ARM i.MX23/28: Add framebuffer device support

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Shawn Guo <shawn.guo@freescale.com>
diff --git a/arch/arm/mach-mxs/clock-mx23.c b/arch/arm/mach-mxs/clock-mx23.c
index 38ee1b1..2415b33 100644
--- a/arch/arm/mach-mxs/clock-mx23.c
+++ b/arch/arm/mach-mxs/clock-mx23.c
@@ -452,6 +452,7 @@
 	_REGISTER_CLOCK("mxs-pwm.2", NULL, pwm_clk)
 	_REGISTER_CLOCK("mxs-pwm.3", NULL, pwm_clk)
 	_REGISTER_CLOCK("mxs-pwm.4", NULL, pwm_clk)
+	_REGISTER_CLOCK("imx23-fb", NULL, lcdif_clk)
 };
 
 static int clk_misc_init(void)