Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]


Groups > linux.kernel > #1364633

Re: [PATCH] usb: gadget: fsl_udc_core: Fix pullup status

Path csiph.com!news.mixmin.net!weretis.net!feeder4.news.weretis.net!storethat.news.telefonica.de!telefonica.de!news.panservice.it!bofh.it!news.nic.it!robomod
From Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Newsgroups linux.kernel
Subject Re: [PATCH] usb: gadget: fsl_udc_core: Fix pullup status
Date Fri, 25 Mar 2016 12:20:03 +0100
Message-ID <rgxWz-Rf-49@gated-at.bofh.it> (permalink)
References <rgmHM-1kt-11@gated-at.bofh.it>
X-Original-To Dmitry Osipenko <digetx@gmail.com>, Felipe Balbi <balbi@kernel.org>, Li Yang <leoli@freescale.com>
Dkim-Signature v=1; a=rsa-sha256; c=relaxed/relaxed; d=cogentembedded-com.20150623.gappssmtp.com; s=20150623; h=subject:to:references:cc:from:message-id:date:user-agent :mime-version:in-reply-to:content-transfer-encoding; bh=LInrQf251gV4dg2k2GKMyDqdBo8F84Uk93oSrkFvbF8=; b=IIdIQK+abZSrFFxE6oeR4C3A1UaTt1URLU0k/xjZkevuJwYv0ACxloR1/w3tuBamoj z62GATECTBtXje1l7QB/Wdqh/GXIDuMwsxGqgo16N8hChsidgnNX26hYYtPCUH+ubUxt VIqHgGeV/0OtGU0AAovSrY0iwvOMXbz+VVfE1CnM8wSgFZSZakROuElIrRm3yoiJIBBP yjMyeBX7yKgN7U7n3cC4Lg6VYHCdKBim/jtXYGl0jYfxdgKCiKMar/Y3vYig2mBO/h8F ZVIteybE0+rCMLur5iSeLbt34KbMf/DH8o7RMp++MnW/YgyVYMAGaAbrjM3NojF6bpFZ KQrw==
X-Google-Dkim-Signature v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:subject:to:references:cc:from:message-id:date :user-agent:mime-version:in-reply-to:content-transfer-encoding; bh=LInrQf251gV4dg2k2GKMyDqdBo8F84Uk93oSrkFvbF8=; b=AxZOD5TlC6TsMMExZFzrwnM7d9RhTNje9OuOYCarspJBv8YAUxs3uzipZ5AwgFzJsV ecwzYbXNWF55ZZLSGi5neMez5OezwiyWMkv2V3B9j9ka5z42JgS+p+zP50eB4TnaAKrL b+8+XiUi2FgrOdrYdTuC6yT2D3OtxcJidiS5WTTq8swNv/FGsrnK15rivayc/eceQN42 meyUiRgH6HcA953RH0nWI1JlqlFcog8Pyp2kPk4tJ9mOVMvgPqd1Hboix+ByICXm9L+9 E19UkfgK8yfdXoRgrNwyYCnB4vDKD/kLQeRrijSd3TWcvgzF6ziXV6/qCIX15xrjHcK0 UgXQ==
X-Gm-Message-State AD7BkJJfJ/OvrlYFydbfm1ep9thZkSBbm73R4IRkdSI9o6kAyuraGYbwnbocscMSDCqcUQ==
X-Received by 10.25.212.207 with SMTP id l198mr5441414lfg.163.1458904351330; Fri, 25 Mar 2016 04:12:31 -0700 (PDT)
User-Agent Mozilla/5.0 (Windows NT 6.1; WOW64; rv:38.0) Gecko/20100101 Thunderbird/38.6.0
MIME-Version 1.0
Content-Type text/plain; charset=windows-1252; format=flowed
Content-Transfer-Encoding 7bit
Sender robomod@news.nic.it
List-ID <linux-kernel.vger.kernel.org>
X-Mailing-List linux-kernel@vger.kernel.org
Approved robomod@news.nic.it
Lines 36
Organization linux.* mail to news gateway
X-Original-Cc linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, Suresh Gupta <suresh.gupta@freescale.com>
X-Original-Date Fri, 25 Mar 2016 14:12:29 +0300
X-Original-Message-ID <56F51D1D.8020804@cogentembedded.com>
X-Original-References <1458861242-3906-1-git-send-email-digetx@gmail.com>
X-Original-Sender linux-kernel-owner@vger.kernel.org
Xref csiph.com linux.kernel:1364633

Show key headers only | View raw


Hello.

On 3/25/2016 2:14 AM, Dmitry Osipenko wrote:

> udc->softconnect should be set regardless of the VBUS state, otherwise
> the USB peripheral device, connected during suspend, won't be detected
> since can_pullup() would return false the UDC controller won't be enabled.
>
> Fixes: 252455c40316 (usb: gadget: fsl driver pullup fix)
> Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
> ---
>   drivers/usb/gadget/udc/fsl_udc_core.c | 3 ++-
>   1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/usb/gadget/udc/fsl_udc_core.c b/drivers/usb/gadget/udc/fsl_udc_core.c
> index aab5221..118cf7a 100644
> --- a/drivers/usb/gadget/udc/fsl_udc_core.c
> +++ b/drivers/usb/gadget/udc/fsl_udc_core.c
> @@ -1220,10 +1220,11 @@ static int fsl_pullup(struct usb_gadget *gadget, int is_on)
>
>   	udc = container_of(gadget, struct fsl_udc, gadget);
>
> +	udc->softconnect = (is_on != 0);

    !!is_on? Parens not needed anyway though.

> +
>   	if (!udc->vbus_active)
>   		return -EOPNOTSUPP;
>
> -	udc->softconnect = (is_on != 0);
>   	if (can_pullup(udc))
>   		fsl_writel((fsl_readl(&dr_regs->usbcmd) | USB_CMD_RUN_STOP),
>   				&dr_regs->usbcmd);

MBR, Sergei

Back to linux.kernel | Previous | NextPrevious in thread | Next in thread | Find similar | Unroll thread


Thread

[PATCH] usb: gadget: fsl_udc_core: Fix pullup status Dmitry Osipenko <digetx@gmail.com> - 2016-03-25 00:20 +0100
  Re: [PATCH] usb: gadget: fsl_udc_core: Fix pullup status Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> - 2016-03-25 12:20 +0100
    Re: [PATCH] usb: gadget: fsl_udc_core: Fix pullup status Dmitry Osipenko <digetx@gmail.com> - 2016-03-25 14:10 +0100

csiph-web