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[217.229.16.64]) by smtp.gmail.com with ESMTPSA id b7sm2975144wrs.47.2019.01.31.04.50.15 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Thu, 31 Jan 2019 04:50:16 -0800 (PST) Date: Thu, 31 Jan 2019 13:50:15 +0100 From: Thierry Reding To: Sowjanya Komatineni Cc: jonathanh@nvidia.com, mkarthik@nvidia.com, smohammed@nvidia.com, talho@nvidia.com, linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org, linux-i2c@vger.kernel.org Subject: Re: [PATCH V8 5/5] i2c: tegra: Add I2C interface timing support Message-ID: <20190131125015.GK23438@ulmo> References: <1548915387-28826-1-git-send-email-skomatineni@nvidia.com> <1548915387-28826-5-git-send-email-skomatineni@nvidia.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="UlsYxwg8UDQn+EKZ" Content-Disposition: inline In-Reply-To: <1548915387-28826-5-git-send-email-skomatineni@nvidia.com> User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --UlsYxwg8UDQn+EKZ Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Wed, Jan 30, 2019 at 10:16:27PM -0800, Sowjanya Komatineni wrote: > This patch adds I2C interface timing registers support for > proper bus rate configuration along with meeting the i2c spec > setup and hold times based on the tuning performed on Tegra210, > Tegra186 and Tegra194 platforms. >=20 > I2C_INTERFACE_TIMING_0 register contains TLOW and THIGH field > and Tegra I2C controller design uses them as a part of internal > clock divisor. >=20 > I2C_INTERFACE_TIMING_1 register contains the setup and hold times > for start and stop conditions. >=20 > Signed-off-by: Sowjanya Komatineni > --- > [V8] : Updated to handle timing implementation within tegra_i2c_init dir= ectly > [V7] : Minor updates to timing implementation > [V5/V6] : Added this Interface timing patch in V5 of the patch series. >=20 > drivers/i2c/busses/i2c-tegra.c | 187 ++++++++++++++++++++++++++++++++++-= ------ > 1 file changed, 158 insertions(+), 29 deletions(-) Acked-by: Thierry Reding --UlsYxwg8UDQn+EKZ Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEiOrDCAFJzPfAjcif3SOs138+s6EFAlxS7wcACgkQ3SOs138+ s6EuAg//R7O3xNYPKqmFBL6WnIleMs2ii8nXNh4msfa3KTIS2p86SUSE36a2zpL2 2UoflWAc39ZMNpomvrI0NwZrUBoUWFYczEiWHtda6N3CLHzzqvLCOWUJ9Moo43Vq LiCsMJUYLonikftcCrr9ADY+9cxdAmSs4+DV4ADtZFEVAeUU+E0cd5Y8aFOUONwc yVEflqm11tID7jgwZMgszxMCAgAM5FPStc+/TdZxvUpCd2wCqzsOYYSC8HiHEbX6 /oxJ+BUTF5qeQaRIgfw0LAL3dleeIkqNIDWBk6/Pi6giNhCaDKxPfUJG/9OC34/j Fxwb0qnHSIMKDKH8i0GMPU2G00Wmcva+TgpuGfuyLoA4xEKb3ffPtRgtDQsc/xz+ kVrNrG1i/6BJKV2TJ8Pv/lmijCjSGPbK0AuPRa5J2remVRwyzkOG2jDD9LW+GZjp T5IHTl2zFXGjz+PVQK7BjA6dEbZiZpai7+MI1W0um/SHMfjqWilMkciV2P2uD3xY LQdvvZutNMnXwuYjFfM7Get4ozjzuBU/ds+FgK28Lhg4nPrtpnsQq+hKe87ACTm1 ogq/Dtg+uWgZLbDQHp4IpqbnKfjabj07fqOSKdUIXhRoR7sF2YPT7B3PmwECeS9P u/pEWi3YNIrqgqgArG5P8wCzhru7dTsI1Bw5H1FPacLp5I/91CM= =fS/Z -----END PGP SIGNATURE----- --UlsYxwg8UDQn+EKZ--