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backlight: Allow properties to be passed at registration

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Values such as max_brightness should be set before backlights are
registered, but the current API doesn't allow that. Add a parameter to
backlight_device_register and update drivers to ensure that they
set this correctly.

Signed-off-by: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
This commit is contained in:
Matthew Garrett
2010-02-17 16:39:44 -05:00
committed by Richard Purdie
parent 57e148b6a9
commit a19a6ee6ca
49 changed files with 271 additions and 151 deletions
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6
drivers/video/backlight/88pm860x_bl.c
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@@ -187,6 +187,7 @@ static int pm860x_backlight_probe(struct platform_device *pdev)
struct pm860x_backlight_data *data;
struct backlight_device *bl;
struct resource *res;
struct backlight_properties props;
unsigned char value;
char name[MFD_NAME_SIZE];
int ret;
@@ -223,14 +224,15 @@ static int pm860x_backlight_probe(struct platform_device *pdev)
return -EINVAL;
}
memset(&props, 0, sizeof(struct backlight_properties));
props.max_brightness = MAX_BRIGHTNESS;
bl = backlight_device_register(name, &pdev->dev, data,
&pm860x_backlight_ops);
&pm860x_backlight_ops, &props);
if (IS_ERR(bl)) {
dev_err(&pdev->dev, "failed to register backlight\n");
kfree(data);
return PTR_ERR(bl);
}
bl->props.max_brightness = MAX_BRIGHTNESS;
bl->props.brightness = MAX_BRIGHTNESS;
platform_set_drvdata(pdev, bl);