Re: [PATCH] extcon: int3496: process id-pin first so that we start with the right status
From: Chanwoo Choi
Date: Sun Feb 04 2018 - 18:40:06 EST
On 2018ë 02ì 02ì 17:10, Hans de Goede wrote:
> Hi,
>
> On 02-02-18 01:32, Chanwoo Choi wrote:
>> On 2018ë 01ì 26ì 04:39, Hans de Goede wrote:
>>> Some other drivers may be waiting for our extcon to show-up (exiting their
>>> probe methods with -EPROBE_DEFER until we show up).
>>>
>>> These drivers will typically get the cable state directly after getting
>>> the extcon, this commit changes the int3496 code to process the id-pin
>>> before registering the extcon, so that other drivers see the correct state
>>> right away.
>>>
>>> Signed-off-by: Hans de Goede <hdegoede@xxxxxxxxxx>
>>> ---
>>> drivers/extcon/extcon-intel-int3496.c | 7 ++++---
>>> 1 file changed, 4 insertions(+), 3 deletions(-)
>>>
>>> diff --git a/drivers/extcon/extcon-intel-int3496.c b/drivers/extcon/extcon-intel-int3496.c
>>> index c8691b5a9cb0..b23ee9d993a3 100644
>>> --- a/drivers/extcon/extcon-intel-int3496.c
>>> +++ b/drivers/extcon/extcon-intel-int3496.c
>>> @@ -131,6 +131,10 @@ static int int3496_probe(struct platform_device *pdev)
>>> if (IS_ERR(data->gpio_usb_mux))
>>> dev_info(dev, "can't request USB MUX GPIO\n");
>>> + /* process id-pin first so that we start with the right status */
>>> + queue_delayed_work(system_wq, &data->work, 0);
>>> + flush_delayed_work(&data->work);
>>> +
>>> /* register extcon device */
>>> data->edev = devm_extcon_dev_allocate(dev, int3496_cable);
>>> if (IS_ERR(data->edev))
>>> @@ -153,9 +157,6 @@ static int int3496_probe(struct platform_device *pdev)
>>> return ret;
>>> }
>>> - /* queue initial processing of id-pin */
>>> - queue_delayed_work(system_wq, &data->work, 0);
>>> -
>>> platform_set_drvdata(pdev, data);
>>> return 0;
>>>
>>
>> Looks good to me.
>> How about adding the 'Fixes' commit id on patch description?
>
> Right, this could use a:
>
> Fixes: 2f556bdb9f2e ("extcon: int3496: Add Intel INT3496 ACPI device extcon driver")
>
Please resend this patch Because you need to send the Linux stable mailing list.
--
Best Regards,
Chanwoo Choi
Samsung Electronics