From patchwork Wed Oct 16 07:34:03 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Amit Kucheria X-Patchwork-Id: 11192553 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 7E54817E6 for ; Wed, 16 Oct 2019 07:34:48 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 5FEFD21848 for ; Wed, 16 Oct 2019 07:34:48 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="m2blUIER" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732846AbfJPHej (ORCPT ); Wed, 16 Oct 2019 03:34:39 -0400 Received: from mail-pg1-f194.google.com ([209.85.215.194]:45993 "EHLO mail-pg1-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732816AbfJPHej (ORCPT ); Wed, 16 Oct 2019 03:34:39 -0400 Received: by mail-pg1-f194.google.com with SMTP id r1so12568876pgj.12 for ; Wed, 16 Oct 2019 00:34:38 -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 :in-reply-to:references; bh=X8pbmbvndxxAH4F0z0Ew7Vd1EABZ+OrJe/0vppnAxes=; b=m2blUIERT53SNTEyx5WOy2++HB63Jg2q6qsys2oeOGLlXKv8Gq+exfQEtDm14SPsVy JLRh6aKmCGJfxndpb4LMK3V7snH4kMI5ksP1H8pzeuzTqd3DN0MoyRLtdgzQBn8wWAxY B7PFn1D2IbPS/zgrdzHuGfeoPQm0QkLvGohG4gqBs6l+s2tdnDUKRvywOLk1uyNHR9Yt Gpy+kDsIJtaQ/ubsggnQ5yzSKH0i+88450twFBnyfGEYgGUZ2pO9d+qAcl8AE2Mxc5sg WL9tdFWK2NuX8kB5asflDsKPtdvxN5G2Pz+UDMhK9XLiQhQiM7UzjLZtVgIpbokCMOj7 HoHQ== 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:in-reply-to:references; bh=X8pbmbvndxxAH4F0z0Ew7Vd1EABZ+OrJe/0vppnAxes=; b=J0S9N3nTvxKhfkGz9HP4LMNhv+FSyCNPMSAIn/+Yx0lKbEc8ic6cE0MxIVjShKggy4 +rOYNPOXiuhx2Xw+6VqgViDju9Loj7898UY9CZaoeHFR4RJkXavyFZw5tgqJ0A/uQ569 n4JKNW7m3qRx9nhMlPYIWeuushzjqdsqPFWRcl+StnAHEUYWJoWfDEQng7dlDKUrULK4 G5IKXDOhB28elz6qCM+tjovOYNMLTAQ5h15rzk4Fys8/Ik4l96LnjCoFTVg1brpjSUHh sN3ENbo5TS1VTUD/qer8CNE38ezy3nziMPoeAz530xqLQn1w0Ow6aOWEdSUDJNstzRcP jJUA== X-Gm-Message-State: APjAAAX/s9m2h2MzVwaNNv+1JuT3aopPXqGmgCUJBaSnt7G0SLdZ6+2t 7Aa+8HVilnyhV8974+Eln0+XXg== X-Google-Smtp-Source: APXvYqweUuIjibgAjmbmdlFc3afBcb2Ke7WmM01P+ZxSDfwXyBLcFRtXuhcQPpz2/zESTBRLfW4RDA== X-Received: by 2002:a17:90a:b304:: with SMTP id d4mr3327236pjr.27.1571211277615; Wed, 16 Oct 2019 00:34:37 -0700 (PDT) Received: from localhost ([49.248.175.127]) by smtp.gmail.com with ESMTPSA id v19sm23786315pff.46.2019.10.16.00.34.36 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Wed, 16 Oct 2019 00:34:37 -0700 (PDT) From: Amit Kucheria To: linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, bjorn.andersson@linaro.org, edubezval@gmail.com, agross@kernel.org, masneyb@onstation.org, swboyd@chromium.org, Amit Kucheria , Daniel Lezcano , Mark Rutland , Rob Herring , Zhang Rui Cc: linux-pm@vger.kernel.org Subject: [PATCH 04/15] drivers: thermal: tsens: Add debugfs support Date: Wed, 16 Oct 2019 13:04:03 +0530 Message-Id: <16e39c1bbfc18b5cf6274620cd72cc63205f53a5.1571210269.git.amit.kucheria@linaro.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: References: In-Reply-To: References: Sender: linux-pm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org Dump some basic version info and sensor details into debugfs. Example from qcs404 below: --(/sys/kernel/debug) $ ls tsens/ 4a9000.thermal-sensor version --(/sys/kernel/debug) $ cat tsens/version 1.4.0 --(/sys/kernel/debug) $ cat tsens/4a9000.thermal-sensor/sensors max: 11 num: 10 id slope offset ------------------------ 0 3200 404000 1 3200 404000 2 3200 404000 3 3200 404000 4 3200 404000 5 3200 404000 6 3200 404000 7 3200 404000 8 3200 404000 9 3200 404000 Signed-off-by: Amit Kucheria Reviewed-by: Stephen Boyd --- drivers/thermal/qcom/tsens-common.c | 83 +++++++++++++++++++++++++++++ drivers/thermal/qcom/tsens.c | 2 + drivers/thermal/qcom/tsens.h | 6 +++ 3 files changed, 91 insertions(+) diff --git a/drivers/thermal/qcom/tsens-common.c b/drivers/thermal/qcom/tsens-common.c index 7437bfe196e5..ea2c46cc6a66 100644 --- a/drivers/thermal/qcom/tsens-common.c +++ b/drivers/thermal/qcom/tsens-common.c @@ -3,6 +3,7 @@ * Copyright (c) 2015, The Linux Foundation. All rights reserved. */ +#include #include #include #include @@ -139,6 +140,77 @@ int get_temp_common(struct tsens_sensor *s, int *temp) return 0; } +#ifdef CONFIG_DEBUG_FS +static int dbg_sensors_show(struct seq_file *s, void *data) +{ + struct platform_device *pdev = s->private; + struct tsens_priv *priv = platform_get_drvdata(pdev); + int i; + + seq_printf(s, "max: %2d\nnum: %2d\n\n", + priv->feat->max_sensors, priv->num_sensors); + + seq_puts(s, " id slope offset\n--------------------------\n"); + for (i = 0; i < priv->num_sensors; i++) { + seq_printf(s, "%8d %8d %8d\n", priv->sensor[i].hw_id, + priv->sensor[i].slope, priv->sensor[i].offset); + } + + return 0; +} + +static int dbg_version_show(struct seq_file *s, void *data) +{ + struct platform_device *pdev = s->private; + struct tsens_priv *priv = platform_get_drvdata(pdev); + u32 maj_ver, min_ver, step_ver; + int ret; + + if (tsens_ver(priv) > VER_0_1) { + ret = regmap_field_read(priv->rf[VER_MAJOR], &maj_ver); + if (ret) + return ret; + ret = regmap_field_read(priv->rf[VER_MINOR], &min_ver); + if (ret) + return ret; + ret = regmap_field_read(priv->rf[VER_STEP], &step_ver); + if (ret) + return ret; + seq_printf(s, "%d.%d.%d\n", maj_ver, min_ver, step_ver); + } else { + seq_puts(s, "0.1.0\n"); + } + + return 0; +} + +DEFINE_SHOW_ATTRIBUTE(dbg_version); +DEFINE_SHOW_ATTRIBUTE(dbg_sensors); + +static void tsens_debug_init(struct platform_device *pdev) +{ + struct tsens_priv *priv = platform_get_drvdata(pdev); + struct dentry *root, *file; + + root = debugfs_lookup("tsens", NULL); + if (!root) + priv->debug_root = debugfs_create_dir("tsens", NULL); + else + priv->debug_root = root; + + file = debugfs_lookup("version", priv->debug_root); + if (!file) + debugfs_create_file("version", 0444, priv->debug_root, + pdev, &dbg_version_fops); + + /* A directory for each instance of the TSENS IP */ + priv->debug = debugfs_create_dir(dev_name(&pdev->dev), priv->debug_root); + debugfs_create_file("sensors", 0444, priv->debug, pdev, &dbg_sensors_fops); +} +#else +static inline void tsens_debug_init(struct platform_device *pdev) {} +#endif + static const struct regmap_config tsens_config = { .name = "tm", .reg_bits = 32, @@ -199,6 +271,15 @@ int __init init_common(struct tsens_priv *priv) goto err_put_device; } + if (tsens_ver(priv) > VER_0_1) { + for (i = VER_MAJOR; i <= VER_STEP; i++) { + priv->rf[i] = devm_regmap_field_alloc(dev, priv->srot_map, + priv->fields[i]); + if (IS_ERR(priv->rf[i])) + return PTR_ERR(priv->rf[i]); + } + } + priv->rf[TSENS_EN] = devm_regmap_field_alloc(dev, priv->srot_map, priv->fields[TSENS_EN]); if (IS_ERR(priv->rf[TSENS_EN])) { @@ -238,6 +319,8 @@ int __init init_common(struct tsens_priv *priv) } } + tsens_debug_init(op); + return 0; err_put_device: diff --git a/drivers/thermal/qcom/tsens.c b/drivers/thermal/qcom/tsens.c index 06c6bbd69a1a..772aa76b50e1 100644 --- a/drivers/thermal/qcom/tsens.c +++ b/drivers/thermal/qcom/tsens.c @@ -3,6 +3,7 @@ * Copyright (c) 2015, The Linux Foundation. All rights reserved. */ +#include #include #include #include @@ -176,6 +177,7 @@ static int tsens_remove(struct platform_device *pdev) { struct tsens_priv *priv = platform_get_drvdata(pdev); + debugfs_remove_recursive(priv->debug_root); if (priv->ops->disable) priv->ops->disable(priv); diff --git a/drivers/thermal/qcom/tsens.h b/drivers/thermal/qcom/tsens.h index 84e5447c5686..00899c17e848 100644 --- a/drivers/thermal/qcom/tsens.h +++ b/drivers/thermal/qcom/tsens.h @@ -293,6 +293,8 @@ struct tsens_context { * @feat: features of the IP * @fields: bitfield locations * @ops: pointer to list of callbacks supported by this device + * @debug_root: pointer to debugfs dentry for all tsens + * @debug: pointer to debugfs dentry for tsens controller * @sensor: list of sensors attached to this device */ struct tsens_priv { @@ -306,6 +308,10 @@ struct tsens_priv { const struct tsens_features *feat; const struct reg_field *fields; const struct tsens_ops *ops; + + struct dentry *debug_root; + struct dentry *debug; + struct tsens_sensor sensor[0]; };