Date: Sun, 12 Jun 2016 10:34:04 -0700 From: "Lundberg, Johannes" <johannes@brilliantservice.co.jp> To: Ian Lepore <ian@freebsd.org> Cc: "freebsd-mobile@freebsd.org" <freebsd-mobile@freebsd.org>, FreeBSD Current <freebsd-current@freebsd.org> Subject: Re: GPIO driver for Intel Atom SoC Message-ID: <CAASDrVk=YRNNEOxKCNgQf9f-G%2B%2BOyyC0zonruBzuF8_kXyiPEQ@mail.gmail.com> In-Reply-To: <1465751553.1188.110.camel@freebsd.org> References: <CAASDrVkw_G38J7owN-pKGOaeUCGUCodoXk84ZKF2GT5WL=3jFA@mail.gmail.com> <1465751553.1188.110.camel@freebsd.org>
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charset=UTF-8 Content-Transfer-Encoding: base64 X-Content-Filtered-By: Mailman/MimeDel 2.1.22 X-BeenThere: freebsd-mobile@freebsd.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: Mobile computing with FreeBSD <freebsd-mobile.freebsd.org> List-Unsubscribe: <https://lists.freebsd.org/mailman/options/freebsd-mobile>, <mailto:freebsd-mobile-request@freebsd.org?subject=unsubscribe> List-Archive: <http://lists.freebsd.org/pipermail/freebsd-mobile/>; List-Post: <mailto:freebsd-mobile@freebsd.org> List-Help: <mailto:freebsd-mobile-request@freebsd.org?subject=help> List-Subscribe: <https://lists.freebsd.org/mailman/listinfo/freebsd-mobile>, <mailto:freebsd-mobile-request@freebsd.org?subject=subscribe> X-List-Received-Date: Sun, 12 Jun 2016 17:48:43 -0000 VGhhbmtzIEFkcmlhbg0KDQpMb29rcyBsaWtlIHRoaXMgaXMgc29tZXRoaW5nIEkgY2FuIGJhc2Ug dGhlIG5ldyBkcml2ZXIgb24uDQpIb3BlZnVsbHkgd2l0aCB0aGlzIHdlIGNhbiBnZXQgZU1NQyBz dXBwb3J0IGZvciBJbnRlbCBTREhDSSBjb250cm9sbGVyLg0KDQpPbiBTdW4sIEp1biAxMiwgMjAx NiBhdCAxMjoxMSBBTSwgQWRyaWFuIENoYWRkIDxhZHJpYW4uY2hhZGRAZ21haWwuY29tPg0Kd3Jv dGU6DQoNCj4gVGFrZSBhIGxvb2sgYXQgd2hhdCBvbmUgb2YgdGhlIGdwaW8gY29udHJvbGxlcnMg ZG8uIEVnIGFyNzF4eF9ncGlvLmMuDQo+IFlvdSBoYXZlIHRvIGltcGxlbWVudCB0aG9zZSBtZXRo b2RzLg0KPg0KPiAoSSB0aGluayBzb21lb25lIGRpZCBhIEdQSU8gY29udHJvbGxlciB0aGluZyBm b3Igc29tZSBBTUQgQ1BVIHRvbz8pDQo+DQo+DQo+IC1hDQo+DQo+DQo+IE9uIDExIEp1bmUgMjAx NiBhdCAyMTo1OSwgTHVuZGJlcmcsIEpvaGFubmVzDQo+IDxqb2hhbm5lc0BicmlsbGlhbnRzZXJ2 aWNlLmNvLmpwPiB3cm90ZToNCj4gPiBIaQ0KPiA+DQo+ID4gSSB3YW50IHRvIHBvcnQgdGhlIHBp bmN0cmwtY2hlcnJ5dmlldyBkcml2ZXIgZnJvbSBMaW51eC4NCj4gPg0KPiA+IEkndmUgc2VlbiB0 aGVyZSBpcyB0aGUgZ3Bpb2J1cyBhbmQgYSBjb250cm9sbGVyIGdwaW9jLCBjYW4gYW55IG9mIHRo ZXNlDQo+IGJlDQo+ID4gbGV2ZXJhZ2Ugd2hlbiBwb3J0aW5nIHBpbmN0cmw/DQo+ID4NCj4gPiBX aGF0IGlzIHRoZSByZWNvbW1lbmQgd2F5IHRvIHByb2NlZWQ/DQo+ID4NCj4gPiBUaGFua3MhDQo+ ID4NCj4gPiAtLQ0KPiA+ID0tPS09LT0tPS09LT0tPS09LT0tPS09LT0tPS09LT0tPS09LT0tPS09 LT0tPS09LT0tPS09LQ0KPiA+IOenmOWvhuS/neaMgeOBq+OBpOOBhOOBpu+8muOBk+OBrumbu+Wt kOODoeODvOODq+OBr+OAgeWQjeWum+S6uuOBq+mAgeS/oeOBl+OBn+OCguOBruOBp+OBguOCiuOA geenmOWMv+eJueaoqeOBruWvvuixoeOBqOOBquOCi+aDheWgseOCkuWQq+OCk+OBp+OBhOOBvuOB meOAgg0KPiA+IOOCguOBl+OAgeWQjeWum+S6uuS7peWkluOBruaWueOBjOWPl+S/oeOBleOCjOOB n+WgtOWQiOOAgeOBk+OBruODoeODvOODq+OBruegtOajhOOAgeOBiuOCiOOBs+OBk+OBruODoeOD vOODq+OBq+mWouOBmeOCi+S4gOWIh+OBrumWi+ekuuOAgQ0KPiA+IOikh+WGmeOAgemFjeW4g+OA geOBneOBruS7luOBruWIqeeUqOOAgeOBvuOBn+OBr+iomOi8ieWGheWuueOBq+WfuuOBpeOBj+OB hOOBi+OBquOCi+ihjOWLleOCguOBleOCjOOBquOBhOOCiOOBhuOBiumhmOOBhOeUs+OBl+S4iuOB kuOBvuOBmeOAgg0KPiA+IC0tLQ0KPiA+IENPTkZJREVOVElBTElUWSBOT1RFOiBUaGUgaW5mb3Jt YXRpb24gaW4gdGhpcyBlbWFpbCBpcyBjb25maWRlbnRpYWwNCj4gPiBhbmQgaW50ZW5kZWQgc29s ZWx5IGZvciB0aGUgYWRkcmVzc2VlLg0KPiA+IERpc2Nsb3N1cmUsIGNvcHlpbmcsIGRpc3RyaWJ1 dGlvbiBvciBhbnkgb3RoZXIgYWN0aW9uIG9mIHVzZSBvZiB0aGlzDQo+ID4gZW1haWwgYnkgcGVy c29uIG90aGVyIHRoYW4gaW50ZW5kZWQgcmVjaXBpZW50LCBpcyBwcm9oaWJpdGVkLg0KPiA+IElm IHlvdSBhcmUgbm90IHRoZSBpbnRlbmRlZCByZWNpcGllbnQgYW5kIGhhdmUgcmVjZWl2ZWQgdGhp cyBlbWFpbCBpbg0KPiA+IGVycm9yLCBwbGVhc2UgZGVzdHJveSB0aGUgb3JpZ2luYWwgbWVzc2Fn ZS4NCj4gPiBfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXw0K PiA+IGZyZWVic2QtbW9iaWxlQGZyZWVic2Qub3JnIG1haWxpbmcgbGlzdA0KPiA+IGh0dHBzOi8v bGlzdHMuZnJlZWJzZC5vcmcvbWFpbG1hbi9saXN0aW5mby9mcmVlYnNkLW1vYmlsZQ0KPiA+IFRv IHVuc3Vic2NyaWJlLCBzZW5kIGFueSBtYWlsIHRvICJmcmVlYnNkLW1vYmlsZS11bnN1YnNjcmli ZUBmcmVlYnNkLm9yZw0KPiAiDQo+DQoKLS0gCj0tPS09LT0tPS09LT0tPS09LT0tPS09LT0tPS09 LT0tPS09LT0tPS09LT0tPS09LT0tPS09LQrnp5jlr4bkv53mjIHjgavjgaTjgYTjgabvvJrjgZPj ga7pm7vlrZDjg6Hjg7zjg6vjga/jgIHlkI3lrpvkurrjgavpgIHkv6HjgZfjgZ/jgoLjga7jgafj gYLjgorjgIHnp5jljL/nibnmqKnjga7lr77osaHjgajjgarjgovmg4XloLHjgpLlkKvjgpPjgafj gYTjgb7jgZnjgIIK44KC44GX44CB5ZCN5a6b5Lq65Lul5aSW44Gu5pa544GM5Y+X5L+h44GV44KM 44Gf5aC05ZCI44CB44GT44Gu44Oh44O844Or44Gu56C05qOE44CB44GK44KI44Gz44GT44Gu44Oh 44O844Or44Gr6Zai44GZ44KL5LiA5YiH44Gu6ZaL56S644CBCuikh+WGmeOAgemFjeW4g+OAgeOB neOBruS7luOBruWIqeeUqOOAgeOBvuOBn+OBr+iomOi8ieWGheWuueOBq+WfuuOBpeOBj+OBhOOB i+OBquOCi+ihjOWLleOCguOBleOCjOOBquOBhOOCiOOBhuOBiumhmOOBhOeUs+OBl+S4iuOBkuOB vuOBmeOAggotLS0KQ09ORklERU5USUFMSVRZIE5PVEU6IFRoZSBpbmZvcm1hdGlvbiBpbiB0aGlz IGVtYWlsIGlzIGNvbmZpZGVudGlhbAphbmQgaW50ZW5kZWQgc29sZWx5IGZvciB0aGUgYWRkcmVz c2VlLgpEaXNjbG9zdXJlLCBjb3B5aW5nLCBkaXN0cmlidXRpb24gb3IgYW55IG90aGVyIGFjdGlv biBvZiB1c2Ugb2YgdGhpcwplbWFpbCBieSBwZXJzb24gb3RoZXIgdGhhbiBpbnRlbmRlZCByZWNp cGllbnQsIGlzIHByb2hpYml0ZWQuCklmIHlvdSBhcmUgbm90IHRoZSBpbnRlbmRlZCByZWNpcGll bnQgYW5kIGhhdmUgcmVjZWl2ZWQgdGhpcyBlbWFpbCBpbgplcnJvciwgcGxlYXNlIGRlc3Ryb3kg dGhlIG9yaWdpbmFsIG1lc3NhZ2UuCg== From owner-freebsd-mobile@freebsd.org Sun Jun 12 18:02:24 2016 Return-Path: <owner-freebsd-mobile@freebsd.org> Delivered-To: freebsd-mobile@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 43BC9AF0A27 for <freebsd-mobile@mailman.ysv.freebsd.org>; Sun, 12 Jun 2016 18:02:24 +0000 (UTC) (envelope-from ian@freebsd.org) Received: from pmta2.delivery6.ore.mailhop.org (pmta2.delivery6.ore.mailhop.org [54.200.129.228]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 0BF2322B9 for <freebsd-mobile@freebsd.org>; Sun, 12 Jun 2016 18:02:23 +0000 (UTC) (envelope-from ian@freebsd.org) X-MHO-User: db170252-30c7-11e6-8929-8ded99d5e9d7 X-Report-Abuse-To: https://support.duocircle.com/support/solutions/articles/5000540958-duocircle-standard-smtp-abuse-information X-Originating-IP: 73.34.117.227 X-Mail-Handler: DuoCircle Outbound SMTP Received: from ilsoft.org (unknown [73.34.117.227]) by outbound2.ore.mailhop.org (Halon Mail Gateway) with ESMTPSA; Sun, 12 Jun 2016 18:02:41 +0000 (UTC) Received: from rev (rev [172.22.42.240]) by ilsoft.org (8.15.2/8.14.9) with ESMTP id u5CI2KBw011723; Sun, 12 Jun 2016 12:02:21 -0600 (MDT) (envelope-from ian@freebsd.org) Message-ID: <1465754540.1188.113.camel@freebsd.org> Subject: Re: GPIO driver for Intel Atom SoC From: Ian Lepore <ian@freebsd.org> To: "Lundberg, Johannes" <johannes@brilliantservice.co.jp>, Adrian Chadd <adrian.chadd@gmail.com> Cc: "freebsd-mobile@freebsd.org" <freebsd-mobile@freebsd.org>, FreeBSD Current <freebsd-current@freebsd.org> Date: Sun, 12 Jun 2016 12:02:20 -0600 In-Reply-To: <CAASDrVn2vr_5bLp=PSVE2Zh06K4VeceA3TcpB4X=TG6t=XrOug@mail.gmail.com> References: <CAASDrVkw_G38J7owN-pKGOaeUCGUCodoXk84ZKF2GT5WL=3jFA@mail.gmail.com> <CAJ-VmomRvUvTs4egXX3hYu-u1d-iO3hP9t4jd2o9RUQV_yB+zg@mail.gmail.com> <CAASDrVn2vr_5bLp=PSVE2Zh06K4VeceA3TcpB4X=TG6t=XrOug@mail.gmail.com> Content-Type: text/plain; charset="us-ascii" X-Mailer: Evolution 3.16.5 FreeBSD GNOME Team Port Mime-Version: 1.0 Content-Transfer-Encoding: 7bit X-BeenThere: freebsd-mobile@freebsd.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: Mobile computing with FreeBSD <freebsd-mobile.freebsd.org> List-Unsubscribe: <https://lists.freebsd.org/mailman/options/freebsd-mobile>, <mailto:freebsd-mobile-request@freebsd.org?subject=unsubscribe> List-Archive: <http://lists.freebsd.org/pipermail/freebsd-mobile/>; List-Post: <mailto:freebsd-mobile@freebsd.org> List-Help: <mailto:freebsd-mobile-request@freebsd.org?subject=help> List-Subscribe: <https://lists.freebsd.org/mailman/listinfo/freebsd-mobile>, <mailto:freebsd-mobile-request@freebsd.org?subject=subscribe> X-List-Received-Date: Sun, 12 Jun 2016 18:02:24 -0000 On Sun, 2016-06-12 at 10:48 -0700, Lundberg, Johannes wrote: > Thanks Adrian > > Looks like this is something I can base the new driver on. > Hopefully with this we can get eMMC support for Intel SDHCI > controller. > Why do we need gpio support for emmc/sdhci? Is there a power-enable pin that has to be asserted or something? I don't think we have an API that lets an arbitrary driver which is not a child of the gpiobus manipulate pins, outside of the FDT world. -- Ian
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