From patchwork Tue May 18 23:43:07 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christian Marangi X-Patchwork-Id: 441547 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-15.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6ED4BC43461 for ; Tue, 18 May 2021 23:43:20 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4217861074 for ; Tue, 18 May 2021 23:43:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237146AbhERXog (ORCPT ); Tue, 18 May 2021 19:44:36 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39344 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230114AbhERXof (ORCPT ); Tue, 18 May 2021 19:44:35 -0400 Received: from mail-ed1-x530.google.com (mail-ed1-x530.google.com [IPv6:2a00:1450:4864:20::530]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 757CBC061573; Tue, 18 May 2021 16:43:15 -0700 (PDT) Received: by mail-ed1-x530.google.com with SMTP id di13so13209018edb.2; Tue, 18 May 2021 16:43:15 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=VjYQwQ9/5/A/9HOipl1Xc8ES3BnP3H1XNLdUqpXzYhQ=; b=Z/AjHducSqpAGLVll4DWyqU1Hi227yYS+V5kmV2OGSvlOgN6q21SCjM3jWWqONZ5F1 ipWptuA88u6fwyRu9zqxcm9sNQ1ysfRHG/LCIAmf1aNpkiMUOKfFLrhPbhpCY0DMMZOj bWCzW8m+u6Z/QuLb7HHa2vJkPvUPzn+Rd/ExBheI8Yb32cjiXzTx990AXjWMsaVcmmXG vbCipruJkhCHz4ZwMWGmvoMfsFPzgwbzb7RUl/Ap+HuXqk2UwdBfUFrR8nrIrfQk+y1K mj/W/8MpBDvtidNEw0jeV7KludCT3sSaKL75u1pBDSy5/9p6PqL86c7GO1r2lSTjl9xg noiA== 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:mime-version:content-transfer-encoding; bh=VjYQwQ9/5/A/9HOipl1Xc8ES3BnP3H1XNLdUqpXzYhQ=; b=l4FKW+h9qB3bbxyDjpM4xlmZ5wDXS/2nJc8EBoEel7bh72K77J1Zv89sRAMcOzhu5S x21JoEDTkixSolO5SKQIKr5Qjb6O0c+bAjxA9rg0u+baQqttVCbIZOkapeTSmwFCMTsI j+WlXpQmr2kTiz1J/LTMnKUG/9bzUwZRyAZpW/oQqju9uGJ5RF7npJGcXk6Ie55thQge jPsN/yyeExZcsajZVccse7ldLN6qEzPbVHB7ERjkd6tE9VSEmrngYRRHlpYqQ9UvRVDR yUz7mWJ+/zBOHD4TPsdN31mcECjowpFE/SzrV4SiJC7Pma6JGyQ1VrzQHk2AdHlZAE0S LOlQ== X-Gm-Message-State: AOAM530oz2KQLbIt7VOqzyLxi3BGpTAOLqjVT9c56FenpQBQ3YKOpYAG odum9RaqVxYvopqEdZkkzhoPRtClhuo1zg== X-Google-Smtp-Source: ABdhPJwPVflDMFCOx01/mAVK5h1ssxwhSJiWGQsqrk8qcW7ZtII2zSzFY+Vcbxyt3RxYLxipUchZpw== X-Received: by 2002:a05:6402:19a:: with SMTP id r26mr9772425edv.44.1621381394077; Tue, 18 May 2021 16:43:14 -0700 (PDT) Received: from Ansuel-xps.localdomain (93-35-189-2.ip56.fastwebnet.it. [93.35.189.2]) by smtp.googlemail.com with ESMTPSA id bm13sm11220567ejb.75.2021.05.18.16.43.12 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 18 May 2021 16:43:13 -0700 (PDT) From: Ansuel Smith To: Thara Gopinath Cc: Robert Marko , Ansuel Smith , Andy Gross , Bjorn Andersson , Amit Kucheria , Zhang Rui , Daniel Lezcano , linux-arm-msm@vger.kernel.org, linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 3/3] drivers: thermal: tsens: check if crit_int is supported in read_irq_state Date: Wed, 19 May 2021 01:43:07 +0200 Message-Id: <20210518234309.29014-2-ansuelsmth@gmail.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210518234309.29014-1-ansuelsmth@gmail.com> References: <20210518234309.29014-1-ansuelsmth@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org From: Robert Marko Check if crit_int is supported by the current tsens feat and read crit field only if needed or the kernel panic for reading unreadable memory. Signed-off-by: Robert Marko Signed-off-by: Ansuel Smith --- drivers/thermal/qcom/tsens.c | 24 +++++++++++++++--------- 1 file changed, 15 insertions(+), 9 deletions(-) diff --git a/drivers/thermal/qcom/tsens.c b/drivers/thermal/qcom/tsens.c index 38afde1a599f..27777a05f755 100644 --- a/drivers/thermal/qcom/tsens.c +++ b/drivers/thermal/qcom/tsens.c @@ -325,16 +325,22 @@ static int tsens_read_irq_state(struct tsens_priv *priv, u32 hw_id, ret = regmap_field_read(priv->rf[LOW_INT_MASK_0 + hw_id], &d->low_irq_mask); if (ret) return ret; - ret = regmap_field_read(priv->rf[CRIT_INT_CLEAR_0 + hw_id], - &d->crit_irq_clear); - if (ret) - return ret; - ret = regmap_field_read(priv->rf[CRIT_INT_MASK_0 + hw_id], - &d->crit_irq_mask); - if (ret) - return ret; + if (priv->feat->crit_int) { + ret = regmap_field_read(priv->rf[CRIT_INT_CLEAR_0 + hw_id], + &d->crit_irq_clear); + if (ret) + return ret; + ret = regmap_field_read(priv->rf[CRIT_INT_MASK_0 + hw_id], + &d->crit_irq_mask); + if (ret) + return ret; - d->crit_thresh = tsens_hw_to_mC(s, CRIT_THRESH_0 + hw_id); + d->crit_thresh = tsens_hw_to_mC(s, CRIT_THRESH_0 + hw_id); + } else { + d->crit_irq_clear = 0; + d->crit_irq_mask = 0; + d->crit_thresh = 0; + } } else { /* No mask register on older TSENS */ d->up_irq_mask = 0;