Commit 4f3e2664 authored by Eric Miao's avatar Eric Miao Committed by Russell King
Browse files

[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: default avatarEric Miao <eric.miao@marvell.com>
Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
parent 9a1ac7e4

drivers/video/pxafb.c

+36 −26
Original line number Diff line number Diff line
@@ -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. */

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,

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