MLK-10117-4: mxsfb: Add lcdif register config in enable panel function

Sandor Yu · Nitin Garg · commit cd580610ecc6 · 2015-09-17T09:21:14.000-05:00
Lcdif register configuration will lost in dispmix power off,
so register should been configured again when panel power up.

Signed-off-by: Sandor Yu &lt;R01008@freescale.com&gt;
diff --git a/drivers/video/mxsfb.c b/drivers/video/mxsfb.c
@@ -4,7 +4,7 @@
  * This code is based on:
  * Author: Vitaly Wool <vital@embeddedalley.com>
  *
- * Copyright 2008-2014 Freescale Semiconductor, Inc. All Rights Reserved.
+ * Copyright 2008-2015 Freescale Semiconductor, Inc. All Rights Reserved.
  * Copyright 2008 Embedded Alley Solutions, Inc All Rights Reserved.
  *
  * This program is free software; you can redistribute it and/or
@@ -239,6 +239,7 @@ static const struct mxsfb_devdata mxsfb_devdata[] = {
 
 static int mxsfb_map_videomem(struct fb_info *info);
 static int mxsfb_unmap_videomem(struct fb_info *info);
+static int mxsfb_set_par(struct fb_info *fb_info);
 
 /* enable lcdif axi clock */
 static inline void clk_enable_axi(struct mxsfb_info *host)
@@ -515,6 +516,9 @@ static void mxsfb_enable_controller(struct fb_info *fb_info)
 	/* Clean soft reset and clock gate bit if it was enabled  */
 	writel(CTRL_SFTRST | CTRL_CLKGATE, host->base + LCDC_CTRL + REG_CLR);
 
+	/* reconfigure the lcdif after */
+	mxsfb_set_par(&host->fb_info);
+
 	writel(CTRL2_OUTSTANDING_REQS__REQ_16,
 		host->base + LCDC_V4_CTRL2 + REG_SET);
 
