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Commit e42a2c34 authored by Shivaraj Shetty's avatar Shivaraj Shetty
Browse files

msm: mdss: Support for thermal mitigation in mdss 



Add support to notify HAL to avoid mdp composition so as to
reduce bw voting and to turn off clock to help thermal
mitigation when needed.

Change-Id: If86f49deae220a2e7ee2db224f010269cbbba7c4
Signed-off-by: default avatarShivaraj Shetty <shivaraj@codeaurora.org>
parent 286b0d28

drivers/video/msm/mdss/mdss_fb.c

+37 −0
Original line number Diff line number Diff line
@@ -355,6 +355,40 @@ static void mdss_fb_get_split(struct msm_fb_data_type *mfd) 
			mfd->split_fb_left, mfd->split_fb_right);

}



static ssize_t mdss_fb_get_thermal_level(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;

	int ret;



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

						mfd->thermal_level);



	return ret;

}



static ssize_t mdss_fb_set_thermal_level(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;

	int rc = 0;

	int thermal_level = 0;



	rc = kstrtoint(buf, 10, &thermal_level);

	if (rc) {

		pr_err("kstrtoint failed. rc=%d\n", rc);

		return rc;

	}



	pr_debug("Thermal level set to %d\n", thermal_level);

	mfd->thermal_level = thermal_level;

	sysfs_notify(&mfd->fbi->dev->kobj, NULL, "msm_fb_thermal_level");



	return count;

}



static ssize_t mdss_mdp_show_blank_event(struct device *dev,

		struct device_attribute *attr, char *buf)

{
@@ -553,6 +587,8 @@ static DEVICE_ATTR(idle_notify, S_IRUGO, mdss_fb_get_idle_notify, NULL); 
static DEVICE_ATTR(msm_fb_panel_info, S_IRUGO, mdss_fb_get_panel_info, NULL);

static DEVICE_ATTR(msm_fb_src_split_info, S_IRUGO, mdss_fb_get_src_split_info,

	NULL);

static DEVICE_ATTR(msm_fb_thermal_level, S_IRUGO | S_IWUSR,

	mdss_fb_get_thermal_level, mdss_fb_set_thermal_level);



static struct attribute *mdss_fb_attrs[] = {

	&dev_attr_msm_fb_type.attr,
@@ -562,6 +598,7 @@ static struct attribute *mdss_fb_attrs[] = { 
	&dev_attr_idle_notify.attr,

	&dev_attr_msm_fb_panel_info.attr,

	&dev_attr_msm_fb_src_split_info.attr,

	&dev_attr_msm_fb_thermal_level.attr,

	NULL,

};

drivers/video/msm/mdss/mdss_fb.h

+1 −0
Original line number Diff line number Diff line
@@ -258,6 +258,7 @@ struct msm_fb_data_type { 
	bool mdss_fb_split_stored;



	u32 wait_for_kickoff;

	u32 thermal_level;

};



static inline void mdss_fb_update_notify_update(struct msm_fb_data_type *mfd)