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Commit 947becd7 authored by Jayant Shekhar's avatar Jayant Shekhar
Browse files

msm:mdss: Add support for show blank sysfs entry 



Currently there is no support for show blank sysfs entry
in mdss. Hence, added this entry to check if panel is
power on or off.

Change-Id: Ifa50bf373590556f88b8f8196353dffefe2d2559
Signed-off-by: default avatarJayant Shekhar <jshekhar@codeaurora.org>
parent 568a7d3d

drivers/video/msm/mdss/mdss_fb.c

+16 −0
Original line number Diff line number Diff line
@@ -242,12 +242,28 @@ static ssize_t mdss_fb_get_split(struct device *dev, 
	return ret;

}



static ssize_t mdss_mdp_show_blank_event(struct device *dev,

		struct device_attribute *attr, char *buf)

{

	struct fb_info *fbi = dev_get_drvdata(dev);

	struct msm_fb_data_type *mfd = (struct msm_fb_data_type *)fbi->par;

	int ret;



	pr_debug("fb%d panel_power_on = %d\n", mfd->index, mfd->panel_power_on);

	ret = scnprintf(buf, PAGE_SIZE, "panel_power_on = %d\n",

						mfd->panel_power_on);



	return ret;

}



static DEVICE_ATTR(msm_fb_type, S_IRUGO, mdss_fb_get_type, NULL);

static DEVICE_ATTR(msm_fb_split, S_IRUGO, mdss_fb_get_split, NULL);

static DEVICE_ATTR(show_blank_event, S_IRUGO, mdss_mdp_show_blank_event, NULL);



static struct attribute *mdss_fb_attrs[] = {

	&dev_attr_msm_fb_type.attr,

	&dev_attr_msm_fb_split.attr,

	&dev_attr_show_blank_event.attr,

	NULL,

};