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input: touchscreen: wacom_w9013: support irq wakeup in idle mode

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Signed-off-by: Weixin Zhou <zwx@rock-chips.com>
Change-Id: I8703e6113f6ad7557127f2dbbe2da625658061ad
This commit is contained in:
Weixin Zhou
2021-01-16 14:58:07 +08:00
committed by Tao Huang
parent 57f68fafbc
commit 053d3b88f9
1 changed files with 35 additions and 21 deletions
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56
drivers/input/touchscreen/wacom_w9013.c
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@@ -23,6 +23,7 @@
#include <asm/unaligned.h>
#include <linux/notifier.h>
#include "tp_suspend.h"
//#define ORIGIN_COORD
@@ -78,7 +79,9 @@ struct wacom_i2c {
u8 data[WACOM_QUERY_SIZE];
bool prox;
int tool;
struct tp_device tp;
};
static int get_hid_desc(struct i2c_client *client,
struct hid_descriptor *hid_desc)
{
@@ -178,6 +181,8 @@ static irqreturn_t wacom_i2c_irq(int irq, void *dev_id)
unsigned char tsw, f1, f2, ers;
int error;
if (device_can_wakeup(&wac_i2c->client->dev))
pm_stay_awake(&wac_i2c->client->dev);
error = i2c_master_recv(wac_i2c->client,
wac_i2c->data, sizeof(wac_i2c->data));
if (error < 0)
@@ -217,6 +222,9 @@ static irqreturn_t wacom_i2c_irq(int irq, void *dev_id)
input_sync(input);
out:
if (device_can_wakeup(&wac_i2c->client->dev))
pm_relax(&wac_i2c->client->dev);
return IRQ_HANDLED;
}
@@ -238,6 +246,26 @@ static void wacom_i2c_close(struct input_dev *dev)
disable_irq(client->irq);
}
static int __maybe_unused wacom_i2c_suspend(struct tp_device *tp_d)
{
struct wacom_i2c *wac_i2c = container_of(tp_d, struct wacom_i2c, tp);
dev_dbg(&wac_i2c->client->dev, "%s\n", __func__);
disable_irq(wac_i2c->client->irq);
return 0;
}
static int __maybe_unused wacom_i2c_resume(struct tp_device *tp_d)
{
struct wacom_i2c *wac_i2c = container_of(tp_d, struct wacom_i2c, tp);
dev_dbg(&wac_i2c->client->dev, "%s\n", __func__);
enable_irq(wac_i2c->client->irq);
return 0;
}
static int g_irq_gpio = -1;
static int wacom_i2c_probe(struct i2c_client *client,
const struct i2c_device_id *id)
@@ -372,7 +400,14 @@ static int wacom_i2c_probe(struct i2c_client *client,
goto err_free_irq;
}
device_init_wakeup(&client->dev, 1);
enable_irq_wake(client->irq);
wac_i2c->tp.tp_resume = wacom_i2c_resume;
wac_i2c->tp.tp_suspend = wacom_i2c_suspend;
tp_register_fb(&wac_i2c->tp);
i2c_set_clientdata(client, wac_i2c);
return 0;
err_free_irq:
@@ -398,26 +433,6 @@ static int wacom_i2c_remove(struct i2c_client *client)
return 0;
}
static int __maybe_unused wacom_i2c_suspend(struct device *dev)
{
struct i2c_client *client = to_i2c_client(dev);
disable_irq(client->irq);
return 0;
}
static int __maybe_unused wacom_i2c_resume(struct device *dev)
{
struct i2c_client *client = to_i2c_client(dev);
enable_irq(client->irq);
return 0;
}
static SIMPLE_DEV_PM_OPS(wacom_i2c_pm, wacom_i2c_suspend, wacom_i2c_resume);
static const struct i2c_device_id wacom_i2c_id[] = {
{ "wacom", 0 },
{ },
@@ -439,7 +454,6 @@ static struct i2c_driver wacom_i2c_driver = {
.name = "wacom",
.owner = THIS_MODULE,
.of_match_table = wacom_dt_ids,
.pm = &wacom_i2c_pm,
},
.probe = wacom_i2c_probe,