From patchwork Thu Sep 23 13:20:36 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Claudiu Beznea X-Patchwork-Id: 12512907 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=-18.2 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,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 E49BEC433EF for ; Thu, 23 Sep 2021 13:25:40 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id B6DB16124B for ; Thu, 23 Sep 2021 13:25:40 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org B6DB16124B Authentication-Results: mail.kernel.org; dmarc=fail (p=quarantine dis=none) header.from=microchip.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:CC:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=IO8KZ4OnSCIMVo6SfuPtL/nBD2jOZ/VvlDp8i4iq+D8=; b=vhSDaKpCajqiIh 3swUjDIkTL6ja49Tgugk6Xq3zwl46VlwnciPoKy3mw7Uxc31ydUHqnqUDlu43CS7rxwQPpGY1mlYo 4rAzgXq7Tu1e98SecFTTw4FDD1KvWvpZki49VFGissPaHb6jJgy1fWD/c5h0LHdjw5U4pP0xyRK7Z jrgGtmXA3KiFM0FROmvB9x3oUCHOvi5tliOgKgAadRkQKV4P2MKX6AY4VJcmXg+/JweSnb+8ptHgY oM+25GzhnpJMHaqDhcIINGLz7wOALjBFNw20ULyQ0u8zJmsek3uau9c0u9XzrX0Nxh7AKm2pD8X0P NOVqCdTJ49qYMiMkPkoQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1mTOhk-00Babr-1D; Thu, 23 Sep 2021 13:24:00 +0000 Received: from esa.microchip.iphmx.com ([68.232.153.233]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1mTOf9-00BZVn-Bq for linux-arm-kernel@lists.infradead.org; Thu, 23 Sep 2021 13:21:20 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=microchip.com; i=@microchip.com; q=dns/txt; s=mchp; t=1632403279; x=1663939279; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=bbgvOX8odhhcgQRbsWErZdBKALu82PPpkMqqT+eQSGM=; b=Mr9cO3NKfaC2whcrrYPNnGNUsbTlVQ6+J+8IT1HrYrFpB6D7ZZq/d4IY ZUDQW2Xd++lxRnI0raCuMRufyQzxqCz57QkV8XFGJEw6ep860zB3n3cC7 n1SaiteISoBN0La5n5yEQzDUZblVjYGiPNDpaXrveDS3DRqgieuzt+AB7 T/WeIlLiU2ZTNfLe5S0k2+I0Ns8EtzLQgpnZZ0HjDHsFC6wZQzWrgUyGN PJoLD9J8R+rdC4GW5KkczOleyz7GSLdUC3pTxzwFoLOCZTLMSKTmTLi1W LuZGZXXu+MIfJDGwCAolPP0WZmOEejz9+C7JKDqtbrM9JVDNIb6O2ZHLG g==; IronPort-SDR: o+trM+tlELZt7qoaLRH51vpi3MyEJppw7qodEHiu3lzjCCzLoRvbOlryYXAnPXZx79JR//fjzZ ia2CwFaVReOPa00H4Q9pEbSgK6bIprJ40+7pt50NYW3LGZLH8owsjWYQmG/xChyPU7eZY6F+iP r5oT0vNiM33o2EGsqKhztRcDYRqepdcEe0x74YZblDYX0lsGtnwv33JpGTVa5U+Oh5j7OrG20N pqA9vGtXq/MEBLh6I7u/E2To4AZu6a5n9/9e0qonZUu5LgjeGPdN/If3u8Kkjmgbw8g5YBvZ2h Yf6GGg781tl9FfeL2ITAkwun X-IronPort-AV: E=Sophos;i="5.85,316,1624345200"; d="scan'208";a="145305443" Received: from smtpout.microchip.com (HELO email.microchip.com) ([198.175.253.82]) by esa1.microchip.iphmx.com with ESMTP/TLS/AES256-SHA256; 23 Sep 2021 06:21:18 -0700 Received: from chn-vm-ex03.mchp-main.com (10.10.85.151) by chn-vm-ex04.mchp-main.com (10.10.85.152) 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 06:21:18 -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 06:21:16 -0700 From: Claudiu Beznea To: , , , , CC: , , , Claudiu Beznea Subject: [PATCH v4 07/17] clk: at91: sam9x60-pll: use DIV_ROUND_CLOSEST_ULL Date: Thu, 23 Sep 2021 16:20:36 +0300 Message-ID: <20210923132046.1860549-8-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 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210923_062119_438026_0B2D8068 X-CRM114-Status: UNSURE ( 9.15 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Use DIV_ROUND_CLOSEST_ULL() to avoid any inconsistency b/w the rate computed in sam9x60_frac_pll_recalc_rate() and the one computed in sam9x60_frac_pll_compute_mul_frac(). Fixes: 43b1bb4a9b3e1 ("clk: at91: clk-sam9x60-pll: re-factor to support plls with multiple outputs") Signed-off-by: Claudiu Beznea --- drivers/clk/at91/clk-sam9x60-pll.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/clk/at91/clk-sam9x60-pll.c b/drivers/clk/at91/clk-sam9x60-pll.c index 7020d3bf6e13..a73d7c96ce1d 100644 --- a/drivers/clk/at91/clk-sam9x60-pll.c +++ b/drivers/clk/at91/clk-sam9x60-pll.c @@ -73,8 +73,8 @@ static unsigned long sam9x60_frac_pll_recalc_rate(struct clk_hw *hw, struct sam9x60_pll_core *core = to_sam9x60_pll_core(hw); struct sam9x60_frac *frac = to_sam9x60_frac(core); - return (parent_rate * (frac->mul + 1) + - ((u64)parent_rate * frac->frac >> 22)); + return parent_rate * (frac->mul + 1) + + DIV_ROUND_CLOSEST_ULL((u64)parent_rate * frac->frac, (1 << 22)); } static int sam9x60_frac_pll_set(struct sam9x60_pll_core *core)