From patchwork Wed Oct 16 19:37:17 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thara Gopinath X-Patchwork-Id: 11194039 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 5DC751390 for ; Wed, 16 Oct 2019 19:37:35 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 3E37B21928 for ; Wed, 16 Oct 2019 19:37:35 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="jtg46D18" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2394466AbfJPThe (ORCPT ); Wed, 16 Oct 2019 15:37:34 -0400 Received: from mail-qk1-f195.google.com ([209.85.222.195]:38275 "EHLO mail-qk1-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2394451AbfJPThe (ORCPT ); Wed, 16 Oct 2019 15:37:34 -0400 Received: by mail-qk1-f195.google.com with SMTP id p4so3368206qkf.5 for ; Wed, 16 Oct 2019 12:37:33 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=SEzzpxn6TNoCaJjNnbG2b9pO7Zr0jWolxxLkxLULV5c=; b=jtg46D18bjGRyC40A5rJir1izsa/p65sPjSA6mfWjUIbPAwgAbDKZuoyK3S88fFVaw kuXOvBRiVr3prI14Wzpr879D32cekWxy2DfL9VOQ2S1SIbB3nvPiazNqIlkKepocZ5DZ laBNkiMBhlGk+kgT37dsdeInOu+lArHA3YkDS712pXc2v6jeK71o8l1wuztqj+wqCoPV sZ8vQS0SqkAK3789qvJtMJMZOLtTFDvdKIED6p38HeakzS1elUEavpdgF1ZXo8k0oXoa afIKOcKef7hh8Skn3Qb5TDFs2mP8t+6bBhJf0iEclk9Rstsq7HuNJh9zdbn/QS/T/ieW VIjg== 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; bh=SEzzpxn6TNoCaJjNnbG2b9pO7Zr0jWolxxLkxLULV5c=; b=Up1dRL7KAyooRQlQfsjJ2H9cPYHk9LX6QrBqgbXPmN9lgdcYH64aRc9DylsMBEko57 UzX7O6GLpCTXfm/n80S8ZauCJjzCK9TOBUuo1kLmX7AXi6XjNUdNNB1Ced+phpNPVr3q kUibl2jIDIVIByiP5sVumaiqiQ/HcXT1URrfc99tz6BEois1a5gJ03qE6dOxIuMnPMAT z/ncgZpcCBQ2TEjK+Oyr8uwSOLXdtiENiDzfZgfrEJGjmn9JqDHp7fkD6gdSF3gE7ryv bUg9DZws3btwMbR8ceV1WEKb0Wr55bhVoMtoeNbEZIEqnzEILtJembFoV3a1NVpCS6u5 GVGw== X-Gm-Message-State: APjAAAVZ+lUQNvIEWF/2VPiOYX3SV8iZqdrR5lUeZU6/TLftZQ+UAdIw oMJHCBXPnJ0PAMP8uVZxfNjw5hSIFMMDnA== X-Google-Smtp-Source: APXvYqx6RScGxFupPIKtDHHoMIuDZWH3t814tbZCS+r0zxMef5n03LF0cipYleH/qNbjnBURIvcaoA== X-Received: by 2002:a37:f70f:: with SMTP id q15mr39409920qkj.428.1571254652961; Wed, 16 Oct 2019 12:37:32 -0700 (PDT) Received: from Thara-Work-Ubuntu.fios-router.home (pool-71-255-246-27.washdc.fios.verizon.net. [71.255.246.27]) by smtp.googlemail.com with ESMTPSA id 54sm16246030qts.75.2019.10.16.12.37.31 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Wed, 16 Oct 2019 12:37:32 -0700 (PDT) From: Thara Gopinath To: edubezval@gmail.com, rui.zhang@intel.com, ulf.hansson@linaro.org, daniel.lezcano@linaro.org, bjorn.andersson@linaro.org, agross@kernel.org Cc: amit.kucheria@verdurent.com, mark.rutland@arm.com, rjw@rjwysocki.net, linux-pm@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v3 3/7] thermal: core: Add late init hook to cooling device ops Date: Wed, 16 Oct 2019 15:37:17 -0400 Message-Id: <1571254641-13626-4-git-send-email-thara.gopinath@linaro.org> X-Mailer: git-send-email 2.1.4 In-Reply-To: <1571254641-13626-1-git-send-email-thara.gopinath@linaro.org> References: <1571254641-13626-1-git-send-email-thara.gopinath@linaro.org> Sender: linux-arm-msm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org Add a hook in thermal_cooling_device_ops to be called after the cooling device has been initialized and registered but before binding it to a thermal zone. In this patch series it is used to hook up a power domain to the device pointer of cooling device. It can be used for any other relevant late initializations of a cooling device as well. Signed-off-by: Thara Gopinath --- drivers/thermal/thermal_core.c | 13 +++++++++++++ include/linux/thermal.h | 1 + 2 files changed, 14 insertions(+) diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c index 886e8fa..c2ecb73 100644 --- a/drivers/thermal/thermal_core.c +++ b/drivers/thermal/thermal_core.c @@ -994,6 +994,19 @@ __thermal_cooling_device_register(struct device_node *np, list_add(&cdev->node, &thermal_cdev_list); mutex_unlock(&thermal_list_lock); + /* Call into cdev late initialization if defined */ + if (cdev->ops->late_init) { + result = cdev->ops->late_init(cdev); + if (result) { + ida_simple_remove(&thermal_cdev_ida, cdev->id); + put_device(&cdev->device); + mutex_lock(&thermal_list_lock); + list_del(&cdev->node); + mutex_unlock(&thermal_list_lock); + return ERR_PTR(result); + } + } + /* Update binding information for 'this' new cdev */ bind_cdev(cdev); diff --git a/include/linux/thermal.h b/include/linux/thermal.h index e45659c..e94b3de 100644 --- a/include/linux/thermal.h +++ b/include/linux/thermal.h @@ -125,6 +125,7 @@ struct thermal_cooling_device_ops { struct thermal_zone_device *, unsigned long, u32 *); int (*power2state)(struct thermal_cooling_device *, struct thermal_zone_device *, u32, unsigned long *); + int (*late_init)(struct thermal_cooling_device *); }; struct thermal_cooling_device {