linux-kernel - [PATCH v3 2/3] hwmon/ltc2990: Generalise DT to fwnode support

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Message-Id: <20190815125802.16500-2-max@enpas.org>
Date:   Thu, 15 Aug 2019 14:58:01 +0200
From:   Max Staudt <max@...as.org>
To:     linux-i2c@...r.kernel.org, linux-hwmon@...r.kernel.org,
        Wolfram Sang <wsa+renesas@...g-engineering.com>,
        Jean Delvare <jdelvare@...e.com>,
        Guenter Roeck <linux@...ck-us.net>
Cc:     linux-m68k@...r.kernel.org, linux-kernel@...r.kernel.org,
        glaubitz@...sik.fu-berlin.de, Max Staudt <max@...as.org>
Subject: [PATCH v3 2/3] hwmon/ltc2990: Generalise DT to fwnode support

ltc2990 will now use device_property_read_u32_array() instead of
of_property_read_u32_array() - allowing the use of software nodes
via fwnode_create_software_node().

This allows code using i2c_new_device() to specify a default
measurement mode for the LTC2990.

Signed-off-by: Max Staudt <max@...as.org>
---
 drivers/hwmon/ltc2990.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/hwmon/ltc2990.c b/drivers/hwmon/ltc2990.c
index f9431ad43..e06619ac9 100644
--- a/drivers/hwmon/ltc2990.c
+++ b/drivers/hwmon/ltc2990.c
@@ -206,7 +206,6 @@ static int ltc2990_i2c_probe(struct i2c_client *i2c,
 	int ret;
 	struct device *hwmon_dev;
 	struct ltc2990_data *data;
-	struct device_node *of_node = i2c->dev.of_node;
 
 	if (!i2c_check_functionality(i2c->adapter, I2C_FUNC_SMBUS_BYTE_DATA |
 				     I2C_FUNC_SMBUS_WORD_DATA))
@@ -218,9 +217,10 @@ static int ltc2990_i2c_probe(struct i2c_client *i2c,
 
 	data->i2c = i2c;
 
-	if (of_node) {
-		ret = of_property_read_u32_array(of_node, "lltc,meas-mode",
-						 data->mode, 2);
+	if (i2c->dev.of_node || i2c->dev.fwnode) {
+		ret = device_property_read_u32_array(&i2c->dev,
+						     "lltc,meas-mode",
+						     data->mode, 2);
 		if (ret < 0)
 			return ret;
 
-- 
2.11.0