From patchwork Thu Apr 13 12:46:26 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Guillaume Ranquet X-Patchwork-Id: 13210276 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 gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (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 544A4C77B6E for ; Thu, 13 Apr 2023 12:51:53 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 6BECA10EA53; Thu, 13 Apr 2023 12:51:49 +0000 (UTC) Received: from mail-wm1-x32f.google.com (mail-wm1-x32f.google.com [IPv6:2a00:1450:4864:20::32f]) by gabe.freedesktop.org (Postfix) with ESMTPS id B992910EA53 for ; Thu, 13 Apr 2023 12:51:43 +0000 (UTC) Received: by mail-wm1-x32f.google.com with SMTP id l10-20020a05600c1d0a00b003f04bd3691eso18933449wms.5 for ; Thu, 13 Apr 2023 05:51:43 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=baylibre-com.20221208.gappssmtp.com; s=20221208; t=1681390301; x=1683982301; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:from:to:cc:subject:date:message-id :reply-to; bh=2NCSyvdX0SmPc9ExxsTpFJ2greUOcRi/vLBExtrGuM4=; b=VRVY6mW4C2eeH9XEL2rXf4kib+8LepoYm141EhEj4bMvddMWMZfWEbDgkVd2Fj86U+ 8XY43D+8ZnAkl+qpBUZPKykNENQ5Z2zTtvwwxjqsxoLGyN15QkzR6S/slTv51nhS+vNl 5N3LR05EDvlN7cCZXDgERRZt6CthgOTM29OhPCTT9PWnp1NrXTcfWWrHxW1KAqIMjTR4 QTTV9BH7BbOjgf1NeAgQSVmxdmGAnc8+GnrYry1RvKBlEC4Y5TjIV8VspCoEIef/ZZQk 1JjNRHshJN85qXDV3vS/7/8E/HuDtNGgLzT1FUNEo0/qZmBLSorW4icPeTmIb4cHsuYq tUcA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1681390301; x=1683982301; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=2NCSyvdX0SmPc9ExxsTpFJ2greUOcRi/vLBExtrGuM4=; b=B7GAeht04uWPDF3hv8zqQrZRC6YFuH2uwiXYNmTT7164pyRru0qU2jUPXvr8mtbXRK 2z8bMPefWwfN+7ZYRcNS3ewmeHESnLI9cyaIymwGiX+mZDHMHHqGIJVbaV7jOReyrv7s A4qp0tonzO2mGGMfxQekiMY5H4EPHCfunq3EshKiCHgBPSG72vEgSSuL8XOUg5kpRzBb H5zuAxwIQQY5gkn+nreE3T/hYlIaqd6Viz1uo33BjbpUW72rbv1DzGh0z1iOJo7OFuvZ 9UEZI1sE3DSgDIwAeOSpYy3O/Sv5Xx2xzKKDHR67UoFickDzWjEAwgLeU+mc94VjNBfb 9vjA== X-Gm-Message-State: AAQBX9fHv6EY3h54tU+TBVWo/yPu1SLmfcwMRabwiDOTFdb9aN/+u9Jz U0fLaMwYxA7Z1vbsFTitAat2PA== X-Google-Smtp-Source: AKy350aa1i5mgrVePFwrBlQob6A/5LRh1D6/2011CW+4P/unl+t6yKRaDKzFUe2AB+mGY/qtrWZ6aA== X-Received: by 2002:a1c:4b0b:0:b0:3ef:4138:9eef with SMTP id y11-20020a1c4b0b000000b003ef41389eefmr1450843wma.36.1681390301230; Thu, 13 Apr 2023 05:51:41 -0700 (PDT) Received: from [127.0.0.1] ([82.66.159.240]) by smtp.gmail.com with ESMTPSA id k17-20020a5d66d1000000b002f67e4d1c63sm156356wrw.12.2023.04.13.05.51.40 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 13 Apr 2023 05:51:40 -0700 (PDT) From: Guillaume Ranquet Date: Thu, 13 Apr 2023 14:46:26 +0200 Subject: [PATCH 2/2] phy: mediatek: hdmi: mt8195: fix wrong pll calculus MIME-Version: 1.0 Message-Id: <20230413-fixes-for-mt8195-hdmi-phy-v1-2-b8482458df0d@baylibre.com> References: <20230413-fixes-for-mt8195-hdmi-phy-v1-0-b8482458df0d@baylibre.com> In-Reply-To: <20230413-fixes-for-mt8195-hdmi-phy-v1-0-b8482458df0d@baylibre.com> To: Chun-Kuang Hu , Philipp Zabel , Chunfeng Yun , Vinod Koul , Kishon Vijay Abraham I , Matthias Brugger , AngeloGioacchino Del Regno X-Mailer: b4 0.13-dev X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Guillaume Ranquet , linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-mediatek@lists.infradead.org, linux-phy@lists.infradead.org, linux-arm-kernel@lists.infradead.org Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" The clock rate calculus in mtk_hdmi_pll_calc() was wrong when it has been replaced by 'div_u64'. Fix the issue by multiplying the values in the denominator instead of dividing them. Fixes: 45810d486bb44 ("phy: mediatek: add support for phy-mtk-hdmi-mt8195") Signed-off-by: Guillaume Ranquet Reviewed-by: AngeloGioacchino Del Regno --- drivers/phy/mediatek/phy-mtk-hdmi-mt8195.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/phy/mediatek/phy-mtk-hdmi-mt8195.c b/drivers/phy/mediatek/phy-mtk-hdmi-mt8195.c index e10da6c4147e..5e84b294a43e 100644 --- a/drivers/phy/mediatek/phy-mtk-hdmi-mt8195.c +++ b/drivers/phy/mediatek/phy-mtk-hdmi-mt8195.c @@ -271,7 +271,7 @@ static int mtk_hdmi_pll_calc(struct mtk_hdmi_phy *hdmi_phy, struct clk_hw *hw, * [32,24] 9bit integer, [23,0]:24bit fraction */ pcw = div_u64(((u64)ns_hdmipll_ck) << PCW_DECIMAL_WIDTH, - da_hdmitx21_ref_ck / PLL_FBKDIV_HS3); + da_hdmitx21_ref_ck * PLL_FBKDIV_HS3); if (pcw > GENMASK_ULL(32, 0)) return -EINVAL; @@ -288,7 +288,7 @@ static int mtk_hdmi_pll_calc(struct mtk_hdmi_phy *hdmi_phy, struct clk_hw *hw, posdiv2 = 1; /* Digital clk divider, max /32 */ - digital_div = div_u64((u64)ns_hdmipll_ck, posdiv1 / posdiv2 / pixel_clk); + digital_div = div_u64(ns_hdmipll_ck, posdiv1 * posdiv2 * pixel_clk); if (!(digital_div <= 32 && digital_div >= 1)) return -EINVAL;