From patchwork Sun Feb 19 14:36:55 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Daniel Lezcano X-Patchwork-Id: 655291 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 63A93C742A7 for ; Sun, 19 Feb 2023 14:39:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230250AbjBSOjM (ORCPT ); Sun, 19 Feb 2023 09:39:12 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38422 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230263AbjBSOij (ORCPT ); Sun, 19 Feb 2023 09:38:39 -0500 Received: from mail-wr1-x433.google.com (mail-wr1-x433.google.com [IPv6:2a00:1450:4864:20::433]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1233A44BD for ; Sun, 19 Feb 2023 06:38:18 -0800 (PST) Received: by mail-wr1-x433.google.com with SMTP id e2so659405wri.12 for ; Sun, 19 Feb 2023 06:38:17 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=hT0OFrc5BzA/EvvKaTBdDeJt/aCTGhUdeg6ktzHv2us=; b=sfwr9FAw99JPs2jgsRVuLndpE8yao9Kl+E/z7U0mtt0pP2wD2IO88tvDM316wqGWhU bOtdbmo6FuZElTFCkVycRnwUmdf4ah20jq0eL1sf/3WBmvAFbi2/ShUdbPUPupKNwlH7 DtQV0DPhDXMxxhggpMeDdWPhTaWIjd7+vtd/a5ko8mGoFoZ1GDgtQSozSm3RpQyPFhMD DuUmE3eZX4nzx1bu3urwLB8LPnbclLMZNDMlpdEJLtabwYjR2FNOfQGWKOlK4oF5mHWd U46QiQUoGN1d9JMBk+FmgjQY9n9uqv84+h9mvy6RR7cjaYif91wVlSrCddz1YUdlDHX8 zVgw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=hT0OFrc5BzA/EvvKaTBdDeJt/aCTGhUdeg6ktzHv2us=; b=Eyb74jAS1Yrylj/Q4uCSoRe00pmvm3lqAi2M/uxOaEl/iV8v2/qp/jBWy4DLRAzJ+B KHV4NalaALReUkvx/AXMa311MTAAMStdiG4fOMWW6axBZsvCG+erRZ/TQzOwgN+Nretq ALzhz751J+HnkvUvoQ/3L8DtD2vEw9gE1aOrX3iheeGjIKCRBBEl2ZQzzlXPTz1cAgge YCPJuRfq+sr86J+CwX8HSYIESnziFqsP8to6pS0isKX4V3gRNn/LLiZ9A3lWSC9dUZuM HUkb6clzcUA8TsT3OztcGEt5jHD2f0//JgidXI5pTct159sQzRuDPyXdUY9tWyK3HgUB 9j3g== X-Gm-Message-State: AO0yUKXg6cDwL/6PR2NajXW2/V//fTDY5oHDZAmKM4jCM5ZU/BNnAYbq 1Qz+9auGkVV8QrhGDmfp6nSGWw== X-Google-Smtp-Source: AK7set9g+Xv8475Uge2nzGCrlGdlaMCAyOgNN15o6NiNULAV3ygGhrWV1qTQ1r30QtA0D7O9N+C6iQ== X-Received: by 2002:a05:6000:1789:b0:2c6:825d:ed13 with SMTP id e9-20020a056000178900b002c6825ded13mr368030wrg.25.1676817496530; Sun, 19 Feb 2023 06:38:16 -0800 (PST) Received: from mai.box.freepro.com ([2a05:6e02:1041:c10:6f43:b92:7670:463]) by smtp.gmail.com with ESMTPSA id a18-20020adfe5d2000000b002be505ab59asm86176wrn.97.2023.02.19.06.38.15 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 19 Feb 2023 06:38:16 -0800 (PST) From: Daniel Lezcano To: rafael@kernel.org, daniel.lezcano@linaro.org Cc: linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, Peter Kaestle , Hans de Goede , Mark Gross , platform-driver-x86@vger.kernel.org (open list:ACER ASPIRE ONE TEMPERATURE AND FAN DRIVER) Subject: [PATCH v1 15/17] thermal/drivers/acerhdf: Make interval setting only at module load time Date: Sun, 19 Feb 2023 15:36:55 +0100 Message-Id: <20230219143657.241542-16-daniel.lezcano@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230219143657.241542-1-daniel.lezcano@linaro.org> References: <20230219143657.241542-1-daniel.lezcano@linaro.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org The thermal zone device structure is in the process of being private to the thermal framework core code. This driver is directly accessing and changing the monitoring polling rate. After discussing with the maintainers of this driver, having the polling interval at module loading time is enough for their purpose. Change the code to take into account the interval when the module is loaded but restrict the permissions so the value can not be changed afterwards. Signed-off-by: Daniel Lezcano Acked-by: Peter Kaestle --- drivers/platform/x86/acerhdf.c | 12 +++--------- 1 file changed, 3 insertions(+), 9 deletions(-) diff --git a/drivers/platform/x86/acerhdf.c b/drivers/platform/x86/acerhdf.c index 1956469c3457..61f1c3090867 100644 --- a/drivers/platform/x86/acerhdf.c +++ b/drivers/platform/x86/acerhdf.c @@ -79,7 +79,6 @@ static unsigned int list_supported; static unsigned int fanstate = ACERHDF_FAN_AUTO; static char force_bios[16]; static char force_product[16]; -static unsigned int prev_interval; static struct thermal_zone_device *thz_dev; static struct thermal_cooling_device *cl_dev; static struct platform_device *acerhdf_dev; @@ -346,20 +345,15 @@ static void acerhdf_check_param(struct thermal_zone_device *thermal) trips[0].temperature = fanon; trips[0].hysteresis = fanon - fanoff; - if (kernelmode && prev_interval != interval) { + if (kernelmode) { if (interval > ACERHDF_MAX_INTERVAL) { pr_err("interval too high, set to %d\n", ACERHDF_MAX_INTERVAL); interval = ACERHDF_MAX_INTERVAL; } + if (verbose) pr_notice("interval changed to: %d\n", interval); - - if (thermal) - thermal->polling_delay_jiffies = - round_jiffies(msecs_to_jiffies(interval * 1000)); - - prev_interval = interval; } } @@ -807,5 +801,5 @@ static const struct kernel_param_ops interval_ops = { .get = param_get_uint, }; -module_param_cb(interval, &interval_ops, &interval, 0600); +module_param_cb(interval, &interval_ops, &interval, 0000); MODULE_PARM_DESC(interval, "Polling interval of temperature check");