From patchwork Thu Sep 23 13:20:39 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Claudiu Beznea X-Patchwork-Id: 12512883 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=-16.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham 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 935CCC433FE for ; Thu, 23 Sep 2021 13:21:45 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 7A90F61050 for ; Thu, 23 Sep 2021 13:21:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S241299AbhIWNXQ (ORCPT ); Thu, 23 Sep 2021 09:23:16 -0400 Received: from esa.microchip.iphmx.com ([68.232.153.233]:42952 "EHLO esa.microchip.iphmx.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S241338AbhIWNXC (ORCPT ); Thu, 23 Sep 2021 09:23:02 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=microchip.com; i=@microchip.com; q=dns/txt; s=mchp; t=1632403290; x=1663939290; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=tJKSBuOTBiBd8Y63je4r0LFxJcPueVYGL0ehIQ+Ul8U=; b=hKUim/Ox00tL4BXvCHCnX3Z2X2zI1xFhd+kAclFNlfK/62dT9FV/8n8B aoBbA2vSB1fjjOO8J+cCG74hyu9LThVQwTEN78eeinqGovnU4IqyaPvrr gvRMd36Ks0qhwf6PO+TsKbiSyqmYPvQuQXVydyamnKg37YC8eFFGJDaDP okBb0LbLTbayv04+rgMmLbxVBXQMc/01nXGOlgn52PvoCKO08LEcug8p6 mFbWXr3byp3cgFPuk7zlqVHyBfQUkbzteOveGqnK3QE4seYHufPaX9va+ 8qdLwzPe/rhVqJthA6oNT858z5vIrNgmuNXcHGir8aF6JpdKsuFbOJ5aT g==; IronPort-SDR: C7OZdUQTBHRDKdMYMD+2y1R2lcUNrOtvE7q4IyuotbHtgBg7AZ+DHGm1r3IeYp4FzJg2ZD3knQ uqIMZ/i635nILhzW9KFNuurk651DX33HVu+rhpYHDnlifIPPGmkX8N+uO4uOKPpy9dG/6IQO0i G8vDttM53uHttlnpbzDE35f2sjrdZT2LrxDeOP5NF1J9wC8oc6dVRyEZ24Ft2ei0rAkQOvFF2H 9XS7W2nRt8Nn8UCcjK97Jooa9sVseZdVdl90r6KM9wyrpCLh5vpZvAD+ODdoBDWqtrh7F3Qr8h x81ZVqbZbBJgnaXOPyEW7nAc X-IronPort-AV: E=Sophos;i="5.85,316,1624345200"; d="scan'208";a="137664851" Received: from smtpout.microchip.com (HELO email.microchip.com) ([198.175.253.82]) by esa3.microchip.iphmx.com with ESMTP/TLS/AES256-SHA256; 23 Sep 2021 06:21:30 -0700 Received: from chn-vm-ex03.mchp-main.com (10.10.85.151) by chn-vm-ex02.mchp-main.com (10.10.85.144) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2176.14; Thu, 23 Sep 2021 06:21:26 -0700 Received: from rob-dk-mpu01.microchip.com (10.10.115.15) by chn-vm-ex03.mchp-main.com (10.10.85.151) with Microsoft SMTP Server id 15.1.2176.14 via Frontend Transport; Thu, 23 Sep 2021 06:21:24 -0700 From: Claudiu Beznea To: , , , , CC: , , , Claudiu Beznea Subject: [PATCH v4 10/17] clk: at91: clk-master: fix prescaler logic Date: Thu, 23 Sep 2021 16:20:39 +0300 Message-ID: <20210923132046.1860549-11-claudiu.beznea@microchip.com> X-Mailer: git-send-email 2.33.0 In-Reply-To: <20210923132046.1860549-1-claudiu.beznea@microchip.com> References: <20210923132046.1860549-1-claudiu.beznea@microchip.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-clk@vger.kernel.org When prescaler value read from register is MASTER_PRES_MAX it means that the input clock will be divided by 3. Fix the code to reflect this. Fixes: 7a110b9107ed8 ("clk: at91: clk-master: re-factor master clock") Signed-off-by: Claudiu Beznea --- drivers/clk/at91/clk-master.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/clk/at91/clk-master.c b/drivers/clk/at91/clk-master.c index 6da9ae34313a..e67bcd03a827 100644 --- a/drivers/clk/at91/clk-master.c +++ b/drivers/clk/at91/clk-master.c @@ -386,7 +386,7 @@ static unsigned long clk_master_pres_recalc_rate(struct clk_hw *hw, val &= master->layout->mask; pres = (val >> master->layout->pres_shift) & MASTER_PRES_MASK; - if (pres == 3 && characteristics->have_div3_pres) + if (pres == MASTER_PRES_MAX && characteristics->have_div3_pres) pres = 3; else pres = (1 << pres);