mail archive of the barebox mailing list
 help / color / mirror / Atom feed
From: Sascha Hauer <s.hauer@pengutronix.de>
To: Dmitry Voytik <voytikd@gmail.com>
Cc: barebox@lists.infradead.org
Subject: Re: [PATCH] usb: ehci-hcd: Correct CLEAR_FEATURE code
Date: Tue, 21 Oct 2014 12:59:10 +0200	[thread overview]
Message-ID: <20141021105910.GM14443@pengutronix.de> (raw)
In-Reply-To: <1413463940-9651-1-git-send-email-voytikd@gmail.com>

On Thu, Oct 16, 2014 at 04:52:20PM +0400, Dmitry Voytik wrote:
> This commit broke USB on olinuxino board:
> 
>   87b9bea USB: host: hub: Use usb_hub_power_on from U-Boot
> 
> This patch was ported from U-Boot with small changes. See discussion:
> http://lists.denx.de/pipermail/u-boot/2013-May/153920.html
> 
> The root cause seems to be a missing mask and missing 'break' in
> ehci-hcd.c. Fix both.
> 
> Signed-off-by: Dmitry Voytik <voytikd@gmail.com>

Applied, thanks

Sascha

> ---
>  drivers/usb/host/ehci-hcd.c | 10 ++++++----
>  1 file changed, 6 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
> index 5624552..d2e1296 100644
> --- a/drivers/usb/host/ehci-hcd.c
> +++ b/drivers/usb/host/ehci-hcd.c
> @@ -675,21 +675,23 @@ ehci_submit_root(struct usb_device *dev, unsigned long pipe, void *buffer,
>  		break;
>  	case USB_REQ_CLEAR_FEATURE | ((USB_DIR_OUT | USB_RT_PORT) << 8):
>  		reg = ehci_readl(status_reg);
> +		reg &= ~EHCI_PS_CLEAR;
>  		switch (le16_to_cpu(req->value)) {
>  		case USB_PORT_FEAT_ENABLE:
>  			reg &= ~EHCI_PS_PE;
>  			break;
>  		case USB_PORT_FEAT_C_ENABLE:
> -			reg = (reg & ~EHCI_PS_CLEAR) | EHCI_PS_PE;
> +			reg |= EHCI_PS_PEC;
>  			break;
>  		case USB_PORT_FEAT_POWER:
>  			if (HCS_PPC(ehci_readl(&ehci->hccr->cr_hcsparams)))
> -				reg = reg & ~(EHCI_PS_CLEAR | EHCI_PS_PP);
> +				reg &= ~ EHCI_PS_PP;
> +			break;
>  		case USB_PORT_FEAT_C_CONNECTION:
> -			reg = (reg & ~EHCI_PS_CLEAR) | EHCI_PS_CSC;
> +			reg |= EHCI_PS_CSC;
>  			break;
>  		case USB_PORT_FEAT_OVER_CURRENT:
> -			reg = (reg & ~EHCI_PS_CLEAR) | EHCI_PS_OCC;
> +			reg |= EHCI_PS_OCC;
>  			break;
>  		case USB_PORT_FEAT_C_RESET:
>  			ehci->portreset &= ~(1 << le16_to_cpu(req->index));
> -- 
> 1.9.1
> 
> 

-- 
Pengutronix e.K.                           |                             |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |
Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0    |
Amtsgericht Hildesheim, HRA 2686           | Fax:   +49-5121-206917-5555 |

_______________________________________________
barebox mailing list
barebox@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/barebox

      reply	other threads:[~2014-10-21 10:59 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-10-16 12:52 Dmitry Voytik
2014-10-21 10:59 ` Sascha Hauer [this message]

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20141021105910.GM14443@pengutronix.de \
    --to=s.hauer@pengutronix.de \
    --cc=barebox@lists.infradead.org \
    --cc=voytikd@gmail.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox