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drivers/input/touchscreen: synaptics_dsx2: Add FB notifier 

Change-Id: Ie289bd714b033790dcb06b51ddfcbbe419af1d8a
This commit is contained in:
Luca Stefani 2017-02-27 14:58:40 +01:00
parent 9649a17752
commit 7a4b2283bc
2 changed files with 89 additions and 33 deletions
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112
drivers/input/touchscreen/synaptics_dsx2/synaptics_i2c_rmi.c
View File

@ -30,9 +30,6 @@
#include <linux/regulator/consumer.h>
#include <linux/of.h>
#include <linux/of_gpio.h>
#ifdef CONFIG_HAS_EARLYSUSPEND
#include <linux/earlysuspend.h>
#endif
//#include <linux/sec_batt.h>
//#include <plat/gpio-cfg.h>
@ -58,25 +55,27 @@ static int synaptics_rmi4_start_device(struct synaptics_rmi4_data *rmi4_data);
static void synaptics_rmi4_sensor_sleep(struct synaptics_rmi4_data *rmi4_data);
static void synaptics_rmi4_sensor_wake(struct synaptics_rmi4_data *rmi4_data);
#endif
#ifdef CONFIG_HAS_EARLYSUSPEND
static ssize_t synaptics_rmi4_full_pm_cycle_show(struct device *dev,
struct device_attribute *attr, char *buf);
static ssize_t synaptics_rmi4_full_pm_cycle_store(struct device *dev,
struct device_attribute *attr, const char *buf, size_t count);
#ifdef CONFIG_PM
#if defined(CONFIG_FB)
static int fb_notifier_callback(struct notifier_block *self,
unsigned long event, void *data);
#elif defined(CONFIG_HAS_EARLYSUSPEND)
static void synaptics_rmi4_early_suspend(struct early_suspend *h);
static void synaptics_rmi4_late_resume(struct early_suspend *h);
#else
#endif
static int synaptics_rmi4_suspend(struct device *dev);
static int synaptics_rmi4_resume(struct device *dev);
#endif
static ssize_t synaptics_rmi4_full_pm_cycle_show(struct device *dev,
struct device_attribute *attr, char *buf);
static ssize_t synaptics_rmi4_full_pm_cycle_store(struct device *dev,
struct device_attribute *attr, const char *buf, size_t count);
#ifdef PROXIMITY_MODE
static void synaptics_rmi4_f51_finger_timer(unsigned long data);
@ -110,10 +109,8 @@ static ssize_t synaptics_rmi4_0dbutton_store(struct device *dev,
#ifdef CONFIG_HAS_EARLYSUSPEND
static DEVICE_ATTR(full_pm_cycle, (S_IRUGO | S_IWUSR | S_IWGRP),
synaptics_rmi4_full_pm_cycle_show, synaptics_rmi4_full_pm_cycle_store);
#endif
#ifdef PROXIMITY_MODE
static DEVICE_ATTR(proximity_enables, (S_IRUGO | S_IWUSR | S_IWGRP),
synaptics_rmi4_f51_enables_show, synaptics_rmi4_f51_enables_store);
@ -125,9 +122,7 @@ static DEVICE_ATTR(flashprog, S_IRUGO, synaptics_rmi4_f01_flashprog_show, NULL);
static DEVICE_ATTR(0dbutton, (S_IRUGO | S_IWUSR | S_IWGRP), synaptics_rmi4_0dbutton_show, synaptics_rmi4_0dbutton_store);
static struct attribute *attrs[] = {
#ifdef CONFIG_HAS_EARLYSUSPEND
&dev_attr_full_pm_cycle.attr,
#endif
#ifdef PROXIMITY_MODE
&dev_attr_proximity_enables.attr,
#endif
@ -144,7 +139,6 @@ static struct attribute_group attr_group = {
.attrs = attrs,
};
#ifdef CONFIG_HAS_EARLYSUSPEND
static ssize_t synaptics_rmi4_full_pm_cycle_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
@ -167,6 +161,35 @@ static ssize_t synaptics_rmi4_full_pm_cycle_store(struct device *dev,
return count;
}
#if defined(CONFIG_FB)
static void configure_sleep(struct synaptics_rmi4_data *rmi4_data)
{
int retval = 0;
rmi4_data->fb_notif.notifier_call = fb_notifier_callback;
retval = fb_register_client(&rmi4_data->fb_notif);
if (retval)
dev_err(&rmi4_data->i2c_client->dev,
"Unable to register fb_notifier: %d\n", retval);
return;
}
#elif defined(CONFIG_HAS_EARLYSUSPEND)
static void configure_sleep(struct synaptics_rmi4_data *rmi4_data)
{
rmi4_data->early_suspend.level = EARLY_SUSPEND_LEVEL_BLANK_SCREEN + 1;
rmi4_data->early_suspend.suspend = synaptics_rmi4_early_suspend;
rmi4_data->early_suspend.resume = synaptics_rmi4_late_resume;
register_early_suspend(&rmi4_data->early_suspend);
return;
}
#else
static void configure_sleep(struct synaptics_rmi4_data *rmi4_data)
{
return;
}
#endif
#ifdef PRINT_DEBUG_INFO
@ -4095,12 +4118,7 @@ err_tsp_reboot:
goto err_fw_update;
}
#ifdef CONFIG_HAS_EARLYSUSPEND
rmi4_data->early_suspend.level = EARLY_SUSPEND_LEVEL_BLANK_SCREEN - 1;
rmi4_data->early_suspend.suspend = synaptics_rmi4_early_suspend;
rmi4_data->early_suspend.resume = synaptics_rmi4_late_resume;
register_early_suspend(&rmi4_data->early_suspend);
#endif
configure_sleep(rmi4_data);
#if defined RESET_BY_WORKQUEUE
INIT_DELAYED_WORK(&rmi4_data->work_reset, reset_func);
@ -4187,9 +4205,13 @@ static int synaptics_rmi4_remove(struct i2c_client *client)
struct synaptics_rmi4_device_info *rmi;
rmi = &(rmi4_data->rmi4_mod_info);
#ifdef CONFIG_HAS_EARLYSUSPEND
#if defined(CONFIG_FB)
fb_unregister_client(&rmi4_data->fb_notif);
#elif defined(CONFIG_HAS_EARLYSUSPEND)
unregister_early_suspend(&rmi4_data->early_suspend);
#endif
if(rmi4_data->resetting == true)
cancel_delayed_work_sync(&rmi4_data->work_reset);
synaptics_rmi4_irq_enable(rmi4_data, false);
@ -4474,9 +4496,36 @@ static void synaptics_rmi4_input_close(struct input_dev *dev)
}
#ifdef CONFIG_PM
#ifdef CONFIG_HAS_EARLYSUSPEND
#define synaptics_rmi4_suspend NULL
#define synaptics_rmi4_resume NULL
#if defined(CONFIG_FB)
static int fb_notifier_callback(struct notifier_block *self,
unsigned long event, void *data)
{
struct fb_event *evdata = data;
int *blank;
struct synaptics_rmi4_data *rmi4_data =
container_of(self, struct synaptics_rmi4_data, fb_notif);
if (evdata && evdata->data && rmi4_data
&& rmi4_data->i2c_client && event == FB_EVENT_BLANK) {
blank = evdata->data;
switch (*blank) {
case FB_BLANK_UNBLANK:
case FB_BLANK_NORMAL:
case FB_BLANK_VSYNC_SUSPEND:
case FB_BLANK_HSYNC_SUSPEND:
synaptics_rmi4_resume(
&(rmi4_data->input_dev->dev));
break;
default:
case FB_BLANK_POWERDOWN:
synaptics_rmi4_suspend(
&(rmi4_data->input_dev->dev));
}
}
return 0;
}
#elif defined(CONFIG_HAS_EARLYSUSPEND)
/**
* synaptics_rmi4_early_suspend()
@ -4537,7 +4586,7 @@ static void synaptics_rmi4_late_resume(struct early_suspend *h)
return;
}
#else
#endif
/**
* synaptics_rmi4_suspend()
@ -4595,7 +4644,7 @@ static int synaptics_rmi4_resume(struct device *dev)
} else
#endif
{
if (synaptics_rmi4_start_device(rmi4_data))
if (synaptics_rmi4_start_device(rmi4_data) < 0)
tsp_debug_err(true, &rmi4_data->i2c_client->dev,
"%s: Failed to start device\n", __func__);
}
@ -4605,11 +4654,12 @@ static int synaptics_rmi4_resume(struct device *dev)
return 0;
}
#endif
static const struct dev_pm_ops synaptics_rmi4_dev_pm_ops = {
#if (!defined(CONFIG_FB) && !defined(CONFIG_HAS_EARLYSUSPEND))
.suspend = synaptics_rmi4_suspend,
.resume = synaptics_rmi4_resume,
#endif
};
#endif

10
drivers/input/touchscreen/synaptics_dsx2/synaptics_i2c_rmi.h
View File

@ -25,9 +25,13 @@
#include <linux/i2c/synaptics_rmi.h>
#include <linux/cdev.h>
#ifdef CONFIG_HAS_EARLYSUSPEND
#if defined(CONFIG_FB)
#include <linux/notifier.h>
#include <linux/fb.h>
#elif defined(CONFIG_HAS_EARLYSUSPEND)
#include <linux/earlysuspend.h>
#endif
#ifdef CONFIG_SEC_DEBUG_TSP_LOG
#include <linux/sec_debug.h>
#endif
@ -1375,7 +1379,9 @@ struct synaptics_rmi4_data {
struct mutex rmi4_io_ctrl_mutex;
struct mutex rmi4_reflash_mutex;
struct timer_list f51_finger_timer;
#ifdef CONFIG_HAS_EARLYSUSPEND
#if defined(CONFIG_FB)
struct notifier_block fb_notif;
#elif defined(CONFIG_HAS_EARLYSUSPEND)
struct early_suspend early_suspend;
#endif
const char *firmware_name;