On Thu, 10 Nov 2016, Keerthy wrote:
> POWERHOLD signal has higher priority over the DEV_ON bit.
> So power off will not happen if the POWERHOLD is held high.
> Hence reset the MUX to GPIO_7 mode to release the POWERHOLD
> and the DEV_ON bit to take effect to power off the PMIC.
>
> PMIC Power off happens in dire situations like thermal shutdown
> so irrespective of the POWERHOLD setting go ahead and turn off
> the powerhold. Currently poweroff is broken on boards that have
> powerhold enabled. This fixes poweroff on those boards.
>
> Signed-off-by: Keerthy <j-keerthy@xxxxxx>
> ---
>
> Changes in v2:
>
> * Changed pr_err to dev_err
> * removed redundant boolean variable override-powerhold
>
> drivers/mfd/palmas.c | 14 ++++++++++++++
> 1 file changed, 14 insertions(+)
Applied, thanks.
> diff --git a/drivers/mfd/palmas.c b/drivers/mfd/palmas.c
> index ee9e9ea..da90124 100644
> --- a/drivers/mfd/palmas.c
> +++ b/drivers/mfd/palmas.c
> @@ -430,6 +430,20 @@ static void palmas_power_off(void)
> {
> unsigned int addr;
> int ret, slave;
> + struct device_node *np = palmas_dev->dev->of_node;
> +
> + if (of_property_read_bool(np, "ti,palmas-override-powerhold")) {
> + addr = PALMAS_BASE_TO_REG(PALMAS_PU_PD_OD_BASE,
> + PALMAS_PRIMARY_SECONDARY_PAD2);
> + slave = PALMAS_BASE_TO_SLAVE(PALMAS_PU_PD_OD_BASE);
> +
> + ret = regmap_update_bits(palmas_dev->regmap[slave], addr,
> + PALMAS_PRIMARY_SECONDARY_PAD2_GPIO_7_MASK, 0);
> + if (ret)
> + dev_err(palmas_dev->dev,
> + "Unable to write PRIMARY_SECONDARY_PAD2 %d\n",
> + ret);
> + }
>
> slave = PALMAS_BASE_TO_SLAVE(PALMAS_PMU_CONTROL_BASE);
> addr = PALMAS_BASE_TO_REG(PALMAS_PMU_CONTROL_BASE, PALMAS_DEV_CTRL);
--
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
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