video: ipu: fix debug and comment

- fix debug pixel clk display and add unit
- fix some comments

Cc: Stefano Babic <sbabic@denx.de>
Signed-off-by: Jeroen Hofstee <jeroen@myspectrum.nl>
diff --git a/drivers/video/mxc_ipuv3_fb.c b/drivers/video/mxc_ipuv3_fb.c
index f75d770..b20c19c 100644
--- a/drivers/video/mxc_ipuv3_fb.c
+++ b/drivers/video/mxc_ipuv3_fb.c
@@ -258,8 +258,7 @@
 	if (fbi->var.sync & FB_SYNC_CLK_IDLE_EN)
 		sig_cfg.clkidle_en = 1;
 
-	debug("pixclock = %ul Hz\n",
-		(u32) (PICOS2KHZ(fbi->var.pixclock) * 1000UL));
+	debug("pixclock = %lu Hz\n", PICOS2KHZ(fbi->var.pixclock) * 1000UL);
 
 	if (ipu_init_sync_panel(mxc_fbi->ipu_di,
 				(PICOS2KHZ(fbi->var.pixclock)) * 1000UL,
@@ -486,7 +485,7 @@
 
 /*
  * Probe routine for the framebuffer driver. It is called during the
- * driver binding process.      The following functions are performed in
+ * driver binding process. The following functions are performed in
  * this routine: Framebuffer initialization, Memory allocation and
  * mapping, Framebuffer registration, IPU initialization.
  *
@@ -542,7 +541,7 @@
 
 	mxcfb_set_fix(fbi);
 
-	/* alocate fb first */
+	/* allocate fb first */
 	if (mxcfb_map_video_memory(fbi) < 0)
 		return -ENOMEM;