diff options
| author | Jaehoon Chung <jh80.chung@samsung.com> | 2016-12-15 20:49:50 +0900 |
|---|---|---|
| committer | Jaehoon Chung <jh80.chung@samsung.com> | 2017-01-11 19:40:14 +0900 |
| commit | 505cf4750ae55e711663538b3ec7a294c08e7417 (patch) | |
| tree | 43f8c393b19f0946457b1beda94d228b1e6fc6e0 /drivers/power/tps6586x.c | |
| parent | 9c720c815b1b1e95fb13153396417dddf323511d (diff) | |
| download | u-boot-505cf4750ae55e711663538b3ec7a294c08e7417.tar.gz | |
power: change from meaningless value to error number
'-1' is absolutely meaningless value.
This patch changed from meaningless value to error number.
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'drivers/power/tps6586x.c')
| -rw-r--r-- | drivers/power/tps6586x.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/drivers/power/tps6586x.c b/drivers/power/tps6586x.c index 865098386d..f50c4d17ee 100644 --- a/drivers/power/tps6586x.c +++ b/drivers/power/tps6586x.c @@ -97,14 +97,14 @@ static int read_voltages(int *sm0, int *sm1) ctrl1 = tps6586x_read(SUPPLY_CONTROL1); ctrl2 = tps6586x_read(SUPPLY_CONTROL2); if (ctrl1 == -1 || ctrl2 == -1) - return -1; + return -ENOTSUPP; /* Figure out whether V1 or V2 is selected */ is_v2 = (ctrl1 | ctrl2) & CTRL_SM0_SUPPLY2; *sm0 = tps6586x_read(is_v2 ? SM0_VOLTAGE_V2 : SM0_VOLTAGE_V1); *sm1 = tps6586x_read(is_v2 ? SM1_VOLTAGE_V2 : SM1_VOLTAGE_V1); if (*sm0 == -1 || *sm1 == -1) - return -1; + return -ENOTSUPP; return 0; } @@ -129,7 +129,7 @@ static int set_voltage(int reg, int data, int rate) /* write v1, v2 and rate, then trigger */ if (tps6586x_write(reg, buff, 3) || tps6586x_write(SUPPLY_CONTROL1, &control_bit, 1)) - return -1; + return -ENOTSUPP; return 0; } @@ -177,7 +177,7 @@ int tps6586x_adjust_sm0_sm1(int sm0_target, int sm1_target, int step, int rate, /* get current voltage settings */ if (read_voltages(&sm0, &sm1)) { debug("%s: Cannot read voltage settings\n", __func__); - return -1; + return -EINVAL; } /* @@ -189,7 +189,7 @@ int tps6586x_adjust_sm0_sm1(int sm0_target, int sm1_target, int step, int rate, if (min_sm0_over_sm1 != -1 && sm0 < sm1 + min_sm0_over_sm1) { debug("%s: SM0 is %d, SM1 is %d, but min_sm0_over_sm1 is %d\n", __func__, sm0, sm1, min_sm0_over_sm1); - return -1; + return -EINVAL; } /* @@ -240,7 +240,7 @@ int tps6586x_adjust_sm0_sm1(int sm0_target, int sm1_target, int step, int rate, } debug("%d-%d %d-%d done\n", sm0, sm0_target, sm1, sm1_target); - return bad ? -1 : 0; + return bad ? -EINVAL : 0; } int tps6586x_init(struct udevice *dev) |