From patchwork Thu Feb 10 16:47:47 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Massimiliano Minella X-Patchwork-Id: 12742178 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 DF6D1C433EF for ; Thu, 10 Feb 2022 16:48:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233513AbiBJQs3 (ORCPT ); Thu, 10 Feb 2022 11:48:29 -0500 Received: from mxb-00190b01.gslb.pphosted.com ([23.128.96.19]:60952 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S244788AbiBJQs1 (ORCPT ); Thu, 10 Feb 2022 11:48:27 -0500 Received: from mail-wr1-x42b.google.com (mail-wr1-x42b.google.com [IPv6:2a00:1450:4864:20::42b]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6AE40122 for ; Thu, 10 Feb 2022 08:48:28 -0800 (PST) Received: by mail-wr1-x42b.google.com with SMTP id q7so10567334wrc.13 for ; Thu, 10 Feb 2022 08:48:28 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=pLS576zRiyX8cEFCSbEsgtddD+sDLikqn6zU/1oJf8w=; b=F+zihJjTwanF71H/D7ekBj3wU+Z2b52PbghTEMCSmcOrTiH4PgBQHiDD+hXz68ypHP L7Qab60Rg495sc5am43DY+CBcqGfjj0CdVzZTiFbvxvhVKpjLmS8INCDGOTjthlD/1qw u3sGYXfa8JajcntQa4ZCQAQ0i6YUqAHENq5WZ4v+e3ELGKtJPOvdFCha0x5l5V/5BD0w UmInuD8BBguT1bWO2GLwYUjbvnm/X7wgxT3OmC9eBsXrHbqJe5Q7qRUO7Ze4PC9lwkwa Pjp+3IWFRNqf0YPk8FBPwbC+24DYbudQQFgeqqeJzAZKvZIl161TOjly//C/jy7F2eU1 Khow== 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:mime-version :content-transfer-encoding; bh=pLS576zRiyX8cEFCSbEsgtddD+sDLikqn6zU/1oJf8w=; b=tN1ZAIkyM8szB2HK8/nH6rrpoRrSIJo87ZJt/U2nmlF8Z/LVeIzcNe5l45oflaJHLT USaB5nJb63ox0n1CVRIDX0Ylh1+0QP9xM/crd3pnQQ6VlbrxjGnRSyUBmp4+nPzRr7dM qJ0N9UpOeE01O5ZVIN1eP/o2FGwtRaC+u1J+4F6qyE962B6d4aWEBJTczqSEKwqXMqdg b37YtVAwJwJIYntTpVWOXD54eGH3t5PWbvBXOLS/NCtDypE9DgaKTi/2+qPIof73mWG3 solcrFdE4PbjT2Pf0p90lYkbKIF1idYaa3r1flW/cbfRR7CIdz3iddKy+WBvpPyATFbp Km/A== X-Gm-Message-State: AOAM5309IxUS/94PbBHpEPTJ1vhcjM/InzIPo2CWy2EFMqj0dQZ+LXDE pKjUdhggvvgAs3Tol0kpjNcbRxuQJSwJ1w== X-Google-Smtp-Source: ABdhPJyFIO3FkvNhELbMWyISu/O1KiJzBnlOUFk+mthkcVHN3yHFF62iPajbwsCkPx8ilc0eXtRWCg== X-Received: by 2002:adf:dd41:: with SMTP id u1mr7343463wrm.253.1644511706802; Thu, 10 Feb 2022 08:48:26 -0800 (PST) Received: from localhost.localdomain ([37.169.15.245]) by smtp.gmail.com with ESMTPSA id p3sm2047003wmq.40.2022.02.10.08.48.25 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 10 Feb 2022 08:48:26 -0800 (PST) From: Massimiliano Minella To: "Rafael J. Wysocki" Cc: Keerthy , Massimiliano Minella , Daniel Lezcano , Amit Kucheria , Zhang Rui , linux-pm@vger.kernel.org Subject: [PATCH] thermal: k3: Add hwmon support Date: Thu, 10 Feb 2022 17:47:47 +0100 Message-Id: <20220210164756.3489848-1-massimiliano.minella@gmail.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org Expose the thermal sensors on K3 AM654 as hwmon devices, so that temperatures could be read using lm-sensors. Use devm_add_action_or_reset() to unregister the hwmon interface automatically. Signed-off-by: Massimiliano Minella --- drivers/thermal/k3_bandgap.c | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) base-commit: e5b54867f47f765fcb439e09ed763b5de617af3e diff --git a/drivers/thermal/k3_bandgap.c b/drivers/thermal/k3_bandgap.c index 35f41e8a0b75..94678085dd5c 100644 --- a/drivers/thermal/k3_bandgap.c +++ b/drivers/thermal/k3_bandgap.c @@ -16,6 +16,8 @@ #include #include +#include "thermal_hwmon.h" + #define K3_VTM_DEVINFO_PWR0_OFFSET 0x4 #define K3_VTM_DEVINFO_PWR0_TEMPSENS_CT_MASK 0xf0 #define K3_VTM_TMPSENS0_CTRL_OFFSET 0x80 @@ -149,6 +151,13 @@ static int k3_thermal_get_temp(void *devdata, int *temp) return ret; } +static void k3_hwmon_action(void *data) +{ + struct thermal_zone_device *zone = data; + + thermal_remove_hwmon_sysfs(zone); +} + static const struct thermal_zone_of_device_ops k3_of_thermal_ops = { .get_temp = k3_thermal_get_temp, }; @@ -219,6 +228,19 @@ static int k3_bandgap_probe(struct platform_device *pdev) ret = PTR_ERR(data[id].tzd); goto err_alloc; } + + data[id].tzd->tzp->no_hwmon = false; + ret = thermal_add_hwmon_sysfs(data[id].tzd); + if (ret) { + dev_err(dev, "thermal failed to add hwmon sysfs\n"); + goto err_alloc; + } + + ret = devm_add_action_or_reset(dev, + k3_hwmon_action, + data[id].tzd); + if (ret) + goto err_alloc; } platform_set_drvdata(pdev, bgp);