diff options
| author | Tero Kristo | 2016-08-10 17:53:55 +0530 |
|---|---|---|
| committer | Mark Brown | 2016-08-10 18:21:55 +0100 |
| commit | 23a34f9d03a5d40a6234855bc069da370708cc9e (patch) | |
| tree | 5cfb55dab22dcf39278c0194ba85c5930be33e61 | |
| parent | f11fa1796a4b4f8c6d4ced37e8824276ec57057d (diff) | |
regulator: tps65218: do not disable DCDC3 during poweroff on broken PMICs
Some versions of tps65218 do not seem to support poweroff modes properly
if DCDC3 regulator is shut-down. Thus, keep it enabled even during
poweroff if the version info matches the broken silicon revision.
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
Signed-off-by: Keerthy <j-keerthy@ti.com>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
| -rw-r--r-- | drivers/regulator/tps65218-regulator.c | 8 | ||||
| -rw-r--r-- | include/linux/mfd/tps65218.h | 5 |
2 files changed, 13 insertions, 0 deletions
diff --git a/drivers/regulator/tps65218-regulator.c b/drivers/regulator/tps65218-regulator.c index d1e631d64a20..eb0f5b13841a 100644 --- a/drivers/regulator/tps65218-regulator.c +++ b/drivers/regulator/tps65218-regulator.c @@ -180,6 +180,14 @@ static int tps65218_pmic_set_suspend_disable(struct regulator_dev *dev) if (rid < TPS65218_DCDC_1 || rid > TPS65218_LDO_1) return -EINVAL; + /* + * Certain revisions of TPS65218 will need to have DCDC3 regulator + * enabled always, otherwise an immediate system reboot will occur + * during poweroff. + */ + if (rid == TPS65218_DCDC_3 && tps->rev == TPS65218_REV_2_1) + return 0; + if (!tps->info[rid]->strobe) { if (rid == TPS65218_DCDC_3) tps->info[rid]->strobe = 3; diff --git a/include/linux/mfd/tps65218.h b/include/linux/mfd/tps65218.h index 85e464e32c43..d1db9527fab5 100644 --- a/include/linux/mfd/tps65218.h +++ b/include/linux/mfd/tps65218.h @@ -63,6 +63,11 @@ #define TPS65218_CHIPID_CHIP_MASK 0xF8 #define TPS65218_CHIPID_REV_MASK 0x07 +#define TPS65218_REV_1_0 0x0 +#define TPS65218_REV_1_1 0x1 +#define TPS65218_REV_2_0 0x2 +#define TPS65218_REV_2_1 0x3 + #define TPS65218_INT1_VPRG BIT(5) #define TPS65218_INT1_AC BIT(4) #define TPS65218_INT1_PB BIT(3) |