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lp8788-charger: Use PAGE_SIZE for the sysfs read operation

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The sysfs allocates PAGE_SIZE. It is used by each R/W operation method.
Use it instead of another buffer size.

Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>
This commit is contained in:
Kim, Milo 2013-03-15 00:19:29 +00:00 committed by Anton Vorontsov
parent feeb3a92b1
commit 4b44a1ed82
1 changed files with 3 additions and 5 deletions
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8
drivers/power/lp8788-charger.c
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@ -49,7 +49,6 @@
#define LP8788_CHG_START 0x11
#define LP8788_CHG_END 0x1C
#define LP8788_BUF_SIZE 40
#define LP8788_ISEL_MAX 23
#define LP8788_ISEL_STEP 50
#define LP8788_VTERM_MIN 4100
@ -633,7 +632,7 @@ static ssize_t lp8788_show_charger_status(struct device *dev,
lp8788_read_byte(pchg->lp, LP8788_CHG_STATUS, &data);
state = (data & LP8788_CHG_STATE_M) >> LP8788_CHG_STATE_S;
return scnprintf(buf, LP8788_BUF_SIZE, "%s\n", desc[state]);
return scnprintf(buf, PAGE_SIZE, "%s\n", desc[state]);
}
static ssize_t lp8788_show_eoc_time(struct device *dev,
@ -647,7 +646,7 @@ static ssize_t lp8788_show_eoc_time(struct device *dev,
lp8788_read_byte(pchg->lp, LP8788_CHG_EOC, &val);
val = (val & LP8788_CHG_EOC_TIME_M) >> LP8788_CHG_EOC_TIME_S;
return scnprintf(buf, LP8788_BUF_SIZE, "End Of Charge Time: %s\n",
return scnprintf(buf, PAGE_SIZE, "End Of Charge Time: %s\n",
stime[val]);
}
@ -667,8 +666,7 @@ static ssize_t lp8788_show_eoc_level(struct device *dev,
val = (val & LP8788_CHG_EOC_LEVEL_M) >> LP8788_CHG_EOC_LEVEL_S;
level = mode ? abs_level[val] : relative_level[val];
return scnprintf(buf, LP8788_BUF_SIZE, "End Of Charge Level: %s\n",
level);
return scnprintf(buf, PAGE_SIZE, "End Of Charge Level: %s\n", level);
}
static DEVICE_ATTR(charger_status, S_IRUSR, lp8788_show_charger_status, NULL);