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[217.229.28.220]) by smtp.gmail.com with ESMTPSA id r9sm21658997wma.47.2020.03.23.04.06.13 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 23 Mar 2020 04:06:13 -0700 (PDT) Date: Mon, 23 Mar 2020 12:06:12 +0100 From: Thierry Reding To: Dmitry Osipenko Subject: Re: [PATCH v5 3/8] clk: tegra: Implement Tegra210 EMC clock Message-ID: <20200323110612.GE3883508@ulmo> References: <20200310152003.2945170-1-thierry.reding@gmail.com> <20200310152003.2945170-4-thierry.reding@gmail.com> <3b583202-50d0-145c-d60f-91bd646008ad@gmail.com> MIME-Version: 1.0 In-Reply-To: <3b583202-50d0-145c-d60f-91bd646008ad@gmail.com> User-Agent: Mutt/1.13.1 (2019-12-14) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200323_040616_141978_4F206FE0 X-CRM114-Status: GOOD ( 16.14 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , devicetree@vger.kernel.org, Stephen Boyd , Michael Turquette , Jon Hunter , Rob Herring , Joseph Lo , linux-tegra@vger.kernel.org, linux-clk@vger.kernel.org, linux-arm-kernel@lists.infradead.org Content-Type: multipart/mixed; boundary="===============2128181441841546040==" Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org --===============2128181441841546040== Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="Rgf3q3z9SdmXC6oT" Content-Disposition: inline --Rgf3q3z9SdmXC6oT Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Tue, Mar 10, 2020 at 07:29:42PM +0300, Dmitry Osipenko wrote: > 10.03.2020 18:19, Thierry Reding =D0=BF=D0=B8=D1=88=D0=B5=D1=82: > > From: Joseph Lo > >=20 > > The EMC clock needs to carefully coordinate with the EMC controller > > programming to make sure external memory can be properly clocked. Do so > > by hooking up the EMC clock with an EMC provider that will specify which > > rates are supported by the EMC and provide a callback to use for setting > > the clock rate at the EMC. > >=20 > > Based on work by Peter De Schrijver . > >=20 > > Signed-off-by: Joseph Lo > > Signed-off-by: Thierry Reding > > --- > > Changes in v5: > > - major rework and cleanup >=20 > ... > > +EXPORT_SYMBOL_GPL(tegra210_clk_emc_attach); > > + > > +void tegra210_clk_emc_detach(struct clk *clk) > > +{ > > + struct tegra210_clk_emc *emc =3D to_tegra210_clk_emc(__clk_get_hw(clk= )); > > + > > + emc->provider =3D NULL; > > +} > > +EXPORT_SYMBOL_GPL(tegra210_clk_emc_detach);... > > +config TEGRA210_EMC > > + bool "NVIDIA Tegra210 External Memory Controller driver" >=20 >=20 > I'd remove all the exports for now, given that the driver is built-in. I was able to make the driver work as a loadable module, so I've kept the exports where needed and made TEGRA210_EMC tristate. Thierry --Rgf3q3z9SdmXC6oT Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEiOrDCAFJzPfAjcif3SOs138+s6EFAl54mCQACgkQ3SOs138+ s6Fghw/9HFmA8d3ekqw+fFlSbracVyC8Jbzm7ovz/EMMhgzkKApEKD2G2L7GNFdZ XQiWXYuI4SANsOCnbgunpoZqi5M/zh35NvbBqQoT6pJlS1WxabPWekofZGxX9WkJ /oA5oD1gQhR3CpM+6QfgUH76surZ8LIgqlWDurqblrUeEWUftJuKa4xuhIj+7vwy B4cZYF04OqrUl5dJXKiX9qUAb2T0i6GZb9UbWIdPtzFGpxN7WfBBjuta/nbKJCqi Y4CkNqMDW3wqvj5zZrZN0/J+5SHQ2eJ26irWAn5Xrrd0N3xyIUy7/SetQ3hFsfAb Gxd9WyQA8OWDdlhdkoEHoMLXX7xBmKG7PA2LakCQxguSw2+meQUfgM7JJqS1sMLY xhqKLxu8GnMoTdwlh0LhoUAYgwYxfKrd+x+3h8qeGZAHju8nC+BrB5Pg/8gO4e3S e64USYE4iF8tLbAhD3WYLO7xFLEHWdI+bW8lqvuTWXqXqkXA1bRFrCBidwODDkb1 rj8UuNJzhOzgB7A8us/of+PlabsIsJm4Pr7zqoBUm7LEv9x9BcDCcRRf7jl+4yE5 6lq+SF+f18powYYqdHkaIQCK3ldSfUYJp+iql2mmJSreDcVl10P8m3AW/HO5mRoH do2qAyLmNX/4iNdEq5BnMtwMvgMqcfs6nWBayGmkpyjZhL+99YI= =5knT -----END PGP SIGNATURE----- --Rgf3q3z9SdmXC6oT-- --===============2128181441841546040== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel --===============2128181441841546040==--