samsung-sm8650/android_kernel_samsung_sm8650-modules
1
0
Fork 0
Koodi Ongelmat Pull-pyynnöt Actions Paketit Projektit Julkaisut Wiki Toiminta

Updated corresponding to - NFC_AR_00_E800_12.10.00_OpnSrc

Selaa lähdekoodia
This commit is contained in:
nxf35421
2021-12-17 17:25:16 +05:30
vanhempi 5e8c04a48d
commit 55d2657f94
4 muutettua tiedostoa jossa 87 lisäystä ja 39 poistoa
Download Patch File Download Diff File Expand all files Collapse all files

32
nfc/i2c_drv.c
Näytä tiedosto

@@ -40,7 +40,9 @@
#include <linux/delay.h>
#include <linux/uaccess.h>
#include <linux/gpio.h>
#ifdef CONFIG_COMPAT
#include <linux/compat.h>
#endif
#include "common_ese.h"
/**
@@ -256,6 +258,10 @@ ssize_t nfc_i2c_dev_read(struct file *filp, char __user *buf, size_t count,
int ret;
struct nfc_dev *nfc_dev = (struct nfc_dev *)filp->private_data;
if (!nfc_dev) {
pr_err("%s: device doesn't exist anymore\n", __func__);
return -ENODEV;
}
mutex_lock(&nfc_dev->read_mutex);
if (filp->f_flags & O_NONBLOCK) {
ret = i2c_master_recv(nfc_dev->i2c_dev.client, nfc_dev->read_kbuf, count);
@@ -282,6 +288,11 @@ ssize_t nfc_i2c_dev_write(struct file *filp, const char __user *buf,
if (count > MAX_DL_BUFFER_SIZE)
count = MAX_DL_BUFFER_SIZE;
if (!nfc_dev) {
pr_err("%s: device doesn't exist anymore\n", __func__);
return -ENODEV;
}
mutex_lock(&nfc_dev->write_mutex);
if (copy_from_user(nfc_dev->write_kbuf, buf, count)) {
pr_err("%s: failed to copy from user space\n", __func__);
@@ -302,6 +313,9 @@ static const struct file_operations nfc_i2c_dev_fops = {
.flush = nfc_dev_flush,
.release = nfc_dev_close,
.unlocked_ioctl = nfc_dev_ioctl,
#ifdef CONFIG_COMPAT
.compat_ioctl = nfc_dev_compat_ioctl,
#endif
};
int nfc_i2c_dev_probe(struct i2c_client *client, const struct i2c_device_id *id)
@@ -454,12 +468,18 @@ int nfc_i2c_dev_suspend(struct device *device)
{
struct i2c_client *client = to_i2c_client(device);
struct nfc_dev *nfc_dev = i2c_get_clientdata(client);
struct i2c_dev *i2c_dev = &nfc_dev->i2c_dev;
struct i2c_dev *i2c_dev = NULL;
if (!nfc_dev) {
pr_err("%s: device doesn't exist anymore\n", __func__);
return -ENODEV;
}
i2c_dev = &nfc_dev->i2c_dev;
if (device_may_wakeup(&client->dev) && i2c_dev->irq_enabled) {
if (!enable_irq_wake(client->irq))
i2c_dev->irq_wake_up = true;
}
pr_debug("%s: irq_wake_up = %d", __func__, i2c_dev->irq_wake_up);
return 0;
}
@@ -467,12 +487,18 @@ int nfc_i2c_dev_resume(struct device *device)
{
struct i2c_client *client = to_i2c_client(device);
struct nfc_dev *nfc_dev = i2c_get_clientdata(client);
struct i2c_dev *i2c_dev = &nfc_dev->i2c_dev;
struct i2c_dev *i2c_dev = NULL;
if (!nfc_dev) {
pr_err("%s: device doesn't exist anymore\n", __func__);
return -ENODEV;
}
i2c_dev = &nfc_dev->i2c_dev;
if (device_may_wakeup(&client->dev) && i2c_dev->irq_wake_up) {
if (!disable_irq_wake(client->irq))
i2c_dev->irq_wake_up = false;
}
pr_debug("%s: irq_wake_up = %d", __func__, i2c_dev->irq_wake_up);
return 0;
}