From patchwork Fri Sep 17 12:38:50 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?b?V2VuYmluIE1laSAo5qKF5paH5b2sKQ==?= X-Patchwork-Id: 12501957 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=-16.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,UNPARSEABLE_RELAY,URIBL_BLOCKED, USER_AGENT_GIT 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 E5765C433F5 for ; Fri, 17 Sep 2021 12:39:03 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D1F3C61268 for ; Fri, 17 Sep 2021 12:39:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S244466AbhIQMkX (ORCPT ); Fri, 17 Sep 2021 08:40:23 -0400 Received: from mailgw02.mediatek.com ([210.61.82.184]:52352 "EHLO mailgw02.mediatek.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S231626AbhIQMkV (ORCPT ); Fri, 17 Sep 2021 08:40:21 -0400 X-UUID: 275e4743244c432b9b2fd9133d115382-20210917 X-UUID: 275e4743244c432b9b2fd9133d115382-20210917 Received: from mtkmbs10n2.mediatek.inc [(172.21.101.183)] by mailgw02.mediatek.com (envelope-from ) (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 1305325167; Fri, 17 Sep 2021 20:38:55 +0800 Received: from mtkexhb02.mediatek.inc (172.21.101.103) by mtkmbs05n2.mediatek.inc (172.21.101.140) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Fri, 17 Sep 2021 20:38:55 +0800 Received: from mtkcas07.mediatek.inc (172.21.101.84) by mtkexhb02.mediatek.inc (172.21.101.103) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Fri, 17 Sep 2021 20:38:54 +0800 Received: from localhost.localdomain (10.17.3.154) by mtkcas07.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Fri, 17 Sep 2021 20:38:53 +0800 From: Wenbin Mei To: Ulf Hansson , Rob Herring , Matthias Brugger CC: Chaotian Jing , Avri Altman , Wenbin Mei , Wolfram Sang , Yoshihiro Shimoda , Linus Walleij , Yue Hu , Bean Huo , Adrian Hunter , , , , , Subject: [PATCH 2/3] mmc: core: add tuning support for HS400 mode Date: Fri, 17 Sep 2021 20:38:50 +0800 Message-ID: <20210917123851.22741-3-wenbin.mei@mediatek.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210917123851.22741-1-wenbin.mei@mediatek.com> References: <20210917123851.22741-1-wenbin.mei@mediatek.com> MIME-Version: 1.0 X-MTK: N Precedence: bulk List-ID: X-Mailing-List: linux-mmc@vger.kernel.org This adds the execute_hs400_tuning callback function for HS400 tuning operations and move the declaration of mmc_get_ext_csd() to include/linux/mmc/host.h. If execute_hs400_tuning is not implemented then they are not called. That means there should be no affect for existing drivers as none implemt these ops. Signed-off-by: Wenbin Mei --- drivers/mmc/core/mmc.c | 8 ++++++++ drivers/mmc/core/mmc_ops.h | 1 - include/linux/mmc/host.h | 4 ++++ 3 files changed, 12 insertions(+), 1 deletion(-) diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c index 838726b68ff3..0aa72acd8612 100644 --- a/drivers/mmc/core/mmc.c +++ b/drivers/mmc/core/mmc.c @@ -1222,6 +1222,14 @@ static int mmc_select_hs400(struct mmc_card *card) mmc_set_timing(host, MMC_TIMING_MMC_HS400); mmc_set_bus_speed(card); + if (host->ops->execute_hs400_tuning) { + mmc_retune_disable(host); + err = host->ops->execute_hs400_tuning(host, card); + mmc_retune_enable(host); + if (err) + goto out_err; + } + if (host->ops->hs400_complete) host->ops->hs400_complete(host); diff --git a/drivers/mmc/core/mmc_ops.h b/drivers/mmc/core/mmc_ops.h index ae25ffc2e870..e5e94567a9a9 100644 --- a/drivers/mmc/core/mmc_ops.h +++ b/drivers/mmc/core/mmc_ops.h @@ -38,7 +38,6 @@ int mmc_spi_read_ocr(struct mmc_host *host, int highcap, u32 *ocrp); int mmc_spi_set_crc(struct mmc_host *host, int use_crc); int mmc_bus_test(struct mmc_card *card, u8 bus_width); int mmc_can_ext_csd(struct mmc_card *card); -int mmc_get_ext_csd(struct mmc_card *card, u8 **new_ext_csd); int mmc_switch_status(struct mmc_card *card, bool crc_err_fatal); bool mmc_prepare_busy_cmd(struct mmc_host *host, struct mmc_command *cmd, unsigned int timeout_ms); diff --git a/include/linux/mmc/host.h b/include/linux/mmc/host.h index ff1a251bb0bc..072650aeb2a7 100644 --- a/include/linux/mmc/host.h +++ b/include/linux/mmc/host.h @@ -162,6 +162,9 @@ struct mmc_host_ops { /* Prepare HS400 target operating frequency depending host driver */ int (*prepare_hs400_tuning)(struct mmc_host *host, struct mmc_ios *ios); + /* Execute HS400 tuning depending host driver */ + int (*execute_hs400_tuning)(struct mmc_host *host, struct mmc_card *card); + /* Prepare switch to DDR during the HS400 init sequence */ int (*hs400_prepare_ddr)(struct mmc_host *host); @@ -633,5 +636,6 @@ static inline enum dma_data_direction mmc_get_dma_dir(struct mmc_data *data) int mmc_send_tuning(struct mmc_host *host, u32 opcode, int *cmd_error); int mmc_send_abort_tuning(struct mmc_host *host, u32 opcode); +int mmc_get_ext_csd(struct mmc_card *card, u8 **new_ext_csd); #endif /* LINUX_MMC_HOST_H */