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Commit e41f1a98 authored by Alexey Charkov's avatar Alexey Charkov Committed by Paul Mundt
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fbdev: Implement simple blanking in pseudocolor modes for vt8500lcdfb 



Implement simple blanking in pseudocolor modes for vt8500lcdfb

This follows the style of some other in-tree drivers by just setting
the hardware palette colors to all black. True Color modes are not
affected, but this at least allows to run xf86-video-fbdev without
errors due to blanking being unimplemented.

Signed-off-by: default avatarAlexey Charkov <alchark@gmail.com>
Signed-off-by: default avatarPaul Mundt <lethal@linux-sh.org>
parent e3d5fb71

drivers/video/vt8500lcdfb.c

+28 −0
Original line number Diff line number Diff line
@@ -215,6 +215,33 @@ static int vt8500lcd_pan_display(struct fb_var_screeninfo *var, 
	return 0;

}



/*

 * vt8500lcd_blank():

 *	Blank the display by setting all palette values to zero.  Note,

 * 	True Color modes do not really use the palette, so this will not

 *      blank the display in all modes.

 */

static int vt8500lcd_blank(int blank, struct fb_info *info)

{

	int i;



	switch (blank) {

	case FB_BLANK_POWERDOWN:

	case FB_BLANK_VSYNC_SUSPEND:

	case FB_BLANK_HSYNC_SUSPEND:

	case FB_BLANK_NORMAL:

		if (info->fix.visual == FB_VISUAL_PSEUDOCOLOR ||

		    info->fix.visual == FB_VISUAL_STATIC_PSEUDOCOLOR)

			for (i = 0; i < 256; i++)

				vt8500lcd_setcolreg(i, 0, 0, 0, 0, info);

	case FB_BLANK_UNBLANK:

		if (info->fix.visual == FB_VISUAL_PSEUDOCOLOR ||

		    info->fix.visual == FB_VISUAL_STATIC_PSEUDOCOLOR)

			fb_set_cmap(&info->cmap, info);

	}

	return 0;

}



static struct fb_ops vt8500lcd_ops = {

	.owner		= THIS_MODULE,

	.fb_set_par	= vt8500lcd_set_par,
@@ -225,6 +252,7 @@ static struct fb_ops vt8500lcd_ops = { 
	.fb_sync	= wmt_ge_sync,

	.fb_ioctl	= vt8500lcd_ioctl,

	.fb_pan_display	= vt8500lcd_pan_display,

	.fb_blank	= vt8500lcd_blank,

};



static irqreturn_t vt8500lcd_handle_irq(int irq, void *dev_id)