From patchwork Thu Mar 11 17:43:00 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Osipenko X-Patchwork-Id: 12132247 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=-13.7 required=3.0 tests=BAYES_00, DKIM_ADSP_CUSTOM_MED,DKIM_SIGNED,DKIM_VALID,FREEMAIL_FORGED_FROMDOMAIN, FREEMAIL_FROM,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,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 1A1C8C433DB for ; Thu, 11 Mar 2021 17:45:09 +0000 (UTC) Received: from alsa0.perex.cz (alsa0.perex.cz [77.48.224.243]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 4F8DF64F3B for ; Thu, 11 Mar 2021 17:45:08 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 4F8DF64F3B Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=alsa-devel-bounces@alsa-project.org Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id A87F51750; Thu, 11 Mar 2021 18:44:16 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz A87F51750 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1615484706; bh=lM8GOOCpvUTwlOOR+j55s0PnLGsgvCRMd2ds1GLpIqo=; h=From:To:Subject:Date:In-Reply-To:References:Cc:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: From; b=TlPT03mHxLJAzSIlNAyoL/hIFI6ENNaJS0m2l+wuAo2QjNqdjZhCQj2ZiZUgxYh9F hEwYkus5I7juA6AfI6q7ljwlTTyw7zulPrh/t7Aef6gtEv88ymA8ggD++M4cqLZ2VE 2er5afJuM/xjri+pDZka41SoQbLuUeHaJdounbRU= Received: from alsa1.perex.cz (localhost.localdomain [127.0.0.1]) by alsa1.perex.cz (Postfix) with ESMTP id 7C8A1F8010D; Thu, 11 Mar 2021 18:43:29 +0100 (CET) Received: by alsa1.perex.cz (Postfix, from userid 50401) id 10B07F802E7; Thu, 11 Mar 2021 18:43:27 +0100 (CET) Received: from mail-lf1-x12d.google.com (mail-lf1-x12d.google.com [IPv6:2a00:1450:4864:20::12d]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by alsa1.perex.cz (Postfix) with ESMTPS id 04322F8019B for ; Thu, 11 Mar 2021 18:43:14 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz 04322F8019B Authentication-Results: alsa1.perex.cz; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="nPMDAfRV" Received: by mail-lf1-x12d.google.com with SMTP id p21so41094681lfu.11 for ; Thu, 11 Mar 2021 09:43:14 -0800 (PST) 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=2SMSIMvYxaxu4F53i5qtc3hVUmETiEH2Ssz4CshQdOI=; b=nPMDAfRVDDoZs0rrhyF8XsG0pQQNjBacimeiag9hlGeuKQ5Lu0pHbeoRz3avqMOcvx 7GobZrCvZLlROufJ1ApX0WI4zMA5ISknv2y9vbZTmJWJupOKBPJfE84fPWSCA5842JTu 7VAKq5BDxktUVfz0SrBjcmEyVeAAt1qr7Rrj8841PcWrZTg+TLxRroxejVfo34v0An45 rm/bAEN3Ob6X2eI2P/C9TyY7nIaVu4zmVTaCBRwYzsAJdSyoTvfKTCIop+Yh+i+l1QJc yyGFRC2pKSIh9rQOQ+qUi78TNZ1DFBc5qTBo02g1oWlT6sgMpCQDbVtHlyEQ86EAdQhf 5P+Q== 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=2SMSIMvYxaxu4F53i5qtc3hVUmETiEH2Ssz4CshQdOI=; b=r/4srL2Pu7buu6EiZ3r7JTqOVeGjbGMFREeULNBgag5LKJ3BqafQvTXX+d8FPP2VYY QNtONZho8tFSPzgtd3Ht7SNlm/mWrDd9Ab2pBduDM/LUMx4gdZwWo1MvwFpbwkP2yKqu otHtoxaqbVxyklRHKYu6I+RZSHQMS4Twiwqt3qSJk3v2hJWCr8CekOalCqlm3qnepqI6 T7z4uZCoQW/snIJat4dsc+Hw2/28VzJTxVtzJ5zWqXg636kyytLagTt/ttigYxEsrDTE aoLFPXY+6IHm1AujqB8sDDKgV9KyveWQtzsDPmtm5ao+gYap3Bcpms3dx71Ba79wbO6I W/DA== X-Gm-Message-State: AOAM530nmgvFwbHX2GEEzYf6OYUHLf0b9DfjXgcNYJQ4Fe+SKWHRt3Os d9wI9kIUCDXLpoMEV+HHUTWCwgMLcIE= X-Google-Smtp-Source: ABdhPJx7am9gJOeVJtdyhP6kXrjDmeN/fJJmTlBjiUylapuIR/ADwJzfnKrRqmdAVcxiJ1d2hV5Szg== X-Received: by 2002:a19:4850:: with SMTP id v77mr2979755lfa.6.1615484594239; Thu, 11 Mar 2021 09:43:14 -0800 (PST) Received: from localhost.localdomain (109-252-193-52.dynamic.spd-mgts.ru. [109.252.193.52]) by smtp.gmail.com with ESMTPSA id g10sm1021245lfe.90.2021.03.11.09.43.13 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 11 Mar 2021 09:43:14 -0800 (PST) From: Dmitry Osipenko To: Thierry Reding , Jonathan Hunter , Mark Brown , Takashi Iwai , Jaroslav Kysela , Philipp Zabel , Paul Fertser Subject: [PATCH v3 3/5] ASoC: tegra30: i2s: Restore hardware state on runtime PM resume Date: Thu, 11 Mar 2021 20:43:00 +0300 Message-Id: <20210311174302.15430-4-digetx@gmail.com> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20210311174302.15430-1-digetx@gmail.com> References: <20210311174302.15430-1-digetx@gmail.com> MIME-Version: 1.0 Cc: linux-tegra@vger.kernel.org, devicetree@vger.kernel.org, alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: "Alsa-devel" Tegra30 I2S driver syncs regmap cache only on resume from system suspend, but hardware is reset across the runtime suspend because RPM of the parent AHUB driver resets the I2S hardware, hence h/w state is lost after each RPM resume. The problem isn't visible because hardware happens to be fully reprogrammed after each RPM resume. Move hardware syncing to RPM resume in order to restore h/w state properly. Fixes: ed9ce1ed2239 ("ASoC: tegra: ahub: Reset hardware properly") Signed-off-by: Dmitry Osipenko --- sound/soc/tegra/tegra30_i2s.c | 40 +++++++++++------------------------ 1 file changed, 12 insertions(+), 28 deletions(-) diff --git a/sound/soc/tegra/tegra30_i2s.c b/sound/soc/tegra/tegra30_i2s.c index 6740df541508..3d22c1be6f3d 100644 --- a/sound/soc/tegra/tegra30_i2s.c +++ b/sound/soc/tegra/tegra30_i2s.c @@ -58,8 +58,18 @@ static int tegra30_i2s_runtime_resume(struct device *dev) } regcache_cache_only(i2s->regmap, false); + regcache_mark_dirty(i2s->regmap); + + ret = regcache_sync(i2s->regmap); + if (ret) + goto disable_clocks; return 0; + +disable_clocks: + clk_disable_unprepare(i2s->clk_i2s); + + return ret; } static int tegra30_i2s_set_fmt(struct snd_soc_dai *dai, @@ -551,37 +561,11 @@ static int tegra30_i2s_platform_remove(struct platform_device *pdev) return 0; } -#ifdef CONFIG_PM_SLEEP -static int tegra30_i2s_suspend(struct device *dev) -{ - struct tegra30_i2s *i2s = dev_get_drvdata(dev); - - regcache_mark_dirty(i2s->regmap); - - return 0; -} - -static int tegra30_i2s_resume(struct device *dev) -{ - struct tegra30_i2s *i2s = dev_get_drvdata(dev); - int ret; - - ret = pm_runtime_get_sync(dev); - if (ret < 0) { - pm_runtime_put(dev); - return ret; - } - ret = regcache_sync(i2s->regmap); - pm_runtime_put(dev); - - return ret; -} -#endif - static const struct dev_pm_ops tegra30_i2s_pm_ops = { SET_RUNTIME_PM_OPS(tegra30_i2s_runtime_suspend, tegra30_i2s_runtime_resume, NULL) - SET_SYSTEM_SLEEP_PM_OPS(tegra30_i2s_suspend, tegra30_i2s_resume) + SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend, + pm_runtime_force_resume) }; static struct platform_driver tegra30_i2s_driver = {