[PATCH 06/10] fb i.MX23/28: add platform data hook to enable backlight

[Sascha Hauer]

Signed-off-by: Sascha Hauer <s.hauer at pengutronix.de>
---
 arch/arm/mach-stm/include/mach/fb.h |    2 ++
 drivers/video/stm.c                 |    6 ++++++
 2 files changed, 8 insertions(+), 0 deletions(-)

diff --git a/arch/arm/mach-stm/include/mach/fb.h b/arch/arm/mach-stm/include/mach/fb.h
index 2eade76..3c53f1a 100644
--- a/arch/arm/mach-stm/include/mach/fb.h
+++ b/arch/arm/mach-stm/include/mach/fb.h
@@ -40,6 +40,8 @@ struct imx_fb_videomode {
 
 	void *fixed_screen;	/**< if != NULL use this as framebuffer memory */
 	unsigned fixed_screen_size; /**< framebuffer memory size for fixed_screen */
+
+	void (*enable)(int enable); /**< hook to enable backlight */
 };
 
 #endif /* __MACH_FB_H */
diff --git a/drivers/video/stm.c b/drivers/video/stm.c
index fc90b6a..8d6361e 100644
--- a/drivers/video/stm.c
+++ b/drivers/video/stm.c
@@ -255,6 +255,9 @@ static void stmfb_enable_controller(struct fb_info *fb_info)
 	writel(CTRL1_FIFO_CLEAR, fbi->base + HW_LCDIF_CTRL1 + BIT_CLR);
 	/* start the engine right now */
 	writel(CTRL_RUN, fbi->base + HW_LCDIF_CTRL + BIT_SET);
+
+	if (fbi->pdata->enable)
+		fbi->pdata->enable(1);
 }
 
 static void stmfb_disable_controller(struct fb_info *fb_info)
@@ -263,6 +266,9 @@ static void stmfb_disable_controller(struct fb_info *fb_info)
 	unsigned loop;
 	uint32_t reg;
 
+	if (fbi->pdata->enable)
+		fbi->pdata->enable(0);
+
 	/*
 	 * Even if we disable the controller here, it will still continue
 	 * until its FIFOs are running out of data
-- 
1.7.2.3