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=-8.3 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,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=unavailable 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 56EDBC35248 for ; Mon, 27 Jan 2020 13:21:30 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 2E1D421739 for ; Mon, 27 Jan 2020 13:21:30 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=st.com header.i=@st.com header.b="Oa8/ux9a" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728236AbgA0NV3 (ORCPT ); Mon, 27 Jan 2020 08:21:29 -0500 Received: from mx08-00178001.pphosted.com ([91.207.212.93]:32028 "EHLO mx07-00178001.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1725972AbgA0NV3 (ORCPT ); Mon, 27 Jan 2020 08:21:29 -0500 Received: from pps.filterd (m0046660.ppops.net [127.0.0.1]) by mx07-00178001.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id 00RDHIgu030114; Mon, 27 Jan 2020 14:21:20 +0100 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=st.com; h=subject : to : cc : references : from : message-id : date : mime-version : in-reply-to : content-type : content-transfer-encoding; s=STMicroelectronics; bh=Ynyg3l3bCZvEHYJP9ooaKE6qoJny3AOLT9lZG+35P+Y=; b=Oa8/ux9a8wVQREI/DQEGek7/L3+KZ11oy/8M8Wqb4ntcZzz9NkaGBk5eii18tdyUP/2l o48/s6ku5LYMkcHRk6Lgt0qo3vx5GKdMVv6/T6QRdFjo5anu80ZlWhDz655ISyMDzeFz 0LYci8ICQasSli1cJBR6qOx4SNXgOR5WZHkb+EbpYTDPSchmJszbbgMoowblruWO5uih UQdNCd7/Ejq20XtRXAJaWWNILoj9IV65o3cnL+SAx29HZi+2dYVwaO3aeaOF9KKgDKUQ P7S41DkRid9Omm/WBjysgy/UEsDxuDAjBMKVCJ34qprTLZ9utI6nffWfUnBNQZtWU88Y +A== Received: from beta.dmz-eu.st.com (beta.dmz-eu.st.com [164.129.1.35]) by mx07-00178001.pphosted.com with ESMTP id 2xrbpas72t-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 27 Jan 2020 14:21:20 +0100 Received: from euls16034.sgp.st.com (euls16034.sgp.st.com [10.75.44.20]) by beta.dmz-eu.st.com (STMicroelectronics) with ESMTP id 0DA4D10002A; Mon, 27 Jan 2020 14:21:20 +0100 (CET) Received: from Webmail-eu.st.com (sfhdag6node1.st.com [10.75.127.16]) by euls16034.sgp.st.com (STMicroelectronics) with ESMTP id ECEE62B1871; Mon, 27 Jan 2020 14:21:19 +0100 (CET) Received: from lmecxl0923.lme.st.com (10.75.127.49) by SFHDAG6NODE1.st.com (10.75.127.16) with Microsoft SMTP Server (TLS) id 15.0.1473.3; Mon, 27 Jan 2020 14:21:18 +0100 Subject: Re: [PATCH 7/9] mmc: mmci: add volt_switch callbacks To: Ulf Hansson CC: Rob Herring , Srinivas Kandagatla , Maxime Coquelin , Alexandre Torgue , Linux ARM , Linux Kernel Mailing List , DTML , "linux-mmc@vger.kernel.org" , References: <20200110134823.14882-1-ludovic.barre@st.com> <20200110134823.14882-8-ludovic.barre@st.com> From: Ludovic BARRE Message-ID: <1b8e1428-c1b6-86e4-8d21-4257bcc16a90@st.com> Date: Mon, 27 Jan 2020 14:21:17 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.1.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset="utf-8"; format=flowed Content-Language: fr Content-Transfer-Encoding: 8bit X-Originating-IP: [10.75.127.49] X-ClientProxiedBy: SFHDAG1NODE2.st.com (10.75.127.2) To SFHDAG6NODE1.st.com (10.75.127.16) X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.138,18.0.572 definitions=2020-01-27_02:2020-01-24,2020-01-27 signatures=0 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org hi Ulf Le 1/24/20 à 2:12 PM, Ulf Hansson a écrit : > On Fri, 10 Jan 2020 at 14:49, Ludovic Barre wrote: >> >> This patch adds 2 voltage switch callbacks in mmci_host_ops: >> -prep_volt_switch allows to prepare voltage switch before to >> sent the SD_SWITCH_VOLTAGE command (cmd11). >> -volt_switch callback allows to define specific action after >> regulator set voltage. > > I am fine with adding these callbacks, however I strongly suggest to > have a reference to "signal voltage" in the name of the callbacks. As > to avoid confusion for what there are used for. > > Perhaps ->post_sig_volt_switch() and ->pre_sig_volt_switch() can work? > sure, I change to post_sig_volt_switch and pre_sig_volt_switch. >> >> Signed-off-by: Ludovic Barre >> --- >> drivers/mmc/host/mmci.c | 8 ++++++++ >> drivers/mmc/host/mmci.h | 2 ++ >> 2 files changed, 10 insertions(+) >> >> diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c >> index 00b473f57047..d76a59c06cb0 100644 >> --- a/drivers/mmc/host/mmci.c >> +++ b/drivers/mmc/host/mmci.c >> @@ -22,6 +22,7 @@ >> #include >> #include >> #include >> +#include >> #include >> #include >> #include >> @@ -1207,6 +1208,9 @@ mmci_start_command(struct mmci_host *host, struct mmc_command *cmd, u32 c) >> writel_relaxed(clks, host->base + MMCIDATATIMER); >> } >> >> + if (host->ops->prep_volt_switch && cmd->opcode == SD_SWITCH_VOLTAGE) >> + host->ops->prep_volt_switch(host); >> + >> if (/*interrupt*/0) >> c |= MCI_CPSM_INTERRUPT; >> >> @@ -1820,6 +1824,7 @@ static int mmci_get_cd(struct mmc_host *mmc) >> >> static int mmci_sig_volt_switch(struct mmc_host *mmc, struct mmc_ios *ios) >> { >> + struct mmci_host *host = mmc_priv(mmc); >> int ret = 0; >> >> if (!IS_ERR(mmc->supply.vqmmc)) { >> @@ -1839,6 +1844,9 @@ static int mmci_sig_volt_switch(struct mmc_host *mmc, struct mmc_ios *ios) >> break; >> } >> >> + if (!ret && host->ops && host->ops->volt_switch) >> + ret = host->ops->volt_switch(host, ios); >> + >> if (ret) >> dev_warn(mmc_dev(mmc), "Voltage switch failed\n"); >> } >> diff --git a/drivers/mmc/host/mmci.h b/drivers/mmc/host/mmci.h >> index ddcdfb827996..c04a144259a2 100644 >> --- a/drivers/mmc/host/mmci.h >> +++ b/drivers/mmc/host/mmci.h >> @@ -377,6 +377,8 @@ struct mmci_host_ops { >> void (*set_clkreg)(struct mmci_host *host, unsigned int desired); >> void (*set_pwrreg)(struct mmci_host *host, unsigned int pwr); >> bool (*busy_complete)(struct mmci_host *host, u32 status, u32 err_msk); >> + void (*prep_volt_switch)(struct mmci_host *host); >> + int (*volt_switch)(struct mmci_host *host, struct mmc_ios *ios); >> }; >> >> struct mmci_host { >> -- >> 2.17.1 >> > > Kind regards > Uffe > 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=-5.8 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,URIBL_BLOCKED,URIBL_DBL_ABUSE_MALW, USER_AGENT_SANE_1 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 3D1BFC2D0DB for ; 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Mon, 27 Jan 2020 14:21:20 +0100 Received: from euls16034.sgp.st.com (euls16034.sgp.st.com [10.75.44.20]) by beta.dmz-eu.st.com (STMicroelectronics) with ESMTP id 0DA4D10002A; Mon, 27 Jan 2020 14:21:20 +0100 (CET) Received: from Webmail-eu.st.com (sfhdag6node1.st.com [10.75.127.16]) by euls16034.sgp.st.com (STMicroelectronics) with ESMTP id ECEE62B1871; Mon, 27 Jan 2020 14:21:19 +0100 (CET) Received: from lmecxl0923.lme.st.com (10.75.127.49) by SFHDAG6NODE1.st.com (10.75.127.16) with Microsoft SMTP Server (TLS) id 15.0.1473.3; Mon, 27 Jan 2020 14:21:18 +0100 Subject: Re: [PATCH 7/9] mmc: mmci: add volt_switch callbacks To: Ulf Hansson References: <20200110134823.14882-1-ludovic.barre@st.com> <20200110134823.14882-8-ludovic.barre@st.com> From: Ludovic BARRE Message-ID: <1b8e1428-c1b6-86e4-8d21-4257bcc16a90@st.com> Date: Mon, 27 Jan 2020 14:21:17 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.1.0 MIME-Version: 1.0 In-Reply-To: Content-Language: fr X-Originating-IP: [10.75.127.49] X-ClientProxiedBy: SFHDAG1NODE2.st.com (10.75.127.2) To SFHDAG6NODE1.st.com (10.75.127.16) X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.138, 18.0.572 definitions=2020-01-27_02:2020-01-24, 2020-01-27 signatures=0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200127_052125_278146_5ED1163D X-CRM114-Status: GOOD ( 20.56 ) 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: DTML , Alexandre Torgue , "linux-mmc@vger.kernel.org" , Linux Kernel Mailing List , Rob Herring , Srinivas Kandagatla , Maxime Coquelin , linux-stm32@st-md-mailman.stormreply.com, Linux ARM Content-Transfer-Encoding: base64 Content-Type: text/plain; charset="utf-8"; Format="flowed" Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org aGkgVWxmCgpMZSAxLzI0LzIwIMOgIDI6MTIgUE0sIFVsZiBIYW5zc29uIGEgw6ljcml0wqA6Cj4g T24gRnJpLCAxMCBKYW4gMjAyMCBhdCAxNDo0OSwgTHVkb3ZpYyBCYXJyZSA8bHVkb3ZpYy5iYXJy ZUBzdC5jb20+IHdyb3RlOgo+Pgo+PiBUaGlzIHBhdGNoIGFkZHMgMiB2b2x0YWdlIHN3aXRjaCBj YWxsYmFja3MgaW4gbW1jaV9ob3N0X29wczoKPj4gLXByZXBfdm9sdF9zd2l0Y2ggYWxsb3dzIHRv IHByZXBhcmUgdm9sdGFnZSBzd2l0Y2ggYmVmb3JlIHRvCj4+ICAgc2VudCB0aGUgU0RfU1dJVENI X1ZPTFRBR0UgY29tbWFuZCAoY21kMTEpLgo+PiAtdm9sdF9zd2l0Y2ggY2FsbGJhY2sgYWxsb3dz IHRvIGRlZmluZSBzcGVjaWZpYyBhY3Rpb24gYWZ0ZXIKPj4gICByZWd1bGF0b3Igc2V0IHZvbHRh Z2UuCj4gCj4gSSBhbSBmaW5lIHdpdGggYWRkaW5nIHRoZXNlIGNhbGxiYWNrcywgaG93ZXZlciBJ IHN0cm9uZ2x5IHN1Z2dlc3QgdG8KPiBoYXZlIGEgcmVmZXJlbmNlIHRvICJzaWduYWwgdm9sdGFn ZSIgaW4gdGhlIG5hbWUgb2YgdGhlIGNhbGxiYWNrcy4gQXMKPiB0byBhdm9pZCBjb25mdXNpb24g Zm9yIHdoYXQgdGhlcmUgYXJlIHVzZWQgZm9yLgo+IAo+IFBlcmhhcHMgLT5wb3N0X3NpZ192b2x0 X3N3aXRjaCgpIGFuZCAtPnByZV9zaWdfdm9sdF9zd2l0Y2goKSBjYW4gd29yaz8KPiAKCnN1cmUs IEkgY2hhbmdlIHRvIHBvc3Rfc2lnX3ZvbHRfc3dpdGNoIGFuZCBwcmVfc2lnX3ZvbHRfc3dpdGNo LgoKPj4KPj4gU2lnbmVkLW9mZi1ieTogTHVkb3ZpYyBCYXJyZSA8bHVkb3ZpYy5iYXJyZUBzdC5j b20+Cj4+IC0tLQo+PiAgIGRyaXZlcnMvbW1jL2hvc3QvbW1jaS5jIHwgOCArKysrKysrKwo+PiAg IGRyaXZlcnMvbW1jL2hvc3QvbW1jaS5oIHwgMiArKwo+PiAgIDIgZmlsZXMgY2hhbmdlZCwgMTAg aW5zZXJ0aW9ucygrKQo+Pgo+PiBkaWZmIC0tZ2l0IGEvZHJpdmVycy9tbWMvaG9zdC9tbWNpLmMg Yi9kcml2ZXJzL21tYy9ob3N0L21tY2kuYwo+PiBpbmRleCAwMGI0NzNmNTcwNDcuLmQ3NmE1OWMw NmNiMCAxMDA2NDQKPj4gLS0tIGEvZHJpdmVycy9tbWMvaG9zdC9tbWNpLmMKPj4gKysrIGIvZHJp dmVycy9tbWMvaG9zdC9tbWNpLmMKPj4gQEAgLTIyLDYgKzIyLDcgQEAKPj4gICAjaW5jbHVkZSA8 bGludXgvbW1jL3BtLmg+Cj4+ICAgI2luY2x1ZGUgPGxpbnV4L21tYy9ob3N0Lmg+Cj4+ICAgI2lu Y2x1ZGUgPGxpbnV4L21tYy9jYXJkLmg+Cj4+ICsjaW5jbHVkZSA8bGludXgvbW1jL3NkLmg+Cj4+ ICAgI2luY2x1ZGUgPGxpbnV4L21tYy9zbG90LWdwaW8uaD4KPj4gICAjaW5jbHVkZSA8bGludXgv YW1iYS9idXMuaD4KPj4gICAjaW5jbHVkZSA8bGludXgvY2xrLmg+Cj4+IEBAIC0xMjA3LDYgKzEy MDgsOSBAQCBtbWNpX3N0YXJ0X2NvbW1hbmQoc3RydWN0IG1tY2lfaG9zdCAqaG9zdCwgc3RydWN0 IG1tY19jb21tYW5kICpjbWQsIHUzMiBjKQo+PiAgICAgICAgICAgICAgICAgIHdyaXRlbF9yZWxh eGVkKGNsa3MsIGhvc3QtPmJhc2UgKyBNTUNJREFUQVRJTUVSKTsKPj4gICAgICAgICAgfQo+Pgo+ PiArICAgICAgIGlmIChob3N0LT5vcHMtPnByZXBfdm9sdF9zd2l0Y2ggJiYgY21kLT5vcGNvZGUg PT0gU0RfU1dJVENIX1ZPTFRBR0UpCj4+ICsgICAgICAgICAgICAgICBob3N0LT5vcHMtPnByZXBf dm9sdF9zd2l0Y2goaG9zdCk7Cj4+ICsKPj4gICAgICAgICAgaWYgKC8qaW50ZXJydXB0Ki8wKQo+ PiAgICAgICAgICAgICAgICAgIGMgfD0gTUNJX0NQU01fSU5URVJSVVBUOwo+Pgo+PiBAQCAtMTgy MCw2ICsxODI0LDcgQEAgc3RhdGljIGludCBtbWNpX2dldF9jZChzdHJ1Y3QgbW1jX2hvc3QgKm1t YykKPj4KPj4gICBzdGF0aWMgaW50IG1tY2lfc2lnX3ZvbHRfc3dpdGNoKHN0cnVjdCBtbWNfaG9z dCAqbW1jLCBzdHJ1Y3QgbW1jX2lvcyAqaW9zKQo+PiAgIHsKPj4gKyAgICAgICBzdHJ1Y3QgbW1j aV9ob3N0ICpob3N0ID0gbW1jX3ByaXYobW1jKTsKPj4gICAgICAgICAgaW50IHJldCA9IDA7Cj4+ Cj4+ICAgICAgICAgIGlmICghSVNfRVJSKG1tYy0+c3VwcGx5LnZxbW1jKSkgewo+PiBAQCAtMTgz OSw2ICsxODQ0LDkgQEAgc3RhdGljIGludCBtbWNpX3NpZ192b2x0X3N3aXRjaChzdHJ1Y3QgbW1j X2hvc3QgKm1tYywgc3RydWN0IG1tY19pb3MgKmlvcykKPj4gICAgICAgICAgICAgICAgICAgICAg ICAgIGJyZWFrOwo+PiAgICAgICAgICAgICAgICAgIH0KPj4KPj4gKyAgICAgICAgICAgICAgIGlm ICghcmV0ICYmIGhvc3QtPm9wcyAmJiBob3N0LT5vcHMtPnZvbHRfc3dpdGNoKQo+PiArICAgICAg ICAgICAgICAgICAgICAgICByZXQgPSBob3N0LT5vcHMtPnZvbHRfc3dpdGNoKGhvc3QsIGlvcyk7 Cj4+ICsKPj4gICAgICAgICAgICAgICAgICBpZiAocmV0KQo+PiAgICAgICAgICAgICAgICAgICAg ICAgICAgZGV2X3dhcm4obW1jX2RldihtbWMpLCAiVm9sdGFnZSBzd2l0Y2ggZmFpbGVkXG4iKTsK Pj4gICAgICAgICAgfQo+PiBkaWZmIC0tZ2l0IGEvZHJpdmVycy9tbWMvaG9zdC9tbWNpLmggYi9k cml2ZXJzL21tYy9ob3N0L21tY2kuaAo+PiBpbmRleCBkZGNkZmI4Mjc5OTYuLmMwNGExNDQyNTlh MiAxMDA2NDQKPj4gLS0tIGEvZHJpdmVycy9tbWMvaG9zdC9tbWNpLmgKPj4gKysrIGIvZHJpdmVy cy9tbWMvaG9zdC9tbWNpLmgKPj4gQEAgLTM3Nyw2ICszNzcsOCBAQCBzdHJ1Y3QgbW1jaV9ob3N0 X29wcyB7Cj4+ICAgICAgICAgIHZvaWQgKCpzZXRfY2xrcmVnKShzdHJ1Y3QgbW1jaV9ob3N0ICpo b3N0LCB1bnNpZ25lZCBpbnQgZGVzaXJlZCk7Cj4+ICAgICAgICAgIHZvaWQgKCpzZXRfcHdycmVn KShzdHJ1Y3QgbW1jaV9ob3N0ICpob3N0LCB1bnNpZ25lZCBpbnQgcHdyKTsKPj4gICAgICAgICAg Ym9vbCAoKmJ1c3lfY29tcGxldGUpKHN0cnVjdCBtbWNpX2hvc3QgKmhvc3QsIHUzMiBzdGF0dXMs IHUzMiBlcnJfbXNrKTsKPj4gKyAgICAgICB2b2lkICgqcHJlcF92b2x0X3N3aXRjaCkoc3RydWN0 IG1tY2lfaG9zdCAqaG9zdCk7Cj4+ICsgICAgICAgaW50ICgqdm9sdF9zd2l0Y2gpKHN0cnVjdCBt bWNpX2hvc3QgKmhvc3QsIHN0cnVjdCBtbWNfaW9zICppb3MpOwo+PiAgIH07Cj4+Cj4+ICAgc3Ry dWN0IG1tY2lfaG9zdCB7Cj4+IC0tCj4+IDIuMTcuMQo+Pgo+IAo+IEtpbmQgcmVnYXJkcwo+IFVm ZmUKPiAKCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCmxp bnV4LWFybS1rZXJuZWwgbWFpbGluZyBsaXN0CmxpbnV4LWFybS1rZXJuZWxAbGlzdHMuaW5mcmFk ZWFkLm9yZwpodHRwOi8vbGlzdHMuaW5mcmFkZWFkLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2xpbnV4 LWFybS1rZXJuZWwK