[PATCH 2/7] backlight: apple_bl: use pr_debug/err instead of printk

This patch uses pr_debug/err instead of printk to allow dynamic debugging.
It also fixes checkpatch warnings as below:

WARNING: Prefer pr_debug(... to printk(KERN_DEBUG, ...
WARNING: Prefer pr_err(... to printk(KERN_ERR, ...

Cc: Matthew Garrett <mjg <at> redhat.com>
Cc: Richard Purdie <rpurdie <at> rpsys.net>
Signed-off-by: Jingoo Han <jg1.han <at> samsung.com>
---
 drivers/video/backlight/apple_bl.c |   16 ++++++----------
 1 files changed, 6 insertions(+), 10 deletions(-)

diff --git a/drivers/video/backlight/apple_bl.c b/drivers/video/backlight/apple_bl.c
index ef5ca0d..9236e95 100644
--- a/drivers/video/backlight/apple_bl.c
+++ b/drivers/video/backlight/apple_bl.c
 <at>  <at>  -61,8 +61,7  <at>  <at>  static int intel_chipset_send_intensity(struct backlight_device *bd)
 	int intensity = bd->props.brightness;

 	if (debug)
-		printk(KERN_DEBUG DRIVER "setting brightness to %d\n",
-		       intensity);
+		pr_debug("setting brightness to %d\n", intensity);

 	intel_chipset_set_brightness(intensity);
 	return 0;
 <at>  <at>  -77,8 +76,7  <at>  <at>  static int intel_chipset_get_intensity(struct backlight_device *bd)
 	intensity = inb(0xb3) >> 4;

 	if (debug)
-		printk(KERN_DEBUG DRIVER "read brightness of %d\n",
-		       intensity);
+		pr_debug("read brightness of %d\n", intensity);

 	return intensity;
 }
 <at>  <at>  -108,8 +106,7  <at>  <at>  static int nvidia_chipset_send_intensity(struct backlight_device *bd)
 	int intensity = bd->props.brightness;

 	if (debug)
-		printk(KERN_DEBUG DRIVER "setting brightness to %d\n",
-		       intensity);
+		pr_debug("setting brightness to %d\n", intensity);

 	nvidia_chipset_set_brightness(intensity);
 	return 0;
 <at>  <at>  -124,8 +121,7  <at>  <at>  static int nvidia_chipset_get_intensity(struct backlight_device *bd)
 	intensity = inb(0x52f) >> 4;

 	if (debug)
-		printk(KERN_DEBUG DRIVER "read brightness of %d\n",
-		       intensity);
+		pr_debug("read brightness of %d\n", intensity);

 	return intensity;
 }
 <at>  <at>  -150,7 +146,7  <at>  <at>  static int __devinit apple_bl_add(struct acpi_device *dev)
 	host = pci_get_bus_and_slot(0, 0);

 	if (!host) {
-		printk(KERN_ERR DRIVER "unable to find PCI host\n");
+		pr_err("unable to find PCI host\n");
 		return -ENODEV;
 	}

 <at>  <at>  -162,7 +158,7  <at>  <at>  static int __devinit apple_bl_add(struct acpi_device *dev)
 	pci_dev_put(host);

 	if (!hw_data) {
-		printk(KERN_ERR DRIVER "unknown hardware\n");
+		pr_err("unknown hardware\n");
 		return -ENODEV;
 	}

--

-- 
1.7.1