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Subject[PATCH 28/36] video: backlight: lcd: convert class code to use dev_groups
Date
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.

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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