From c8fda5bfa9972dc1175b898dfdaa3a375dca6022 Mon Sep 17 00:00:00 2001 From: Marcel Ziswiler Date: Tue, 3 Jul 2018 17:04:11 +0200 Subject: mfd: as3722: Disable auto-power-on when AC OK On ams AS3722, power on when AC OK is enabled by default. Making this option as disable by default and enable only when platform need this explicitly. Signed-off-by: Laxman Dewangan Reviewed-by: Bibek Basu Tested-by: Bibek Basu Signed-off-by: Marcel Ziswiler Acked-by: Rob Herring Signed-off-by: Lee Jones --- drivers/mfd/as3722.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'drivers/mfd') diff --git a/drivers/mfd/as3722.c b/drivers/mfd/as3722.c index f87342c211bc..4d069ed21ff6 100644 --- a/drivers/mfd/as3722.c +++ b/drivers/mfd/as3722.c @@ -349,6 +349,8 @@ static int as3722_i2c_of_probe(struct i2c_client *i2c, "ams,enable-internal-int-pullup"); as3722->en_intern_i2c_pullup = of_property_read_bool(np, "ams,enable-internal-i2c-pullup"); + as3722->en_ac_ok_pwr_on = of_property_read_bool(np, + "ams,enable-ac-ok-power-on"); as3722->irq_flags = irqd_get_trigger_type(irq_data); dev_dbg(&i2c->dev, "IRQ flags are 0x%08lx\n", as3722->irq_flags); return 0; @@ -360,6 +362,7 @@ static int as3722_i2c_probe(struct i2c_client *i2c, struct as3722 *as3722; unsigned long irq_flags; int ret; + u8 val = 0; as3722 = devm_kzalloc(&i2c->dev, sizeof(struct as3722), GFP_KERNEL); if (!as3722) @@ -398,6 +401,15 @@ static int as3722_i2c_probe(struct i2c_client *i2c, if (ret < 0) return ret; + if (as3722->en_ac_ok_pwr_on) + val = AS3722_CTRL_SEQU1_AC_OK_PWR_ON; + ret = as3722_update_bits(as3722, AS3722_CTRL_SEQU1_REG, + AS3722_CTRL_SEQU1_AC_OK_PWR_ON, val); + if (ret < 0) { + dev_err(as3722->dev, "CTRLsequ1 update failed: %d\n", ret); + return ret; + } + ret = devm_mfd_add_devices(&i2c->dev, -1, as3722_devs, ARRAY_SIZE(as3722_devs), NULL, 0, regmap_irq_get_domain(as3722->irq_data)); -- cgit v1.2.3