From patchwork Wed Sep 7 13:57:37 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Aisheng Dong X-Patchwork-Id: 1128132 Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) by demeter2.kernel.org (8.14.4/8.14.4) with ESMTP id p87HID3V028952 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Wed, 7 Sep 2011 17:18:34 GMT Received: from canuck.infradead.org ([2001:4978:20e::1]) by merlin.infradead.org with esmtps (Exim 4.76 #1 (Red Hat Linux)) id 1R1IOl-0002pe-Cq; Wed, 07 Sep 2011 13:42:40 +0000 Received: from localhost ([127.0.0.1] helo=canuck.infradead.org) by canuck.infradead.org with esmtp (Exim 4.76 #1 (Red Hat Linux)) id 1R1IOk-0002iT-Uy; Wed, 07 Sep 2011 13:42:38 +0000 Received: from am1ehsobe005.messaging.microsoft.com ([213.199.154.208] helo=AM1EHSOBE005.bigfish.com) by canuck.infradead.org with esmtps (Exim 4.76 #1 (Red Hat Linux)) id 1R1INy-0002YL-7A for linux-arm-kernel@lists.infradead.org; Wed, 07 Sep 2011 13:41:53 +0000 Received: from mail43-am1-R.bigfish.com (10.3.201.252) by AM1EHSOBE005.bigfish.com (10.3.204.25) with Microsoft SMTP Server id 14.1.225.22; Wed, 7 Sep 2011 13:41:45 +0000 Received: from mail43-am1 (localhost.localdomain [127.0.0.1]) by mail43-am1-R.bigfish.com (Postfix) with ESMTP id BFE01168817C; Wed, 7 Sep 2011 13:41:45 +0000 (UTC) X-SpamScore: 3 X-BigFish: VS3(zzzz1202h1082kzz8275bhz2dh2a8h668h839h62h) X-Spam-TCS-SCL: 1:0 X-Forefront-Antispam-Report: CIP:70.37.183.190; KIP:(null); UIP:(null); IPVD:NLI; H:mail.freescale.net; RD:none; EFVD:NLI Received: from mail43-am1 (localhost.localdomain [127.0.0.1]) by mail43-am1 (MessageSwitch) id 1315402905633225_19899; Wed, 7 Sep 2011 13:41:45 +0000 (UTC) Received: from AM1EHSMHS006.bigfish.com (unknown [10.3.201.251]) by mail43-am1.bigfish.com (Postfix) with ESMTP id 9065EAC8061; Wed, 7 Sep 2011 13:41:45 +0000 (UTC) Received: from mail.freescale.net (70.37.183.190) by AM1EHSMHS006.bigfish.com (10.3.207.106) with Microsoft SMTP Server (TLS) id 14.1.225.22; Wed, 7 Sep 2011 13:41:44 +0000 Received: from az33smr01.freescale.net (10.64.34.199) by 039-SN1MMR1-003.039d.mgd.msft.net (10.84.1.16) with Microsoft SMTP Server id 14.1.323.7; Wed, 7 Sep 2011 08:41:37 -0500 Received: from localhost.localdomain (shlinux2.ap.freescale.net [10.192.224.44]) by az33smr01.freescale.net (8.13.1/8.13.0) with ESMTP id p87DfQAa020023; Wed, 7 Sep 2011 08:41:35 -0500 (CDT) From: Dong Aisheng To: Subject: [PATCH v2 2/3] ARM: mx28evk: set a initial clock rate for saif Date: Wed, 7 Sep 2011 21:57:37 +0800 Message-ID: <1315403858-9904-3-git-send-email-b29396@freescale.com> X-Mailer: git-send-email 1.7.0.4 In-Reply-To: <1315403858-9904-1-git-send-email-b29396@freescale.com> References: <1315403858-9904-1-git-send-email-b29396@freescale.com> MIME-Version: 1.0 X-OriginatorOrg: freescale.com X-CRM114-Version: 20090807-BlameThorstenAndJenny ( TRE 0.7.6 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20110907_094150_697073_03E18502 X-CRM114-Status: GOOD ( 20.21 ) X-Spam-Score: -0.7 (/) X-Spam-Report: SpamAssassin version 3.3.1 on canuck.infradead.org summary: Content analysis details: (-0.7 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.7 RCVD_IN_DNSWL_LOW RBL: Sender listed at http://www.dnswl.org/, low trust [213.199.154.208 listed in list.dnswl.org] Cc: s.hauer@pengutronix.de, broonie@opensource.wolfsonmicro.com, lrg@ti.com, linux-arm-kernel@lists.infradead.org, w.sang@pengutronix.de X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: linux-arm-kernel-bounces@lists.infradead.org Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Greylist: IP, sender and recipient auto-whitelisted, not delayed by milter-greylist-4.2.6 (demeter2.kernel.org [140.211.167.43]); Wed, 07 Sep 2011 17:18:34 +0000 (UTC) Signed-off-by: Dong Aisheng Cc: Sascha Hauer Cc: Wolfram Sang Cc: Mark Brown Cc: Liam Girdwood --- No changes since v1. Note this patch still needs another patch from Wolfram to work. I send out it in this series as [PATCH 3/3] arm: mxs: disable clock-gates when setting saif-clocks As discussed with Wolfram, that patch may still have some later work to do. However, we just send out it for testers to work first. --- arch/arm/mach-mxs/clock-mx28.c | 9 +++++++++ 1 files changed, 9 insertions(+), 0 deletions(-) diff --git a/arch/arm/mach-mxs/clock-mx28.c b/arch/arm/mach-mxs/clock-mx28.c index f0c7cb6..33cc2ff 100644 --- a/arch/arm/mach-mxs/clock-mx28.c +++ b/arch/arm/mach-mxs/clock-mx28.c @@ -826,6 +826,15 @@ int __init mx28_clocks_init(void) clk_set_parent(&saif0_clk, &pll0_clk); clk_set_parent(&saif1_clk, &pll0_clk); + /* + * Set an initial clk rate for saif's internal logic to work properly, + * this is especially for the saif working on EXTMASTER mode that who + * uses other saif's BITCLK&LRCLK but it still needs a basic clk which + * should be bigger enough for its internal logic. + */ + clk_set_rate(&saif0_clk, 24000000); + clk_set_rate(&saif1_clk, 24000000); + clkdev_add_table(lookups, ARRAY_SIZE(lookups)); mxs_timer_init(&clk32k_clk, MX28_INT_TIMER0);