From 8e35762fd5f2b074cff3e5c176c80008c70cc8f3 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Tue, 5 Aug 2014 10:56:47 +0800 Subject: [PATCH] hwmon: (ads1015) Use of_property_read_u32 at appropriate places Simplify the code a bit and also improve readability. Signed-off-by: Axel Lin Signed-off-by: Guenter Roeck --- drivers/hwmon/ads1015.c | 21 ++++++++------------- 1 file changed, 8 insertions(+), 13 deletions(-) diff --git a/drivers/hwmon/ads1015.c b/drivers/hwmon/ads1015.c index 126516414c11..f155b8380481 100644 --- a/drivers/hwmon/ads1015.c +++ b/drivers/hwmon/ads1015.c @@ -184,20 +184,18 @@ static int ads1015_get_channels_config_of(struct i2c_client *client) return -EINVAL; for_each_child_of_node(client->dev.of_node, node) { - const __be32 *property; - int len; + u32 pval; unsigned int channel; unsigned int pga = ADS1015_DEFAULT_PGA; unsigned int data_rate = ADS1015_DEFAULT_DATA_RATE; - property = of_get_property(node, "reg", &len); - if (!property || len != sizeof(int)) { + if (of_property_read_u32(node, "reg", &pval)) { dev_err(&client->dev, "invalid reg on %s\n", node->full_name); continue; } - channel = be32_to_cpup(property); + channel = pval; if (channel >= ADS1015_CHANNELS) { dev_err(&client->dev, "invalid channel index %d on %s\n", @@ -205,20 +203,17 @@ static int ads1015_get_channels_config_of(struct i2c_client *client) continue; } - property = of_get_property(node, "ti,gain", &len); - if (property && len == sizeof(int)) { - pga = be32_to_cpup(property); + if (!of_property_read_u32(node, "ti,gain", &pval)) { + pga = pval; if (pga > 6) { - dev_err(&client->dev, - "invalid gain on %s\n", + dev_err(&client->dev, "invalid gain on %s\n", node->full_name); return -EINVAL; } } - property = of_get_property(node, "ti,datarate", &len); - if (property && len == sizeof(int)) { - data_rate = be32_to_cpup(property); + if (!of_property_read_u32(node, "ti,datarate", &pval)) { + data_rate = pval; if (data_rate > 7) { dev_err(&client->dev, "invalid data_rate on %s\n",