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power: supply: twl4030_charger: Use sysfs_match_string() helper

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Use sysfs_match_string() helper instead of open coded variant.

Cc: Sebastian Reichel <sre@kernel.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
This commit is contained in:
Andy Shevchenko 2017-06-11 18:15:48 +03:00 committed by Sebastian Reichel
parent 153e9e90ff
commit 37853952b9
1 changed files with 5 additions and 9 deletions
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14
drivers/power/supply/twl4030_charger.c
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@ -153,7 +153,7 @@ struct twl4030_bci {
};
/* strings for 'usb_mode' values */
static char *modes[] = { "off", "auto", "continuous" };
static const char *modes[] = { "off", "auto", "continuous" };
/*
* clear and set bits on an given register on a given module
@ -669,14 +669,10 @@ twl4030_bci_mode_store(struct device *dev, struct device_attribute *attr,
int mode;
int status;
if (sysfs_streq(buf, modes[0]))
mode = 0;
else if (sysfs_streq(buf, modes[1]))
mode = 1;
else if (sysfs_streq(buf, modes[2]))
mode = 2;
else
return -EINVAL;
mode = sysfs_match_string(modes, buf);
if (mode < 0)
return mode;
if (dev == &bci->ac->dev) {
if (mode == 2)
return -EINVAL;