From: Geoff Lansberry <geoff@kuvee.com>
To: Rob Herring <robh@kernel.org>
Cc: linux-wireless <linux-wireless@vger.kernel.org>,
Lauro Ramos Venancio <lauro.venancio@openbossa.org>,
Aloisio Almeida Jr <aloisio.almeida@openbossa.org>,
Samuel Ortiz <sameo@linux.intel.com>,
mark.rutland@arm.com, netdev@vger.kernel.org,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
Mark Greer <mgreer@animalcreek.com>,
Justin Bronder <justin@kuvee.com>
Subject: Re: [PATCH 2/3] NFC: trf7970a: Add device tree option of 1.8 Volt IO voltage
Date: Tue, 20 Dec 2016 11:13:23 -0500 [thread overview]
Message-ID: <CAO7Z3WLC7J+JzmtArOc-ZUNoLGeMX6s=1XQbzwB1zx1U3yTX2Q@mail.gmail.com> (raw)
In-Reply-To: <20161219223504.ttwayzpfvdumgouu@rob-hp-laptop>
On Mon, Dec 19, 2016 at 5:35 PM, Rob Herring <robh@kernel.org> wrote:
> On Thu, Dec 15, 2016 at 05:30:43PM -0500, Geoff Lansberry wrote:
>> From: Geoff Lansberry <geoff@kuvee.com>
>>
>> ---
>> 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";
>> };
Rob - using the regulator binding is new to me, but I've given it a
shot and just sent you another set of patches for your inspection.
Please let me know if this is what you had in mind.
Geoff
next prev parent reply other threads:[~2016-12-20 16:14 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-12-15 22:30 [PATCH 1/3] NFC: trf7970a: add device tree option for 27MHz clock Geoff Lansberry
2016-12-15 22:30 ` [PATCH 2/3] NFC: trf7970a: Add device tree option of 1.8 Volt IO voltage Geoff Lansberry
2016-12-16 1:13 ` Mark Greer
2016-12-19 22:35 ` Rob Herring
2016-12-20 16:13 ` Geoff Lansberry [this message]
2016-12-21 2:07 ` Mark Greer
2016-12-15 22:30 ` [PATCH 3/3] nfc: trf7970a: Prevent repeated polling from crashing the kernel Geoff Lansberry
2016-12-16 1:18 ` Mark Greer
2016-12-16 1:06 ` [PATCH 1/3] NFC: trf7970a: add device tree option for 27MHz clock Mark Greer
2016-12-19 22:31 ` Rob Herring
2016-12-19 23:23 ` Geoff Lansberry
2016-12-22 18:48 ` Rob Herring
2016-12-20 16:10 Geoff Lansberry
2016-12-20 16:10 ` [PATCH 2/3] NFC: trf7970a: Add device tree option of 1.8 Volt IO voltage Geoff Lansberry
2016-12-20 16:16 [PATCH 1/3] NFC: trf7970a: add device tree option for 27MHz clock Geoff Lansberry
2016-12-20 16:16 ` [PATCH 2/3] NFC: trf7970a: Add device tree option of 1.8 Volt IO voltage Geoff Lansberry
2016-12-21 2:23 ` Mark Greer
2016-12-21 11:47 ` Geoff Lansberry
2016-12-21 16:13 ` Mark Greer
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