Return-path: Received: from mail-it0-f68.google.com ([209.85.214.68]:35584 "EHLO mail-it0-f68.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753083AbcLSWfH (ORCPT ); Mon, 19 Dec 2016 17:35:07 -0500 Date: Mon, 19 Dec 2016 16:35:04 -0600 From: Rob Herring To: Geoff Lansberry Cc: linux-wireless@vger.kernel.org, lauro.venancio@openbossa.org, aloisio.almeida@openbossa.org, sameo@linux.intel.com, mark.rutland@arm.com, netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, mgreer@animalcreek.com, justin@kuvee.com Subject: Re: [PATCH 2/3] NFC: trf7970a: Add device tree option of 1.8 Volt IO voltage Message-ID: <20161219223504.ttwayzpfvdumgouu@rob-hp-laptop> (sfid-20161219_233627_672561_FD72E55A) References: <1481841044-4314-1-git-send-email-glansberry@gmail.com> <1481841044-4314-2-git-send-email-glansberry@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii In-Reply-To: <1481841044-4314-2-git-send-email-glansberry@gmail.com> Sender: linux-wireless-owner@vger.kernel.org List-ID: On Thu, Dec 15, 2016 at 05:30:43PM -0500, Geoff Lansberry wrote: > From: Geoff Lansberry > > --- > Documentation/devicetree/bindings/net/nfc/trf7970a.txt | 2 ++ > drivers/nfc/trf7970a.c | 13 ++++++++++++- > 2 files changed, 14 insertions(+), 1 deletion(-) > > diff --git a/Documentation/devicetree/bindings/net/nfc/trf7970a.txt b/Documentation/devicetree/bindings/net/nfc/trf7970a.txt > index 9dda879..208f045 100644 > --- a/Documentation/devicetree/bindings/net/nfc/trf7970a.txt > +++ b/Documentation/devicetree/bindings/net/nfc/trf7970a.txt > @@ -21,6 +21,7 @@ Optional SoC Specific Properties: > - t5t-rmb-extra-byte-quirk: Specify that the trf7970a has the erratum > where an extra byte is returned by Read Multiple Block commands issued > to Type 5 tags. > +- vdd_io_1v8: Set to specify that the trf7970a io voltage should be set to 1.8V Use the regulator binding and provide a fixed 1.8V supply. > - crystal_27mhz: Set to specify that the input frequency to the trf7970a is 27.12MHz > > > @@ -45,6 +46,7 @@ Example (for ARM-based BeagleBone with TRF7970A on SPI1): > irq-status-read-quirk; > en2-rf-quirk; > t5t-rmb-extra-byte-quirk; > + vdd_io_1v8; > crystal_27mhz; > status = "okay"; > };