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fb: imxfb: Use dev_add_param_int for alpha parameter 

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit is contained in:
Sascha Hauer 2013-04-06 11:49:25 +02:00
parent fb3fcaf2cc
commit 196345d3fb
1 changed files with 9 additions and 17 deletions
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26
drivers/video/imx.c
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@ -158,6 +158,8 @@ struct imxfb_info {
void (*enable)(int enable); void (*enable)(int enable);
unsigned int alpha;
struct fb_info overlay; struct fb_info overlay;
}; };
@ -421,30 +423,20 @@ static struct fb_ops imxfb_overlay_ops = {
.fb_disable = imxfb_overlay_disable_controller, .fb_disable = imxfb_overlay_disable_controller,
}; };
static int imxfb_alpha_set(struct device_d *dev, struct param_d *param, static int imxfb_alpha_set(struct param_d *param, void *priv)
const char *val)
{ {
struct fb_info *overlay = dev->priv; struct fb_info *overlay = priv;
struct imxfb_info *fbi = overlay->priv; struct imxfb_info *fbi = overlay->priv;
int alpha;
char alphastr[16];
unsigned int tmp; unsigned int tmp;
if (!val) if (fbi->alpha > 0xff)
return dev_param_set_generic(dev, param, NULL); fbi->alpha = 0xff;
alpha = simple_strtoul(val, NULL, 0);
alpha &= 0xff;
tmp = readl(fbi->regs + LCDC_LGWCR); tmp = readl(fbi->regs + LCDC_LGWCR);
tmp &= ~LGWCR_GWAV(0xff); tmp &= ~LGWCR_GWAV(0xff);
tmp |= LGWCR_GWAV(alpha); tmp |= LGWCR_GWAV(fbi->alpha);
writel(tmp , fbi->regs + LCDC_LGWCR); writel(tmp , fbi->regs + LCDC_LGWCR);
sprintf(alphastr, "%d", alpha);
dev_param_set_generic(dev, param, alphastr);
return 0; return 0;
} }
@ -508,8 +500,8 @@ static int imxfb_register_overlay(struct imxfb_info *fbi, void *fb)
return ret; return ret;
} }
dev_add_param(&overlay->dev, "alpha", imxfb_alpha_set, NULL, 0); dev_add_param_int(&overlay->dev, "alpha", imxfb_alpha_set,
dev_set_param(&overlay->dev, "alpha", "0"); NULL, &fbi->alpha, "%u", overlay);
return 0; return 0;
} }