From mboxrd@z Thu Jan 1 00:00:00 1970 From: shawn.guo@linaro.org (Shawn Guo) Date: Tue, 6 Jan 2015 20:43:45 +0800 Subject: [PATCH] ARM: dts: imx51-babbage: Fix ULPI PHY reset modelling In-Reply-To: <1420478348-2754-1-git-send-email-fabio.estevam@freescale.com> References: <1420478348-2754-1-git-send-email-fabio.estevam@freescale.com> Message-ID: <20150106124343.GM24511@dragon> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org 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: # 3.16+ > Signed-off-by: Fabio Estevam Applied, thanks.