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SubjectRe: [PATCH] extcon: palmas: add support for using VBUSDET output
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Hi,

On Sat, Nov 21, 2015 at 12:05 AM, Chanwoo Choi <cwchoi00@gmail.com> wrote:
> Hi Felipe,
>
> On Fri, Nov 20, 2015 at 11:37 PM, Felipe Balbi <balbi@ti.com> wrote:
>>
>> Hi Chanwoo,
>>
>> Chanwoo Choi <cw00.choi@samsung.com> writes:
>>> Hi Felipe,
>>>
>>> On 2015년 11월 20일 14:33, Chanwoo Choi wrote:
>>>> Hi Felipe,
>>>>
>>>> Looks good to me. But I have one comment.
>>>>
>>>> On 2015년 11월 13일 02:57, Felipe Balbi wrote:
>>>>> TPS659038 can remux its GPIO_1 as VBUSDET output,
>>>>> which can be tied to a SoC GPIO and used as a VBUS
>>>>> interrupt.
>>>>>
>>>>> Beagle X15 uses that, in fact, and without it, I
>>>>> could not get USB peripheral working with that
>>>>> board.
>>>>>
>>>>> Signed-off-by: Felipe Balbi <balbi@ti.com>
>>>>> ---
>>>>> drivers/extcon/extcon-palmas.c | 22 ++++++++++++++++++++--
>>>>> 1 file changed, 20 insertions(+), 2 deletions(-)
>>>>>
>>>>> diff --git a/drivers/extcon/extcon-palmas.c b/drivers/extcon/extcon-palmas.c
>>>>> index 93c30a885740..7985d092c069 100644
>>>>> --- a/drivers/extcon/extcon-palmas.c
>>>>> +++ b/drivers/extcon/extcon-palmas.c
>>>>> @@ -296,10 +296,28 @@ static int palmas_usb_probe(struct platform_device *pdev)
>>>>> }
>>>>>
>>>>> if (palmas_usb->enable_vbus_detection) {
>>>>> + int irq = platform_get_irq(pdev, 0);
>>>>> +
>>>>> + if (irq > 0) {
>>>>> + /* remux GPIO_1 as VBUSDET */
>>>>> + status = palmas_update_bits(palmas, PALMAS_PU_PD_OD_BASE,
>>>>> + PALMAS_PRIMARY_SECONDARY_PAD1,
>>>>> + PALMAS_PRIMARY_SECONDARY_PAD1_GPIO_1_MASK,
>>>>> + (1 << 3));
>>>>
>>>> PALMAS_PRIMARY_SECONDARY_PAD1_GPIO_1_SHIFT is appropriate instead of
>>>> using '3'.
>>
>> good point :-)
>>
>>>>> + if (status < 0) {
>>>>> + dev_err(&pdev->dev, "can't remux GPIO1\n");
>>>>> + return status;
>>>>> + }
>>>>> +
>>>>> + palmas_usb->vbus_irq = irq;
>>>>> + } else {
>>>>> + irq = regmap_irq_get_virq(palmas->irq_data,
>>>>> + PALMAS_VBUS_IRQ);
>>>>> + palmas_usb->vbus_irq = irq;
>>>>> + }
>>>>> +
>>>>> palmas_usb->vbus_otg_irq = regmap_irq_get_virq(palmas->irq_data,
>>>>> PALMAS_VBUS_OTG_IRQ);
>>>>> - palmas_usb->vbus_irq = regmap_irq_get_virq(palmas->irq_data,
>>>>> - PALMAS_VBUS_IRQ);
>>>>> status = devm_request_threaded_irq(palmas_usb->dev,
>>>>> palmas_usb->vbus_irq, NULL,
>>>>> palmas_vbus_irq_handler,
>>>>>
>>>>
>>>> Thanks,
>>>> Chanwoo Choi
>>>> --
>>>> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
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>>>> More majordomo info at http://vger.kernel.org/majordomo-info.html
>>>> Please read the FAQ at http://www.tux.org/lkml/
>>>>
>>>
>>> If you are OK about following patch, I'll apply it on extcon branch.
>>
>> that's perfect, thanks for fixing it :-)
>
> Applied it.

Please ignore this reply about applies because I need to discuss about it.

Thanks,
Chanwoo Choi


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