* [lm-sensors] [PATCH v2 2/2] hwmon: (ads1015) Use of_property_read_u32 at appropriate places
@ 2014-08-02 6:28 Axel Lin
0 siblings, 0 replies; only message in thread
From: Axel Lin @ 2014-08-02 6:28 UTC (permalink / raw)
To: lm-sensors
Simplify the code a bit and also improve readability.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
---
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 fe1a5a1..32994d5 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);
pga = ADS1015_DEFAULT_PGA;
}
}
- 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",
--
1.9.1
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