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 X-Spam-Level: X-Spam-Status: No, score=-9.6 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable 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 CABC3C32756 for ; Sun, 11 Aug 2019 21:25:06 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 9F1BE2084D for ; Sun, 11 Aug 2019 21:25:06 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="XR7JXM2t" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726797AbfHKVYw (ORCPT ); Sun, 11 Aug 2019 17:24:52 -0400 Received: from mail-lj1-f194.google.com ([209.85.208.194]:33097 "EHLO mail-lj1-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726758AbfHKVYw (ORCPT ); Sun, 11 Aug 2019 17:24:52 -0400 Received: by mail-lj1-f194.google.com with SMTP id z17so8177943ljz.0; Sun, 11 Aug 2019 14:24:50 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=etmyJ8NDuEkpkehamLf+URJIlzZFEVYkuu77P3IBsfM=; b=XR7JXM2tRUkthQ97FN4JN2D4mChDkusaiD6wyobi9XCGIboYJrAxbszWX9mRFkzY6J OMykSerGSKhj8iwqymUuJI0mP5ZS+qhga8iwXBkgT7ZQks5733bBQw71S5p+lJHJJt9r y1UbRWghmhb+yUJDt6BJAeGkIzQj2OXUlcIkZj6Afn4bYbTa7IrZPaApCgKFSR4/7jU4 JbORS/aCiWYMDqqa+8n8mn9NtFm5H8FSfRiHBVZ09QSm9qOd0JRbVCFRTs0xpm7gx52o 9Ukge/2J3zB92w6+8WH3+5uQqbxfrTGYgeDI83XKFnb2WLpKf8h68T3BOxL7XrvYNjeX 3CAw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=etmyJ8NDuEkpkehamLf+URJIlzZFEVYkuu77P3IBsfM=; b=c3EIWqLPl3hcx9Jikn8ecig+91sbfOI2QtTVNUgoqxc7VFIKnTnf+xVDclUhLc4Te6 Oi9D5kKPjYZHzkW4ReCWwfAEOUiW99s4C9NYii6sf/Qibi81ny89ufsfVY5NBKTy0wx9 y7d+MaZnflLr5uNqChJfn8qvaRdbQfgTNxFu+LUEGu/gR6IA7Atm2jhiomIIePurbSUn l25coB71nfLjA3CNk820g6KUOT+Aek0ib7b6TMdW7b9HLDbWPivlHzgQ/+zMdyvHkKZA 1AJbO/NkJOUlL/Vdfu8w4y0nzz1yAloKD78MPMNCQskaSxYhji6nMo5fpmyA+N9zm/fL k+xQ== X-Gm-Message-State: APjAAAX3KY4Jd4xfHpYGbeFra2pt0rzi4oXG2Ux815oWR3Z4zhjtrDwo ztOV0SAlUUYVx1mGybR9YVU= X-Google-Smtp-Source: APXvYqzir4uH/KRi6sERHQmP+keyTASgopDNK32wn+9dLri0OfqfQanJ5f5Xu4Hgs627HgAVszizAw== X-Received: by 2002:a2e:6e0c:: with SMTP id j12mr17251875ljc.123.1565558689810; Sun, 11 Aug 2019 14:24:49 -0700 (PDT) Received: from localhost.localdomain ([94.29.34.218]) by smtp.gmail.com with ESMTPSA id f1sm20470806ljk.86.2019.08.11.14.24.48 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sun, 11 Aug 2019 14:24:49 -0700 (PDT) From: Dmitry Osipenko To: Thierry Reding , MyungJoo Ham , Kyungmin Park , Chanwoo Choi , Jonathan Hunter , Tomeu Vizoso Cc: linux-pm@vger.kernel.org, linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v6 17/19] PM / devfreq: tegra30: Increase sampling period to 16ms Date: Mon, 12 Aug 2019 00:23:13 +0300 Message-Id: <20190811212315.12689-18-digetx@gmail.com> X-Mailer: git-send-email 2.22.0 In-Reply-To: <20190811212315.12689-1-digetx@gmail.com> References: <20190811212315.12689-1-digetx@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-pm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org Increase sampling period by 4ms to get a nicer pow2 value, converting diving into shifts in the code. That's more preferable for Tegra30 that doesn't have hardware divider instructions because of older Cortex-A9 CPU. In a result boosting events are delayed by 4ms, which is not sensible in practice at all. Reviewed-by: Chanwoo Choi Signed-off-by: Dmitry Osipenko --- drivers/devfreq/tegra30-devfreq.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/devfreq/tegra30-devfreq.c b/drivers/devfreq/tegra30-devfreq.c index 9753985c9131..8adc0ff48b45 100644 --- a/drivers/devfreq/tegra30-devfreq.c +++ b/drivers/devfreq/tegra30-devfreq.c @@ -69,7 +69,7 @@ * translates to 2 ^ (K_VAL + 1). ex: 2 ^ (6 + 1) = 128 */ #define ACTMON_AVERAGE_WINDOW_LOG2 6 -#define ACTMON_SAMPLING_PERIOD 12 /* ms */ +#define ACTMON_SAMPLING_PERIOD 16 /* ms */ #define KHZ 1000 -- 2.22.0