diff options
| -rw-r--r-- | drivers/regulator/max17135-regulator.c | 20 | ||||
| -rw-r--r-- | include/linux/mfd/max17135.h | 5 |
2 files changed, 11 insertions, 14 deletions
diff --git a/drivers/regulator/max17135-regulator.c b/drivers/regulator/max17135-regulator.c index 45d4501ef7a5..5ea70ef5868f 100644 --- a/drivers/regulator/max17135-regulator.c +++ b/drivers/regulator/max17135-regulator.c @@ -1,5 +1,5 @@ /* - * Copyright (C) 2010-2011 Freescale Semiconductor, Inc. All Rights Reserved. + * Copyright (C) 2010-2012 Freescale Semiconductor, Inc. All Rights Reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -284,12 +284,14 @@ static int max17135_vcom_is_enabled(struct regulator_dev *reg) static int max17135_is_power_good(struct max17135 *max17135) { - /* - * XOR of polarity (starting value) and current - * value yields whether power is good. - */ - return gpio_get_value(max17135->gpio_pmic_pwrgood) ^ - max17135->pwrgood_polarity; + unsigned int reg_val; + unsigned int fld_val; + + max17135_reg_read(REG_MAX17135_FAULT, ®_val); + fld_val = (reg_val & BITFMASK(FAULT_POK)) >> FAULT_POK_LSH; + + /* Check the POK bit */ + return fld_val; } static int max17135_wait_power_good(struct max17135 *max17135) @@ -302,6 +304,7 @@ static int max17135_wait_power_good(struct max17135 *max17135) msleep(1); } + return -ETIMEDOUT; } @@ -622,9 +625,6 @@ int max17135_register_regulator(struct max17135 *max17135, int reg, */ max17135_setup_timings(max17135); - max17135->pwrgood_polarity = - gpio_get_value(max17135->gpio_pmic_pwrgood); - max17135->init_done = true; } diff --git a/include/linux/mfd/max17135.h b/include/linux/mfd/max17135.h index 265b1588c10a..5785ed415a71 100644 --- a/include/linux/mfd/max17135.h +++ b/include/linux/mfd/max17135.h @@ -1,5 +1,5 @@ /* - * Copyright (C) 2010-2011 Freescale Semiconductor, Inc. All Rights Reserved. + * Copyright (C) 2010-2012 Freescale Semiconductor, Inc. All Rights Reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -167,9 +167,6 @@ struct max17135 { /* powerup/powerdown wait time */ int max_wait; - - /* Dynamically determined polarity for PWRGOOD */ - int pwrgood_polarity; }; enum { |