s3c-fb: CPUFREQ frequency scaling support

Add support for CPU frequency scaling in the S3C24XX video driver.

Signed-off-by: Simtec Linux Team <linux@simtec.co.uk>
Signed-off-by: Ben Dooks <ben@simtec.co.uk>
Cc: Dave Jones <davej@codemonkey.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/drivers/video/s3c2410fb.h b/drivers/video/s3c2410fb.h
index 9a6ba3e..47a17bd 100644
--- a/drivers/video/s3c2410fb.h
+++ b/drivers/video/s3c2410fb.h
@@ -29,8 +29,13 @@
 	enum s3c_drv_type	drv_type;
 	struct s3c2410fb_hw	regs;
 
+	unsigned long		clk_rate;
 	unsigned int		palette_ready;
 
+#ifdef CONFIG_CPU_FREQ
+	struct notifier_block	freq_transition;
+#endif
+
 	/* keep these registers in case we need to re-write palette */
 	u32			palette_buffer[256];
 	u32			pseudo_pal[16];