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Commit fc807704 authored by Ping Li's avatar Ping Li
Browse files

msm: mdss: Create sysfs node for partial update state 



Create a sysfs node for partial update state. This dyn_pu sysfs node will
be used to show whether partial update feature is enabled or not,
so the we can dynamically enable/disable post processing features
accordingly.

Change-Id: I7012e7830575942299ae07c956eb27244e622365
Signed-off-by: default avatarPing Li <pingli@codeaurora.org>
parent 51333763

drivers/video/msm/mdss/mdss_mdp.h

+1 −0
Original line number Diff line number Diff line
@@ -531,6 +531,7 @@ struct mdss_overlay_private { 
	struct list_head bufs_freelist;



	int ad_state;

	int dyn_pu_state;



	bool handoff;

	u32 splash_mem_addr;

drivers/video/msm/mdss/mdss_mdp_overlay.c

+38 −0
Original line number Diff line number Diff line
@@ -2494,14 +2494,51 @@ static ssize_t mdss_mdp_ad_store(struct device *dev, 
	return count;

}



static ssize_t mdss_mdp_dyn_pu_show(struct device *dev,

		struct device_attribute *attr, char *buf)

{

	struct fb_info *fbi = dev_get_drvdata(dev);

	struct msm_fb_data_type *mfd = fbi->par;

	struct mdss_overlay_private *mdp5_data = mfd_to_mdp5_data(mfd);

	int ret, state;



	state = (mdp5_data->dyn_pu_state >= 0) ? mdp5_data->dyn_pu_state : -1;



	ret = scnprintf(buf, PAGE_SIZE, "%d", state);



	return ret;

}



static ssize_t mdss_mdp_dyn_pu_store(struct device *dev,

		struct device_attribute *attr, const char *buf, size_t count)

{

	struct fb_info *fbi = dev_get_drvdata(dev);

	struct msm_fb_data_type *mfd = fbi->par;

	struct mdss_overlay_private *mdp5_data = mfd_to_mdp5_data(mfd);

	int ret, dyn_pu;



	ret = kstrtoint(buf, 10, &dyn_pu);

	if (ret) {

		pr_err("Invalid input for partial udpate: ret = %d\n", ret);

		return ret;

	}



	mdp5_data->dyn_pu_state = dyn_pu;

	sysfs_notify(&dev->kobj, NULL, "dyn_pu");



	return count;

}



static DEVICE_ATTR(vsync_event, S_IRUGO, mdss_mdp_vsync_show_event, NULL);

static DEVICE_ATTR(ad, S_IRUGO | S_IWUSR | S_IWGRP, mdss_mdp_ad_show,

	mdss_mdp_ad_store);

static DEVICE_ATTR(dyn_pu, S_IRUGO | S_IWUSR | S_IWGRP, mdss_mdp_dyn_pu_show,

	mdss_mdp_dyn_pu_store);



static struct attribute *mdp_overlay_sysfs_attrs[] = {

	&dev_attr_vsync_event.attr,

	&dev_attr_ad.attr,

	&dev_attr_dyn_pu.attr,

	NULL,

};
@@ -4400,6 +4437,7 @@ int mdss_mdp_overlay_init(struct msm_fb_data_type *mfd) 
			rc = 0;

		}

	}

	mdp5_data->dyn_pu_state = mfd->panel_info->partial_update_enabled;



	if (mdss_mdp_pp_overlay_init(mfd))

		pr_warn("Failed to initialize pp overlay data.\n");