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=-10.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,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 CA518C33CAF for ; Thu, 16 Jan 2020 18:00:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A56C724679 for ; Thu, 16 Jan 2020 18:00:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1579197605; bh=YZ2eOXNd1MQ+7yOmzjKQ5GQzCB/Y6PKyK96hicTHRTs=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=fh+XRXU709ZN+4qWDjn1JH+NQYJknPq9EzrDSVuZZY3ynYn7hcFrJooRasr8gj3mJ G8Dz7ezx4aFDbTB6RGRwh0i+A1N5FK3foTuZg39ElCw91XmKvML7EENPoF0nVX31Hu 3lOYadIRnx2a4jwdEBrANuIHJCbs1XCv/2LyQSj8= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2405519AbgAPRmV (ORCPT ); Thu, 16 Jan 2020 12:42:21 -0500 Received: from mail.kernel.org ([198.145.29.99]:59078 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2405669AbgAPRl1 (ORCPT ); Thu, 16 Jan 2020 12:41:27 -0500 Received: from sasha-vm.mshome.net (c-73-47-72-35.hsd1.nh.comcast.net [73.47.72.35]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id C18BB246EF; Thu, 16 Jan 2020 17:41:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1579196487; bh=YZ2eOXNd1MQ+7yOmzjKQ5GQzCB/Y6PKyK96hicTHRTs=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=tHgeNC6ZatSXn2vm4EjG3CiCTr3B3Q1Ac9rkb8pYznl/C1rUH7a+6x5/uvJVutwZY xXN1eg+V3aEnzXFoLk4icYdoqqTUeC97Vm7iwp5GxZGyPzFkEYVnZgHk3ysl50QixU /rFn9TMhEd0wEl6pfeV+JPYOqNWxNGuGzUh95G0s= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Marian Mihailescu , Sylwester Nawrocki , Sasha Levin , linux-samsung-soc@vger.kernel.org, linux-clk@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH AUTOSEL 4.9 232/251] clk: samsung: exynos5420: Preserve CPU clocks configuration during suspend/resume Date: Thu, 16 Jan 2020 12:36:21 -0500 Message-Id: <20200116173641.22137-192-sashal@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200116173641.22137-1-sashal@kernel.org> References: <20200116173641.22137-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Marian Mihailescu [ Upstream commit e21be0d1d7bd7f78a77613f6bcb6965e72b22fc1 ] Save and restore top PLL related configuration registers for big (APLL) and LITTLE (KPLL) cores during suspend/resume cycle. So far, CPU clocks were reset to default values after suspend/resume cycle and performance after system resume was affected when performance governor has been selected. Fixes: 773424326b51 ("clk: samsung: exynos5420: add more registers to restore list") Signed-off-by: Marian Mihailescu Signed-off-by: Sylwester Nawrocki Signed-off-by: Sasha Levin --- drivers/clk/samsung/clk-exynos5420.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/clk/samsung/clk-exynos5420.c b/drivers/clk/samsung/clk-exynos5420.c index 2bb88d125113..7f8c7cf3c2ab 100644 --- a/drivers/clk/samsung/clk-exynos5420.c +++ b/drivers/clk/samsung/clk-exynos5420.c @@ -170,6 +170,8 @@ static const unsigned long exynos5x_clk_regs[] __initconst = { GATE_BUS_CPU, GATE_SCLK_CPU, CLKOUT_CMU_CPU, + APLL_CON0, + KPLL_CON0, CPLL_CON0, DPLL_CON0, EPLL_CON0, -- 2.20.1