diff options
Diffstat (limited to 'drivers/nfc/st21nfcb/i2c.c')
| -rw-r--r-- | drivers/nfc/st21nfcb/i2c.c | 39 |
1 files changed, 6 insertions, 33 deletions
diff --git a/drivers/nfc/st21nfcb/i2c.c b/drivers/nfc/st21nfcb/i2c.c index c5d2427a3db2..01ba865863ee 100644 --- a/drivers/nfc/st21nfcb/i2c.c +++ b/drivers/nfc/st21nfcb/i2c.c @@ -50,7 +50,6 @@ struct st21nfcb_i2c_phy { struct i2c_client *i2c_dev; struct llt_ndlc *ndlc; - unsigned int gpio_irq; unsigned int gpio_reset; unsigned int irq_polarity; @@ -81,8 +80,6 @@ static void st21nfcb_nci_i2c_disable(void *phy_id) { struct st21nfcb_i2c_phy *phy = phy_id; - pr_info("\n"); - phy->powered = 0; /* reset chip in order to flush clf */ gpio_set_value(phy->gpio_reset, 0); @@ -258,19 +255,11 @@ static int st21nfcb_nci_i2c_of_request_resources(struct i2c_client *client) GPIOF_OUT_INIT_HIGH, "clf_reset"); if (r) { nfc_err(&client->dev, "Failed to request reset pin\n"); - return -ENODEV; - } - phy->gpio_reset = gpio; - - /* IRQ */ - r = irq_of_parse_and_map(pp, 0); - if (r < 0) { - nfc_err(&client->dev, "Unable to get irq, error: %d\n", r); return r; } + phy->gpio_reset = gpio; - phy->irq_polarity = irq_get_trigger_type(r); - client->irq = r; + phy->irq_polarity = irq_get_trigger_type(client->irq); return 0; } @@ -286,7 +275,6 @@ static int st21nfcb_nci_i2c_request_resources(struct i2c_client *client) struct st21nfcb_nfc_platform_data *pdata; struct st21nfcb_i2c_phy *phy = i2c_get_clientdata(client); int r; - int irq; pdata = client->dev.platform_data; if (pdata == NULL) { @@ -295,33 +283,15 @@ static int st21nfcb_nci_i2c_request_resources(struct i2c_client *client) } /* store for later use */ - phy->gpio_irq = pdata->gpio_irq; phy->gpio_reset = pdata->gpio_reset; phy->irq_polarity = pdata->irq_polarity; - r = devm_gpio_request_one(&client->dev, phy->gpio_irq, - GPIOF_IN, "clf_irq"); - if (r) { - pr_err("%s : gpio_request failed\n", __FILE__); - return -ENODEV; - } - r = devm_gpio_request_one(&client->dev, phy->gpio_reset, GPIOF_OUT_INIT_HIGH, "clf_reset"); if (r) { pr_err("%s : reset gpio_request failed\n", __FILE__); - return -ENODEV; - } - - /* IRQ */ - irq = gpio_to_irq(phy->gpio_irq); - if (irq < 0) { - nfc_err(&client->dev, - "Unable to get irq number for GPIO %d error %d\n", - phy->gpio_irq, r); - return -ENODEV; + return r; } - client->irq = irq; return 0; } @@ -401,10 +371,13 @@ static int st21nfcb_nci_i2c_remove(struct i2c_client *client) return 0; } +#ifdef CONFIG_OF static const struct of_device_id of_st21nfcb_i2c_match[] = { { .compatible = "st,st21nfcb_i2c", }, {} }; +MODULE_DEVICE_TABLE(of, of_st21nfcb_i2c_match); +#endif static struct i2c_driver st21nfcb_nci_i2c_driver = { .driver = { |