From patchwork Wed Sep 4 12:54:10 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Aisheng Dong X-Patchwork-Id: 2853641 Return-Path: X-Original-To: patchwork-linux-mmc@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 1684BC0AB5 for ; Wed, 4 Sep 2013 13:01:24 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id EC1BF20319 for ; Wed, 4 Sep 2013 13:01:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 1773420306 for ; Wed, 4 Sep 2013 13:01:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932478Ab3IDNBT (ORCPT ); Wed, 4 Sep 2013 09:01:19 -0400 Received: from tx2ehsobe002.messaging.microsoft.com ([65.55.88.12]:56696 "EHLO tx2outboundpool.messaging.microsoft.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1760087Ab3IDNBR (ORCPT ); Wed, 4 Sep 2013 09:01:17 -0400 Received: from mail97-tx2-R.bigfish.com (10.9.14.238) by TX2EHSOBE014.bigfish.com (10.9.40.34) with Microsoft SMTP Server id 14.1.225.22; Wed, 4 Sep 2013 13:01:17 +0000 Received: from mail97-tx2 (localhost [127.0.0.1]) by mail97-tx2-R.bigfish.com (Postfix) with ESMTP id 16761380170; Wed, 4 Sep 2013 13:01:17 +0000 (UTC) X-Forefront-Antispam-Report: CIP:70.37.183.190; KIP:(null); UIP:(null); IPV:NLI; H:mail.freescale.net; RD:none; EFVD:NLI X-SpamScore: 3 X-BigFish: VS3(zzzz1f42h208ch1ee6h1de0h1fdah2073h1202h1e76h1d1ah1d2ah1fc6h1082kzz1de098h1de097h8275bhz2dh2a8h839hd24he5bhf0ah1288h12a5h12a9h12bdh12e5h137ah139eh13b6h1441h1504h1537h162dh1631h1758h1898h18e1h1946h19b5h1ad9h1b0ah1b2fh1fb3h1d0ch1d2eh1d3fh1dfeh1dffh1e23h1fe8h1ff5h1155h) Received: from mail97-tx2 (localhost.localdomain [127.0.0.1]) by mail97-tx2 (MessageSwitch) id 1378299675620726_11137; Wed, 4 Sep 2013 13:01:15 +0000 (UTC) Received: from TX2EHSMHS032.bigfish.com (unknown [10.9.14.226]) by mail97-tx2.bigfish.com (Postfix) with ESMTP id 906552E0061; Wed, 4 Sep 2013 13:01:15 +0000 (UTC) Received: from mail.freescale.net (70.37.183.190) by TX2EHSMHS032.bigfish.com (10.9.99.132) with Microsoft SMTP Server (TLS) id 14.16.227.3; Wed, 4 Sep 2013 13:01:10 +0000 Received: from tx30smr01.am.freescale.net (10.81.153.31) by 039-SN1MMR1-003.039d.mgd.msft.net (10.84.1.16) with Microsoft SMTP Server (TLS) id 14.3.158.2; Wed, 4 Sep 2013 13:01:10 +0000 Received: from shlinux2.ap.freescale.net (shlinux2.ap.freescale.net [10.192.224.44]) by tx30smr01.am.freescale.net (8.14.3/8.14.0) with ESMTP id r84D138J027984; Wed, 4 Sep 2013 06:01:08 -0700 From: Dong Aisheng To: CC: , , , , , Subject: [PATCH 1/8] mmc: sdhci: add hooks for platform specific tuning Date: Wed, 4 Sep 2013 20:54:10 +0800 Message-ID: <1378299257-2980-2-git-send-email-b29396@freescale.com> X-Mailer: git-send-email 1.7.1 In-Reply-To: <1378299257-2980-1-git-send-email-b29396@freescale.com> References: <1378299257-2980-1-git-send-email-b29396@freescale.com> MIME-Version: 1.0 X-OriginatorOrg: freescale.com X-FOPE-CONNECTOR: Id%0$Dn%*$RO%0$TLS%0$FQDN%$TlsDn% Sender: linux-mmc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-mmc@vger.kernel.org X-Spam-Status: No, score=-9.3 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP The tuning of some platforms may not follow the standard host control spec v3.0, e.g. Freescale uSDHC on i.MX6Q/DL. Add a hook here to allow execute platform specific tuning instead of standard host controller tuning. Signed-off-by: Dong Aisheng --- drivers/mmc/host/sdhci.c | 8 ++++++++ drivers/mmc/host/sdhci.h | 1 + 2 files changed, 9 insertions(+), 0 deletions(-) diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c index dd2c083..2890cfd 100644 --- a/drivers/mmc/host/sdhci.c +++ b/drivers/mmc/host/sdhci.c @@ -1875,6 +1875,14 @@ static int sdhci_execute_tuning(struct mmc_host *mmc, u32 opcode) return 0; } + if (host->ops->platform_execute_tuning) { + spin_unlock(&host->lock); + enable_irq(host->irq); + err = host->ops->platform_execute_tuning(host, opcode); + sdhci_runtime_pm_put(host); + return err; + } + sdhci_writew(host, ctrl, SDHCI_HOST_CONTROL2); /* diff --git a/drivers/mmc/host/sdhci.h b/drivers/mmc/host/sdhci.h index b037f18..976c14b 100644 --- a/drivers/mmc/host/sdhci.h +++ b/drivers/mmc/host/sdhci.h @@ -288,6 +288,7 @@ struct sdhci_ops { unsigned int (*get_ro)(struct sdhci_host *host); void (*platform_reset_enter)(struct sdhci_host *host, u8 mask); void (*platform_reset_exit)(struct sdhci_host *host, u8 mask); + int (*platform_execute_tuning)(struct sdhci_host *host, u32 opcode); int (*set_uhs_signaling)(struct sdhci_host *host, unsigned int uhs); void (*hw_reset)(struct sdhci_host *host); void (*platform_suspend)(struct sdhci_host *host);