From patchwork Fri Jul 22 20:00:07 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Daniel Lezcano X-Patchwork-Id: 12926835 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 CFCC6C43334 for ; Fri, 22 Jul 2022 20:01:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236686AbiGVUA7 (ORCPT ); Fri, 22 Jul 2022 16:00:59 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56592 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236644AbiGVUAx (ORCPT ); Fri, 22 Jul 2022 16:00:53 -0400 Received: from mail-wr1-x429.google.com (mail-wr1-x429.google.com [IPv6:2a00:1450:4864:20::429]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5DF03AF733 for ; Fri, 22 Jul 2022 13:00:46 -0700 (PDT) Received: by mail-wr1-x429.google.com with SMTP id h8so7883937wrw.1 for ; Fri, 22 Jul 2022 13:00:46 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linexp-org.20210112.gappssmtp.com; s=20210112; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=iVtxa+vuykpc9jPpe/gzYZEspPiDTyEIGx5jh5o8tcM=; b=4+janghD8Dw6whSA55KQShCIG1hZCMxlZM8n3+d/7DyuGeEXbFzq9kO106S8vbPv0+ Rgb0Chkf9UnhCrktg7tnuJ8YPcyuOuy5Wdf2OVrqtFfOAFiYEzWaJ4RJ59SdW2oUTHki VzGLtrgcdcwNNFjXPCH4f64jjS2RI5PtEf+JjwHeQ2Rd0QDaRUvNMjsen2h8QAp5f1Db 9POiG7MQRrFZWZwI8bL69nhoDPP9mDpsukBcfkO4doPLV77OCnBiRvx/IEmmWZ4ip+4/ fBskA+67+Po0owOmuknbOboqvxzSrYl2HGjn7iJebU1koBjkMfFKsAnPaqCbsfqP1oz0 XSNA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=iVtxa+vuykpc9jPpe/gzYZEspPiDTyEIGx5jh5o8tcM=; b=VZ8kFuP4G/apRMntDk8kwzwsNbpQ/k5ng7mI1XXOPtWJVIq+41vwiNFEtwl4bOacfk 9DU/Huubs5V8S/hsw8DUgBMHabviKxSBFiXZlTmkpeBXCpvHGhL5aeEJJNmT8lvPeqYJ WmW993Bw634yJvL/TWfkBJDjBnEqdWcp5KmJl2jkHH7Krq9okuDdzthzIiOAZxpNAMz4 YFJrUJxnFrECcZjJkyJ3c7ZMMcZnmVu17Cx4ujKzoZ+o58UNJbm/4+iY6ForksB2ilms NcIfWUiu0+1uvEdHizixSQ8aWh6+mKp6h/zUOQ/FXPMbxAvaiz2eWwl7Vt9D7bIERfNB aJyg== X-Gm-Message-State: AJIora9+zEUnYmIDKdlPyxc3QTTlw1I3F355F13aguGWbzfH95uY7vvx gFbCBp6UfQrQ3T4C6/UdGDObYQ== X-Google-Smtp-Source: AGRyM1vYAZglTmENhkJtrAMPgyidh7bkVjeuKlt0YW+4lqn+1k/roXGT0kDvWuZy7s2DD6CN9VB5zw== X-Received: by 2002:a5d:460e:0:b0:21e:6d12:d308 with SMTP id t14-20020a5d460e000000b0021e6d12d308mr795545wrq.419.1658520045826; Fri, 22 Jul 2022 13:00:45 -0700 (PDT) Received: from mai.box.freepro.com ([2a05:6e02:1041:c10:957f:d36d:87f9:5c17]) by smtp.gmail.com with ESMTPSA id k23-20020a05600c1c9700b003a31b00c216sm6429008wms.0.2022.07.22.13.00.44 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 22 Jul 2022 13:00:45 -0700 (PDT) From: Daniel Lezcano To: daniel.lezcano@linaro.org, rafael@kernel.org Cc: rui.zhang@intel.com, linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, khilman@baylibre.com, abailon@baylibre.com, lukasz.luba@arm.com, Amit Kucheria Subject: [PATCH v6 10/10] thermal/of: Initialize trip points separately Date: Fri, 22 Jul 2022 22:00:07 +0200 Message-Id: <20220722200007.1839356-11-daniel.lezcano@linexp.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220722200007.1839356-1-daniel.lezcano@linexp.org> References: <20220722200007.1839356-1-daniel.lezcano@linexp.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org Self contain the trip initialization from the device tree in a single function for the sake of making the code flow more clear. Cc: Alexandre Bailon Cc: Kevin Hilman Signed-off-by: Daniel Lezcano --- drivers/thermal/thermal_of.c | 86 ++++++++++++++++++++++++------------ 1 file changed, 57 insertions(+), 29 deletions(-) diff --git a/drivers/thermal/thermal_of.c b/drivers/thermal/thermal_of.c index b59eec4af0eb..0693edc00f60 100644 --- a/drivers/thermal/thermal_of.c +++ b/drivers/thermal/thermal_of.c @@ -693,7 +693,8 @@ static int of_find_trip_id(struct device_node *np, struct device_node *trip) * * Return: 0 on success, proper error code otherwise */ -static int thermal_of_populate_bind_params(struct device_node *np, +static int thermal_of_populate_bind_params(struct device_node *tz_np, + struct device_node *np, struct __thermal_bind_params *__tbp) { struct of_phandle_args cooling_spec; @@ -715,7 +716,7 @@ static int thermal_of_populate_bind_params(struct device_node *np, return -ENODEV; } - trip_id = of_find_trip_id(np, trip); + trip_id = of_find_trip_id(tz_np, trip); if (trip_id < 0) { ret = trip_id; goto end; @@ -849,6 +850,53 @@ static int thermal_of_populate_trip(struct device_node *np, return 0; } +static struct thermal_trip *thermal_of_trips_init(struct device_node *np, int *ntrips) +{ + struct thermal_trip *tt; + struct device_node *trips, *trip; + int ret, count; + + trips = of_get_child_by_name(np, "trips"); + if (!trips) { + pr_err("Failed to find 'trips' node\n"); + return ERR_PTR(-EINVAL); + } + + count = of_get_child_count(trips); + if (!count) { + pr_err("No trip point defined\n"); + ret = -EINVAL; + goto out_of_node_put; + } + + tt = kzalloc(sizeof(*tt) * count, GFP_KERNEL); + if (!tt) { + ret = -ENOMEM; + goto out_of_node_put; + } + + *ntrips = count; + + count = 0; + for_each_child_of_node(trips, trip) { + ret = thermal_of_populate_trip(trip, &tt[count++]); + if (ret) + goto out_kfree; + } + + of_node_put(trips); + + return tt; + +out_kfree: + kfree(tt); + *ntrips = 0; +out_of_node_put: + of_node_put(trips); + + return ERR_PTR(ret); +} + /** * thermal_of_build_thermal_zone - parse and fill one thermal zone data * @np: DT node containing a thermal zone node @@ -867,7 +915,6 @@ static struct __thermal_zone __init *thermal_of_build_thermal_zone(struct device_node *np) { struct device_node *child = NULL, *gchild; - struct device_node *trips; struct __thermal_zone *tz; int ret, i; u32 prop, coef[2]; @@ -909,28 +956,10 @@ __init *thermal_of_build_thermal_zone(struct device_node *np) tz->offset = 0; } - /* trips */ - trips = of_get_child_by_name(np, "trips"); - - /* No trips provided */ - if (!trips) + tz->trips = thermal_of_trips_init(np, &tz->ntrips); + if (IS_ERR(tz->trips)) { + ret = PTR_ERR(tz->trips); goto finish; - - tz->ntrips = of_get_child_count(trips); - if (tz->ntrips == 0) /* must have at least one child */ - goto finish; - - tz->trips = kcalloc(tz->ntrips, sizeof(*tz->trips), GFP_KERNEL); - if (!tz->trips) { - ret = -ENOMEM; - goto free_tz; - } - - i = 0; - for_each_child_of_node(trips, gchild) { - ret = thermal_of_populate_trip(gchild, &tz->trips[i++]); - if (ret) - goto free_trips; } /* cooling-maps */ @@ -952,13 +981,14 @@ __init *thermal_of_build_thermal_zone(struct device_node *np) i = 0; for_each_child_of_node(child, gchild) { - ret = thermal_of_populate_bind_params(gchild, &tz->tbps[i++]); - if (ret) + ret = thermal_of_populate_bind_params(np, gchild, &tz->tbps[i++]); + if (ret) { + of_node_put(gchild); goto free_tbps; + } } finish: - of_node_put(trips); of_node_put(child); return tz; @@ -977,8 +1007,6 @@ __init *thermal_of_build_thermal_zone(struct device_node *np) kfree(tz->tbps); free_trips: kfree(tz->trips); - of_node_put(trips); - of_node_put(gchild); free_tz: kfree(tz); of_node_put(child);