From mboxrd@z Thu Jan 1 00:00:00 1970 From: Benson Leung Subject: Re: [PATCH V2 2/2] mfd: cros ec: spi: Simplify delay handling between SPI messages Date: Sat, 18 Nov 2017 22:17:41 -0800 Message-ID: <20171119061741.GB51565@decatoncale.mtv.corp.google.com> References: <1510670608-19594-1-git-send-email-jonathanh@nvidia.com> <1510670608-19594-2-git-send-email-jonathanh@nvidia.com> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="2B/JsCI69OhZNC5r" Return-path: Content-Disposition: inline In-Reply-To: <1510670608-19594-2-git-send-email-jonathanh-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org> Sender: linux-tegra-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Jon Hunter Cc: Lee Jones , linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-tegra-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Brian Norris , Shawn Nematbakhsh , Benson Leung List-Id: linux-tegra@vger.kernel.org --2B/JsCI69OhZNC5r Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Hi Jon, On Tue, Nov 14, 2017 at 02:43:28PM +0000, Jon Hunter wrote: > The EC SPI driver prevents SPI transfers being to rapidly by keeping > track of the time the last transfer was issued via the > 'last_transfer_ns' variable. Previously, if the 'last_transfer_ns' > variable was zero, this indicated that no previous transfer had been > sent and that no delay was needed. However, the EC SPI driver has > been updated to always initialise the 'last_transfer_ns' variable > during probe and therefore, it is no longer necessary to test if it > is zero. Remove the code that checks if this variable is zero. >=20 > Signed-off-by: Jon Hunter > Reviewed-by: Brian Norris Acked-by: Benson Leung --=20 Benson Leung Staff Software Engineer Chrome OS Kernel Google Inc. bleung-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org Chromium OS Project bleung-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org --2B/JsCI69OhZNC5r Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAEBCgAGBQJaESIFAAoJEB8J9XsKL+ZYU9sP/iNvH+wFBVOyQxrrlNxS4Lo5 O/C3jQuKsBxQCsbLvozvKJrW6+YjWlDT1Iur7eZ+wOB1plGCJpviOkvCJOLx3bsm jlOICN/+O8MFMxv4p0BQRyHHWqiLC35Cz0WU09PB4Im2Uw7ZLmAthGD0PZnrDjNV kcBJqCVRShrw1VKRHMhABEep0ZhNR1iOPkJnBummGCAI65OQy3XFy19RBNCTL8F2 SDgtLTVhtW9HlAzBc4NrqLb4Q+pElE0WNN5NMClL+PsGBHq1cVXwLY+90NvPIZl0 gysLhi5+Js2EAmDuSaEuP5CrPqNZc8FH/rMOWbTRRnw6Hs9vvXDh71+FkpTpMJQL tuKG1rDm9BECVsDWJPKCmASw9eQvj9W3A0XCL3KklGSQmjVBYLRZSGfHhKA50iLg 8A147dHIBW3chKv/XGHuIniqD8GKm6ufQLXL+OBQGQdcOk2MV1R4qqsqcMg2BRP2 RsbJuY4nhXXZh1SZw/Ma7Oz3UBgR1dFlWwiLrK5TljVZAUSCMo6kbUCc2BqcXlTz i7ZpyD91/goKRxAZyoKfVtCmnqiIJ27ttr9lXOnnfeKlNNxPyAIbRtNG4N3T6pT1 L/LuoSLKWpS2C2o04t6L65lE6rZW2F97A69I0T6i8mQS9xQxHsiuM1sPeMXCwPTs vRWiCFjQc69Vlcy2IZhR =sD9Z -----END PGP SIGNATURE----- --2B/JsCI69OhZNC5r--