From patchwork Tue Jun 12 13:14:32 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ludovic BARRE X-Patchwork-Id: 10460295 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 055016020F for ; Tue, 12 Jun 2018 13:23:34 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id E6D4428680 for ; Tue, 12 Jun 2018 13:23:33 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id DB3162870D; Tue, 12 Jun 2018 13:23:33 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.9 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 5FBF328680 for ; Tue, 12 Jun 2018 13:23:33 +0000 (UTC) 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:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=kVS2GFCBLXbH6GFRyP7qIHqh7SkG3BfqpO+6NdRcf0Q=; b=NYyAm84G+RUmq8 zHsOiYx2YCrhphAs9upwYUVOjiVI/0H8LG38RI97yL9qSOztxKVokNG9gBOP7KDR4pelRzdfPQGDd SZaCUp2piNAj3tGhUNelXQIKp1fBC0m5guvbQiz7RoTuYpqwf3ThI7B9XpK8dYRsce4P6Osy1zzIJ NpAq7sSlI2qjPWHhuvcupx7/67EVAUdtQjje22kB5TIRvZG2Y5JgmcIrQLjQ7lPgFPcLpyDW6Wm3x wdIIdVo/1BAZql5JHNIWv+z+keOPzVyPxFjw/regQXaMsu2n8P+BYZJKZs9TFbKizTEBt8pG5OcSs RV+vXNzFhg408Eqaxr8A==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1fSjGd-0003kl-45; Tue, 12 Jun 2018 13:23:23 +0000 Received: from mx08-00178001.pphosted.com ([91.207.212.93] helo=mx07-00178001.pphosted.com) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1fSj9o-0006Pe-0P for linux-arm-kernel@lists.infradead.org; Tue, 12 Jun 2018 13:16:48 +0000 Received: from pps.filterd (m0046660.ppops.net [127.0.0.1]) by mx08-.pphosted.com (8.16.0.21/8.16.0.21) with SMTP id w5CDE3wc017831; Tue, 12 Jun 2018 15:16:06 +0200 Received: from beta.dmz-eu.st.com (beta.dmz-eu.st.com [164.129.1.35]) by mx08-00178001.pphosted.com with ESMTP id 2jjegrr43v-1 (version=TLSv1 cipher=ECDHE-RSA-AES256-SHA bits=256 verify=NOT); Tue, 12 Jun 2018 15:16:06 +0200 Received: from zeta.dmz-eu.st.com (zeta.dmz-eu.st.com [164.129.230.9]) by beta.dmz-eu.st.com (STMicroelectronics) with ESMTP id 4460848; Tue, 12 Jun 2018 13:16:03 +0000 (GMT) Received: from Webmail-eu.st.com (Safex1hubcas22.st.com [10.75.90.92]) by zeta.dmz-eu.st.com (STMicroelectronics) with ESMTP id DF5FEA543; Tue, 12 Jun 2018 13:16:01 +0000 (GMT) Received: from SAFEX1HUBCAS21.st.com (10.75.90.44) by Safex1hubcas22.st.com (10.75.90.92) with Microsoft SMTP Server (TLS) id 14.3.361.1; Tue, 12 Jun 2018 15:16:01 +0200 Received: from lmecxl0923.lme.st.com (10.48.0.237) by Webmail-ga.st.com (10.75.90.48) with Microsoft SMTP Server (TLS) id 14.3.361.1; Tue, 12 Jun 2018 15:16:01 +0200 From: Ludovic Barre To: Ulf Hansson , Rob Herring Subject: [PATCH 11/19] mmc: mmci: add variant property to check specific data constraint Date: Tue, 12 Jun 2018 15:14:32 +0200 Message-ID: <1528809280-31116-12-git-send-email-ludovic.Barre@st.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1528809280-31116-1-git-send-email-ludovic.Barre@st.com> References: <1528809280-31116-1-git-send-email-ludovic.Barre@st.com> MIME-Version: 1.0 X-Originating-IP: [10.48.0.237] X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:, , definitions=2018-06-12_01:, , signatures=0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20180612_061620_448269_9847150E X-CRM114-Status: GOOD ( 13.52 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, Alexandre Torgue , linux-mmc@vger.kernel.org, linux-kernel@vger.kernel.org, Ludovic Barre , Maxime Coquelin , Gerald Baeza , linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP From: Ludovic Barre This patch adds a function pointer to check specific data constraint follow hardware variant. Needed to support the STM32 sdmmc variant which has alignment constraint. Signed-off-by: Ludovic Barre --- drivers/mmc/host/mmci.c | 5 +++++ drivers/mmc/host/mmci.h | 2 ++ 2 files changed, 7 insertions(+) diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c index abddad7..9c00804 100644 --- a/drivers/mmc/host/mmci.c +++ b/drivers/mmc/host/mmci.c @@ -312,6 +312,8 @@ static int mmci_card_busy(struct mmc_host *mmc) static int mmci_validate_data(struct mmci_host *host, struct mmc_data *data) { + struct variant_data *variant = host->variant; + if (!data) return 0; @@ -321,6 +323,9 @@ static int mmci_validate_data(struct mmci_host *host, return -EINVAL; } + if (variant->validate_data) + return variant->validate_data(host, data); + return 0; } diff --git a/drivers/mmc/host/mmci.h b/drivers/mmc/host/mmci.h index 12ee2e6..30d3f53 100644 --- a/drivers/mmc/host/mmci.h +++ b/drivers/mmc/host/mmci.h @@ -284,6 +284,7 @@ struct mmci_host; * register. * @opendrain: bitmask identifying the OPENDRAIN bit inside MMCIPOWER register * @mmci_dma: Pointer to platform-specific DMA callbacks. + * @validate_data: if hardware block has specific constraint on validate data * @set_clk_ios: if clock procedure of variant is specific * @set_pwr_ios: if power procedure of variant is specific */ @@ -328,6 +329,7 @@ struct variant_data { u32 start_err; u32 opendrain; struct mmci_dma_ops *mmci_dma; + int (*validate_data)(struct mmci_host *host, struct mmc_data *data); void (*set_clkreg)(struct mmci_host *host, unsigned int desired); void (*set_pwrreg)(struct mmci_host *host, unsigned char power_mode, unsigned int pwr);