From patchwork Fri Aug 20 09:52:06 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Ben.Tseng" X-Patchwork-Id: 12448737 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=-17.4 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,UNPARSEABLE_RELAY, URIBL_BLOCKED,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 E019AC4338F for ; Fri, 20 Aug 2021 09:53:01 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 9CEE4610CB for ; Fri, 20 Aug 2021 09:53:01 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 9CEE4610CB Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=mediatek.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-ID:Date:Subject:CC :To:From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=2dFGQ0XFwqK4w4651gx/TUOrhNQcvkQEqpNiZkNiWhs=; b=u+SdRiO1qK+dqc AUXIk30DyHyiJR3+1sgAD3HXwuxMafYxYjKJWEGb9bC1XJsyZpqLjO13sENNcc2Cg/WdbkQbJ6/Cn ETa8QMK1bUqsZoggB9NEgU/p+2IMu9I/Opqp/rpZGnwIuUXUkMA32dIxM/e3wWW37G2qRn9+qjjGe r51aDL9rq1lPAPv0FmJWzUM+eNGxHlMLRF99kGKMycKJM2OJ2nIK1p+Toi/S16zt/iopTxbUbh+ui cK99BDoxFgsoJu6oUd/KIKR5t89TPBl1NVGoUJ3Igq86yH5rx7z4ObMd702qWrO/msdRrVUNYF+Rv YKA9M3jXNTpG/HQiZ0cQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1mH1Ch-00AZ3v-NE; Fri, 20 Aug 2021 09:52:47 +0000 Received: from mailgw02.mediatek.com ([216.200.240.185]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1mH1CI-00AYxu-T6; Fri, 20 Aug 2021 09:52:28 +0000 X-UUID: 737360920b534f8b8c27aab8fd45dcb9-20210820 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Transfer-Encoding:Content-Type:MIME-Version:Message-ID:Date:Subject:CC:To:From; bh=GF22g9hL4OX9bosBYidtQxTnGL2rjf+G/t7cNOIZFDo=; b=lG7RVtbwshCh9RvEYPP2p7VPVRioHR/ZMkv0yxj5dqTDCZ7svGKsnhbvSt4BCyD4vFN4wkWrtbipFi2DRfgW52xbKp1xl+/QKOdd3Jz12qGUrMEIYVay5r6MdC1rbfOaVEsSnEfHdcYH3NMCBUs38r58T9Go6lP3kwYs1DhETvE=; X-UUID: 737360920b534f8b8c27aab8fd45dcb9-20210820 Received: from mtkcas67.mediatek.inc [(172.29.193.45)] by mailgw02.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLSv1.2 ECDHE-RSA-AES256-SHA384 256/256) with ESMTP id 1724757827; Fri, 20 Aug 2021 02:52:17 -0700 Received: from mtkmbs07n1.mediatek.inc (172.21.101.16) by MTKMBS62N1.mediatek.inc (172.29.193.41) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Fri, 20 Aug 2021 02:52:15 -0700 Received: from mtkcas10.mediatek.inc (172.21.101.39) by mtkmbs07n1.mediatek.inc (172.21.101.16) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Fri, 20 Aug 2021 17:52:13 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkcas10.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Fri, 20 Aug 2021 17:52:12 +0800 From: Ben Tseng To: Fan Chen , Zhang Rui , "Daniel Lezcano" , , CC: Eduardo Valentin , Rob Herring , Mark Rutland , Matthias Brugger , , , , , , , Michael Kao , Ben Tseng Subject: [PATCH v9] thermal: mediatek: add another get_temp ops for thermal sensors Date: Fri, 20 Aug 2021 17:52:06 +0800 Message-ID: <20210820095206.30981-1-ben.tseng@mediatek.com> X-Mailer: git-send-email 2.18.0 MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210820_025224_414331_07260924 X-CRM114-Status: GOOD ( 29.34 ) X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org From: Michael Kao Provide thermal zone to read thermal sensor in the SoC. We can read all the thermal sensors value in the SoC by the node /sys/class/thermal/ In mtk_thermal_bank_temperature, return -EAGAIN instead of -EACCESS on the first read of sensor that often are bogus values. This can avoid following warning on boot: thermal thermal_zone6: failed to read out thermal zone (-13) Signed-off-by: Michael Kao Signed-off-by: Hsin-Yi Wang Signed-off-by: Ben Tseng --- This patchset supports for MT8183 chip to mtk_thermal.c. Add thermal zone of all the thermal sensor in SoC for another get temperatrue. They don't need to thermal throttle. And we bind coolers for thermal zone nodes of cpu_thermal. Changes in V9: - Rebase to kernel-v5.14-rc1 - Bind raw_to_mcelsius_v1 or raw_to_mcelsius_v2 to compatible data of struct mtk_thermal_data - Remove duplicate struct 'mtk_thermal_bank' - Remove unnecessary if condition check - Return error if any thermal zone fail to register Changes in V8: - Rebase to kernel-v5.13-rc1 - Resend Changes in v7: - Fix build error in v6. Changes in v6: - Rebase to kernel-5.11-rc1. - [1/3] - add interrupts property. - [2/3] - add the Tested-by in the commit message. - [3/3] - use the mt->conf->msr[id] instead of conf->msr[id] in the _get_sensor_temp and mtk_thermal_bank_temperature. - remove the redundant space in _get_sensor_temp and mtk_read_sensor_temp. - change kmalloc to dev_kmalloc in mtk_thermal_probe. Changes in v5: - Rebase to kernel-5.9-rc1. - Revise the title of cover letter. - Drop "[v4,7/7] thermal: mediatek: use spinlock to protect PTPCORESEL" - [2/2] - Add the judgement to the version of raw_to_mcelsius. Changes in v4: - Rebase to kernel-5.6-rc1. - [1/7] - Squash thermal zone settings in the dtsi from [v3,5/8] arm64: dts: mt8183: Increase polling frequency for CPU thermal zone. - Remove the property of interrupts and mediatek,hw-reset-temp. - [2/7] - Correct commit message. - [4/7] - Change the target temperature to the 80C and change the commit message. - [6/7] - Adjust newline alignment. - Fix the judgement on the return value of registering thermal zone. Changes in v3: - Rebase to kernel-5.5-rc1. - [1/8] - Update sustainable power of cpu, tzts1~5 and tztsABB. - [7/8] - Bypass the failure that non cpu_thermal sensor is not find in thermal-zones in dts, which is normal for mt8173, so prompt a warning here instead of failing. Return -EAGAIN instead of -EACCESS on the first read of sensor that often are bogus values. This can avoid following warning on boot: thermal thermal_zone6: failed to read out thermal zone (-13) Changes in v2: - [1/8] - Add the sustainable-power,trips,cooling-maps to the tzts1~tztsABB. - [4/8] - Add the min opp of cpu throttle. Matthias Kaehlcke (1): arm64: dts: mt8183: Configure CPU cooling Michael Kao (2): thermal: mediatek: add another get_temp ops for thermal sensors arm64: dts: mt8183: add thermal zone node --- drivers/thermal/mtk_thermal.c | 95 +++++++++++++++++++++++++++++++------------ 1 file changed, 70 insertions(+), 25 deletions(-) diff --git a/drivers/thermal/mtk_thermal.c b/drivers/thermal/mtk_thermal.c index ede94ea..8bb0bb2 100644 --- a/drivers/thermal/mtk_thermal.c +++ b/drivers/thermal/mtk_thermal.c @@ -271,6 +271,7 @@ struct mtk_thermal_data { bool need_switch_bank; struct thermal_bank_cfg bank_data[MAX_NUM_ZONES]; enum mtk_thermal_version version; + int (*raw_to_mcelsius)(struct mtk_thermal *mt, int sensno, s32 raw); }; struct mtk_thermal { @@ -294,6 +295,9 @@ struct mtk_thermal { struct mtk_thermal_bank banks[MAX_NUM_ZONES]; }; +static int raw_to_mcelsius_v1(struct mtk_thermal *mt, int sensno, s32 raw); +static int raw_to_mcelsius_v2(struct mtk_thermal *mt, int sensno, s32 raw); + /* MT8183 thermal sensor data */ static const int mt8183_bank_data[MT8183_NUM_SENSORS] = { MT8183_TS1, MT8183_TS2, MT8183_TS3, MT8183_TS4, MT8183_TS5, MT8183_TSABB @@ -427,6 +431,7 @@ struct mtk_thermal { .adcpnp = mt8173_adcpnp, .sensor_mux_values = mt8173_mux_values, .version = MTK_THERMAL_V1, + .raw_to_mcelsius = raw_to_mcelsius_v1, }; /* @@ -458,6 +463,7 @@ struct mtk_thermal { .adcpnp = mt2701_adcpnp, .sensor_mux_values = mt2701_mux_values, .version = MTK_THERMAL_V1, + .raw_to_mcelsius = raw_to_mcelsius_v1, }; /* @@ -489,6 +495,7 @@ struct mtk_thermal { .adcpnp = mt2712_adcpnp, .sensor_mux_values = mt2712_mux_values, .version = MTK_THERMAL_V1, + .raw_to_mcelsius = raw_to_mcelsius_v1, }; /* @@ -514,6 +521,7 @@ struct mtk_thermal { .adcpnp = mt7622_adcpnp, .sensor_mux_values = mt7622_mux_values, .version = MTK_THERMAL_V2, + .raw_to_mcelsius = raw_to_mcelsius_v2, }; /* @@ -547,6 +555,7 @@ struct mtk_thermal { .adcpnp = mt8183_adcpnp, .sensor_mux_values = mt8183_mux_values, .version = MTK_THERMAL_V1, + .raw_to_mcelsius = raw_to_mcelsius_v1, }; /** @@ -639,6 +648,27 @@ static void mtk_thermal_put_bank(struct mtk_thermal_bank *bank) mutex_unlock(&mt->lock); } +static u32 _get_sensor_temp(struct mtk_thermal *mt, int id) +{ + u32 raw; + int temp; + + raw = readl(mt->thermal_base + mt->conf->msr[id]); + + temp = mt->conf->raw_to_mcelsius(mt, id, raw); + + /* + * The first read of a sensor often contains very high bogus + * temperature value. Filter these out so that the system does + * not immediately shut down. + */ + + if (temp > 200000) + return -EAGAIN; + else + return temp; +} + /** * mtk_thermal_bank_temperature - get the temperature of a bank * @bank: The bank @@ -649,28 +679,11 @@ static void mtk_thermal_put_bank(struct mtk_thermal_bank *bank) static int mtk_thermal_bank_temperature(struct mtk_thermal_bank *bank) { struct mtk_thermal *mt = bank->mt; - const struct mtk_thermal_data *conf = mt->conf; int i, temp = INT_MIN, max = INT_MIN; - u32 raw; - - for (i = 0; i < conf->bank_data[bank->id].num_sensors; i++) { - raw = readl(mt->thermal_base + conf->msr[i]); - if (mt->conf->version == MTK_THERMAL_V1) { - temp = raw_to_mcelsius_v1( - mt, conf->bank_data[bank->id].sensors[i], raw); - } else { - temp = raw_to_mcelsius_v2( - mt, conf->bank_data[bank->id].sensors[i], raw); - } + for (i = 0; i < mt->conf->bank_data[bank->id].num_sensors; i++) { - /* - * The first read of a sensor often contains very high bogus - * temperature value. Filter these out so that the system does - * not immediately shut down. - */ - if (temp > 200000) - temp = 0; + temp = _get_sensor_temp(mt, i); if (temp > max) max = temp; @@ -681,7 +694,8 @@ static int mtk_thermal_bank_temperature(struct mtk_thermal_bank *bank) static int mtk_read_temp(void *data, int *temperature) { - struct mtk_thermal *mt = data; + struct mtk_thermal_bank *tz = data; + struct mtk_thermal *mt = tz->mt; int i; int tempmax = INT_MIN; @@ -700,10 +714,25 @@ static int mtk_read_temp(void *data, int *temperature) return 0; } +static int mtk_read_sensor_temp(void *data, int *temperature) +{ + struct mtk_thermal_bank *tz = data; + struct mtk_thermal *mt = tz->mt; + int id = tz->id - 1; + + *temperature = _get_sensor_temp(mt, id); + + return 0; +} + static const struct thermal_zone_of_device_ops mtk_thermal_ops = { .get_temp = mtk_read_temp, }; +static const struct thermal_zone_of_device_ops mtk_thermal_sensor_ops = { + .get_temp = mtk_read_sensor_temp, +}; + static void mtk_thermal_init_bank(struct mtk_thermal *mt, int num, u32 apmixed_phys_base, u32 auxadc_phys_base, int ctrl_id) @@ -994,6 +1023,7 @@ static int mtk_thermal_probe(struct platform_device *pdev) u64 auxadc_phys_base, apmixed_phys_base; struct thermal_zone_device *tzdev; void __iomem *apmixed_base, *auxadc_base; + struct mtk_thermal_bank *tz; mt = devm_kzalloc(&pdev->dev, sizeof(*mt), GFP_KERNEL); if (!mt) @@ -1082,11 +1112,26 @@ static int mtk_thermal_probe(struct platform_device *pdev) platform_set_drvdata(pdev, mt); - tzdev = devm_thermal_zone_of_sensor_register(&pdev->dev, 0, mt, - &mtk_thermal_ops); - if (IS_ERR(tzdev)) { - ret = PTR_ERR(tzdev); - goto err_disable_clk_peri_therm; + for (i = 0; i < mt->conf->num_sensors + 1; i++) { + tz = devm_kmalloc(&pdev->dev, sizeof(*tz), GFP_KERNEL); + if (!tz) + return -ENOMEM; + + tz->mt = mt; + tz->id = i; + + tzdev = devm_thermal_zone_of_sensor_register( + &pdev->dev, i, tz, (i == 0) ? + &mtk_thermal_ops : + &mtk_thermal_sensor_ops); + + if (IS_ERR(tzdev)) { + ret = PTR_ERR(tzdev); + dev_err(&pdev->dev, + "Error: Failed to register thermal zone %d, ret = %d\n", + i, ret); + goto err_disable_clk_peri_therm; + } } ret = devm_thermal_add_hwmon_sysfs(tzdev);