From patchwork Fri Jul 7 07:59:26 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Manivannan Sadhasivam X-Patchwork-Id: 13304524 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3F5B8C001B0 for ; Fri, 7 Jul 2023 07:59:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232506AbjGGH7l (ORCPT ); Fri, 7 Jul 2023 03:59:41 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44394 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229692AbjGGH7k (ORCPT ); Fri, 7 Jul 2023 03:59:40 -0400 Received: from mail-pl1-x629.google.com (mail-pl1-x629.google.com [IPv6:2607:f8b0:4864:20::629]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7FC69E70 for ; Fri, 7 Jul 2023 00:59:38 -0700 (PDT) Received: by mail-pl1-x629.google.com with SMTP id d9443c01a7336-1b89cfb4571so10542665ad.3 for ; Fri, 07 Jul 2023 00:59:38 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1688716778; x=1691308778; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=1cyFcCo0AIyHrkKebNzzbMpmXnBhNWrpNFTAuGFxeZk=; b=pBFTiIaUtf/RWLtnlfEgMlrQg7hqonr8cLMJRuDq3pxQxH3t3R+zQNtyYxq5ADvQla /s15FnswtpohBS7cH1uXyX0C5SRMGyTcIdOgao1saYFa+eW1yA5ic+IteYoHu7JYFh0S WDNeHuwFpYYLiRWeQrKqgzJX8GlaNtvA2kYaWcRuNHt0NesSZ0Ytap5EZZUp3786K2kz GuOY2bX6MvUeto3IX1P8UjiXaY3LuvjSCrRRwjQgxJgepjqctPlFtpJxcs2DcSHCLpdY FBiTb6n83l1I58hEzGSTmxA+Wl8gtu2orKBf7i4cfQu7vfOCMgYeoDC54w7j1kW9EEPh lwlQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1688716778; x=1691308778; 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=1cyFcCo0AIyHrkKebNzzbMpmXnBhNWrpNFTAuGFxeZk=; b=PT0zVLjRez+9LsDC40+3VYfYikxuxh8VwKMriwOzhLWlivU1VOhOC7SfPRA6FUg+Hl IhiPXY05JksU3WoccobD15JQOJ4y7fxj32PlFmu6VM6AruSI09aWYOwnmBLG9kDiWomg SQu5rxpUmhDCcACCgl/dS47sCmMNQSXI4xu/fwAzh+gKboz3xRCa09amvTWGO9b4RkQs UnuBC16mzoopNCkFMaCNt+3YmF6QLAOeeW8CEZEp9Ig80ERdN6Z5BOwHNT1eAlpmvikt LWcaPAjT+4xrCerZgoiGGB6SqqDTySj8RBkiy9s6bROf7AoLyVKtTti4+uMUyIRm+63o wm9g== X-Gm-Message-State: ABy/qLbnhQ/c6shZN2mDXJjMmnOhXEvjhVVYrdqMbpnyMdu8YLAL+/Ad XZxSXlxvJl+pGarvdnyL+kzr X-Google-Smtp-Source: APBJJlFLh04FpGQHsgqPpET6FSYphccKa+HKAmDFVCxp9XZGJEK9WPDG8svSExGUGYH8Q22HnEzFpQ== X-Received: by 2002:a17:902:e5cf:b0:1b8:aee8:a21c with SMTP id u15-20020a170902e5cf00b001b8aee8a21cmr5299245plf.31.1688716778006; Fri, 07 Jul 2023 00:59:38 -0700 (PDT) Received: from localhost.localdomain ([117.216.120.82]) by smtp.gmail.com with ESMTPSA id e15-20020a17090301cf00b001b8c3c7b102sm2585255plh.127.2023.07.07.00.59.34 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 07 Jul 2023 00:59:37 -0700 (PDT) From: Manivannan Sadhasivam To: andersson@kernel.org, mturquette@baylibre.com, sboyd@kernel.org Cc: konrad.dybcio@linaro.org, johan+linaro@kernel.org, linux-arm-msm@vger.kernel.org, linux-clk@vger.kernel.org, linux-kernel@vger.kernel.org, Manivannan Sadhasivam Subject: [PATCH v3] clk: qcom: gcc-sc8280xp: Allow PCIe GDSCs to enter retention state Date: Fri, 7 Jul 2023 13:29:26 +0530 Message-Id: <20230707075926.11726-1-manivannan.sadhasivam@linaro.org> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-clk@vger.kernel.org With the minimal system suspend support in place for the PCIe driver that keeps the interconnect path voted, the ALWAYS_ON flag can now be dropped. Also, the pwrsts PWRSTS_RET_ON flag should be used to allow the GDSCs to enter the retention state when the parent domain get's turned off during system suspend. Signed-off-by: Manivannan Sadhasivam --- This patch depends on: https://lore.kernel.org/linux-arm-msm/20230620-topic-sc8280_gccgdsc-v2-0-562c1428c10d@linaro.org/ Changes in v3: * Fixed the erroneous PWRSTS_RET_ON assignment * Rebased on top of Konrad's series Changes in v2: * Changed the patch from simple revert to changing the ALWAYS_ON flag to PWRSTS_RET_ON. drivers/clk/qcom/gcc-sc8280xp.c | 20 ++++++++++---------- 1 file changed, 10 insertions(+), 10 deletions(-) diff --git a/drivers/clk/qcom/gcc-sc8280xp.c b/drivers/clk/qcom/gcc-sc8280xp.c index 57bbd609151c..39c46b7ee09a 100644 --- a/drivers/clk/qcom/gcc-sc8280xp.c +++ b/drivers/clk/qcom/gcc-sc8280xp.c @@ -6785,8 +6785,8 @@ static struct gdsc pcie_2a_gdsc = { .pd = { .name = "pcie_2a_gdsc", }, - .pwrsts = PWRSTS_OFF_ON, - .flags = VOTABLE | RETAIN_FF_ENABLE | ALWAYS_ON, + .pwrsts = PWRSTS_RET_ON, + .flags = VOTABLE | RETAIN_FF_ENABLE, }; static struct gdsc pcie_2b_gdsc = { @@ -6796,8 +6796,8 @@ static struct gdsc pcie_2b_gdsc = { .pd = { .name = "pcie_2b_gdsc", }, - .pwrsts = PWRSTS_OFF_ON, - .flags = VOTABLE | RETAIN_FF_ENABLE | ALWAYS_ON, + .pwrsts = PWRSTS_RET_ON, + .flags = VOTABLE | RETAIN_FF_ENABLE, }; static struct gdsc pcie_3a_gdsc = { @@ -6807,8 +6807,8 @@ static struct gdsc pcie_3a_gdsc = { .pd = { .name = "pcie_3a_gdsc", }, - .pwrsts = PWRSTS_OFF_ON, - .flags = VOTABLE | RETAIN_FF_ENABLE | ALWAYS_ON, + .pwrsts = PWRSTS_RET_ON, + .flags = VOTABLE | RETAIN_FF_ENABLE, }; static struct gdsc pcie_3b_gdsc = { @@ -6818,8 +6818,8 @@ static struct gdsc pcie_3b_gdsc = { .pd = { .name = "pcie_3b_gdsc", }, - .pwrsts = PWRSTS_OFF_ON, - .flags = VOTABLE | RETAIN_FF_ENABLE | ALWAYS_ON, + .pwrsts = PWRSTS_RET_ON, + .flags = VOTABLE | RETAIN_FF_ENABLE, }; static struct gdsc pcie_4_gdsc = { @@ -6829,8 +6829,8 @@ static struct gdsc pcie_4_gdsc = { .pd = { .name = "pcie_4_gdsc", }, - .pwrsts = PWRSTS_OFF_ON, - .flags = VOTABLE | RETAIN_FF_ENABLE | ALWAYS_ON, + .pwrsts = PWRSTS_RET_ON, + .flags = VOTABLE | RETAIN_FF_ENABLE, }; static struct gdsc ufs_card_gdsc = {