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: 10460243 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 18528602A0 for ; Tue, 12 Jun 2018 13:18:52 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 086E8286AD for ; Tue, 12 Jun 2018 13:18:52 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id F1571286BD; Tue, 12 Jun 2018 13:18:51 +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=-7.9 required=2.0 tests=BAYES_00, MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 92976286AD for ; Tue, 12 Jun 2018 13:18:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933469AbeFLNSu (ORCPT ); Tue, 12 Jun 2018 09:18:50 -0400 Received: from mx08-00178001.pphosted.com ([91.207.212.93]:64992 "EHLO mx07-00178001.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S934005AbeFLNQu (ORCPT ); Tue, 12 Jun 2018 09:16:50 -0400 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 CC: Maxime Coquelin , Alexandre Torgue , Gerald Baeza , , , , , Ludovic Barre 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 Sender: linux-mmc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-mmc@vger.kernel.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);