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ARM: 6281/1: video/imxfb.c: allow usage without BACKLIGHT_CLASS_DEVICE

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From: Eric Bénard <eric@eukrea.com>

This fixes the following build failure:

	drivers/built-in.o: In function `imxfb_probe': mxcmmc.c:(.init.text+0xd04): undefined reference to `backlight_device_register'
	drivers/built-in.o: In function `imxfb_remove': mxcmmc.c:(.devexit.text+0x44): undefined reference to `backlight_device_unregister'

that was introduced by

	7a2bb23 (imxfb: add pwmr controlled backlight support)

Signed-off-by: Eric Bénard <eric@eukrea.com>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Eric Bénard 2010-08-02 08:39:55 +01:00 committed by Russell King
parent 868003ca7a
commit 81ef806163
1 changed files with 17 additions and 2 deletions
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19
drivers/video/imxfb.c
View file

@ -40,6 +40,12 @@
*/
#define DEBUG_VAR 1
#if defined(CONFIG_BACKLIGHT_CLASS_DEVICE) || \
(defined(CONFIG_BACKLIGHT_CLASS_DEVICE_MODULE) && \
defined(CONFIG_FB_IMX_MODULE))
#define PWMR_BACKLIGHT_AVAILABLE
#endif
#define DRIVER_NAME "imx-fb"
#define LCDC_SSA 0x00
@ -175,7 +181,9 @@ struct imxfb_info {
struct imx_fb_videomode *mode;
int num_modes;
#ifdef PWMR_BACKLIGHT_AVAILABLE
struct backlight_device *bl;
#endif
void (*lcd_power)(int);
void (*backlight_power)(int);
@ -450,8 +458,7 @@ static int imxfb_set_par(struct fb_info *info)
return 0;
}
#ifdef PWMR_BACKLIGHT_AVAILABLE
static int imxfb_bl_get_brightness(struct backlight_device *bl)
{
struct imxfb_info *fbi = bl_get_data(bl);
@ -516,6 +523,7 @@ static void imxfb_exit_backlight(struct imxfb_info *fbi)
if (fbi->bl)
backlight_device_unregister(fbi->bl);
}
#endif
static void imxfb_enable_controller(struct imxfb_info *fbi)
{
@ -647,6 +655,9 @@ static int imxfb_activate_var(struct fb_var_screeninfo *var, struct fb_info *inf
fbi->regs + LCDC_SIZE);
writel(fbi->pcr, fbi->regs + LCDC_PCR);
#ifndef PWMR_BACKLIGHT_AVAILABLE
writel(fbi->pwmr, fbi->regs + LCDC_PWMR);
#endif
writel(fbi->lscr1, fbi->regs + LCDC_LSCR1);
writel(fbi->dmacr, fbi->regs + LCDC_DMACR);
@ -847,7 +858,9 @@ static int __init imxfb_probe(struct platform_device *pdev)
imxfb_enable_controller(fbi);
fbi->pdev = pdev;
#ifdef PWMR_BACKLIGHT_AVAILABLE
imxfb_init_backlight(fbi);
#endif
return 0;
@ -885,7 +898,9 @@ static int __devexit imxfb_remove(struct platform_device *pdev)
imxfb_disable_controller(fbi);
#ifdef PWMR_BACKLIGHT_AVAILABLE
imxfb_exit_backlight(fbi);
#endif
unregister_framebuffer(info);
pdata = pdev->dev.platform_data;