From: s.hauer@pengutronix.de (Sascha Hauer)
To: linux-arm-kernel@lists.infradead.org
Subject: [patch 1/5] ehci-mxc: Enable vbus later
Date: Tue, 21 Dec 2010 10:31:32 +0100 [thread overview]
Message-ID: <20101221093132.GZ6017@pengutronix.de> (raw)
In-Reply-To: <20101220155810.708379512@rtp-net.org>
On Mon, Dec 20, 2010 at 04:48:54PM +0100, Arnaud Patard wrote:
> vbus should be enabled after usb_add_hcd() otherwise USB is not working
> on my efikamx.
There is really something wrong with the way we handle initialization of
the mxc ehci controller. There are frequently patches posted trying to
change this order, and I think we are at a point where we can't move
anymore without possibly breaking some other board. Should this be
completely board dependend in the end?
Sascha
>
> Signed-off-by: Arnaud Patard <arnaud.patard@rtp-net.org>
> Index: tst-usb/drivers/usb/host/ehci-mxc.c
> ===================================================================
> --- tst-usb.orig/drivers/usb/host/ehci-mxc.c 2010-12-20 15:38:41.000000000 +0100
> +++ tst-usb/drivers/usb/host/ehci-mxc.c 2010-12-20 15:38:43.000000000 +0100
> @@ -210,11 +210,6 @@
> ret = -ENODEV;
> goto err_add;
> }
> - ret = otg_set_vbus(pdata->otg, 1);
> - if (ret) {
> - dev_err(dev, "unable to enable vbus on transceiver\n");
> - goto err_add;
> - }
> }
>
> priv->hcd = hcd;
> @@ -224,6 +219,14 @@
> if (ret)
> goto err_add;
>
> + if (pdata->otg) {
> + ret = otg_set_vbus(pdata->otg, 1);
> + if (ret) {
> + dev_err(dev, "unable to enable vbus on transceiver\n");
> + goto err_add;
> + }
> + }
> +
> return 0;
>
> err_add:
>
>
>
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next prev parent reply other threads:[~2010-12-21 9:31 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-12-20 15:48 [patch 0/5] iMX51 usb fixes Arnaud Patard (Rtp)
2010-12-20 15:48 ` [patch 1/5] ehci-mxc: Enable vbus later Arnaud Patard (Rtp)
2010-12-21 9:31 ` Sascha Hauer [this message]
2010-12-23 20:15 ` Arnaud Patard (Rtp)
2011-01-03 14:38 ` Sascha Hauer
2010-12-20 15:48 ` [patch 2/5] ulpi: handle ULPI_OTG_CTRL_CHRGVBUS Arnaud Patard (Rtp)
2010-12-21 12:23 ` Igor Grinberg
2010-12-23 20:11 ` Arnaud Patard (Rtp)
2010-12-24 15:05 ` Igor Grinberg
2011-01-03 11:41 ` Arnaud Patard (Rtp)
2011-01-03 13:33 ` Igor Grinberg
2011-01-03 14:04 ` Arnaud Patard (Rtp)
2011-01-04 7:55 ` Igor Grinberg
2011-01-04 20:00 ` Arnaud Patard (Rtp)
2011-01-04 20:03 ` Matt Sealey
2011-01-06 7:54 ` Igor Grinberg
2011-01-07 9:02 ` Arnaud Patard (Rtp)
2011-01-10 13:45 ` Igor Grinberg
2011-01-10 14:22 ` Arnaud Patard (Rtp)
2011-01-11 7:41 ` Igor Grinberg
2010-12-20 15:48 ` [patch 3/5] arch/arm/plat-mxc/ehci.c: fix errors/typos Arnaud Patard (Rtp)
2010-12-20 15:48 ` [patch 4/5] MX51: Add support for usb host 2 Arnaud Patard (Rtp)
2010-12-20 15:48 ` [patch 5/5] mx51: fix usb clock support Arnaud Patard (Rtp)
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