From: shawn.guo@linaro.org (Shawn Guo)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] ARM: dts: imx51-babbage: Fix ULPI PHY reset modelling
Date: Tue, 6 Jan 2015 20:43:45 +0800 [thread overview]
Message-ID: <20150106124343.GM24511@dragon> (raw)
In-Reply-To: <1420478348-2754-1-git-send-email-fabio.estevam@freescale.com>
On Mon, Jan 05, 2015 at 03:19:08PM -0200, Fabio Estevam wrote:
> GPIO2_5 is the reset GPIO for the USB3317 ULPI PHY. Instead of modelling it as
> a regulator, the correct approach is to use the 'reset_gpios' property of the
> "usb-nop-xceiv" node.
>
> GPIO1_7 is the reset GPIO for the USB2517 USB hub. As we currently don't have
> dt bindings to describe a HUB reset, let's keep using the regulator approach.
>
> Rename the regulator to 'reg_hub_reset' to better describe its function and bind
> it with the USB host1 port instead.
>
> USB host support has been introduced by commit 9bf206a9d13be3 ("ARM: dts:
> imx51-babbage: Add USB Host1 support"), which landed in 3.16 and it seems that
> USB has only been functional due to previous bootloader initialization.
>
> With this patch applied we can get USB host to work without relying on the
> bootloader.
>
> Cc: <stable@vger.kernel.org> # 3.16+
> Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Applied, thanks.
next prev parent reply other threads:[~2015-01-06 12:43 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-01-05 17:19 [PATCH] ARM: dts: imx51-babbage: Fix ULPI PHY reset modelling Fabio Estevam
2015-01-06 12:43 ` Shawn Guo [this message]
2015-01-06 13:36 ` Lucas Stach
2015-01-06 13:41 ` Shawn Guo
2015-01-06 13:47 ` Fabio Estevam
2015-01-06 13:54 ` Lucas Stach
2015-01-06 13:59 ` Fabio Estevam
2015-01-06 14:03 ` Lucas Stach
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