From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755342AbcCNIso (ORCPT ); Mon, 14 Mar 2016 04:48:44 -0400 Received: from mailout4.samsung.com ([203.254.224.34]:45223 "EHLO mailout4.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754856AbcCNIse convert rfc822-to-8bit (ORCPT ); Mon, 14 Mar 2016 04:48:34 -0400 X-AuditID: cbfee68f-f793a6d000001364-15-56e67ae004a5 MIME-version: 1.0 Content-type: text/plain; charset=UTF-8 Content-transfer-encoding: 8BIT Message-id: <56E67AE0.9060306@samsung.com> Date: Mon, 14 Mar 2016 17:48:32 +0900 From: Chanwoo Choi User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.6.0 To: Krzysztof Kozlowski , kgene@kernel.org, s.nawrocki@samsung.com, tomasz.figa@gmail.com Cc: jh80.chung@samsung.com, andi.shyti@samsung.com, inki.dae@samsung.com, sw0312.kim@samsung.com, pankaj.dubey@samsung.com, linux-samsung-soc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org Subject: Re: [PATCH 09/10] ARM: dts: Add MSHC2 dt node for SD card for exynos3250-artik5-devel board References: <1457921056-21257-1-git-send-email-cw00.choi@samsung.com> <1457921056-21257-11-git-send-email-cw00.choi@samsung.com> <56E676EE.8060500@samsung.com> In-reply-to: <56E676EE.8060500@samsung.com> X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFrrBIsWRmVeSWpSXmKPExsWyRsSkUPdB1bMwg8u3xC22H3nGajH/yDlW i0n3J7BY3PjVxmrx+oWhRf/j18wWmx5fY7W4vGsOm8WM8/uYLBZt/cJucfhNO6vFjMkv2SxW 7frD6MDrsXPWXXaPTas62Tw2L6n36NuyitHj8ya5ANYoLpuU1JzMstQifbsEroxtc8wLjvFU rN+9jLGB8QBXFyMnh4SAiUT76s/MELaYxIV769m6GLk4hARWMEp8bF7KBlM08+ERdojELEaJ K5fnsYMkeAUEJX5MvscCYjMLqEtMmreIGcIWkVjw9jkjhK0tsWzha2aI5geMEud+d7JCNGtJ XGqcCVbEIqAqMWNeE5jNBhTf/+IG0GYODlGBCInuE5UgYRGBEom9j6eAHcEs0MwkcXfNKiaQ hLBAmsTCK6ugrlvMKDFn7jOwQZxAm5su3AXbLCHQyiHxrWUb1DYBiW+TD7GAbJAQkJXYdADq f0mJgytusExgFJ+F5LlZSJ6bheS5WUieW8DIsopRNLUguaA4Kb3IWK84Mbe4NC9dLzk/dxMj MMJP/3vWv4Px7gHrQ4wCHIxKPLyeds/ChFgTy4orcw8xmgJdNJFZSjQ5H5hG8kriDY3NjCxM TUyNjcwtzZTEeRdK/QwWEkhPLEnNTk0tSC2KLyrNSS0+xMjEwSnVwCi/94N4XtO62RoedzZO P1bW1LjlIhfXZHP3eRlffr5Sf2Ece8PQkn2b+7SsW7xBp9TuMjtO2yZQY+XF/+leretdja++ h5PMI6Y78X5xKDlb9EDBcJ50yKJ5JYZtckc3nU112u7s6Tfn3uatjy3Eml09w34Wc8ovv+IU Z3onMLh03buT2z6Jv1diKc5INNRiLipOBAC6/zeI6wIAAA== X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFuphleLIzCtJLcpLzFFi42I5/e+xoO6DqmdhBg/vClpsP/KM1WL+kXOs FpPuT2CxuPGrjdXi9QtDi/7Hr5ktNj2+xmpxedccNosZ5/cxWSza+oXd4vCbdlaLGZNfslms 2vWH0YHXY+esu+wem1Z1snlsXlLv0bdlFaPH501yAaxRDYw2GamJKalFCql5yfkpmXnptkre wfHO8aZmBoa6hpYW5koKeYm5qbZKLj4Bum6ZOUA3KimUJeaUAoUCEouLlfTtME0IDXHTtYBp jND1DQmC6zEyQAMJaxgz+v40sBfM4qm48XszWwPjFK4uRk4OCQETiZkPj7BD2GISF+6tZ+ti 5OIQEpjFKHHl8jywBK+AoMSPyfdYuhg5OJgF5CWOXMoGCTMLqEtMmreIGaL+AaPEud+drBD1 WhKXGmcygtgsAqoSM+Y1gdlsQPH9L26wgcwRFYiQ6D5RCRIWESiR2Pt4CjvIHGaBZiaJu2tW MYEkhAXSJBZeWcUOsWAxo8Scuc/ABnEKaEs0XbjLPIER6EyE+2Yh3DcLyX0LGJlXMUqkFiQX FCel5xrlpZbrFSfmFpfmpesl5+duYgSnhGfSOxgP73I/xCjAwajEw/tjzdMwIdbEsuLK3EOM EhzMSiK8vo7PwoR4UxIrq1KL8uOLSnNSiw8xmgI9OJFZSjQ5H5iu8kriDY1NzIwsjcwNLYyM zZXEeR//XxcmJJCeWJKanZpakFoE08fEwSnVwKgRZNq1jG37a1YpfZsngg7XeOY2n8mb2r20 RcP8aRuX7MLrp/m5fycvNl+/UXlBnazmnen1a76vvMuS+vPeAa9r/2/Mtk7xm9xwYaKPDK/w gaNm54oEbt2dvWXvYyaBcM3LWU3/qzp5k30XaDTkHnvX90nBS9pkVivzlCXT7jDytk94Gvbt qpESS3FGoqEWc1FxIgB0d3EmHwMAAA== DLP-Filter: Pass X-MTR: 20000000000000000@CPGS X-CFilter-Loop: Reflected Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 2016년 03월 14일 17:31, Krzysztof Kozlowski wrote: > On 14.03.2016 11:04, Chanwoo Choi wrote: >> From: Jaehoon Chung >> >> This patch adds MSHC (Mobile Storage Host Controller) dt node for >> Exynos3250 SoC. MSHC is an interface between the system and the SD card >> >> Signed-off-by: Jaehoon Chung >> Signed-off-by: Chanwoo Choi >> --- >> arch/arm/boot/dts/exynos3250-artik5-devel.dts | 16 ++++++++++++++++ >> 1 file changed, 16 insertions(+) >> >> diff --git a/arch/arm/boot/dts/exynos3250-artik5-devel.dts b/arch/arm/boot/dts/exynos3250-artik5-devel.dts >> index d17c28969118..a371baf8536d 100644 >> --- a/arch/arm/boot/dts/exynos3250-artik5-devel.dts >> +++ b/arch/arm/boot/dts/exynos3250-artik5-devel.dts >> @@ -21,6 +21,22 @@ >> "samsung,exynos3250", "samsung,exynos3"; >> }; >> >> +&mshc_2 { >> + num-slots = <1>; >> + cap-sd-highspeed; >> + disable-wp; >> + card-detect-delay = <200>; >> + clock-frequency = <100000000>; >> + clock-freq-min-max = <400000 100000000>; >> + samsung,dw-mshc-ciu-div = <1>; >> + samsung,dw-mshc-sdr-timing = <0 1>; >> + samsung,dw-mshc-ddr-timing = <1 2>; >> + pinctrl-names = "default"; >> + pinctrl-0 = <&sd2_cmd &sd2_clk &sd2_cd &sd2_bus1 &sd2_bus4>; >> + bus-width = <4>; >> + status = "okay"; > > vqmmc-supply = ldo3? ldo3 is always on state because ldo3 is used for various IP in exynos3250. I think that we had better to remain always on state for ldo3. Best Regards, Chanwoo Choi