diff options
| author | Amaury Pouly <amaury.pouly@gmail.com> | 2014-02-10 22:34:18 +0100 |
|---|---|---|
| committer | Amaury Pouly <amaury.pouly@gmail.com> | 2014-02-10 23:14:27 +0100 |
| commit | 68163e8f4974545a33de236139b5995883df7a17 (patch) | |
| tree | 1e0f13dd3fc58e8726d96bc9e4a7d8d77c56d010 | |
| parent | e1003b1536091a7bdc421e05bd9eefcddd366bfe (diff) | |
imx233: don"t be smart when waiting for voltage stabilisation
Unfortunately the hardware is not very helpful when changing voltage: in DCDC
mode we have the DC_OK_IRQ but in linear regulator mode, the only available
bit doesn't work when lowering the voltages. At the moment, simply sleep for a
little while before a better solution is found.
Change-Id: I89335873e9e42e5c6e9131f40db7839b008c021c
| -rw-r--r-- | firmware/target/arm/imx233/power-imx233.c | 8 |
1 files changed, 1 insertions, 7 deletions
diff --git a/firmware/target/arm/imx233/power-imx233.c b/firmware/target/arm/imx233/power-imx233.c index 9ad8734823..0a4482fa08 100644 --- a/firmware/target/arm/imx233/power-imx233.c +++ b/firmware/target/arm/imx233/power-imx233.c @@ -383,13 +383,7 @@ void imx233_power_set_regulator(enum imx233_regulator_t reg, unsigned value_mv, * Otherwise it is unreliable (doesn't work when lowering voltage on linregs) * It usually takes between 0.5ms and 2.5ms */ #if IMX233_SUBTARGET >= 3700 - if(!BF_RD(POWER_5VCTRL, ENABLE_DCDC)) - panicf("regulator %d: wait for voltage stabilize in linreg mode !", reg); - unsigned timeout = current_tick + (HZ * 20) / 1000; - while(!BF_RD(POWER_CTRL, DC_OK_IRQ) || !TIME_AFTER(current_tick, timeout)) - yield(); - if(!BF_RD(POWER_CTRL, DC_OK_IRQ)) - panicf("regulator %d: failed to stabilize", reg); + sleep(1); #else if(!BF_RD(POWER_5VCTRL, EN_DCDC1) || !BF_RD(POWER_5VCTRL, EN_DCDC2)) panicf("regulator %d: wait for voltage stabilize in linreg mode !", reg); |