[ARM] 5028/1: pxafb: fix broken "backward compatibility way" in framebuffer

 configuration

Commit 84f43c308b73a6a12128288721a1007ba4f1a8da "pxafb: introduce register
independent LCD connection type for pxafb" implements compatibility mode
for old style pxafb_mach_info initialization data wrongly, causing the
system to Oops repeatedly - first during probe, then when drawing. Fix it
and make pxafb_decode_mach_info void.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Acked-by: Eric Miao <eric.miao@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

diff --git a/drivers/video/pxafb.c b/drivers/video/pxafb.c
index 3ab6e3d..48aea39 100644 (file)
--- a/drivers/video/pxafb.c
+++ b/drivers/video/pxafb.c
@@ -1301,8 +1301,8 @@ static void pxafb_decode_mode_info(struct pxafb_info *fbi,
        }
 }
 
-static int pxafb_decode_mach_info(struct pxafb_info *fbi,
-                                 struct pxafb_mach_info *inf)
+static void pxafb_decode_mach_info(struct pxafb_info *fbi,
+                                  struct pxafb_mach_info *inf)
 {
        unsigned int lcd_conn = inf->lcd_conn;
 
@@ -1333,7 +1333,7 @@ static int pxafb_decode_mach_info(struct pxafb_info *fbi,
                fbi->lccr0 = inf->lccr0;
                fbi->lccr3 = inf->lccr3;
                fbi->lccr4 = inf->lccr4;
-               return -EINVAL;
+               goto decode_mode;
        }
 
        if (lcd_conn == LCD_MONO_STN_8BPP)
@@ -1343,8 +1343,8 @@ static int pxafb_decode_mach_info(struct pxafb_info *fbi,
        fbi->lccr3 |= (lcd_conn & LCD_BIAS_ACTIVE_LOW) ? LCCR3_OEP : 0;
        fbi->lccr3 |= (lcd_conn & LCD_PCLK_EDGE_FALL)  ? LCCR3_PCP : 0;
 
+decode_mode:
        pxafb_decode_mode_info(fbi, inf->modes, inf->num_modes);
-       return 0;
 }
 
 static struct pxafb_info * __init pxafb_init_fbinfo(struct device *dev)