From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 0366CC9EC90 for ; Mon, 12 Jan 2026 13:49:23 +0000 (UTC) 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=7+x4K00QGGT41Uf7pqs3YwlEGblF4wXcc9d0duUGpNo=; b=Ll4dRuVPUmaXtv UMvK125gISE4QK7eefs/KYOQIJeu2B1YLc7S9WJl1h3X/F/2toTCFQ17UZq8DYvfPexjQJ4hkrVXI TevtljAnWFLT/wFZPcceiXjifvBWNEJWtB/wKLHPEY5liIi2FKsxv98dUyzc/k0H9LG8GY7GfKl57 ICAtj/L3Sg+OyW+KURB5p+HYOP6qd7/Ub+zqRAPBeyVjyL+w8L9rBkIXHpshRz/PMhmJY6AUX1/zM o6ExbDldBIyi5dDTHLtb4JhDmOpDmybNsajjADOtVG754d/whivKBHfczFYHP9NAxx/WxwNCuVljM RlY6sA10Ozj/l4s2/Opg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1vfIIF-00000005RUb-3ETz; Mon, 12 Jan 2026 13:49:15 +0000 Received: from mgamail.intel.com ([192.198.163.16]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1vfIIC-00000005RSM-2Iob; Mon, 12 Jan 2026 13:49:13 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1768225752; x=1799761752; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=s4D8kw7OoyHkWsenYF7E+9Z6vB4aK7eDBACFxTCsJgQ=; b=NbBz32xlKfw4WC5rQuACOLX2uAA5MKEq77HbfUzoi3mzZK0UfOuIHsya 3ILZt71mIOg8W21+wuFmkxidY1qmSW/HKqujBrxe8KxF9ZmJB7GOOShrp lsBvw6+H7BuE+UI5uERhziG232wG8zLiLQRGsgYJ1v9g/8qA6gdsfLh+K que2njKiolt/zicehhpNI4afql50EByx2jFEQpNOcpjvDpgRKRanxZrTz 875/6aolKIyyWmmhbpXOHs9g1141W8dI0H/+a+U1jZtjYLjysmaQB3FU6 DXrRJAvWBPx7dmeTFc8qx95oELBw5vDYmJMcbTYPI3dAvNeP5FMNqEj/T w==; X-CSE-ConnectionGUID: sD7b/lShQjqGG0dxpeRPuA== X-CSE-MsgGUID: m0tsEvJDSKCi7cIJgdxQtw== X-IronPort-AV: E=McAfee;i="6800,10657,11669"; a="57048262" X-IronPort-AV: E=Sophos;i="6.21,221,1763452800"; d="scan'208";a="57048262" Received: from orviesa004.jf.intel.com ([10.64.159.144]) by fmvoesa110.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 12 Jan 2026 05:49:11 -0800 X-CSE-ConnectionGUID: RSGfaLd6QVqd0LuDupeO2Q== X-CSE-MsgGUID: JO2qZ07QS3e8APOkDDRiqQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.21,221,1763452800"; d="scan'208";a="208618599" Received: from black.igk.intel.com ([10.91.253.5]) by orviesa004.jf.intel.com with ESMTP; 12 Jan 2026 05:49:08 -0800 Received: by black.igk.intel.com (Postfix, from userid 1003) id C1CDE9E; Mon, 12 Jan 2026 14:49:06 +0100 (CET) From: Andy Shevchenko To: Andi Shyti , Andy Shevchenko , Wolfram Sang , Qianfeng Rong , linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-rockchip@lists.infradead.org Cc: Khalil Blaiech , Asmaa Mnebhi , Andi Shyti , Qii Wang , Matthias Brugger , AngeloGioacchino Del Regno , Linus Walleij , Heiko Stuebner , Patrice Chotard , Ard Biesheuvel Subject: [PATCH v1 4/7] i2c: nomadik: Use HZ_PER_GHZ constant instead of plain number Date: Mon, 12 Jan 2026 14:46:12 +0100 Message-ID: <20260112134900.4142954-5-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.50.1 In-Reply-To: <20260112134900.4142954-1-andriy.shevchenko@linux.intel.com> References: <20260112134900.4142954-1-andriy.shevchenko@linux.intel.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260112_054912_627552_7AF18CC7 X-CRM114-Status: GOOD ( 10.51 ) X-BeenThere: linux-rockchip@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Upstream kernel work for Rockchip platforms List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "Linux-rockchip" Errors-To: linux-rockchip-bounces+linux-rockchip=archiver.kernel.org@lists.infradead.org Use defined constant to avoid the possible mistakes and to provide an additional information on the units. While at it, drop unneeded 64-bit division, all operands fit 32-bit. Signed-off-by: Andy Shevchenko --- drivers/i2c/busses/i2c-nomadik.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/i2c/busses/i2c-nomadik.c b/drivers/i2c/busses/i2c-nomadik.c index 19b648fc094d..b63ee51c1652 100644 --- a/drivers/i2c/busses/i2c-nomadik.c +++ b/drivers/i2c/busses/i2c-nomadik.c @@ -31,6 +31,7 @@ #include #include #include +#include #define DRIVER_NAME "nmk-i2c" @@ -419,10 +420,10 @@ static void setup_i2c_controller(struct nmk_i2c_dev *priv) * modes are 250ns, 100ns, 10ns respectively. * * As the time for one cycle T in nanoseconds is - * T = (1/f) * 1000000000 => - * slsu = cycles / (1000000000 / f) + 1 + * T = (1/f) * HZ_PER_GHZ => + * slsu = cycles / (HZ_PER_GHZ / f) + 1 */ - ns = DIV_ROUND_UP_ULL(1000000000ULL, i2c_clk); + ns = DIV_ROUND_UP(HZ_PER_GHZ, i2c_clk); switch (priv->sm) { case I2C_FREQ_MODE_FAST: case I2C_FREQ_MODE_FAST_PLUS: -- 2.50.1 _______________________________________________ Linux-rockchip mailing list Linux-rockchip@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-rockchip