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Subjectlinux-next: build failure after merge of the final tree (backlight related)
Hi Richard,

After merging the final tree, today's linux-next build (powerpc
allyesconfig) failed like this:

drivers/video/backlight/88pm860x_bl.c: In function 'pm860x_backlight_probe':
drivers/video/backlight/88pm860x_bl.c:227: error: too few arguments to function 'backlight_device_register'
drivers/video/backlight/max8925_bl.c: In function 'max8925_backlight_probe':
drivers/video/backlight/max8925_bl.c:137: error: too few arguments to function 'backlight_device_register'

Caused by commit 85d0968607ab8c61de45a68c643b198020a1369d ("backlight:
Allow properties to be passed at registration") interacting with commits
d07e8bf83fd71567aaf9c27c3b133ab3cf8f3c4c ("backlight: Enable backlight in
88pm860x") and 4f811ef0d40048ae80b6ea77080b814725bffc58 ("backlight:
Enable max8925 backlight") which are now in Linus' tree (via the mfd tree)

I applied the following patch for today.

From: Stephen Rothwell <sfr@canb.auug.org.au>
Date: Wed, 10 Mar 2010 17:49:45 +1100
Subject: [PATCH] backlight: update for API change

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
---
drivers/video/backlight/88pm860x_bl.c | 6 ++++--
drivers/video/backlight/max8925_bl.c | 6 ++++--
2 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/drivers/video/backlight/88pm860x_bl.c b/drivers/video/backlight/88pm860x_bl.c
index b8f705c..93e25c7 100644
--- a/drivers/video/backlight/88pm860x_bl.c
+++ b/drivers/video/backlight/88pm860x_bl.c
@@ -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);
diff --git a/drivers/video/backlight/max8925_bl.c b/drivers/video/backlight/max8925_bl.c
index c267069..c91adaf 100644
--- a/drivers/video/backlight/max8925_bl.c
+++ b/drivers/video/backlight/max8925_bl.c
@@ -104,6 +104,7 @@ static int __devinit max8925_backlight_probe(struct platform_device *pdev)
struct max8925_backlight_pdata *pdata = NULL;
struct max8925_backlight_data *data;
struct backlight_device *bl;
+ struct backlight_properties props;
struct resource *res;
char name[MAX8925_NAME_SIZE];
unsigned char value;
@@ -133,14 +134,15 @@ static int __devinit max8925_backlight_probe(struct platform_device *pdev)
data->chip = chip;
data->current_brightness = 0;

+ memset(&props, 0, sizeof(struct backlight_properties));
+ props.max_brightness = MAX_BRIGHTNESS;
bl = backlight_device_register(name, &pdev->dev, data,
- &max8925_backlight_ops);
+ &max8925_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);
--
1.7.0
--
Cheers,
Stephen Rothwell sfr@canb.auug.org.au
http://www.canb.auug.org.au/~sfr/


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