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authorAndy Shevchenko <andriy.shevchenko@linux.intel.com>2017-03-28 12:36:39 +0300
committerSamuel Ortiz <sameo@linux.intel.com>2017-04-05 10:04:20 +0200
commit95129b6f0806d1ba6109dc1df4d9753ad3d4a94c (patch)
tree9f7501bab0912c116aca9f53450bffe2541e67b3 /drivers/nfc/pn544
parenta4a0eb783b112e45563dcf020388dfa186961010 (diff)
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.c84
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);