linux-kernel - Re: [PATCH] extcon: qcom-spmi-misc: Sync the extcon state on interrupt

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Date:   Wed, 19 Oct 2016 19:11:46 +0900
From:   Chanwoo Choi <cw00.choi@...sung.com>
To:     Stephen Boyd <stephen.boyd@...aro.org>
Cc:     linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-arm-msm@...r.kernel.org
Subject: Re: [PATCH] extcon: qcom-spmi-misc: Sync the extcon state on interrupt

Hi Stephen,

On 2016년 10월 18일 09:16, Stephen Boyd wrote:
> The driver was changed after submission to use the new style APIs
> like extcon_set_state(). Unfortunately, that only sets the state,
> and doesn't notify any consumers that the cable state has
> changed. Use extcon_set_state_sync() here instead so that we
> notify cable consumers of the state change. This fixes USB
> host-device role switching on the db8074 platform.
> 
> Fixes: 38085c987f52 ("extcon: Add support for qcom SPMI PMIC USB id detection hardware")
> Signed-off-by: Stephen Boyd <stephen.boyd@...aro.org>
> ---
>  drivers/extcon/extcon-qcom-spmi-misc.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/extcon/extcon-qcom-spmi-misc.c b/drivers/extcon/extcon-qcom-spmi-misc.c
> index ca957a5f4291..b8cde096a808 100644
> --- a/drivers/extcon/extcon-qcom-spmi-misc.c
> +++ b/drivers/extcon/extcon-qcom-spmi-misc.c
> @@ -51,7 +51,7 @@ static void qcom_usb_extcon_detect_cable(struct work_struct *work)
>  	if (ret)
>  		return;
>  
> -	extcon_set_state(info->edev, EXTCON_USB_HOST, !id);
> +	extcon_set_state_sync(info->edev, EXTCON_USB_HOST, !id);
>  }
>  
>  static irqreturn_t qcom_usb_irq_handler(int irq, void *dev_id)
> 

Applied it.

Best Regards,
Chanwoo Choi