[PATCH v3 3/8] nfc: s3fwrn5: Remove wrong vendor prefix from GPIOs

[Krzysztof Kozlowski]

The device tree property prefix describes the vendor, which in case of
S3FWRN5 chip is Samsung.  Therefore the "s3fwrn5" prefix for "en-gpios"
and "fw-gpios" is not correct and should be deprecated.  Introduce
properly named properties for these GPIOs but still support deprecated
ones.

Signed-off-by: Krzysztof Kozlowski <krzk at kernel.org>
Tested-by: Marek Szyprowski <m.szyprowski at samsung.com>
---
 drivers/nfc/s3fwrn5/i2c.c | 20 ++++++++++++++------
 1 file changed, 14 insertions(+), 6 deletions(-)

diff --git a/drivers/nfc/s3fwrn5/i2c.c b/drivers/nfc/s3fwrn5/i2c.c
index b4eb926d220a..557279492503 100644
--- a/drivers/nfc/s3fwrn5/i2c.c
+++ b/drivers/nfc/s3fwrn5/i2c.c
@@ -200,13 +200,21 @@ static int s3fwrn5_i2c_parse_dt(struct i2c_client *client)
 	if (!np)
 		return -ENODEV;
 
-	phy->gpio_en = of_get_named_gpio(np, "s3fwrn5,en-gpios", 0);
-	if (!gpio_is_valid(phy->gpio_en))
-		return -ENODEV;
+	phy->gpio_en = of_get_named_gpio(np, "en-gpios", 0);
+	if (!gpio_is_valid(phy->gpio_en)) {
+		/* Support also deprecated property */
+		phy->gpio_en = of_get_named_gpio(np, "s3fwrn5,en-gpios", 0);
+		if (!gpio_is_valid(phy->gpio_en))
+			return -ENODEV;
+	}
 
-	phy->gpio_fw_wake = of_get_named_gpio(np, "s3fwrn5,fw-gpios", 0);
-	if (!gpio_is_valid(phy->gpio_fw_wake))
-		return -ENODEV;
+	phy->gpio_fw_wake = of_get_named_gpio(np, "wake-gpios", 0);
+	if (!gpio_is_valid(phy->gpio_fw_wake)) {
+		/* Support also deprecated property */
+		phy->gpio_fw_wake = of_get_named_gpio(np, "s3fwrn5,fw-gpios", 0);
+		if (!gpio_is_valid(phy->gpio_fw_wake))
+			return -ENODEV;
+	}
 
 	return 0;
 }
-- 
2.17.1