On Monday 06 November 2017 03:22 PM, Keerthy wrote:
>
>
> On Tuesday 31 October 2017 04:18 PM, Lee Jones wrote:
>> On Tue, 24 Oct 2017, Keerthy wrote:
>>
>>> The powerhold mask for TPS65917 is different when comapred to
>>> the other palmas versions. Hence assign the right mask that enables
>>> power off of tps65917 pmic correctly.
>>>
>>> Signed-off-by: Keerthy <[email protected]>
>>> ---
>>> drivers/mfd/palmas.c | 10 +++++++++-
>>> include/linux/mfd/palmas.h | 3 +++
>>> 2 files changed, 12 insertions(+), 1 deletion(-)
>>>
>>> diff --git a/drivers/mfd/palmas.c b/drivers/mfd/palmas.c
>>> index 3922a93..663a239 100644
>>> --- a/drivers/mfd/palmas.c
>>> +++ b/drivers/mfd/palmas.c
>>> @@ -430,6 +430,7 @@ static void palmas_power_off(void)
>>> {
>>> unsigned int addr;
>>> int ret, slave;
>>> + u8 powerhold_mask;
>>> struct device_node *np = palmas_dev->dev->of_node;
>>>
>>> if (of_property_read_bool(np, "ti,palmas-override-powerhold")) {
>>> @@ -437,8 +438,15 @@ static void palmas_power_off(void)
>>> PALMAS_PRIMARY_SECONDARY_PAD2);
>>> slave = PALMAS_BASE_TO_SLAVE(PALMAS_PU_PD_OD_BASE);
>>>
>>> + if (of_device_is_compatible(np, "ti,tps65917"))
>>
>> Is it possible to interrogate the device itself, rather than DT?
>
> You mean using driver data tagged with compatibles?
I guess you meant interrogating by i2c register red like revision
register, i am afraid no such register to distinguish hence went by the
compatible.
Regards,
Keerthy
>
>>
>>> + powerhold_mask =
>>> + TPS65917_PRIMARY_SECONDARY_PAD2_GPIO_5_MASK;
>>> + else
>>> + powerhold_mask =
>>> + PALMAS_PRIMARY_SECONDARY_PAD2_GPIO_7_MASK;
>>> +
>>> ret = regmap_update_bits(palmas_dev->regmap[slave], addr,
>>> - PALMAS_PRIMARY_SECONDARY_PAD2_GPIO_7_MASK, 0);
>>> + powerhold_mask, 0);
>>> if (ret)
>>> dev_err(palmas_dev->dev,
>>> "Unable to write PRIMARY_SECONDARY_PAD2 %d\n",
>>> diff --git a/include/linux/mfd/palmas.h b/include/linux/mfd/palmas.h
>>> index 6dec438..cffb23b 100644
>>> --- a/include/linux/mfd/palmas.h
>>> +++ b/include/linux/mfd/palmas.h
>>> @@ -3733,6 +3733,9 @@ enum usb_irq_events {
>>> #define TPS65917_REGEN3_CTRL_MODE_ACTIVE 0x01
>>> #define TPS65917_REGEN3_CTRL_MODE_ACTIVE_SHIFT 0x00
>>>
>>> +/* POWERHOLD Mask field for PRIMARY_SECONDARY_PAD2 register */
>>> +#define TPS65917_PRIMARY_SECONDARY_PAD2_GPIO_5_MASK 0xC
>>> +
>>> /* Registers for function RESOURCE */
>>> #define TPS65917_REGEN1_CTRL 0x2
>>> #define TPS65917_PLLEN_CTRL 0x3
>>
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