd_class);
> }
>
> - lcd_class->dev_attrs = lcd_device_attributes;
> + lcd_class->dev_groups = lcd_device_groups;
> return 0;
> }
>
> --
> 1.8.3.rc0.20.gb99dd2e



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