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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>
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a4a0eb783b
commit
95129b6f08
1 changed files with 17 additions and 67 deletions
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@ -878,58 +878,10 @@ static const struct acpi_gpio_mapping acpi_pn544_gpios[] = {
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{ },
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{ },
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};
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};
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static int pn544_hci_i2c_acpi_request_resources(struct i2c_client *client)
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{
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struct pn544_i2c_phy *phy = i2c_get_clientdata(client);
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struct device *dev = &client->dev;
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int ret;
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ret = acpi_dev_add_driver_gpios(ACPI_COMPANION(dev), acpi_pn544_gpios);
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if (ret)
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return ret;
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/* Get EN GPIO from ACPI */
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phy->gpiod_en = devm_gpiod_get(dev, "enable", GPIOD_OUT_LOW);
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if (IS_ERR(phy->gpiod_en)) {
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nfc_err(dev, "Unable to get EN GPIO\n");
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return PTR_ERR(phy->gpiod_en);
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}
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/* Get FW GPIO from ACPI */
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phy->gpiod_fw = devm_gpiod_get(dev, "firmware", GPIOD_OUT_LOW);
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if (IS_ERR(phy->gpiod_fw)) {
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nfc_err(dev, "Unable to get FW GPIO\n");
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return PTR_ERR(phy->gpiod_fw);
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}
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return 0;
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}
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static int pn544_hci_i2c_of_request_resources(struct i2c_client *client)
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{
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struct pn544_i2c_phy *phy = i2c_get_clientdata(client);
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struct device *dev = &client->dev;
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/* Obtaining EN GPIO from device tree */
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phy->gpiod_en = devm_gpiod_get(dev, "enable", GPIOD_OUT_LOW);
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if (IS_ERR(phy->gpiod_en)) {
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nfc_err(dev, "Failed to get EN gpio\n");
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return PTR_ERR(phy->gpiod_en);
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}
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/* Obtaining FW GPIO from device tree */
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phy->gpiod_fw = devm_gpiod_get(dev, "firmware", GPIOD_OUT_LOW);
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if (IS_ERR(phy->gpiod_fw)) {
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nfc_err(dev, "Failed to get FW gpio\n");
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return PTR_ERR(phy->gpiod_fw);
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}
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return 0;
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}
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static int pn544_hci_i2c_probe(struct i2c_client *client,
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static int pn544_hci_i2c_probe(struct i2c_client *client,
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const struct i2c_device_id *id)
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const struct i2c_device_id *id)
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{
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{
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struct device *dev = &client->dev;
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struct pn544_i2c_phy *phy;
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struct pn544_i2c_phy *phy;
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int r = 0;
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int r = 0;
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@ -952,24 +904,22 @@ static int pn544_hci_i2c_probe(struct i2c_client *client,
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phy->i2c_dev = client;
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phy->i2c_dev = client;
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i2c_set_clientdata(client, phy);
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i2c_set_clientdata(client, phy);
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/* No platform data, using device tree. */
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r = acpi_dev_add_driver_gpios(ACPI_COMPANION(dev), acpi_pn544_gpios);
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if (client->dev.of_node) {
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if (r)
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r = pn544_hci_i2c_of_request_resources(client);
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dev_dbg(dev, "Unable to add GPIO mapping table\n");
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if (r) {
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nfc_err(&client->dev, "No DT data\n");
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/* Get EN GPIO */
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return r;
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phy->gpiod_en = devm_gpiod_get(dev, "enable", GPIOD_OUT_LOW);
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if (IS_ERR(phy->gpiod_en)) {
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nfc_err(dev, "Unable to get EN GPIO\n");
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return PTR_ERR(phy->gpiod_en);
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}
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}
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/* Using ACPI */
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} else if (ACPI_HANDLE(&client->dev)) {
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/* Get FW GPIO */
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r = pn544_hci_i2c_acpi_request_resources(client);
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phy->gpiod_fw = devm_gpiod_get(dev, "firmware", GPIOD_OUT_LOW);
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if (r) {
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if (IS_ERR(phy->gpiod_fw)) {
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nfc_err(&client->dev,
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nfc_err(dev, "Unable to get FW GPIO\n");
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"Cannot get ACPI data\n");
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return PTR_ERR(phy->gpiod_fw);
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return r;
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}
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} else {
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nfc_err(&client->dev, "No platform data\n");
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return -EINVAL;
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}
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}
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pn544_hci_i2c_platform_init(phy);
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pn544_hci_i2c_platform_init(phy);
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