From mboxrd@z Thu Jan 1 00:00:00 1970 From: Rob Herring Subject: Re: [PATCH 1/2] tpm: devicetree: document properties for cr50 Date: Sun, 17 Jul 2016 08:28:01 -0500 Message-ID: <20160717132801.GA5527@rob-hp-laptop> References: <1468549218-19215-1-git-send-email-apronin@chromium.org> <1468549218-19215-2-git-send-email-apronin@chromium.org> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Content-Disposition: inline In-Reply-To: <1468549218-19215-2-git-send-email-apronin-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: tpmdd-devel-bounces-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org To: Andrey Pronin Cc: =?iso-8859-1?B?oKCgTWFyaw==?= Rutland , devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, dianders-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org, =?iso-8859-1?B?oKCgUGF3ZWw=?= Moll , =?iso-8859-1?B?oKCgSWFu?= Campbell , linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, smbarber-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org, tpmdd-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org, =?iso-8859-1?B?oKCgS3VtYXI=?= Gala , groeck-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org List-Id: devicetree@vger.kernel.org On Thu, Jul 14, 2016 at 07:20:17PM -0700, Andrey Pronin wrote: > Add TPM2.0-compatible interface to Cr50. Document its properties > in devicetree. > > Signed-off-by: Andrey Pronin > --- > .../devicetree/bindings/security/tpm/cr50_spi.txt | 30 ++++++++++++++++++++++ > 1 file changed, 30 insertions(+) > create mode 100644 Documentation/devicetree/bindings/security/tpm/cr50_spi.txt > > diff --git a/Documentation/devicetree/bindings/security/tpm/cr50_spi.txt b/Documentation/devicetree/bindings/security/tpm/cr50_spi.txt > new file mode 100644 > index 0000000..1b05e51 > --- /dev/null > +++ b/Documentation/devicetree/bindings/security/tpm/cr50_spi.txt > @@ -0,0 +1,30 @@ > +* Cr50 Chip on SPI. > + > +TCG PTP FIFO Compliant Interface to Cr50 on SPI bus. > + > +Required properties: > +- compatible: Should be "google,cr50_spi". I agree with dropping '_spi'. The interface is defined by the parent device. > +- spi-max-frequency: Maximum SPI frequency. > + > +Optional properties: > +- access-delay-msec: Required delay between subsequent transactions on SPI. There may be a standard property for this... > +- sleep-delay-msec: Time after the last SPI activity, after which the chip > + may go to sleep. > +- wake-start-delay-msec: Time after initiating wake up before the chip is > + ready to accept commands over SPI. Use the standard unit '-ms' instead of '-msec'. Do these times really vary much and need to be in DT? ------------------------------------------------------------------------------ What NetFlow Analyzer can do for you? Monitors network bandwidth and traffic patterns at an interface-level. Reveals which users, apps, and protocols are consuming the most bandwidth. Provides multi-vendor support for NetFlow, J-Flow, sFlow and other flows. Make informed decisions using capacity planning reports.http://sdm.link/zohodev2dev