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authorGuenter Roeck <guenter.roeck@ericsson.com>2011-07-29 22:19:39 -0700
committerGuenter Roeck <guenter.roeck@ericsson.com>2011-10-24 11:09:40 -0700
commitda8e48ab483e1f54c1099bed91bfd2c302bc7ddf (patch)
tree10a2c76781ef0b1c51515d4feb71c7fa5ae6e29f /drivers/hwmon/pmbus/lm25066.c
parent179144a0d4128e7588b3d613a14807402f5e7c37 (diff)
downloadtalos-obmc-linux-da8e48ab483e1f54c1099bed91bfd2c302bc7ddf.tar.gz
talos-obmc-linux-da8e48ab483e1f54c1099bed91bfd2c302bc7ddf.zip
hwmon: (pmbus) Always call _pmbus_read_byte in core driver
Always call _pmbus_read_byte() instead of pmbus_read_byte() in PMBus core driver. With this change, device specific read functions can be implemented for all registers. Since the device specific read_byte function is now always called, we need to be more careful with page validations. Only fail if the passed page number is larger than 0, since -1 means "current page". Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com> Reviewed-by: Robert Coulson <robert.coulson@ericsson.com>
Diffstat (limited to 'drivers/hwmon/pmbus/lm25066.c')
-rw-r--r--drivers/hwmon/pmbus/lm25066.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/hwmon/pmbus/lm25066.c b/drivers/hwmon/pmbus/lm25066.c
index a72bb9f51dec..84a37f0c8db6 100644
--- a/drivers/hwmon/pmbus/lm25066.c
+++ b/drivers/hwmon/pmbus/lm25066.c
@@ -166,8 +166,8 @@ static int lm25066_write_byte(struct i2c_client *client, int page, u8 value)
if (page > 1)
return -ENXIO;
- if (page == 0)
- return pmbus_write_byte(client, 0, value);
+ if (page <= 0)
+ return pmbus_write_byte(client, page, value);
return 0;
}
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