From patchwork Mon May 1 02:57:16 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Tom Rix X-Patchwork-Id: 13227368 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 B2A72C77B73 for ; Mon, 1 May 2023 02:57:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: Content-Type:MIME-Version: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:In-Reply-To:References:List-Owner; bh=T0ZkpApH9Uyl/XYPLTJH+Oty+sLxkUjSVHrKn2yb7ns=; b=ChcAjYFjAAtbG/SMkxxAZ44t9K RQbhgLONPLctsVLlvs3q1rvoQlFWko2kJTdY+0DPNE4bfy4ubYPNATrfHTQT0KlyTD+4MdIFMMB9p 6x6XrpMFS4NZAI8QPoSyS5CygT6eOsGQMcCIayQC34AtGbGmhlKESGx3SM09oBe4OW8Kbu2T2WhkQ htkP++8hVt6DpKfs5EdYKq23rnv/DKDFGMZdeNsbKfIj1tCIRmTFPu+jKBFz+ta2S95k0ny9qA/xv KnUP8NmWmTCwntcOAhbppVd8h2XaF+YNy7ZmTG5PU4AYeIBNixE87bc09BBFmheHmdGcn+BMI0HcC Zytnb+KQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1ptJjD-00F44s-1h; Mon, 01 May 2023 02:57:27 +0000 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1ptJj9-00F43F-2v for linux-mediatek@lists.infradead.org; Mon, 01 May 2023 02:57:25 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1682909841; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=T0ZkpApH9Uyl/XYPLTJH+Oty+sLxkUjSVHrKn2yb7ns=; b=COMFe4VyR+AuULFo/o/q2buVnJhO4ROuY+OSpvRJG+l1tyl0yoR6QRGzekUmaGsQq+wDbd 4vE75NjXq2NQBpnikoBwEKNOOtl6ylpNY3Vrt9irvHMA/VNvEXpf7pPexQ8MQZLjq1ZMKm 2TqZozQklLeGITZtBETZqc2DmRix5bo= Received: from mail-qk1-f198.google.com (mail-qk1-f198.google.com [209.85.222.198]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-128-uv6sGWcSPAieL4-nUcnXYA-1; Sun, 30 Apr 2023 22:57:20 -0400 X-MC-Unique: uv6sGWcSPAieL4-nUcnXYA-1 Received: by mail-qk1-f198.google.com with SMTP id af79cd13be357-7515a7ba88aso217181085a.3 for ; Sun, 30 Apr 2023 19:57:20 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1682909840; x=1685501840; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=T0ZkpApH9Uyl/XYPLTJH+Oty+sLxkUjSVHrKn2yb7ns=; b=V40vXdMR89pNpeTl3o3f7uEOmBHttBX71i4su2fB9apQA6K5NRL5nWMKYFphoKv7rG xgLzJxq+QxltpkRs86gkzE9rzPErF6JlNiPmeX7Xk/K/c+9bDPaeqbNvruG/13gbWOeV zTpnAYfUtJ9nCBqOnvLRxvtqUUio9HuqikIOmWfhN5Xdvp2gzGFNtvbj7VUKvnNy7ffP Bdyxl3WoSqnR/4ID571xTh4dS0Ql7PWmYlNNqxPFtL/cg2umjCSPuL0DLZi3muUKDThK yy12zK8iWN2qEm9bj475xjJ6ThMx607b/UDtDh70Xz1EbdWZXndVz/Yqkr5eIlht7fOB cRUQ== X-Gm-Message-State: AC+VfDxqXVyBEKwioE/G7ez1CuQhrXCmoYJyCKSJDXjvQcGVq+RYbfg1 sYpwfyqhbAlW+27KWxUUefCZNKxZjz5/z8Y1TBmOVX6BGtta+9PISvgd9aiB5sJYP49yfw8P35Y DMicrlOI6/fLgVlk5POl+u9/kJPbjODcj X-Received: by 2002:a05:6214:c82:b0:60e:98be:8694 with SMTP id r2-20020a0562140c8200b0060e98be8694mr16050596qvr.46.1682909839914; Sun, 30 Apr 2023 19:57:19 -0700 (PDT) X-Google-Smtp-Source: ACHHUZ4/ljLsU87nCmXWBl5vPSzg7xYiesizXksCYmzOcSH/wrxt2VTaDcOJnMVYcKodfsqf+KRBQA== X-Received: by 2002:a05:6214:c82:b0:60e:98be:8694 with SMTP id r2-20020a0562140c8200b0060e98be8694mr16050578qvr.46.1682909839687; Sun, 30 Apr 2023 19:57:19 -0700 (PDT) Received: from dell-per740-01.7a2m.lab.eng.bos.redhat.com (nat-pool-bos-t.redhat.com. [66.187.233.206]) by smtp.gmail.com with ESMTPSA id i7-20020a056214030700b005eedb5cebd1sm8307482qvu.130.2023.04.30.19.57.18 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 30 Apr 2023 19:57:19 -0700 (PDT) From: Tom Rix To: chunkuang.hu@kernel.org, p.zabel@pengutronix.de, chunfeng.yun@mediatek.com, vkoul@kernel.org, kishon@kernel.org, matthias.bgg@gmail.com, angelogioacchino.delregno@collabora.com Cc: dri-devel@lists.freedesktop.org, linux-mediatek@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-phy@lists.infradead.org, linux-kernel@vger.kernel.org, Tom Rix Subject: [PATCH] phy: mediatek: rework the floating point comparisons to fixed point Date: Sun, 30 Apr 2023 22:57:16 -0400 Message-Id: <20230501025716.2905609-1-trix@redhat.com> X-Mailer: git-send-email 2.27.0 MIME-Version: 1.0 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230430_195724_034534_6706A076 X-CRM114-Status: GOOD ( 11.27 ) X-BeenThere: linux-mediatek@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-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org gcc on aarch64 reports drivers/phy/mediatek/phy-mtk-hdmi-mt8195.c: In function ‘mtk_hdmi_pll_set_rate’: drivers/phy/mediatek/phy-mtk-hdmi-mt8195.c:240:52: error: ‘-mgeneral-regs-only’ is incompatible with the use of floating-point types 240 | else if (tmds_clk >= 54 * MEGA && tmds_clk < 148.35 * MEGA) Floating point should not be used, so rework the floating point comparisons to fixed point. Signed-off-by: Tom Rix --- drivers/phy/mediatek/phy-mtk-hdmi-mt8195.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/drivers/phy/mediatek/phy-mtk-hdmi-mt8195.c b/drivers/phy/mediatek/phy-mtk-hdmi-mt8195.c index abfc077fb0a8..c9501a3d90a5 100644 --- a/drivers/phy/mediatek/phy-mtk-hdmi-mt8195.c +++ b/drivers/phy/mediatek/phy-mtk-hdmi-mt8195.c @@ -237,11 +237,11 @@ static int mtk_hdmi_pll_calc(struct mtk_hdmi_phy *hdmi_phy, struct clk_hw *hw, */ if (tmds_clk < 54 * MEGA) txposdiv = 8; - else if (tmds_clk >= 54 * MEGA && tmds_clk < 148.35 * MEGA) + else if (tmds_clk >= 54 * MEGA && (tmds_clk * 100) < 14835 * MEGA) txposdiv = 4; - else if (tmds_clk >= 148.35 * MEGA && tmds_clk < 296.7 * MEGA) + else if ((tmds_clk * 100) >= 14835 * MEGA && (tmds_clk * 10) < 2967 * MEGA) txposdiv = 2; - else if (tmds_clk >= 296.7 * MEGA && tmds_clk <= 594 * MEGA) + else if ((tmds_clk * 10) >= 2967 * MEGA && tmds_clk <= 594 * MEGA) txposdiv = 1; else return -EINVAL; @@ -328,12 +328,12 @@ static int mtk_hdmi_pll_drv_setting(struct clk_hw *hw) clk_channel_bias = 0x34; /* 20mA */ impedance_en = 0xf; impedance = 0x36; /* 100ohm */ - } else if (pixel_clk >= 74.175 * MEGA && pixel_clk <= 300 * MEGA) { + } else if ((pixel_clk * 1000) >= 74175 * MEGA && pixel_clk <= 300 * MEGA) { data_channel_bias = 0x34; /* 20mA */ clk_channel_bias = 0x2c; /* 16mA */ impedance_en = 0xf; impedance = 0x36; /* 100ohm */ - } else if (pixel_clk >= 27 * MEGA && pixel_clk < 74.175 * MEGA) { + } else if (pixel_clk >= 27 * MEGA && (pixel_clk * 1000) < 74175 * MEGA) { data_channel_bias = 0x14; /* 10mA */ clk_channel_bias = 0x14; /* 10mA */ impedance_en = 0x0;