From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 19053C2BA1A for ; Fri, 24 Apr 2020 07:45:40 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id CF24020704 for ; Fri, 24 Apr 2020 07:45:39 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="VcIkjaKR"; dkim=fail reason="signature verification failed" (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="a+DsWnfI" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org CF24020704 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linaro.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-mtd-bounces+linux-mtd=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References: Message-ID:Subject:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=20mIWdQ3oYxhpaZLBURi/wKMx82HniU2FkGqVIhWrqE=; b=VcIkjaKRfJxzNS 2SzDOuHhDnzA69mSCmoE2y/ecnO8hN819nysOIkBCqXmtfRPIJ42JUHp6jY/F43KuclSjnAmBVISR PLIPIbpVHTyOxlRH5Wlrc2tNkVL2FtRwf8Wd+ukGPUNy46MBvR54+QcZfevxOyiIac5EFWnV3OQ7P aPkawBjxo/vAL11/qwC9SRMy6Zfc6k1VzoMMPfz5NuKbZjjsGoQep1zjOKE2Jij14t2gIIgpJXA8B qo1TFUEgJpgFAme3J09Rl8LZPyWN2J2WA+5jYSIaBwBwXBPzNqJIegle/0zEi3Vi07xJD8PdLLjAL oEhuwffsLgt+3OrNIRmA==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jRt1d-0007f3-OG; Fri, 24 Apr 2020 07:45:29 +0000 Received: from mail-wr1-x441.google.com ([2a00:1450:4864:20::441]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1jRt1W-0007XN-21 for linux-mtd@lists.infradead.org; Fri, 24 Apr 2020 07:45:24 +0000 Received: by mail-wr1-x441.google.com with SMTP id j1so9564452wrt.1 for ; Fri, 24 Apr 2020 00:45:21 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:content-transfer-encoding:in-reply-to; bh=SG53LOGVaYSrSbMxtiTrlXAzhLKqp75bh+EmCNg5dN0=; b=a+DsWnfI8BxEYpw24cMf1ubciUzpfQylo8DC8e2EEMjIGJAT5XO0tgJRc4zm/7UKFj yP+UatvpM1GtMmXPpD5t6YQ4MasDgMtoYBWExtSpG/3qslXrxpKJuKOxPK6aDwnRbbNW 6yJkklIByWlX/orJ1QKHiLb1RV9hXPUxXRysqlf+BZvjvB7SyZ++FH1taB7SxqUTSMKd Mj7oXh41AlY1haAGy3/VSB+UViganSyx20+MVCqJlMMbYhZ1eBZnDu7arB/dsxjdJR9g cMWMghusSfqfUS/ZTQ+cVhwDE8raguIokO5x2X3TnwoyGJPxoQ5N3TuXUvUMUuXGQXsL 2u6g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:content-transfer-encoding :in-reply-to; bh=SG53LOGVaYSrSbMxtiTrlXAzhLKqp75bh+EmCNg5dN0=; b=lLPlNngHoRe9zXsYaSGH3xJL0RekLjABdRDtEhkA0yvmHnfayFfb9bGduucQipAPC1 uzEpelTVTEPxvc7atRK9Wb6Vl6vxb64Ty7mzJbTS0mn9HVu4umpCR0f+3DA2fvoP2rWV FMnVt+YB/I3gq76JNZh615np8/CN4nQu09EAj0JaYnePr28jVKsY9xZNlIVq4yqPJUjx gf/E9GU87WkrEaLngvbL78v2MrfJQIYcTsrrxdq1OlVClByzxLg5BXKM8IOGivWGlfRl 0QWj9dg5NkSG2X2AgkkngGC3Ft6XTP6EYf2mit20BctesWj+dZxDJJ6mDL6R1hcbJyOs IM9Q== X-Gm-Message-State: AGi0PuZMNuKI5q0XfniSCf6toCHjJPKAq6DOC/yfLIgWrh8vVZGYVQ7A /sDOf7IuR/GkdXbNAnouL+Q4tA== X-Google-Smtp-Source: APiQypJQnsAmYnrESuH25hDMC1DnFFclkWGp9gSfFlUxWpilxTxaT5ID13BjavkGNKAVWmlFxdLMmw== X-Received: by 2002:adf:82f5:: with SMTP id 108mr9200402wrc.43.1587714320260; Fri, 24 Apr 2020 00:45:20 -0700 (PDT) Received: from dell ([2.31.163.63]) by smtp.gmail.com with ESMTPSA id o3sm7034174wru.68.2020.04.24.00.45.18 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 24 Apr 2020 00:45:18 -0700 (PDT) Date: Fri, 24 Apr 2020 08:45:17 +0100 From: Lee Jones To: Christophe Kerello Subject: Re: [PATCH v2 02/12] mfd: stm32-fmc2: add STM32 FMC2 controller driver Message-ID: <20200424074517.GN3612@dell> References: <1586966256-29548-1-git-send-email-christophe.kerello@st.com> <1586966256-29548-3-git-send-email-christophe.kerello@st.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <1586966256-29548-3-git-send-email-christophe.kerello@st.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200424_004522_650865_3C0E6FEE X-CRM114-Status: GOOD ( 16.24 ) X-BeenThere: linux-mtd@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: mark.rutland@arm.com, devicetree@vger.kernel.org, marex@denx.de, vigneshr@ti.com, tony@atomide.com, richard@nod.at, linux-kernel@vger.kernel.org, robh+dt@kernel.org, linux-mtd@lists.infradead.org, miquel.raynal@bootlin.com, linux-stm32@st-md-mailman.stormreply.com Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-mtd" Errors-To: linux-mtd-bounces+linux-mtd=archiver.kernel.org@lists.infradead.org T24gV2VkLCAxNSBBcHIgMjAyMCwgQ2hyaXN0b3BoZSBLZXJlbGxvIHdyb3RlOgoKPiBUaGUgZHJp dmVyIGFkZHMgdGhlIHN1cHBvcnQgZm9yIHRoZSBTVE1pY3JvZWxlY3Ryb25pY3MgRk1DMiBjb250 cm9sbGVyCj4gZm91bmQgb24gU1RNMzJNUCBTT0NzLgo+IAo+IFRoZSBGTUMyIGZ1bmN0aW9uYWwg YmxvY2sgbWFrZXMgdGhlIGludGVyZmFjZSB3aXRoOiBzeW5jaHJvbm91cyBhbmQKPiBhc3luY2hy b25vdXMgc3RhdGljIG1lbW9yaWVzIChzdWNoIGFzIFBTTk9SLCBQU1JBTSBvciBvdGhlcgo+IG1l bW9yeS1tYXBwZWQgcGVyaXBoZXJhbHMpIGFuZCBOQU5EIGZsYXNoIG1lbW9yaWVzLgo+IAo+IFNp Z25lZC1vZmYtYnk6IENocmlzdG9waGUgS2VyZWxsbyA8Y2hyaXN0b3BoZS5rZXJlbGxvQHN0LmNv bT4KPiAtLS0KPiBDaGFuZ2VzIGluIHYyOgo+ICAtIHJlbW92ZSBvcHMgZnJvbSBzdG0zMl9mbWMy IHN0cnVjdHVyZQo+ICAtIGFkZCAyIEFQSXMgdG8gbWFuYWdlIEZNQzIgZW5hYmxlL2Rpc2FibGUK PiAgLSBhZGQgMiBBUElzIHRvIG1hbmFnZSBGTUMyIE5XQUlUIHNoYXJlZCBzaWduYWwKPiAKPiAg ZHJpdmVycy9tZmQvS2NvbmZpZyAgICAgICAgICAgIHwgIDEyICsrKwo+ICBkcml2ZXJzL21mZC9N YWtlZmlsZSAgICAgICAgICAgfCAgIDEgKwo+ICBkcml2ZXJzL21mZC9zdG0zMi1mbWMyLmMgICAg ICAgfCAxMzYgKysrKysrKysrKysrKysrKysrKysrKysrKwo+ICBpbmNsdWRlL2xpbnV4L21mZC9z dG0zMi1mbWMyLmggfCAyMjUgKysrKysrKysrKysrKysrKysrKysrKysrKysrKysrKysrKysrKysr KysKPiAgNCBmaWxlcyBjaGFuZ2VkLCAzNzQgaW5zZXJ0aW9ucygrKQo+ICBjcmVhdGUgbW9kZSAx MDA2NDQgZHJpdmVycy9tZmQvc3RtMzItZm1jMi5jCj4gIGNyZWF0ZSBtb2RlIDEwMDY0NCBpbmNs dWRlL2xpbnV4L21mZC9zdG0zMi1mbWMyLmgKPiAKPiBkaWZmIC0tZ2l0IGEvZHJpdmVycy9tZmQv S2NvbmZpZyBiL2RyaXZlcnMvbWZkL0tjb25maWcKPiBpbmRleCAyYjIwMzI5Li41MjYwNTgyIDEw MDY0NAo+IC0tLSBhL2RyaXZlcnMvbWZkL0tjb25maWcKPiArKysgYi9kcml2ZXJzL21mZC9LY29u ZmlnCj4gQEAgLTE5MjIsNiArMTkyMiwxOCBAQCBjb25maWcgTUZEX1JPSE1fQkQ3MTgyOAo+ICAJ ICBBbHNvIGluY2x1ZGVkIGlzIGEgQ291bG9tYiBjb3VudGVyLCBhIHJlYWwtdGltZSBjbG9jayAo UlRDKSwgYW5kCj4gIAkgIGEgMzIuNzY4IGtIeiBjbG9jayBnYXRlLgo+ICAKPiArY29uZmlnIE1G RF9TVE0zMl9GTUMyCj4gKwl0cmlzdGF0ZSAiU3VwcG9ydCBmb3IgRk1DMiBjb250cm9sbGVycyBv biBTVE0zMk1QIFNvQ3MiCj4gKwlkZXBlbmRzIG9uIE1BQ0hfU1RNMzJNUDE1NyB8fCBDT01QSUxF X1RFU1QKPiArCXNlbGVjdCBNRkRfQ09SRQo+ICsJc2VsZWN0IFJFR01BUAo+ICsJc2VsZWN0IFJF R01BUF9NTUlPCj4gKwloZWxwCj4gKwkgIFNlbGVjdCB0aGlzIG9wdGlvbiB0byBlbmFibGUgU1RN MzIgRk1DMiBkcml2ZXIgdXNlZCBmb3IgRk1DMiBFeHRlcm5hbAo+ICsJICBCdXMgSW50ZXJmYWNl IGNvbnRyb2xsZXIgYW5kIEZNQzIgTkFORCBmbGFzaCBjb250cm9sbGVyLiBUaGlzIGRyaXZlcgo+ ICsJICBwcm92aWRlcyBjb3JlIHN1cHBvcnQgZm9yIHRoZSBTVE0zMiBGTUMyIGNvbnRyb2xsZXJz LCBpbiBvcmRlciB0byB1c2UKPiArCSAgdGhlIGFjdHVhbCBmdW5jdGlvbmFsaXR5IG9mIHRoZSBk ZXZpY2Ugb3RoZXIgZHJpdmVycyBtdXN0IGJlIGVuYWJsZWQuCgpOb3Qgc3VyZSBob3cgbWFueSB0 aW1lcyBJIGhhdmUgdG8gc2F5IHRoaXMgYmVmb3JlIHBlb3BsZSBzdG9wCmF0dGVtcHRpbmcgdG8g cGFzcyB0aGVzZSBraW5kcyBvZiByZWxhdGlvbnNoaXBzIG9mZiBhcyBNRkRzOgoKQSBtZW1vcnkg ZGV2aWNlIGFuZCBpdHMgYnVzIGlzIG5vdCBhbiBNRkQuICBJbiBhIHNpbWlsYXIgdmFpbiB0byB0 aGUKdGhvdXNhbmRzIG9mIFVTQiwgSTJDLCBTUEksIFBDSSBhbmQgdGhlIGxpa2UgZGV2aWNlcyB0 aGF0IGFyZW4ndCBNRkRzCmVpdGhlci4KClBsZWFzZSBmaW5kIGFub3RoZXIgd2F5IHRvIGFzc29j aWF0ZSB5b3VyIGRldmljZSB3aXRoIGl0cyBidXMuCgotLSAKTGVlIEpvbmVzIFvmnY7nkLzmlq9d CkxpbmFybyBTZXJ2aWNlcyBUZWNobmljYWwgTGVhZApMaW5hcm8ub3JnIOKUgiBPcGVuIHNvdXJj ZSBzb2Z0d2FyZSBmb3IgQVJNIFNvQ3MKRm9sbG93IExpbmFybzogRmFjZWJvb2sgfCBUd2l0dGVy IHwgQmxvZwoKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fCkxpbnV4IE1URCBkaXNjdXNzaW9uIG1haWxpbmcgbGlzdApodHRwOi8vbGlzdHMuaW5m cmFkZWFkLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2xpbnV4LW10ZC8K From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id F2355C2BA1A for ; Fri, 24 Apr 2020 07:45:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id CA65D21655 for ; Fri, 24 Apr 2020 07:45:22 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="a+DsWnfI" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726386AbgDXHpW (ORCPT ); Fri, 24 Apr 2020 03:45:22 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35888 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726028AbgDXHpV (ORCPT ); Fri, 24 Apr 2020 03:45:21 -0400 Received: from mail-wr1-x441.google.com (mail-wr1-x441.google.com [IPv6:2a00:1450:4864:20::441]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A1379C09B046 for ; Fri, 24 Apr 2020 00:45:21 -0700 (PDT) Received: by mail-wr1-x441.google.com with SMTP id s10so9581830wrr.0 for ; Fri, 24 Apr 2020 00:45:21 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:content-transfer-encoding:in-reply-to; bh=SG53LOGVaYSrSbMxtiTrlXAzhLKqp75bh+EmCNg5dN0=; b=a+DsWnfI8BxEYpw24cMf1ubciUzpfQylo8DC8e2EEMjIGJAT5XO0tgJRc4zm/7UKFj yP+UatvpM1GtMmXPpD5t6YQ4MasDgMtoYBWExtSpG/3qslXrxpKJuKOxPK6aDwnRbbNW 6yJkklIByWlX/orJ1QKHiLb1RV9hXPUxXRysqlf+BZvjvB7SyZ++FH1taB7SxqUTSMKd Mj7oXh41AlY1haAGy3/VSB+UViganSyx20+MVCqJlMMbYhZ1eBZnDu7arB/dsxjdJR9g cMWMghusSfqfUS/ZTQ+cVhwDE8raguIokO5x2X3TnwoyGJPxoQ5N3TuXUvUMUuXGQXsL 2u6g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:content-transfer-encoding :in-reply-to; bh=SG53LOGVaYSrSbMxtiTrlXAzhLKqp75bh+EmCNg5dN0=; b=H3LHYLhr3CTktxuU5/B2nsKL4ziGHsEFcnjhpUIkASpjJFp7JNTV/fTmpYyAA1v6Zn en3Iq+VN5KLjcwbvXvBZZm21+C4ZQkxDzEaWlKbuBXY4cVUaFniHQMlQgQq/1qwYXIO3 SDthlIRoUZk5RcvGYQNSatg29vH1xZfglJCZ24i8wngp7fssuJ0wlGCsst9zMTmLjpu/ IS/UQRIhc4of7mZaJQGZufj1eYH92L5gnyZivAwhI3Cu98XlNUumdE4q6PzxEu3CCpeu omeum1NNGf+GgZGzdfy0QJCfIJRmFD79stHGla/3eN7DLiHnmzvCvuhTVDQNOWoebQM0 z79A== X-Gm-Message-State: AGi0PuaeJk/16+qm0o9w7pZNDPjOAl0spvXg+9RIWtzJepg74CC7AsZl 3sA+IpAICMfJjj+z1Sme9+2FJw== X-Google-Smtp-Source: APiQypJQnsAmYnrESuH25hDMC1DnFFclkWGp9gSfFlUxWpilxTxaT5ID13BjavkGNKAVWmlFxdLMmw== X-Received: by 2002:adf:82f5:: with SMTP id 108mr9200402wrc.43.1587714320260; Fri, 24 Apr 2020 00:45:20 -0700 (PDT) Received: from dell ([2.31.163.63]) by smtp.gmail.com with ESMTPSA id o3sm7034174wru.68.2020.04.24.00.45.18 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 24 Apr 2020 00:45:18 -0700 (PDT) Date: Fri, 24 Apr 2020 08:45:17 +0100 From: Lee Jones To: Christophe Kerello Cc: miquel.raynal@bootlin.com, richard@nod.at, vigneshr@ti.com, robh+dt@kernel.org, mark.rutland@arm.com, tony@atomide.com, linux-mtd@lists.infradead.org, linux-kernel@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, devicetree@vger.kernel.org, marex@denx.de Subject: Re: [PATCH v2 02/12] mfd: stm32-fmc2: add STM32 FMC2 controller driver Message-ID: <20200424074517.GN3612@dell> References: <1586966256-29548-1-git-send-email-christophe.kerello@st.com> <1586966256-29548-3-git-send-email-christophe.kerello@st.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <1586966256-29548-3-git-send-email-christophe.kerello@st.com> Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org On Wed, 15 Apr 2020, Christophe Kerello wrote: > The driver adds the support for the STMicroelectronics FMC2 controller > found on STM32MP SOCs. > > The FMC2 functional block makes the interface with: synchronous and > asynchronous static memories (such as PSNOR, PSRAM or other > memory-mapped peripherals) and NAND flash memories. > > Signed-off-by: Christophe Kerello > --- > Changes in v2: > - remove ops from stm32_fmc2 structure > - add 2 APIs to manage FMC2 enable/disable > - add 2 APIs to manage FMC2 NWAIT shared signal > > drivers/mfd/Kconfig | 12 +++ > drivers/mfd/Makefile | 1 + > drivers/mfd/stm32-fmc2.c | 136 +++++++++++++++++++++++++ > include/linux/mfd/stm32-fmc2.h | 225 +++++++++++++++++++++++++++++++++++++++++ > 4 files changed, 374 insertions(+) > create mode 100644 drivers/mfd/stm32-fmc2.c > create mode 100644 include/linux/mfd/stm32-fmc2.h > > diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig > index 2b20329..5260582 100644 > --- a/drivers/mfd/Kconfig > +++ b/drivers/mfd/Kconfig > @@ -1922,6 +1922,18 @@ config MFD_ROHM_BD71828 > Also included is a Coulomb counter, a real-time clock (RTC), and > a 32.768 kHz clock gate. > > +config MFD_STM32_FMC2 > + tristate "Support for FMC2 controllers on STM32MP SoCs" > + depends on MACH_STM32MP157 || COMPILE_TEST > + select MFD_CORE > + select REGMAP > + select REGMAP_MMIO > + help > + Select this option to enable STM32 FMC2 driver used for FMC2 External > + Bus Interface controller and FMC2 NAND flash controller. This driver > + provides core support for the STM32 FMC2 controllers, in order to use > + the actual functionality of the device other drivers must be enabled. Not sure how many times I have to say this before people stop attempting to pass these kinds of relationships off as MFDs: A memory device and its bus is not an MFD. In a similar vain to the thousands of USB, I2C, SPI, PCI and the like devices that aren't MFDs either. Please find another way to associate your device with its bus. -- Lee Jones [李琼斯] Linaro Services Technical Lead Linaro.org │ Open source software for ARM SoCs Follow Linaro: Facebook | Twitter | Blog