From patchwork Wed Sep 4 12:54:16 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Aisheng Dong X-Patchwork-Id: 2853648 Return-Path: X-Original-To: patchwork-linux-mmc@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 6392E9F3DC for ; Wed, 4 Sep 2013 13:01:51 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id AA3DC20308 for ; Wed, 4 Sep 2013 13:01:46 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 80C30202C7 for ; Wed, 4 Sep 2013 13:01:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934424Ab3IDNBn (ORCPT ); Wed, 4 Sep 2013 09:01:43 -0400 Received: from co1ehsobe001.messaging.microsoft.com ([216.32.180.184]:29212 "EHLO co1outboundpool.messaging.microsoft.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932491Ab3IDNBm (ORCPT ); Wed, 4 Sep 2013 09:01:42 -0400 Received: from mail121-co1-R.bigfish.com (10.243.78.254) by CO1EHSOBE013.bigfish.com (10.243.66.76) with Microsoft SMTP Server id 14.1.225.22; Wed, 4 Sep 2013 13:01:41 +0000 Received: from mail121-co1 (localhost [127.0.0.1]) by mail121-co1-R.bigfish.com (Postfix) with ESMTP id B945470022C; Wed, 4 Sep 2013 13:01:41 +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 mail121-co1 (localhost.localdomain [127.0.0.1]) by mail121-co1 (MessageSwitch) id 1378299699713802_6615; Wed, 4 Sep 2013 13:01:39 +0000 (UTC) Received: from CO1EHSMHS032.bigfish.com (unknown [10.243.78.236]) by mail121-co1.bigfish.com (Postfix) with ESMTP id A926E4C0053; Wed, 4 Sep 2013 13:01:39 +0000 (UTC) Received: from mail.freescale.net (70.37.183.190) by CO1EHSMHS032.bigfish.com (10.243.66.42) with Microsoft SMTP Server (TLS) id 14.16.227.3; Wed, 4 Sep 2013 13:01:29 +0000 Received: from tx30smr01.am.freescale.net (10.81.153.31) by 039-SN1MMR1-004.039d.mgd.msft.net (10.84.1.14) with Microsoft SMTP Server (TLS) id 14.3.158.2; Wed, 4 Sep 2013 13:01:26 +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 r84D138P027984; Wed, 4 Sep 2013 06:01:23 -0700 From: Dong Aisheng To: CC: , , , , , Subject: [PATCH 7/8] mmc: sdhci-esdhc: set actual_clock in clock setting Date: Wed, 4 Sep 2013 20:54:16 +0800 Message-ID: <1378299257-2980-8-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=ham 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 This enables access the actual_clock via sys. root@imx6qsabreauto:~# cat /sys/kernel/debug/mmc0/ios clock: 198000000 Hz actual clock: 198000000 Hz vdd: 17 (2.9 ~ 3.0 V) bus mode: 2 (push-pull) chip select: 0 (don't care) power mode: 2 (on) bus width: 2 (4 bits) timing spec: 6 (sd uhs SDR104) signal voltage: 0 (1.80 V) Signed-off-by: Dong Aisheng --- drivers/mmc/host/sdhci-esdhc.h | 3 ++- 1 files changed, 2 insertions(+), 1 deletions(-) diff --git a/drivers/mmc/host/sdhci-esdhc.h b/drivers/mmc/host/sdhci-esdhc.h index c8a773b..eb22e5f 100644 --- a/drivers/mmc/host/sdhci-esdhc.h +++ b/drivers/mmc/host/sdhci-esdhc.h @@ -89,8 +89,9 @@ static inline void esdhc_set_clock(struct sdhci_host *host, unsigned int clock, while (host_clock / pre_div / div > clock && div < 16) div++; + host->mmc->actual_clock = host_clock / pre_div / div; dev_dbg(mmc_dev(host->mmc), "desired SD clock: %d, actual: %d\n", - clock, host_clock / pre_div / div); + clock, host->mmc->actual_clock); pre_div >>= 1; div--;