From patchwork Tue Aug 11 19:02:51 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sibi Sankar X-Patchwork-Id: 11709507 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 0E67A618 for ; Tue, 11 Aug 2020 19:03:25 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E350E206DA for ; Tue, 11 Aug 2020 19:03:24 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=mg.codeaurora.org header.i=@mg.codeaurora.org header.b="mdzgS+Y0" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725901AbgHKTDY (ORCPT ); Tue, 11 Aug 2020 15:03:24 -0400 Received: from mail29.static.mailgun.info ([104.130.122.29]:49974 "EHLO mail29.static.mailgun.info" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725987AbgHKTDX (ORCPT ); Tue, 11 Aug 2020 15:03:23 -0400 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1597172603; h=Content-Transfer-Encoding: MIME-Version: Message-Id: Date: Subject: Cc: To: From: Sender; bh=HljQQp33frmN6u0YNBwroLG0IWIVB8zjZKCZzfIJiAM=; b=mdzgS+Y0m2wijqRyDqoxLXNtbJBxbDVRsHPO5TY5ipmFZWAh3sgT7kHFkxrcI6K5we+sGpGw 4ze2/f2VwFn4XOHBxEzP/wn6dzmKitvJOmDEUNWnN8pqzSdi62q5F6yLbGrq7eCfjdzRV9HV 0D12a0EuQB76RU99f0xnsU2dxto= X-Mailgun-Sending-Ip: 104.130.122.29 X-Mailgun-Sid: WyI1MzIzYiIsICJsaW51eC1hcm0tbXNtQHZnZXIua2VybmVsLm9yZyIsICJiZTllNGEiXQ== Received: from smtp.codeaurora.org (ec2-35-166-182-171.us-west-2.compute.amazonaws.com [35.166.182.171]) by smtp-out-n10.prod.us-east-1.postgun.com with SMTP id 5f32eb75440a07969ac3ce66 (version=TLS1.2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256); Tue, 11 Aug 2020 19:03:17 GMT Received: by smtp.codeaurora.org (Postfix, from userid 1001) id E616BC4339C; Tue, 11 Aug 2020 19:03:16 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-caf-mail-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-1.0 required=2.0 tests=ALL_TRUSTED,SPF_NONE autolearn=unavailable autolearn_force=no version=3.4.0 Received: from blr-ubuntu-253.qualcomm.com (blr-bdr-fw-01_GlobalNAT_AllZones-Outside.qualcomm.com [103.229.18.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: sibis) by smtp.codeaurora.org (Postfix) with ESMTPSA id 1F7DCC433C6; Tue, 11 Aug 2020 19:03:11 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 1F7DCC433C6 Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; spf=none smtp.mailfrom=sibis@codeaurora.org From: Sibi Sankar To: bjorn.andersson@linaro.org, ulf.hansson@linaro.org, rjw@rjwysocki.net Cc: agross@kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-pm@vger.kernel.org, gregkh@linuxfoundation.org, pavel@ucw.cz, len.brown@intel.com, rnayak@codeaurora.org, dianders@chromium.org, khilman@kernel.org, Sibi Sankar Subject: [PATCH 1/2] PM / Domains: Add GENPD_FLAG_SUSPEND_ON flag Date: Wed, 12 Aug 2020 00:32:51 +0530 Message-Id: <20200811190252.10559-1-sibis@codeaurora.org> X-Mailer: git-send-email 2.27.0 MIME-Version: 1.0 Sender: linux-arm-msm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org This is for power domains which needs to stay powered on for suspend but can be powered on/off as part of runtime PM. This flag is aimed at power domains coupled to remote processors which enter suspend states independent to that of the application processor. Such power domains are turned off only on remote processor crash/shutdown. Signed-off-by: Sibi Sankar Reviewed-by: Douglas Anderson Tested-by: Douglas Anderson --- drivers/base/power/domain.c | 3 ++- include/linux/pm_domain.h | 5 +++++ 2 files changed, 7 insertions(+), 1 deletion(-) diff --git a/drivers/base/power/domain.c b/drivers/base/power/domain.c index 2cb5e04cf86cd..ba78ac4a450d4 100644 --- a/drivers/base/power/domain.c +++ b/drivers/base/power/domain.c @@ -129,6 +129,7 @@ static const struct genpd_lock_ops genpd_spin_ops = { #define genpd_is_active_wakeup(genpd) (genpd->flags & GENPD_FLAG_ACTIVE_WAKEUP) #define genpd_is_cpu_domain(genpd) (genpd->flags & GENPD_FLAG_CPU_DOMAIN) #define genpd_is_rpm_always_on(genpd) (genpd->flags & GENPD_FLAG_RPM_ALWAYS_ON) +#define genpd_is_suspend_on(genpd) (genpd->flags & GENPD_FLAG_SUSPEND_ON) static inline bool irq_safe_dev_in_no_sleep_domain(struct device *dev, const struct generic_pm_domain *genpd) @@ -949,7 +950,7 @@ static void genpd_sync_power_off(struct generic_pm_domain *genpd, bool use_lock, { struct gpd_link *link; - if (!genpd_status_on(genpd) || genpd_is_always_on(genpd)) + if (!genpd_status_on(genpd) || genpd_is_always_on(genpd) || genpd_is_suspend_on(genpd)) return; if (genpd->suspended_count != genpd->device_count diff --git a/include/linux/pm_domain.h b/include/linux/pm_domain.h index ee11502a575b0..3002a2d68936a 100644 --- a/include/linux/pm_domain.h +++ b/include/linux/pm_domain.h @@ -55,6 +55,10 @@ * * GENPD_FLAG_RPM_ALWAYS_ON: Instructs genpd to always keep the PM domain * powered on except for system suspend. + * + * GENPD_FLAG_SUSPEND_ON: Instructs genpd to keep the PM domain powered + * on during suspend and runtime PM controlled + * otherwise. */ #define GENPD_FLAG_PM_CLK (1U << 0) #define GENPD_FLAG_IRQ_SAFE (1U << 1) @@ -62,6 +66,7 @@ #define GENPD_FLAG_ACTIVE_WAKEUP (1U << 3) #define GENPD_FLAG_CPU_DOMAIN (1U << 4) #define GENPD_FLAG_RPM_ALWAYS_ON (1U << 5) +#define GENPD_FLAG_SUSPEND_ON (1U << 6) enum gpd_status { GPD_STATE_ACTIVE = 0, /* PM domain is active */