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[2003:e4:1f1c:800:f22f:74ff:fe1f:3a53]) by smtp.gmail.com with ESMTPSA id q15-20020a17090676cf00b00947c0cecceasm6686365ejn.206.2023.04.05.05.26.39 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 05 Apr 2023 05:26:40 -0700 (PDT) Date: Wed, 5 Apr 2023 14:26:38 +0200 From: Thierry Reding To: Akhil R Cc: christian.koenig@amd.com, digetx@gmail.com, jonathanh@nvidia.com, ldewangan@nvidia.com, linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org, linux-tegra@vger.kernel.org, sumit.semwal@linaro.org, wsa@kernel.org Subject: Re: [PATCH v4 2/2] i2c: tegra: Share same DMA channel for RX and TX Message-ID: References: <20230324115924.64218-1-akhilrajeev@nvidia.com> <20230324115924.64218-3-akhilrajeev@nvidia.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="hGLpMWdudz37EMFO" Content-Disposition: inline In-Reply-To: <20230324115924.64218-3-akhilrajeev@nvidia.com> User-Agent: Mutt/2.2.10 (2023-03-25) Precedence: bulk List-ID: X-Mailing-List: linux-tegra@vger.kernel.org --hGLpMWdudz37EMFO Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Fri, Mar 24, 2023 at 05:29:24PM +0530, Akhil R wrote: > Allocate only one DMA channel for I2C and share it for both TX and RX > instead of using two different DMA hardware channels with the same > slave ID. Since I2C supports only half duplex, there is no impact on > perf with this. >=20 > Signed-off-by: Akhil R > --- > drivers/i2c/busses/i2c-tegra.c | 69 ++++++++++------------------------ > 1 file changed, 20 insertions(+), 49 deletions(-) Looks good: Acked-by: Thierry Reding --hGLpMWdudz37EMFO Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEiOrDCAFJzPfAjcif3SOs138+s6EFAmQtaP4ACgkQ3SOs138+ s6EamhAAv4b1zBgK/e6dZi4UXAcYvW4zrOPbfafutYP0oaj3V967WmuhGo2LN7Ij p1ZmekWO7XPjj/ryNETIQAYWYAotdQMJkjLvVgz10Jp7iNXcn2mbrk1Frs7tQIZk FJW1fCZEmpoM2tz2rxpf/+DAG1QcaRJMzuAKMRBCCjN5StRlZpOIOTrehafY1dWF IF2bPQso0SC6dz1UTLnxwECd4Ir7tElMShUNSPqy0vRq/q+9TqAFFxlQo5BgOoXo +wl5nPp7D5O7UiW0fs4xcFksIp0kxyLr06O0NtQ5NxkSp3W2Nrb863hkWnm3fELy mcj0y+y0+JnJvU9KTRi8D+HtitRFdWl/wg1ZVZPH4rqjpcu0LmEWrvSiBLe4mV+K Ft0jP8K9yZZ+gow6tn1l5MdxXiMBDc2vstSYxMxFjB9p/yfPWyWNGd0+3ET+RaXU fvgm+Ao5MaXC2a6vxB8GBejaoR71Mr2Hv0P5tAhIQ4iVUZoyuBo0dzBC847oHJg4 rW8wpPPgscPX2To+Ss33TGv/WmO80pRiE8ycEUSCixV2Fj2W4/7SM0a8mgwGFGMy UrWcbSNFFmf49GECos96cNBp4yNntUA6gazLphd4a0AUTA3SwhKyMlAhBxSSzvP4 NQjOAyov6rsmux+wF9N4j4U3w8+/1fP8+pkbX83rOKLpAIqR/gA= =k57D -----END PGP SIGNATURE----- --hGLpMWdudz37EMFO--