From patchwork Mon Jul 22 10:57:33 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Manivannan Sadhasivam X-Patchwork-Id: 814236 Received: from mail-pg1-f176.google.com (mail-pg1-f176.google.com [209.85.215.176]) (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 EBDEB1684A3 for ; Mon, 22 Jul 2024 10:57:53 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.215.176 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1721645876; cv=none; b=NDT8UnitNlKAVGtB1+5RfzB9spobLAj1Fj6jJo16Dk3YMXoeMdy2q1qYBu7U4cPTf9yjoG2l9I+E0LmxbDTjd6+1c1XW+VWF3CTB1trI67Pjlm7/lPnyVjGlc9VFVBrziwudEVb7STRDrHvR2wsb0Z0jZHVAdG0tGfEieXck1i0= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1721645876; c=relaxed/simple; bh=OI9ivS0KG2RvRIz9Kdlx0Ag7Wy1NAEIIjtXE0CRf7TE=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=GDNrRVbmpoM2pUPOvKURKWOn8Jf+LtUfYmSQnyXJ+CD6edRGrYdme8MG41syIC9OP9GVCY+HbsbSLMLLYFmN21+nQoXaeWE5+M8J69VaQdJLJfUQ4BXikc7Xg3jCm8QnSrI8YVS65cEwMwpArEevWSl+kpLjFEzCds2gEGHWdj8= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linaro.org; spf=pass smtp.mailfrom=linaro.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b=cphgk2Sn; arc=none smtp.client-ip=209.85.215.176 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linaro.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linaro.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="cphgk2Sn" Received: by mail-pg1-f176.google.com with SMTP id 41be03b00d2f7-7a0c6ab3354so660952a12.0 for ; Mon, 22 Jul 2024 03:57:53 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1721645873; x=1722250673; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=KlyfwInqQ9SWjZNJvK5iqTVzQocr8JHKV8CHQ/SRg5g=; b=cphgk2Sn8FgSirVCSUkbTISzl778IHcWbKE2JBMnLzeFontkbCOzxGE9hcPHzsWZTx 2iHZP2Zc4WOkcodyvtzuj3CSYi2fV+49SE/rNqxPG0VpbqZbAvNyECeueF6cbT9Ozn+F V7eBy67avkyhinp3+iR6nOaLD+1+5uFpQMedKvDpZ4puwiN+6ZBiy1yzBpdjv+1H45Ae Jt9opuzvuEcoLlwtgJZ49A5d1OMck/OO2YsxJ2z3CvBTiTtawZ0/tEWw2X/3ltTByeXH pxFTFENjeVUE3TVE6QEUOz9O4uaacoRz1Iyu1sHEnRf9nqnhRZ8byIJy7Wi10NMk5k6t L2uA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1721645873; x=1722250673; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=KlyfwInqQ9SWjZNJvK5iqTVzQocr8JHKV8CHQ/SRg5g=; b=X8nNdiF2lm/mLnWvVjXcwYBYJphTtyq0G6N/bGtuYcjytsWE8UYkfeghbRPVcqt2ie EcnJYieVe/n1OdH2tQ7J/k4GNx+87KhY/EZt/+mNf5q+CwADX5VaLduQ/G4Fr2Kan8M+ J/tUhoZD2dYG4Tty4HnAUPH9GOSEoxHwJxa3o+8Yu+mSEO4pbZKJnIytV9ldhDQj1hf7 B7ET3ztQ702mk6ftTFujFi9qmnyFoTNMG6OOPOYoX1vIwnmPgVJbVBjXkwMNewPiY8eE /bhBzgQ18LdLsagkoKppqUYfvGy32/QoF/7ImWbnQu9kRyk25HAryF5+zbSBvZOlCy4N sIaA== X-Gm-Message-State: AOJu0Yw6mv39rT4tiMUjZipMiJlW3ulD404+cC1TCPcCqUc5gZPQRHgT L/PlrmB0M75oRhMEAiYnPoxG7/VeEAFSSQytGPKWz7D8x+XU3P91aFZrGG0bvA== X-Google-Smtp-Source: AGHT+IGzSZ/AeiRRay9oWlzAsexbnmsYckOBqmIpeLDEUB9QOhiN/310nuLGsNRvsdmRD1v3mLFznw== X-Received: by 2002:a05:6a21:670d:b0:1c2:8d2f:65f4 with SMTP id adf61e73a8af0-1c4229a42fbmr5153409637.44.1721645873135; Mon, 22 Jul 2024 03:57:53 -0700 (PDT) Received: from localhost.localdomain ([120.60.138.134]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-2ccf808f050sm6683862a91.45.2024.07.22.03.57.50 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 22 Jul 2024 03:57:52 -0700 (PDT) From: Manivannan Sadhasivam To: andersson@kernel.org, mturquette@baylibre.com, sboyd@kernel.org Cc: linux-arm-msm@vger.kernel.org, linux-clk@vger.kernel.org, linux-kernel@vger.kernel.org, Manivannan Sadhasivam , stable@vger.kernel.org Subject: [PATCH] clk: qcom: gcc-sm8450: Do not turn off PCIe GDSCs during gdsc_disable() Date: Mon, 22 Jul 2024 16:27:33 +0530 Message-Id: <20240722105733.13040-1-manivannan.sadhasivam@linaro.org> X-Mailer: git-send-email 2.25.1 Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 With PWRSTS_OFF_ON, PCIe GDSCs are turned off during gdsc_disable(). This can happen during scenarios such as system suspend and breaks the resume of PCIe controllers from suspend. So use PWRSTS_RET_ON to indicate the GDSC driver to not turn off the GDSCs during gdsc_disable() and allow the hardware to transition the GDSCs to retention when the parent domain enters low power state during system suspend. Cc: stable@vger.kernel.org # 5.17 Fixes: db0c944ee92b ("clk: qcom: Add clock driver for SM8450") Signed-off-by: Manivannan Sadhasivam --- drivers/clk/qcom/gcc-sm8450.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/clk/qcom/gcc-sm8450.c b/drivers/clk/qcom/gcc-sm8450.c index 639a9a955914..c445c271678a 100644 --- a/drivers/clk/qcom/gcc-sm8450.c +++ b/drivers/clk/qcom/gcc-sm8450.c @@ -2974,7 +2974,7 @@ static struct gdsc pcie_0_gdsc = { .pd = { .name = "pcie_0_gdsc", }, - .pwrsts = PWRSTS_OFF_ON, + .pwrsts = PWRSTS_RET_ON, }; static struct gdsc pcie_1_gdsc = { @@ -2982,7 +2982,7 @@ static struct gdsc pcie_1_gdsc = { .pd = { .name = "pcie_1_gdsc", }, - .pwrsts = PWRSTS_OFF_ON, + .pwrsts = PWRSTS_RET_ON, }; static struct gdsc ufs_phy_gdsc = {