From patchwork Fri Dec 2 09:11:11 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Di Shen X-Patchwork-Id: 13062439 X-Patchwork-Delegate: daniel.lezcano@linaro.org 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 24B0DC4332F for ; Fri, 2 Dec 2022 09:12:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232815AbiLBJMj (ORCPT ); Fri, 2 Dec 2022 04:12:39 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38956 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232288AbiLBJMj (ORCPT ); Fri, 2 Dec 2022 04:12:39 -0500 Received: from SHSQR01.spreadtrum.com (mx1.unisoc.com [222.66.158.135]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B04CEC1F; Fri, 2 Dec 2022 01:12:36 -0800 (PST) Received: from SHSend.spreadtrum.com (bjmbx01.spreadtrum.com [10.0.64.7]) by SHSQR01.spreadtrum.com with ESMTPS id 2B29BagW034842 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-SHA384 bits=256 verify=NO); Fri, 2 Dec 2022 17:11:36 +0800 (CST) (envelope-from Di.Shen@unisoc.com) Received: from bj10906pcu1.spreadtrum.com (10.0.74.51) by BJMBX01.spreadtrum.com (10.0.64.7) with Microsoft SMTP Server (TLS) id 15.0.1497.23; Fri, 2 Dec 2022 17:11:33 +0800 From: Di Shen To: , , , CC: , , , Subject: [PATCH V2] thermal/of: Allow users to set governor for a thermal zone in DT Date: Fri, 2 Dec 2022 17:11:11 +0800 Message-ID: <20221202091111.1682-1-di.shen@unisoc.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <202212020239.CufwkKiR-lkp@intel.com> References: <202212020239.CufwkKiR-lkp@intel.com> MIME-Version: 1.0 X-Originating-IP: [10.0.74.51] X-ClientProxiedBy: SHCAS03.spreadtrum.com (10.0.1.207) To BJMBX01.spreadtrum.com (10.0.64.7) X-MAIL: SHSQR01.spreadtrum.com 2B29BagW034842 Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org The governor of all thermal zones can be initialized in thermal_zone_device_register_with_trips(), but it is always the def_governor, this means the governor of all thermal zones are the same. Allow users to set governor for a specific thermal zone in DT, in this way, users can use different policies for thermal management. Signed-off-by: Di Shen --- drivers/thermal/thermal_of.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/thermal/thermal_of.c b/drivers/thermal/thermal_of.c index d4b6335ace15..4a29ac3be2ac 100644 --- a/drivers/thermal/thermal_of.c +++ b/drivers/thermal/thermal_of.c @@ -355,6 +355,7 @@ static struct thermal_zone_params *thermal_of_parameters_init(struct device_node int coef[2]; int ncoef = ARRAY_SIZE(coef); int prop, ret; + const char *governor_name; tzp = kzalloc(sizeof(*tzp), GFP_KERNEL); if (!tzp) @@ -365,6 +366,11 @@ static struct thermal_zone_params *thermal_of_parameters_init(struct device_node if (!of_property_read_u32(np, "sustainable-power", &prop)) tzp->sustainable_power = prop; + if (!of_property_read_string(np, "policy", &governor_name)) { + strncpy(tzp->governor_name, governor_name, THERMAL_NAME_LENGTH - 1); + tzp->governor_name[THERMAL_NAME_LENGTH - 1] = '\0'; + } + /* * For now, the thermal framework supports only one sensor per * thermal zone. Thus, we are considering only the first two