diff options
Diffstat (limited to 'drivers/nfc')
| -rw-r--r-- | drivers/nfc/pn544/i2c.c | 21 |
1 files changed, 17 insertions, 4 deletions
diff --git a/drivers/nfc/pn544/i2c.c b/drivers/nfc/pn544/i2c.c index 327c33df5b22..6f2a9dff6b71 100644 --- a/drivers/nfc/pn544/i2c.c +++ b/drivers/nfc/pn544/i2c.c @@ -869,22 +869,34 @@ exit_state_wait_secure_write_answer: } } +static const struct acpi_gpio_params enable_gpios = { 1, 0, false }; +static const struct acpi_gpio_params firmware_gpios = { 2, 0, false }; + +static const struct acpi_gpio_mapping acpi_pn544_gpios[] = { + { "enable-gpios", &enable_gpios, 1 }, + { "firmware-gpios", &firmware_gpios, 1 }, + { }, +}; + static int pn544_hci_i2c_acpi_request_resources(struct i2c_client *client) { struct pn544_i2c_phy *phy = i2c_get_clientdata(client); struct device *dev = &client->dev; + int ret; + + ret = acpi_dev_add_driver_gpios(ACPI_COMPANION(dev), acpi_pn544_gpios); + if (ret) + return ret; /* Get EN GPIO from ACPI */ - phy->gpiod_en = devm_gpiod_get_index(dev, PN544_GPIO_NAME_EN, 1, - GPIOD_OUT_LOW); + phy->gpiod_en = devm_gpiod_get(dev, "enable", GPIOD_OUT_LOW); if (IS_ERR(phy->gpiod_en)) { nfc_err(dev, "Unable to get EN GPIO\n"); return PTR_ERR(phy->gpiod_en); } /* Get FW GPIO from ACPI */ - phy->gpiod_fw = devm_gpiod_get_index(dev, PN544_GPIO_NAME_FW, 2, - GPIOD_OUT_LOW); + phy->gpiod_fw = devm_gpiod_get(dev, "firmware", GPIOD_OUT_LOW); if (IS_ERR(phy->gpiod_fw)) { nfc_err(dev, "Unable to get FW GPIO\n"); return PTR_ERR(phy->gpiod_fw); @@ -996,6 +1008,7 @@ static int pn544_hci_i2c_remove(struct i2c_client *client) if (phy->powered) pn544_hci_i2c_disable(phy); + acpi_dev_remove_driver_gpios(ACPI_COMPANION(&client->dev)); return 0; } |