From patchwork Fri Sep 13 11:11:37 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Aisheng Dong X-Patchwork-Id: 2883441 Return-Path: X-Original-To: patchwork-linux-arm@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 64230BFF05 for ; Fri, 13 Sep 2013 11:24:23 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id C92C52038B for ; Fri, 13 Sep 2013 11:24:18 +0000 (UTC) Received: from casper.infradead.org (casper.infradead.org [85.118.1.10]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 89FE620387 for ; Fri, 13 Sep 2013 11:24:17 +0000 (UTC) Received: from merlin.infradead.org ([2001:4978:20e::2]) by casper.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1VKRSO-0002LP-V9; Fri, 13 Sep 2013 11:22:38 +0000 Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1VKRRs-00021z-W4; Fri, 13 Sep 2013 11:22:04 +0000 Received: from co9ehsobe002.messaging.microsoft.com ([207.46.163.25] helo=co9outboundpool.messaging.microsoft.com) by merlin.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1VKRRJ-0001wy-Ob for linux-arm-kernel@lists.infradead.org; Fri, 13 Sep 2013 11:21:31 +0000 Received: from mail80-co9-R.bigfish.com (10.236.132.239) by CO9EHSOBE006.bigfish.com (10.236.130.69) with Microsoft SMTP Server id 14.1.225.22; Fri, 13 Sep 2013 11:21:10 +0000 Received: from mail80-co9 (localhost [127.0.0.1]) by mail80-co9-R.bigfish.com (Postfix) with ESMTP id 594A5E0184; Fri, 13 Sep 2013 11:21:10 +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 mail80-co9 (localhost.localdomain [127.0.0.1]) by mail80-co9 (MessageSwitch) id 1379071268492521_32434; Fri, 13 Sep 2013 11:21:08 +0000 (UTC) Received: from CO9EHSMHS015.bigfish.com (unknown [10.236.132.232]) by mail80-co9.bigfish.com (Postfix) with ESMTP id 72214100052; Fri, 13 Sep 2013 11:21:08 +0000 (UTC) Received: from mail.freescale.net (70.37.183.190) by CO9EHSMHS015.bigfish.com (10.236.130.25) with Microsoft SMTP Server (TLS) id 14.16.227.3; Fri, 13 Sep 2013 11:21:07 +0000 Received: from tx30smr01.am.freescale.net (10.81.153.31) by 039-SN1MMR1-001.039d.mgd.msft.net (10.84.1.13) with Microsoft SMTP Server (TLS) id 14.3.158.2; Fri, 13 Sep 2013 11:21:05 +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 r8DBKVCh015010; Fri, 13 Sep 2013 04:21:02 -0700 From: Dong Aisheng To: Subject: [PATCH v2 8/9] mmc: sdhci-esdhc-imx: set actual_clock in clock setting Date: Fri, 13 Sep 2013 19:11:37 +0800 Message-ID: <1379070698-7344-9-git-send-email-b29396@freescale.com> X-Mailer: git-send-email 1.7.1 In-Reply-To: <1379070698-7344-1-git-send-email-b29396@freescale.com> References: <1379070698-7344-1-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% X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20130913_072130_114227_6D133AEF X-CRM114-Status: UNSURE ( 8.98 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -4.2 (----) Cc: ulf.hansson@linaro.org, shawn.guo@linaro.org, s.hauer@pengutronix.de, anton@enomsg.org, w.sang@pengutronix.de, neko@bakuhatsu.net, cjb@laptop.org, b29396@freescale.com, linux-arm-kernel@lists.infradead.org X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-5.1 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, 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 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-imx.c | 3 ++- 1 files changed, 2 insertions(+), 1 deletions(-) diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c index fe48ec3..b9899e9 100644 --- a/drivers/mmc/host/sdhci-esdhc-imx.c +++ b/drivers/mmc/host/sdhci-esdhc-imx.c @@ -524,8 +524,9 @@ static inline void esdhc_pltfm_set_clock(struct sdhci_host *host, 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--;