regulator: tps62360: Fix off-by-one shift for ramp_ctrl
According to the datasheet[1]
Register 0x06h Description: RmpCtrl (REGISTER ADDRESS: 0x06h Read/Write)
BIT[5..7]:
RMP[2:0] Output voltage ramp timing
D7-D5 Slope
000 32mV/us
001 16mV/us
010 8mV/us
...
110 0.5mV/us
111 0.25mV/us
Thus to get correct ramp_ctrl value, we need to right-shift 5 bits.
[1] http://www.ti.com/lit/ds/symlink/tps62360.pdf
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
diff --git a/drivers/regulator/tps62360-regulator.c b/drivers/regulator/tps62360-regulator.c
index acbd63f..612919c 100644
--- a/drivers/regulator/tps62360-regulator.c
+++ b/drivers/regulator/tps62360-regulator.c
@@ -278,7 +278,7 @@
__func__, REG_RAMPCTRL, ret);
return ret;
}
- ramp_ctrl = (ramp_ctrl >> 4) & 0x7;
+ ramp_ctrl = (ramp_ctrl >> 5) & 0x7;
/* ramp mV/us = 32/(2^ramp_ctrl) */
tps->desc.ramp_delay = DIV_ROUND_UP(32000, BIT(ramp_ctrl));