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=-0.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,URIBL_BLOCKED autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by aws-us-west-2-korg-lkml-1.web.codeaurora.org (Postfix) with ESMTP id 2AC1EC433EF for ; Tue, 12 Jun 2018 13:18:53 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id DF5EA208B0 for ; Tue, 12 Jun 2018 13:18:52 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org DF5EA208B0 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=st.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934223AbeFLNSu (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 Content-Type: text/plain 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-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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); -- 2.7.4