From patchwork Wed Jun 21 19:08:07 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Krzysztof Kozlowski X-Patchwork-Id: 9802695 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 82D216038C for ; Wed, 21 Jun 2017 19:08:46 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 73E0528609 for ; Wed, 21 Jun 2017 19:08:46 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 6887E2863A; Wed, 21 Jun 2017 19:08:46 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 159DD28609 for ; Wed, 21 Jun 2017 19:08:46 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751875AbdFUTIZ (ORCPT ); Wed, 21 Jun 2017 15:08:25 -0400 Received: from mail.kernel.org ([198.145.29.99]:55620 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751865AbdFUTIX (ORCPT ); Wed, 21 Jun 2017 15:08:23 -0400 Received: from kozik-lap.dzcmts001-cpe-001.datazug.ch (pub082136089155.dh-hfc.datazug.ch [82.136.89.155]) (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 7D5B221D2C; Wed, 21 Jun 2017 19:08:20 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 7D5B221D2C Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=krzk@kernel.org From: Krzysztof Kozlowski To: Kukjin Kim , Krzysztof Kozlowski , Javier Martinez Canillas , Sylwester Nawrocki , Tomasz Figa , Chanwoo Choi , Michael Turquette , Stephen Boyd , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-clk@vger.kernel.org Cc: Marek Szyprowski Subject: [PATCH 2/2] ARM: dts: exynos: Add clocks to audss block to fix silent hang on Exynos4412 Date: Wed, 21 Jun 2017 21:08:07 +0200 Message-Id: <20170621190807.14850-3-krzk@kernel.org> X-Mailer: git-send-email 2.9.3 In-Reply-To: <20170621190807.14850-1-krzk@kernel.org> References: <20170621190807.14850-1-krzk@kernel.org> Sender: linux-clk-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-clk@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Add necessary parent clocks for audss (Audio SubSystem, MAUDIO) clock controller block. This allows driver to keep EPLL enabled before accessing any MAUDIO registers thus fixing silent hang. This silent hang appeard with commit 6edfa11cb396 ("clk: samsung: Add enable/disable operation for PLL36XX clocks"), e.g. on Odroid U3 usually with last (but unrelated) messages: [ 2.382741] input: gpio_keys as /devices/platform/gpio_keys/input/input0 [ 2.405686] usb 1-3: new high-speed USB device number 3 using exynos-ehci [ 2.419843] max77686-rtc max77686-rtc: setting system clock to 2017-06-21 17:04:13 UTC (1498064653) Signed-off-by: Krzysztof Kozlowski --- arch/arm/boot/dts/exynos4.dtsi | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/arm/boot/dts/exynos4.dtsi b/arch/arm/boot/dts/exynos4.dtsi index 497a9470c888..5739389f5bb8 100644 --- a/arch/arm/boot/dts/exynos4.dtsi +++ b/arch/arm/boot/dts/exynos4.dtsi @@ -59,6 +59,9 @@ compatible = "samsung,exynos4210-audss-clock"; reg = <0x03810000 0x0C>; #clock-cells = <1>; + clocks = <&clock CLK_FIN_PLL>, <&clock CLK_FOUT_EPLL>, + <&clock CLK_SCLK_AUDIO0>, <&clock CLK_SCLK_AUDIO0>; + clock-names = "pll_ref", "pll_in", "sclk_audio", "sclk_pcm_in"; }; i2s0: i2s@03830000 {