From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pj1-f53.google.com (mail-pj1-f53.google.com [209.85.216.53]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 4B6484E3773 for ; Fri, 5 Jun 2026 12:21:03 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.216.53 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780662064; cv=none; b=gMjrBZRbx3QJeSDGnVHdHZlIGN2BNRG1XMJqrynUjiuK9LcvagJvGdBymYLT2i/L8o99bpRG/9fzm6UWSTDqJH/CSLMjy02q5UWIbvzm7dNvzZL338iF2MDPGpD+DcjMsovMq6CI8zmrT4A4L8BDxNMWuDILy2tgmTUmLya4pSU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780662064; c=relaxed/simple; bh=JQixsyyJcxvuq6vRrhWqfb0xYNZFr9S1o/h/Dp63Ezk=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=EfikytxXrxAS8vOyHGS61K6mzzHJM8sPlrGadmNSJl84CJzhhP2NNQzRSfBuNtSl0yDEMq4BAb3VHEXjbkGG7OTcg9Bbk3ytT4v04X77VxottMIlH9K3ERCmYghVkYCHhNZMwrT4r+Q9D/MtZYvi8a1xr4wdrVeNFcE8AjcssHo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=McV40nA2; arc=none smtp.client-ip=209.85.216.53 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="McV40nA2" Received: by mail-pj1-f53.google.com with SMTP id 98e67ed59e1d1-36b9ec98144so1233646a91.1 for ; Fri, 05 Jun 2026 05:21:03 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20251104; t=1780662062; x=1781266862; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=tLfT4vQgEatwltGv+p1FnX+A7JnfmLWZ/F6m5Pdu0sU=; b=McV40nA2V6AKKc4/J8JDKMvC75hnCF1tNzuEQvxPC1ShJ7X/3Bjot5YanYmdpZpEr2 uw1hxT4bWg6YVvSSOPCiMPgn5p8hspjiF5jXeMdh7Qv9ug2uPqoFWM2xyOEyz2l5Y/lI GM8I/DDE+CXvjol6jkqgTpYbob1AAo1OfCiNS24vfHrXDUvaXSmBqNuo+m7+k9+5PZvv 57Hbh2K8i5h7FaqJn5FEq3nSqSbKKCGvdBv8bwlRvj/O8tvlLxZRcVP1YW3RFSkRxfAS Kcw4ZspX2L4WqRUar1SD1HNvSjSQMVa8cYfz7t12dn5LWRMXQLslSZapnrMzye9q0TEz 3ZCA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1780662062; x=1781266862; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-gg:x-gm-message-state:from :to:cc:subject:date:message-id:reply-to; bh=tLfT4vQgEatwltGv+p1FnX+A7JnfmLWZ/F6m5Pdu0sU=; b=NGpPpA67+XnQpR8Se8K8XorUOEZBXwhNXEBcFkkfvMhI9nitE8t7VksgTAG0Q/gM7x Mew18ggc0f1nXaU4Ju489yDNhNmAn3+KbYEzbePP6YQExGOvEOU0FUAtTzoDYCfAVj/I e8WefVQov9Fo0of2AW2dim8OLOlsaJIALUO9KcG9KW058JBmsBppw46jJxo3Qm2Eog8z NErf5/AvBaxm9/eWcAbxT5hOfT+MyCwNJ/RfUuQN0Z7uuJCCXCMzIMgjfjIpBu3Z5WW9 1XMCSEsLXyRtNWFlTVSMfGGyBgSDBude9AtfCcVRsv3Njr47cyF33nK24taIzBC4clMi XVSg== X-Forwarded-Encrypted: i=1; AFNElJ/UKPtlf2cjV6r9S48ULgeZndwNsFC4GKI4HJ8mGC6ifHkMhME9YJp65WIqz3WwYxFeWazj736FIXnB@vger.kernel.org X-Gm-Message-State: AOJu0YyBv0MrGO1rBJp1ivZf3rSO7Fe94mqXa5xItiyFRMtOnXI94RMN W4VMK5SlOnt7dpO0+o0REv9iuekbcPsjlofcrLYF0/0Hukig5Ko7njcP8mis6Q== X-Gm-Gg: Acq92OFCclQqOW1WeDrkdJdc87avXEdiB5SeNS/zuk7COk0B0jg5QI6r4JOR67y88oW gziqlR6Evk/mVMDoXfizxUFNwhHgWvDMRoziidAaUN276z/zgvGdKf/hxp3xv4X8NsN6HxW//nb KPKyb3pt1fsUZb0OtL47qQDrRm/s21t8WUdEyFMKuf8olOUG2LrYDEybSUfogNbuThbq5a18S44 CuxXHHTzaVqCUCkZscB02lDOTPG7xY0BaCWRsRqB7TYC574O/zmTUsFoHyzNmWh0pnjBZ4/ByoS /ekzmtq0hFaj1HTPNS0AVnFJjQLMyHUh/zulqSLtnzhAsO0I392NjcJzb5frRMebhkTZ84qM2J9 dSRZ9V8Cbrc01F2dmgbO/WvY8R2fCY1dzAiJ4BkQL5NkCjG7tHOz8PXWtDf/a9UBDnVO3xU5qJS RtIq6GnsP+MipVnwak0onkXLMLsRM4XdYIS5+VIvElMN0WSUZdVRMGE1M0sp6r7u+NBtVq X-Received: by 2002:a17:90b:558d:b0:369:747b:48b8 with SMTP id 98e67ed59e1d1-370ef3e8b74mr3862879a91.8.1780662062568; Fri, 05 Jun 2026 05:21:02 -0700 (PDT) Received: from phuc-desktop.. ([183.91.15.56]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-84282221059sm8594381b3a.7.2026.06.05.05.20.58 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 05 Jun 2026 05:21:02 -0700 (PDT) From: phucduc.bui@gmail.com To: Kuninori Morimoto , Mark Brown , Geert Uytterhoeven Cc: Liam Girdwood , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Magnus Damm , Jaroslav Kysela , Takashi Iwai , linux-sound@vger.kernel.org, linux-renesas-soc@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, bui duc phuc Subject: [PATCH v4 10/10] ASoC: renesas: fsi: Add SPU clock control in hw_startup/shutdown Date: Fri, 5 Jun 2026 19:19:54 +0700 Message-ID: <20260605121955.105661-11-phucduc.bui@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260605121955.105661-1-phucduc.bui@gmail.com> References: <20260605121955.105661-1-phucduc.bui@gmail.com> Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: bui duc phuc Enable and disable the SPU clock in fsi_hw_startup() and fsi_hw_shutdown() to ensure the clock is active while the driver accesses hardware registers. Suggested-by: Kuninori Morimoto Signed-off-by: bui duc phuc --- sound/soc/renesas/fsi.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) diff --git a/sound/soc/renesas/fsi.c b/sound/soc/renesas/fsi.c index 6537321242c0..d7cc5a14a099 100644 --- a/sound/soc/renesas/fsi.c +++ b/sound/soc/renesas/fsi.c @@ -1585,6 +1585,19 @@ static int fsi_hw_startup(struct fsi_priv *fsi, struct device *dev) { u32 data = 0; + int ret; + + /* enable spu clock */ + if (fsi->master->clk_spu) { + scoped_guard(spinlock_irqsave, &fsi->master->lock) { + if (fsi->master->spu_count == 0) { + ret = clk_enable(fsi->master->clk_spu); + if (ret < 0) + return ret; + } + fsi->master->spu_count++; + } + } /* clock setting */ if (fsi_is_clk_master(fsi)) @@ -1642,6 +1655,12 @@ static int fsi_hw_shutdown(struct fsi_priv *fsi, /* stop master clock */ if (fsi_is_clk_master(fsi)) return fsi_clk_disable(dev, fsi); + if (fsi->master->clk_spu) { + scoped_guard(spinlock_irqsave, &fsi->master->lock) { + if (--fsi->master->spu_count == 0) + clk_disable(fsi->master->clk_spu); + } + } return 0; } -- 2.43.0