[PATCH] ARM: IntegratorCP: Fix CLCD MUX selection values

The documentation on these values seems to be rather wrong.
These values have been determined by mere trial and error.

Signed-off-by: Russell King <rmk@arm.linux.org.uk>

arch/arm/mach-integrator/integrator_cp.c

@@ -420,7 +420,22 @@ static struct clcd_panel vga = {
  */
 static void cp_clcd_enable(struct clcd_fb *fb)
 {
-	cm_control(CM_CTRL_LCDMUXSEL_MASK, CM_CTRL_LCDMUXSEL_VGA);
+	u32 val;
+
+	if (fb->fb.var.bits_per_pixel <= 8)
+		val = CM_CTRL_LCDMUXSEL_VGA_8421BPP;
+	else if (fb->fb.var.bits_per_pixel <= 16)
+		val = CM_CTRL_LCDMUXSEL_VGA_16BPP;
+	else
+		val = 0; /* no idea for this, don't trust the docs */
+
+	cm_control(CM_CTRL_LCDMUXSEL_MASK|
+		   CM_CTRL_LCDEN0|
+		   CM_CTRL_LCDEN1|
+		   CM_CTRL_STATIC1|
+		   CM_CTRL_STATIC2|
+		   CM_CTRL_STATIC|
+		   CM_CTRL_n24BITEN, val);
 }
 
 static unsigned long framesize = SZ_1M;

include/asm-arm/arch-integrator/cm.h

@@ -24,9 +24,9 @@ void cm_control(u32, u32);
 #define CM_CTRL_LCDBIASDN		(1 << 10)
 #define CM_CTRL_LCDMUXSEL_MASK		(7 << 11)
 #define CM_CTRL_LCDMUXSEL_GENLCD	(1 << 11)
-#define CM_CTRL_LCDMUXSEL_SHARPLCD1	(3 << 11)
-#define CM_CTRL_LCDMUXSEL_SHARPLCD2	(4 << 11)
-#define CM_CTRL_LCDMUXSEL_VGA		(7 << 11)
+#define CM_CTRL_LCDMUXSEL_VGA_16BPP	(2 << 11)
+#define CM_CTRL_LCDMUXSEL_SHARPLCD	(3 << 11)
+#define CM_CTRL_LCDMUXSEL_VGA_8421BPP	(4 << 11)
 #define CM_CTRL_LCDEN0			(1 << 14)
 #define CM_CTRL_LCDEN1			(1 << 15)
 #define CM_CTRL_STATIC1			(1 << 16)