From mboxrd@z Thu Jan 1 00:00:00 1970 From: swarren@wwwdotorg.org (Stephen Warren) Date: Wed, 27 Aug 2014 10:42:19 -0600 Subject: [PATCH v2 3/9] of: Update Tegra XUSB pad controller binding for USB In-Reply-To: References: <1408381705-3623-1-git-send-email-abrestic@chromium.org> <1408381705-3623-4-git-send-email-abrestic@chromium.org> <53FB8A8C.8040107@wwwdotorg.org> Message-ID: <53FE0A6B.8000607@wwwdotorg.org> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On 08/27/2014 10:36 AM, Andrew Bresticker wrote: > On Mon, Aug 25, 2014 at 12:12 PM, Stephen Warren wrote: >> On 08/18/2014 11:08 AM, Andrew Bresticker wrote: >>> - #phy-cells: Should be 1. The specifier is the index of the PHY to >>> reference. >>> See for the list of valid >>> values. >>> +- mboxes: Must contain an entry for the XUSB PHY mailbox channel. >>> + See ../mailbox/mailbox.txt for details. >> >> >> Can we require the mbox-names property here, so that everything is looked up >> by names. I know that the proposed mbox binding states that using indexes is >> preferred over names, but that's just silly considering that names are >> widely used in most other similar bindings, and are much easier to extend in >> a backwards compatible fashion in the face of optional entries. As such, I'd >> prefer that all Tegra bindings use foo-names properties where they exist. > > Sure, will do. > >>> +Optional properties: >>> +------------------- >>> +- vbus-otg-{0,1,2}-supply: VBUS regulator for the corresponding UTMI pad. >> >> >> Why "-otg"? It's quite possible to have a regulator for VBUS even on systems >> that don't support OTG, but rather simply have the ability to turn VBUS off. > > Because they're the VBUS supplies for the OTG 'lanes'. It doesn't > really add anything, so I'll omit the "-otg". Ah right. In that case, if the lanes are named "OTG" lanes in the HW docs, I'm happy either way. If you did decide to keep the "-otg", rewording as "VBUS regulator for the corresponding OTG UTMI pad" would make the meaning clearer.