From patchwork Tue Dec 3 22:31:15 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg Kroah-Hartman X-Patchwork-Id: 180749 Delivered-To: patch@linaro.org Received: by 2002:a92:3001:0:0:0:0:0 with SMTP id x1csp2152963ile; Tue, 3 Dec 2019 14:47:10 -0800 (PST) X-Google-Smtp-Source: APXvYqxWSei2Iw1bkClaMkKbY7WO6ISFWbPWIvWlNiycAoLhUFyi6rx8yR7UlNsPxR5YdmEjw3Yz X-Received: by 2002:a9d:7612:: with SMTP id k18mr233272otl.44.1575413230693; Tue, 03 Dec 2019 14:47:10 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1575413230; cv=none; d=google.com; s=arc-20160816; b=RZBdeVgfE37Vq1hKF5/TrLjOvSfZ5sNoS4fWNnzkYVK/FcD7EEYlTGtcqMqRIFt+qY 7Ek0k1Hb1niHDkZx+xVSr+fhiwKOiE70D2MJ45U3Wp9zHwanqB4ziNUvDvPiRy/gES7W NNF4AcfH+YBL3P5dy3Vh7Sp0zNJTIDK6Y22Kiw9bQSakdzNkE+TRhq6czi1iyiKljRbZ qxF5TReV4BQwXxB9SjsTtskTKVwMJVl/6k7etlNI9w4T1/xAExYBjnePmbzuPHqq0lql g+/NsuBTo80Vhn3IpNTH/luaMpX0lnTvtAu6XCGs6Lx46ZsXX74VulrqCLrkXx+3tSxy N4GQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:content-transfer-encoding:mime-version :user-agent:references:in-reply-to:message-id:date:subject:cc:to :from:dkim-signature; bh=DoxIoK0gcAggquiiUQWLru7YGdfyvqKgGShVGa/M1Ak=; b=Du/3NARJLcsLt8+E0ktjQa46DGfOL2sbftUIEk+9jC129RCpLWggoR3wnGv9t5FVO9 NoggtvWSyKREA9CaBQ4SAJPEy8QDDFk9QalYnwZ4nyqfdzf+uXVxThajjHpUII3HblgH 6UaXTFalOu4MRgDZHcgMrVEIp+0EDobwrqNVCOFbo3LSedC39QKcQb65jg/qoQSBQIfD T3shFBqsZbSytoJC+aWhDE6t0T4F+NE9cCoEBon4XYe3DmvcQuYXBHSsfnicQsdEh4Un 0EmbiuDimypTQLpjOwtqWcRrLEWGkKNKqAkxq73WLn0C6Dhlsw+zsoki22hYndOlK3UI 1LVg== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@kernel.org header.s=default header.b="1o5r/nwf"; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id v19si2171699otn.313.2019.12.03.14.47.10; Tue, 03 Dec 2019 14:47:10 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=default header.b="1o5r/nwf"; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729011AbfLCWrJ (ORCPT + 27 others); Tue, 3 Dec 2019 17:47:09 -0500 Received: from mail.kernel.org ([198.145.29.99]:37108 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728366AbfLCWrF (ORCPT ); Tue, 3 Dec 2019 17:47:05 -0500 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 9B7E820848; Tue, 3 Dec 2019 22:47:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1575413224; bh=4ZcsvoMK3RPGa38JXaoPa51rrnxfLzp8nAkqbLym/nk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=1o5r/nwfVHoFLuzBVtLW5H3K3jCIk3Du4JRU8SjK00u3JiC1JteMv9hl/eiRqM1sH 6h5IRrVZ87gWdhLSkFCq2Df9XhBvgZOnD6QjzfXE7oD/NX2NFaKaY/Y443IFxhmM/2 jeETSKszlpCpxwHU6RXfmWVx3QSjj9L1taGXWcfw= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, "Reported-by: Marian Mihailescu" , Marek Szyprowski , Sylwester Nawrocki , Sasha Levin Subject: [PATCH 4.19 009/321] clk: samsung: exynos5420: Preserve PLL configuration during suspend/resume Date: Tue, 3 Dec 2019 23:31:15 +0100 Message-Id: <20191203223427.605281159@linuxfoundation.org> X-Mailer: git-send-email 2.24.0 In-Reply-To: <20191203223427.103571230@linuxfoundation.org> References: <20191203223427.103571230@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Marek Szyprowski [ Upstream commit e9323b664ce29547d996195e8a6129a351c39108 ] Properly save and restore all top PLL related configuration registers during suspend/resume cycle. So far driver only handled EPLL and RPLL clocks, all other were reset to default values after suspend/resume cycle. This caused for example lower G3D (MALI Panfrost) performance after system resume, even if performance governor has been selected. Reported-by: Reported-by: Marian Mihailescu Fixes: 773424326b51 ("clk: samsung: exynos5420: add more registers to restore list") Signed-off-by: Marek Szyprowski Signed-off-by: Sylwester Nawrocki Signed-off-by: Sasha Levin --- drivers/clk/samsung/clk-exynos5420.c | 6 ++++++ 1 file changed, 6 insertions(+) -- 2.20.1 diff --git a/drivers/clk/samsung/clk-exynos5420.c b/drivers/clk/samsung/clk-exynos5420.c index ce30862617a6e..d5af937212992 100644 --- a/drivers/clk/samsung/clk-exynos5420.c +++ b/drivers/clk/samsung/clk-exynos5420.c @@ -171,12 +171,18 @@ static const unsigned long exynos5x_clk_regs[] __initconst = { GATE_BUS_CPU, GATE_SCLK_CPU, CLKOUT_CMU_CPU, + CPLL_CON0, + DPLL_CON0, EPLL_CON0, EPLL_CON1, EPLL_CON2, RPLL_CON0, RPLL_CON1, RPLL_CON2, + IPLL_CON0, + SPLL_CON0, + VPLL_CON0, + MPLL_CON0, SRC_TOP0, SRC_TOP1, SRC_TOP2,