[ARM] pxafb: fix the warning of incorrect lccr when lcd_conn is specified

The newly introduced "lcd_conn" field for connected LCD panel type will
cause the original code to generate the warnings of incorrect lccr*.
This is unnecessary since well encoded LCD_* flags will not generate
incorrect combinition of lccr* bits. Skip the check if "lcd_conn" is
specified.

Signed-off-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 fa108da..9720449 100644 (file)
--- a/drivers/video/pxafb.c
+++ b/drivers/video/pxafb.c
@@ -1677,53 +1677,63 @@ MODULE_PARM_DESC(options, "LCD parameters (see Documentation/fb/pxafb.txt)");
 #define pxafb_setup_options()          (0)
 #endif
 
-static int __devinit pxafb_probe(struct platform_device *dev)
-{
-       struct pxafb_info *fbi;
-       struct pxafb_mach_info *inf;
-       struct resource *r;
-       int irq, ret;
-
-       dev_dbg(&dev->dev, "pxafb_probe\n");
-
-       inf = dev->dev.platform_data;
-       ret = -ENOMEM;
-       fbi = NULL;
-       if (!inf)
-               goto failed;
-
-       ret = pxafb_parse_options(&dev->dev, g_options);
-       if (ret < 0)
-               goto failed;
-
 #ifdef DEBUG_VAR
-       /* Check for various illegal bit-combinations. Currently only
-        * a warning is given. */
+/* Check for various illegal bit-combinations. Currently only
+ * a warning is given. */
+static void __devinit pxafb_check_options(struct device *dev,
+                                         struct pxafb_mach_info *inf)
+{
+       if (inf->lcd_conn)
+               return;
 
        if (inf->lccr0 & LCCR0_INVALID_CONFIG_MASK)
-               dev_warn(&dev->dev, "machine LCCR0 setting contains "
+               dev_warn(dev, "machine LCCR0 setting contains "
                                "illegal bits: %08x\n",
                        inf->lccr0 & LCCR0_INVALID_CONFIG_MASK);
        if (inf->lccr3 & LCCR3_INVALID_CONFIG_MASK)
-               dev_warn(&dev->dev, "machine LCCR3 setting contains "
+               dev_warn(dev, "machine LCCR3 setting contains "
                                "illegal bits: %08x\n",
                        inf->lccr3 & LCCR3_INVALID_CONFIG_MASK);
        if (inf->lccr0 & LCCR0_DPD &&
            ((inf->lccr0 & LCCR0_PAS) != LCCR0_Pas ||
             (inf->lccr0 & LCCR0_SDS) != LCCR0_Sngl ||
             (inf->lccr0 & LCCR0_CMS) != LCCR0_Mono))
-               dev_warn(&dev->dev, "Double Pixel Data (DPD) mode is "
+               dev_warn(dev, "Double Pixel Data (DPD) mode is "
                                "only valid in passive mono"
                                " single panel mode\n");
        if ((inf->lccr0 & LCCR0_PAS) == LCCR0_Act &&
            (inf->lccr0 & LCCR0_SDS) == LCCR0_Dual)
-               dev_warn(&dev->dev, "Dual panel only valid in passive mode\n");
+               dev_warn(dev, "Dual panel only valid in passive mode\n");
        if ((inf->lccr0 & LCCR0_PAS) == LCCR0_Pas &&
             (inf->modes->upper_margin || inf->modes->lower_margin))
-               dev_warn(&dev->dev, "Upper and lower margins must be 0 in "
+               dev_warn(dev, "Upper and lower margins must be 0 in "
                                "passive mode\n");
+}
+#else
+#define pxafb_check_options(...)       do {} while (0)
 #endif
 
+static int __devinit pxafb_probe(struct platform_device *dev)
+{
+       struct pxafb_info *fbi;
+       struct pxafb_mach_info *inf;
+       struct resource *r;
+       int irq, ret;
+
+       dev_dbg(&dev->dev, "pxafb_probe\n");
+
+       inf = dev->dev.platform_data;
+       ret = -ENOMEM;
+       fbi = NULL;
+       if (!inf)
+               goto failed;
+
+       ret = pxafb_parse_options(&dev->dev, g_options);
+       if (ret < 0)
+               goto failed;
+
+       pxafb_check_options(&dev->dev, inf);
+
        dev_dbg(&dev->dev, "got a %dx%dx%d LCD\n",
                        inf->modes->xres,
                        inf->modes->yres,