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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id DB011C001DE for ; Sun, 6 Aug 2023 13:43:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229848AbjHFNnz (ORCPT ); Sun, 6 Aug 2023 09:43:55 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45256 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229592AbjHFNny (ORCPT ); Sun, 6 Aug 2023 09:43:54 -0400 Received: from mail-ed1-x534.google.com (mail-ed1-x534.google.com [IPv6:2a00:1450:4864:20::534]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9C172CF; Sun, 6 Aug 2023 06:43:53 -0700 (PDT) Received: by mail-ed1-x534.google.com with SMTP id 4fb4d7f45d1cf-51e2a6a3768so5014510a12.0; Sun, 06 Aug 2023 06:43:53 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1691329432; x=1691934232; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=LahOmtw+dOqGhFwzPmluy7sMbX8L+Z01CVnjmnkuSGE=; b=EQs5tl40ZqlRkOieUvmpt+4gweDpn3uaZuMfP/5OPhZkcxAMbtjuu55ZriQ/hNBd7O gAw61tFcAkK/P7taebAR/DCYAqXAi/fHayaI1/+l8bSDplGZT569mM2lgoXECLKAUQWv Zi7qe0lyAngrCZAmXm2pesi+iLRuzZwZ5PRJoEZpxleytAb5pwVECvER1ZCRLweVtoq5 HyEoiXVE4eopy22W3K8IfQ6PqyHq6K9W91kY8x+pNOj6RIrt8v9vkbrq3DjNemHqlPIv cHRHpyA5mNLIcOMA80n4ZQl5kOEFJp+D/MTIA7IBtiswANmmEtgobgxRO0s5MxBLEbBs BBxg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1691329432; x=1691934232; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=LahOmtw+dOqGhFwzPmluy7sMbX8L+Z01CVnjmnkuSGE=; b=Pb+rko1kESwhWvbYwb3JO4Vl+o6mTtv876u47TLjUn8i0QBMdBsCJs4B2HRsziUUi5 r/WAu7v31BP4sjsfEf0vBntBDKVPdXDJR25+Xldwpq2x8Dg2n00L/tve2uuvHQ/Y5hBM VM57ogxpFaeG7p/dYtCtx3bEkJY+buQlO2fJHKXwH0qcpETrai9K449McmQQNqHHSA1N UDJcRjcysmmUa61KAe7/v/I/sPOu/fMrwz21j9a6Fz+ziS0EAu+26auLDUF5F4LiZAWK mJWiLAZCxlCJeBVNby6ARL5ZaKG3nSQsgFTJeyzagQgO3/MZWZSCfg6Jl4D0sHXs2S01 EPVQ== X-Gm-Message-State: AOJu0YwjhZZhwqCcopOeT6eopsEfgNX6qr9qr97FhSCYmCe0EwHJ/8xb kKozMOy1x3mHgW6KKulGK5E= X-Google-Smtp-Source: AGHT+IEBFtSKShfsGfbCpFMtiZEsrdUskRucT0bUssz2Grq5iCZlM9ACJ1wQ8XcSZrSneHMxv8mb6w== X-Received: by 2002:a17:906:319b:b0:99c:bb4d:f5a0 with SMTP id 27-20020a170906319b00b0099cbb4df5a0mr3426696ejy.14.1691329431999; Sun, 06 Aug 2023 06:43:51 -0700 (PDT) Received: from jernej-laptop.localnet (82-149-1-233.dynamic.telemach.net. [82.149.1.233]) by smtp.gmail.com with ESMTPSA id oz13-20020a170906cd0d00b00992b71d8f19sm1359086ejb.133.2023.08.06.06.43.50 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 06 Aug 2023 06:43:51 -0700 (PDT) From: Jernej =?utf-8?B?xaBrcmFiZWM=?= To: Maxime Ripard , Michael Turquette , Stephen Boyd , Chen-Yu Tsai , Samuel Holland , Andre Przywara , Roman Beranek , Frank Oltmanns Cc: linux-clk@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-sunxi@lists.linux.dev, linux-kernel@vger.kernel.org, Frank Oltmanns Subject: Re: [PATCH v5 11/11] clk: sunxi-ng: nkm: Prefer current parent rate Date: Sun, 06 Aug 2023 15:43:50 +0200 Message-ID: <1904467.taCxCBeP46@jernej-laptop> In-Reply-To: <20230806-pll-mipi_set_rate_parent-v5-11-db4f5ca33fc3@oltmanns.dev> References: <20230806-pll-mipi_set_rate_parent-v5-0-db4f5ca33fc3@oltmanns.dev> <20230806-pll-mipi_set_rate_parent-v5-11-db4f5ca33fc3@oltmanns.dev> MIME-Version: 1.0 Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="us-ascii" Precedence: bulk List-ID: X-Mailing-List: linux-clk@vger.kernel.org Dne nedelja, 06. avgust 2023 ob 15:06:56 CEST je Frank Oltmanns napisal(a): > Similar to ccu_mp, if the current parent rate allows getting the ideal > rate, prefer to not change the parent clock's rate. > > Signed-off-by: Frank Oltmanns Reviewed-by: Jernej Skrabec Best regards, Jernej > --- > drivers/clk/sunxi-ng/ccu_nkm.c | 3 ++- > 1 file changed, 2 insertions(+), 1 deletion(-) > > diff --git a/drivers/clk/sunxi-ng/ccu_nkm.c b/drivers/clk/sunxi-ng/ccu_nkm.c > index 896bb1ef8642..1e49444817cf 100644 > --- a/drivers/clk/sunxi-ng/ccu_nkm.c > +++ b/drivers/clk/sunxi-ng/ccu_nkm.c > @@ -35,7 +35,8 @@ static unsigned long > ccu_nkm_find_best_with_parent_adj(struct ccu_common *common > > tmp_rate = tmp_parent * _n * _k / _m; > > - if (ccu_is_better_rate(common, rate, tmp_rate, best_rate)) { > + if (ccu_is_better_rate(common, rate, tmp_rate, best_rate) || > + (tmp_parent == *parent && tmp_rate == best_rate)) { > best_rate = tmp_rate; > best_parent_rate = tmp_parent; > best_n = _n;