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author | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2017-03-28 12:36:39 +0300 |
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committer | Samuel Ortiz <sameo@linux.intel.com> | 2017-04-05 10:04:20 +0200 |
commit | 95129b6f0806d1ba6109dc1df4d9753ad3d4a94c (patch) | |
tree | 9f7501bab0912c116aca9f53450bffe2541e67b3 /drivers/nfc/pn544 | |
parent | a4a0eb783b112e45563dcf020388dfa186961010 (diff) | |
download | linux-95129b6f0806d1ba6109dc1df4d9753ad3d4a94c.tar.gz linux-95129b6f0806d1ba6109dc1df4d9753ad3d4a94c.tar.bz2 linux-95129b6f0806d1ba6109dc1df4d9753ad3d4a94c.zip |
NFC: pn544: Get rid of code duplication in ->probe()
Since OF and ACPI case almost the same get rid of code duplication
by moving gpiod_get() calls directly to ->probe().
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Diffstat (limited to 'drivers/nfc/pn544')
-rw-r--r-- | drivers/nfc/pn544/i2c.c | 84 |
1 files changed, 17 insertions, 67 deletions
diff --git a/drivers/nfc/pn544/i2c.c b/drivers/nfc/pn544/i2c.c index 6f2a9dff6b71..71ac0836c9f4 100644 --- a/drivers/nfc/pn544/i2c.c +++ b/drivers/nfc/pn544/i2c.c @@ -878,58 +878,10 @@ static const struct acpi_gpio_mapping acpi_pn544_gpios[] = { { }, }; -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(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(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); - } - - return 0; -} - -static int pn544_hci_i2c_of_request_resources(struct i2c_client *client) -{ - struct pn544_i2c_phy *phy = i2c_get_clientdata(client); - struct device *dev = &client->dev; - - /* Obtaining EN GPIO from device tree */ - phy->gpiod_en = devm_gpiod_get(dev, "enable", GPIOD_OUT_LOW); - if (IS_ERR(phy->gpiod_en)) { - nfc_err(dev, "Failed to get EN gpio\n"); - return PTR_ERR(phy->gpiod_en); - } - - /* Obtaining FW GPIO from device tree */ - phy->gpiod_fw = devm_gpiod_get(dev, "firmware", GPIOD_OUT_LOW); - if (IS_ERR(phy->gpiod_fw)) { - nfc_err(dev, "Failed to get FW gpio\n"); - return PTR_ERR(phy->gpiod_fw); - } - - return 0; -} - static int pn544_hci_i2c_probe(struct i2c_client *client, const struct i2c_device_id *id) { + struct device *dev = &client->dev; struct pn544_i2c_phy *phy; int r = 0; @@ -952,24 +904,22 @@ static int pn544_hci_i2c_probe(struct i2c_client *client, phy->i2c_dev = client; i2c_set_clientdata(client, phy); - /* No platform data, using device tree. */ - if (client->dev.of_node) { - r = pn544_hci_i2c_of_request_resources(client); - if (r) { - nfc_err(&client->dev, "No DT data\n"); - return r; - } - /* Using ACPI */ - } else if (ACPI_HANDLE(&client->dev)) { - r = pn544_hci_i2c_acpi_request_resources(client); - if (r) { - nfc_err(&client->dev, - "Cannot get ACPI data\n"); - return r; - } - } else { - nfc_err(&client->dev, "No platform data\n"); - return -EINVAL; + r = acpi_dev_add_driver_gpios(ACPI_COMPANION(dev), acpi_pn544_gpios); + if (r) + dev_dbg(dev, "Unable to add GPIO mapping table\n"); + + /* Get EN GPIO */ + 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 */ + 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); } pn544_hci_i2c_platform_init(phy); |