diff options
Diffstat (limited to 'drivers/nfc/nq-nci.c')
| -rw-r--r-- | drivers/nfc/nq-nci.c | 28 |
1 files changed, 18 insertions, 10 deletions
diff --git a/drivers/nfc/nq-nci.c b/drivers/nfc/nq-nci.c index 88011626e05e..918f8c82acdd 100644 --- a/drivers/nfc/nq-nci.c +++ b/drivers/nfc/nq-nci.c @@ -325,8 +325,10 @@ static int nqx_ese_pwr(struct nqx_dev *nqx_dev, unsigned long int arg) } else if (arg == 3) { if (!nqx_dev->nfc_ven_enabled) r = 0; - else - r = gpio_get_value(nqx_dev->ese_gpio); + else { + if (gpio_is_valid(nqx_dev->ese_gpio)) + r = gpio_get_value(nqx_dev->ese_gpio); + } } return r; } @@ -375,11 +377,14 @@ int nfc_ioctl_power_states(struct file *filp, unsigned long arg) __func__, nqx_dev); if (gpio_is_valid(nqx_dev->firm_gpio)) gpio_set_value(nqx_dev->firm_gpio, 0); - if (!gpio_get_value(nqx_dev->ese_gpio)) { - dev_dbg(&nqx_dev->client->dev, "disabling en_gpio\n"); - gpio_set_value(nqx_dev->en_gpio, 0); - } else { - dev_dbg(&nqx_dev->client->dev, "keeping en_gpio high\n"); + + if (gpio_is_valid(nqx_dev->ese_gpio)) { + if (!gpio_get_value(nqx_dev->ese_gpio)) { + dev_dbg(&nqx_dev->client->dev, "disabling en_gpio\n"); + gpio_set_value(nqx_dev->en_gpio, 0); + } else { + dev_dbg(&nqx_dev->client->dev, "keeping en_gpio high\n"); + } } r = nqx_clock_deselect(nqx_dev); if (r < 0) @@ -405,9 +410,11 @@ int nfc_ioctl_power_states(struct file *filp, unsigned long arg) * We are switching to Dowload Mode, toggle the enable pin * in order to set the NFCC in the new mode */ - if (gpio_get_value(nqx_dev->ese_gpio)) { - dev_err(&nqx_dev->client->dev, "FW download forbidden while ese is on\n"); - return -EBUSY; /* Device or resource busy */ + if (gpio_is_valid(nqx_dev->ese_gpio)) { + if (gpio_get_value(nqx_dev->ese_gpio)) { + dev_err(&nqx_dev->client->dev, "FW download forbidden while ese is on\n"); + return -EBUSY; /* Device or resource busy */ + } } gpio_set_value(nqx_dev->en_gpio, 1); msleep(20); @@ -828,6 +835,7 @@ static int nqx_probe(struct i2c_client *client, nqx_dev->en_gpio = platform_data->en_gpio; nqx_dev->irq_gpio = platform_data->irq_gpio; nqx_dev->firm_gpio = platform_data->firm_gpio; + nqx_dev->ese_gpio = platform_data->ese_gpio; nqx_dev->clkreq_gpio = platform_data->clkreq_gpio; nqx_dev->pdata = platform_data; |