From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailout4.samsung.com (mailout4.samsung.com [203.254.224.34]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 42EC02EE5FE for ; Mon, 22 Sep 2025 04:19:16 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=203.254.224.34 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1758514758; cv=none; b=DhYYm5DDmEE7brya3y5DQFI46kScicwP/xSw+u48oB2L42o6V7SV0+RdTIaMNPIy5LieOS6avMjUEIMm3/KtUvb8eu7rp5HaZW5lAs6Nx7PPOiXE8rvXD1pDyiBB3LRPpzu6fPt+FvHWvfs43EZozOd/Ooteky1tZ2NDsey8gtc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1758514758; c=relaxed/simple; bh=T0hJydBdoFUo7wvImGVMe2MW0V2V26rMHnDfTyVef/E=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:MIME-Version: Content-Type:References; b=X9csZ+45i4fQL5WpcjPHJVa1c+DRpZGFPLdfEbf3Us4nB4OAd+wBVAT3qCO/c7QBYdzaZ6buRxqhYXo2plbbiE98kD+l4FZlEmLd57gfXRTIoD0/pjrv90drTUPCDsdEez6R43ERSQw6UctvVzmBwYKHvUQEHhLF9f2cUYBImOQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=samsung.com; spf=pass smtp.mailfrom=samsung.com; dkim=pass (1024-bit key) header.d=samsung.com header.i=@samsung.com header.b=a2LpL+5b; arc=none smtp.client-ip=203.254.224.34 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=samsung.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=samsung.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=samsung.com header.i=@samsung.com header.b="a2LpL+5b" Received: from epcas2p4.samsung.com (unknown [182.195.41.56]) by mailout4.samsung.com (KnoxPortal) with ESMTP id 20250922041904epoutp04090e05e58c8322f1fd97decf4ae31be5~nf9ffZCwf0304103041epoutp04h for ; Mon, 22 Sep 2025 04:19:04 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 mailout4.samsung.com 20250922041904epoutp04090e05e58c8322f1fd97decf4ae31be5~nf9ffZCwf0304103041epoutp04h DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=samsung.com; s=mail20170921; t=1758514744; bh=txdsmk5WRRZ9adq/MZc+enF9jhICF3HDwj8f4dipGu0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=a2LpL+5bcSM0MLv9pCpaPmuiSmURyJfxEBvOM87Sb/eMmjQnqCWznFSH0u2wxsldp XUZyLFzIYyU6TckKArMyVlE4k5HfMrg/W66DYkpqiTHC4zlfcAm3GR+TnFPNzzOGJM yNqvkOFjPAMpN5QTIjbJg3AX3SHo8ZnmFO1BwBG8= Received: from epsnrtp03.localdomain (unknown [182.195.42.155]) by epcas2p2.samsung.com (KnoxPortal) with ESMTPS id 20250922041903epcas2p2ef845743bb2a906447a501e156701329~nf9e07w-t2487424874epcas2p2M; Mon, 22 Sep 2025 04:19:03 +0000 (GMT) Received: from epcas2p1.samsung.com (unknown [182.195.36.88]) by epsnrtp03.localdomain (Postfix) with ESMTP id 4cVVHC0XRQz3hhT7; Mon, 22 Sep 2025 04:19:03 +0000 (GMT) Received: from epsmtip2.samsung.com (unknown [182.195.34.31]) by epcas2p3.samsung.com (KnoxPortal) with ESMTPA id 20250922041902epcas2p3e40ed58737b22b7af9d09f6ba362928d~nf9dFaAGg1715917159epcas2p3U; Mon, 22 Sep 2025 04:19:02 +0000 (GMT) Received: from asswp60 (unknown [10.229.9.60]) by epsmtip2.samsung.com (KnoxPortal) with ESMTPA id 20250922041901epsmtip280894dfc5e48564465e06324da89bd4f~nf9c-z8Aq0811708117epsmtip24; Mon, 22 Sep 2025 04:19:01 +0000 (GMT) From: Shin Son To: Bartlomiej Zolnierkiewicz , Krzysztof Kozlowski , "Rafael J . Wysocki" , Daniel Lezcano , Zhang Rui , Lukasz Luba , Rob Herring , Conor Dooley , Alim Akhtar , Henrik Grimler Cc: Shin Son , linux-pm@vger.kernel.org, linux-samsung-soc@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH v4 2/3] thermal: exynos_tmu: Support new hardware and update TMU interface Date: Mon, 22 Sep 2025 13:18:56 +0900 Message-ID: <20250922041857.1107445-3-shin.son@samsung.com> X-Mailer: git-send-email 2.50.1 In-Reply-To: <20250922041857.1107445-1-shin.son@samsung.com> Precedence: bulk X-Mailing-List: linux-pm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CMS-MailID: 20250922041902epcas2p3e40ed58737b22b7af9d09f6ba362928d X-Msg-Generator: CA Content-Type: text/plain; charset="utf-8" X-Sendblock-Type: AUTO_CONFIDENTIAL CMS-TYPE: 102P cpgsPolicy: CPGSC10-234,Y X-CFilter-Loop: Reflected X-CMS-RootMailID: 20250922041902epcas2p3e40ed58737b22b7af9d09f6ba362928d References: <20250922041857.1107445-1-shin.son@samsung.com> The Exynos tmu driver's private data structure has been extended to support the exynosautov920 hardware, which requires per-sensor interrupt enablement and multiple-zone handling: - Add 'slope_comp' : compensation parameter below 25 degrees. - Add 'calib_temp' : stores the fused calibaration temperature. - Add 'sensor_count' : reflects the maximum sensor numbers. - Rename 'tzd' -> 'tzd_array' to register multiple thermal zones. Since splitting this patch causes runtime errors during temperature emulation or problems where the read temperature feature fails to retrieve values, I have submitted it as a single commit. To add support for the exynosautov920 to the exisiting TMU interface, the following changes are included: 1. Simplify "temp_to_code" and "code_to_temp" to one computation path by normalizing calib_temp. 2. Loop over 'sensor_count' in critical-point setup. 3. Introduce 'update_con_reg' for exynosautov920 control-register updates. 4. Add exynosautov920-specific branch in 'exynos_tmu_update_temp' function. 5. Skip high & low temperature threshold setup in exynosautov920. 6. Enable interrupts via sensor_count in exynosautov920. 7. Initialize all new members during 'exynosautov920_tmu_initialize'. 8. Clear IRQs by iterating the sensor_count in exynosautov920. 9. Register each zone with 'devm_thermal_of_zone_register()' based on 'sensor_count'. Signed-off-by: Shin Son --- drivers/thermal/samsung/exynos_tmu.c | 322 ++++++++++++++++++++++++--- 1 file changed, 285 insertions(+), 37 deletions(-) diff --git a/drivers/thermal/samsung/exynos_tmu.c b/drivers/thermal/samsung/exynos_tmu.c index 47a99b3c5395..ebcc38f3fff6 100644 --- a/drivers/thermal/samsung/exynos_tmu.c +++ b/drivers/thermal/samsung/exynos_tmu.c @@ -121,8 +121,51 @@ #define EXYNOS_NOISE_CANCEL_MODE 4 +/* ExynosAutov920 specific registers */ +#define EXYNOSAUTOV920_SLOPE_COMP 25 +#define EXYNOSAUTOV920_SLOPE_COMP_MASK 0xf +#define EXYNOSAUTOV920_CALIB_SEL_TEMP 30 +#define EXYNOSAUTOV920_CALIB_SEL_TEMP_MASK 0x2 + +#define EXYNOSAUTOV920_SENSOR0_TRIM_INFO 0x10 +#define EXYNOSAUTOV920_TRIM_MASK 0x1ff +#define EXYNOSAUTOV920_TRIMINFO_25_SHIFT 0 +#define EXYNOSAUTOV920_TRIMINFO_85_SHIFT 9 + +#define EXYNOSAUTOV920_TMU_REG_TRIMINFO2 0x04 + +#define EXYNOSAUTOV920_TMU_REG_THRESHOLD(p) (((p)) * 0x50 + 0x00d0) +#define EXYNOSAUTOV920_TMU_REG_INTEN(p) (((p)) * 0x50 + 0x00f0) +#define EXYNOSAUTOV920_TMU_REG_INT_PEND(p) (((p)) * 0x50 + 0x00f8) + +#define EXYNOSAUTOV920_CURRENT_TEMP_P1_P0 0x084 +#define EXYNOSAUTOV920_TMU_REG_EMUL_CON 0x0b0 + +#define EXYNOSAUTOV920_TMU_REG_CONTROL 0x50 +#define EXYNOSAUTOV920_TMU_REG_CONTROL1 0x54 +#define EXYNOSAUTOV920_TMU_REG_AVG_CONTROL 0x58 +#define EXYNOSAUTOV920_TMU_SAMPLING_INTERVAL 0x70 +#define EXYNOSAUTOV920_TMU_REG_COUNTER_VALUE0 0x74 +#define EXYNOSAUTOV920_TMU_REG_COUNTER_VALUE1 0x78 + +#define EXYNOSAUTOV920_TMU_T_BUF_VREF_SEL_SHIFT 8 +#define EXYNOSAUTOV920_TMU_T_BUF_VREF_SEL_MASK 0x1f +#define EXYNOSAUTOV920_TMU_T_BUF_SLOPE_SEL_SHIFT 3 +#define EXYNOSAUTOV920_TMU_T_BUF_SLOPE_SEL_MASK 0xf +#define EXYNOSAUTOV920_TMU_NUM_PROBE_MASK 0xf +#define EXYNOSAUTOV920_TMU_NUM_PROBE_SHIFT 16 +#define EXYNOSAUTOV920_TMU_LPI_MODE_MASK 1 +#define EXYNOSAUTOV920_TMU_LPI_MODE_SHIFT 10 + +#define EXYNOSAUTOV920_TMU_AVG_CON_UPDATE 0x0008011a +#define EXYNOSAUTOV920_TMU_COUNTER_VALUE0_UPDATE 0x030003c0 +#define EXYNOSAUTOV920_TMU_COUNTER_VALUE1_UPDATE 0x03c0004d + #define MCELSIUS 1000 +#define EXYNOS_DEFAULT_SENSOR_COUNT 1 +#define EXYNOS_MAX_SENSOR_COUNT 16 + enum soc_type { SOC_ARCH_EXYNOS3250 = 1, SOC_ARCH_EXYNOS4210, @@ -133,6 +176,7 @@ enum soc_type { SOC_ARCH_EXYNOS5420_TRIMINFO, SOC_ARCH_EXYNOS5433, SOC_ARCH_EXYNOS7, + SOC_ARCH_EXYNOSAUTOV920, }; /** @@ -150,6 +194,8 @@ enum soc_type { * @efuse_value: SoC defined fuse value * @min_efuse_value: minimum valid trimming data * @max_efuse_value: maximum valid trimming data + * @slope_comp: allocated value of the slope compensation. + * @calib_temp: calibration temperature of the TMU. * @temp_error1: fused value of the first point trim. * @temp_error2: fused value of the second point trim. * @gain: gain of amplifier in the positive-TC generator block @@ -157,7 +203,8 @@ enum soc_type { * @reference_voltage: reference voltage of amplifier * in the positive-TC generator block * 0 < reference_voltage <= 31 - * @tzd: pointer to thermal_zone_device structure + * @sensor_count: The maximum number of the sensors + * @tzd_array: pointer array of thermal_zone_device structure * @enabled: current status of TMU device * @tmu_set_low_temp: SoC specific method to set trip (falling threshold) * @tmu_set_high_temp: SoC specific method to set trip (rising threshold) @@ -174,6 +221,7 @@ struct exynos_tmu_data { void __iomem *base; void __iomem *base_second; int irq; + int sensor_count; enum soc_type soc; struct mutex lock; struct clk *clk, *clk_sec, *sclk; @@ -181,10 +229,12 @@ struct exynos_tmu_data { u32 efuse_value; u32 min_efuse_value; u32 max_efuse_value; + u16 slope_comp; + u16 calib_temp; u16 temp_error1, temp_error2; u8 gain; u8 reference_voltage; - struct thermal_zone_device *tzd; + struct thermal_zone_device *tzd_array[EXYNOS_MAX_SENSOR_COUNT]; bool enabled; void (*tmu_set_low_temp)(struct exynos_tmu_data *data, u8 temp); @@ -205,13 +255,20 @@ struct exynos_tmu_data { */ static int temp_to_code(struct exynos_tmu_data *data, u8 temp) { + s32 temp_diff, code; + if (data->cal_type == TYPE_ONE_POINT_TRIMMING) return temp + data->temp_error1 - EXYNOS_FIRST_POINT_TRIM; - return (temp - EXYNOS_FIRST_POINT_TRIM) * - (data->temp_error2 - data->temp_error1) / - (EXYNOS_SECOND_POINT_TRIM - EXYNOS_FIRST_POINT_TRIM) + - data->temp_error1; + temp_diff = temp - EXYNOS_FIRST_POINT_TRIM; + + code = temp_diff * (data->temp_error2 - data->temp_error1) * MCELSIUS / + (data->calib_temp - EXYNOS_FIRST_POINT_TRIM); + + if (data->soc == SOC_ARCH_EXYNOSAUTOV920 && temp_diff < 0) + code = code * (57 + data->slope_comp) / 65; + + return code / MCELSIUS + data->temp_error1; } /* @@ -220,13 +277,20 @@ static int temp_to_code(struct exynos_tmu_data *data, u8 temp) */ static int code_to_temp(struct exynos_tmu_data *data, u16 temp_code) { + s32 code_diff, temp; + if (data->cal_type == TYPE_ONE_POINT_TRIMMING) return temp_code - data->temp_error1 + EXYNOS_FIRST_POINT_TRIM; - return (temp_code - data->temp_error1) * - (EXYNOS_SECOND_POINT_TRIM - EXYNOS_FIRST_POINT_TRIM) / - (data->temp_error2 - data->temp_error1) + - EXYNOS_FIRST_POINT_TRIM; + code_diff = temp_code - data->temp_error1; + + temp = code_diff * (data->calib_temp - EXYNOS_FIRST_POINT_TRIM) * MCELSIUS / + (data->temp_error2 - data->temp_error1); + + if (data->soc == SOC_ARCH_EXYNOSAUTOV920 && code_diff < 0) + temp = temp * 65 / (57 + data->slope_comp); + + return temp / MCELSIUS + EXYNOS_FIRST_POINT_TRIM; } static void sanitize_temp_error(struct exynos_tmu_data *data, u32 trim_info) @@ -262,6 +326,9 @@ static int exynos_tmu_initialize(struct platform_device *pdev) clk_enable(data->clk_sec); status = readb(data->base + EXYNOS_TMU_REG_STATUS); + if (data->soc == SOC_ARCH_EXYNOSAUTOV920) + status = readl(data->base + EXYNOS_TMU_REG_TRIMINFO); + if (!status) { ret = -EBUSY; } else { @@ -280,27 +347,34 @@ static int exynos_tmu_initialize(struct platform_device *pdev) static int exynos_thermal_zone_configure(struct platform_device *pdev) { struct exynos_tmu_data *data = platform_get_drvdata(pdev); - struct thermal_zone_device *tzd = data->tzd; - int ret, temp; + struct thermal_zone_device *tzd; + int ret, temp, idx; - ret = thermal_zone_get_crit_temp(tzd, &temp); - if (ret) { - /* FIXME: Remove this special case */ - if (data->soc == SOC_ARCH_EXYNOS5433) - return 0; + for (idx = 0; idx < data->sensor_count; idx++) { + tzd = data->tzd_array[idx]; - dev_err(&pdev->dev, - "No CRITICAL trip point defined in device tree!\n"); - return ret; - } + if (!tzd) + continue; - mutex_lock(&data->lock); - clk_enable(data->clk); + ret = thermal_zone_get_crit_temp(tzd, &temp); + if (ret) { + /* FIXME: Remove this special case */ + if (data->soc == SOC_ARCH_EXYNOS5433) + return 0; - data->tmu_set_crit_temp(data, temp / MCELSIUS); + dev_err(&pdev->dev, + "No CRITICAL trip point defined in device tree!\n"); + return ret; + } - clk_disable(data->clk); - mutex_unlock(&data->lock); + mutex_lock(&data->lock); + clk_enable(data->clk); + + data->tmu_set_crit_temp(data, temp / MCELSIUS); + + clk_disable(data->clk); + mutex_unlock(&data->lock); + } return 0; } @@ -323,6 +397,37 @@ static u32 get_con_reg(struct exynos_tmu_data *data, u32 con) return con; } +static void update_con_reg(struct exynos_tmu_data *data) +{ + u32 val, t_buf_vref_sel, t_buf_slope_sel; + + val = readl(data->base + EXYNOS_TMU_REG_TRIMINFO); + t_buf_vref_sel = (val >> EXYNOSAUTOV920_TMU_T_BUF_VREF_SEL_SHIFT) + & EXYNOSAUTOV920_TMU_T_BUF_VREF_SEL_MASK; + t_buf_slope_sel = (val >> EXYNOSAUTOV920_TMU_T_BUF_SLOPE_SEL_SHIFT) + & EXYNOSAUTOV920_TMU_T_BUF_SLOPE_SEL_MASK; + + val = readl(data->base + EXYNOSAUTOV920_TMU_REG_CONTROL); + val &= ~(EXYNOS_TMU_REF_VOLTAGE_MASK << EXYNOS_TMU_REF_VOLTAGE_SHIFT); + val |= (t_buf_vref_sel << EXYNOS_TMU_REF_VOLTAGE_SHIFT); + val &= ~(EXYNOS_TMU_BUF_SLOPE_SEL_MASK << EXYNOS_TMU_BUF_SLOPE_SEL_SHIFT); + val |= (t_buf_slope_sel << EXYNOS_TMU_BUF_SLOPE_SEL_SHIFT); + writel(val, data->base + EXYNOSAUTOV920_TMU_REG_CONTROL); + + val = readl(data->base + EXYNOSAUTOV920_TMU_REG_CONTROL1); + val &= ~(EXYNOSAUTOV920_TMU_NUM_PROBE_MASK << EXYNOSAUTOV920_TMU_NUM_PROBE_SHIFT); + val &= ~(EXYNOSAUTOV920_TMU_LPI_MODE_MASK << EXYNOSAUTOV920_TMU_LPI_MODE_SHIFT); + val |= (data->sensor_count << EXYNOSAUTOV920_TMU_NUM_PROBE_SHIFT); + writel(val, data->base + EXYNOSAUTOV920_TMU_REG_CONTROL1); + + writel(1, data->base + EXYNOSAUTOV920_TMU_SAMPLING_INTERVAL); + writel(EXYNOSAUTOV920_TMU_AVG_CON_UPDATE, data->base + EXYNOSAUTOV920_TMU_REG_AVG_CONTROL); + writel(EXYNOSAUTOV920_TMU_COUNTER_VALUE0_UPDATE, + data->base + EXYNOSAUTOV920_TMU_REG_COUNTER_VALUE0); + writel(EXYNOSAUTOV920_TMU_COUNTER_VALUE1_UPDATE, + data->base + EXYNOSAUTOV920_TMU_REG_COUNTER_VALUE1); +} + static void exynos_tmu_control(struct platform_device *pdev, bool on) { struct exynos_tmu_data *data = platform_get_drvdata(pdev); @@ -354,9 +459,8 @@ static void exynos_tmu_update_temp(struct exynos_tmu_data *data, int reg_off, u16 tmu_temp_mask; u32 th; - tmu_temp_mask = - (data->soc == SOC_ARCH_EXYNOS7) ? EXYNOS7_TMU_TEMP_MASK - : EXYNOS_TMU_TEMP_MASK; + tmu_temp_mask = (data->soc == SOC_ARCH_EXYNOS7 || data->soc == SOC_ARCH_EXYNOSAUTOV920) + ? EXYNOS7_TMU_TEMP_MASK : EXYNOS_TMU_TEMP_MASK; th = readl(data->base + reg_off); th &= ~(tmu_temp_mask << bit_off); @@ -582,6 +686,68 @@ static void exynos7_tmu_initialize(struct platform_device *pdev) sanitize_temp_error(data, trim_info); } +static void exynosautov920_tmu_set_low_temp(struct exynos_tmu_data *data, u8 temp) +{ + /* + * Failing thresholds are not supported on Exynosautov920. + * We use polling instead. + */ +} + +static void exynosautov920_tmu_set_high_temp(struct exynos_tmu_data *data, u8 temp) +{ + /* + * Rising thresholds are not supported on Exynosautov920. + * We use polling instead. + */ +} + +static void exynosautov920_tmu_disable_low(struct exynos_tmu_data *data) +{ + /* Again, this is handled by polling. */ +} + +static void exynosautov920_tmu_disable_high(struct exynos_tmu_data *data) +{ + /* Again, this is handled by polling. */ +} + +static void exynosautov920_tmu_set_crit_temp(struct exynos_tmu_data *data, u8 temp) +{ + unsigned int idx; + + for (idx = 0; idx < data->sensor_count; idx++) { + if (!data->tzd_array[idx]) + continue; + + exynos_tmu_update_temp(data, EXYNOSAUTOV920_TMU_REG_THRESHOLD(idx), 16, temp); + exynos_tmu_update_bit(data, EXYNOSAUTOV920_TMU_REG_INTEN(idx), 7, true); + } +} + +static void exynosautov920_tmu_initialize(struct platform_device *pdev) +{ + struct exynos_tmu_data *data = platform_get_drvdata(pdev); + unsigned int val; + + data->tmu_control(pdev, false); + + update_con_reg(data); + + val = readl(data->base + EXYNOS_TMU_REG_TRIMINFO); + data->cal_type = TYPE_TWO_POINT_TRIMMING; + data->slope_comp = (val >> EXYNOSAUTOV920_SLOPE_COMP) & EXYNOSAUTOV920_SLOPE_COMP_MASK; + + val = readl(data->base + EXYNOSAUTOV920_SENSOR0_TRIM_INFO); + data->temp_error1 = (val >> EXYNOSAUTOV920_TRIMINFO_25_SHIFT) & EXYNOSAUTOV920_TRIM_MASK; + data->temp_error2 = (val >> EXYNOSAUTOV920_TRIMINFO_85_SHIFT) & EXYNOSAUTOV920_TRIM_MASK; + + val = readl(data->base + EXYNOSAUTOV920_TMU_REG_TRIMINFO2); + val = (val >> EXYNOSAUTOV920_CALIB_SEL_TEMP) & EXYNOSAUTOV920_CALIB_SEL_TEMP_MASK; + + data->calib_temp = (EXYNOS_SECOND_POINT_TRIM + (20 * val)); +} + static void exynos4210_tmu_control(struct platform_device *pdev, bool on) { struct exynos_tmu_data *data = platform_get_drvdata(pdev); @@ -633,6 +799,24 @@ static void exynos7_tmu_control(struct platform_device *pdev, bool on) writel(con, data->base + EXYNOS_TMU_REG_CONTROL); } +static void exynosautov920_tmu_control(struct platform_device *pdev, bool on) +{ + struct exynos_tmu_data *data = platform_get_drvdata(pdev); + unsigned int con; + + con = readl(data->base + EXYNOSAUTOV920_TMU_REG_CONTROL); + + if (on) { + con |= BIT(EXYNOS_TMU_THERM_TRIP_EN_SHIFT); + con |= BIT(EXYNOS_TMU_CORE_EN_SHIFT); + } else { + con &= ~BIT(EXYNOS_TMU_THERM_TRIP_EN_SHIFT); + con &= ~BIT(EXYNOS_TMU_CORE_EN_SHIFT); + } + + writel(con, data->base + EXYNOSAUTOV920_TMU_REG_CONTROL); +} + static int exynos_get_temp(struct thermal_zone_device *tz, int *temp) { struct exynos_tmu_data *data = thermal_zone_device_priv(tz); @@ -671,7 +855,7 @@ static u32 get_emul_con_reg(struct exynos_tmu_data *data, unsigned int val, val &= ~(EXYNOS_EMUL_TIME_MASK << EXYNOS_EMUL_TIME_SHIFT); val |= (EXYNOS_EMUL_TIME << EXYNOS_EMUL_TIME_SHIFT); - if (data->soc == SOC_ARCH_EXYNOS7) { + if (data->soc == SOC_ARCH_EXYNOS7 || data->soc == SOC_ARCH_EXYNOSAUTOV920) { val &= ~(EXYNOS7_EMUL_DATA_MASK << EXYNOS7_EMUL_DATA_SHIFT); val |= (temp_to_code(data, temp) << @@ -703,6 +887,8 @@ static void exynos4412_tmu_set_emulation(struct exynos_tmu_data *data, emul_con = EXYNOS5433_TMU_EMUL_CON; else if (data->soc == SOC_ARCH_EXYNOS7) emul_con = EXYNOS7_TMU_REG_EMUL_CON; + else if (data->soc == SOC_ARCH_EXYNOSAUTOV920) + emul_con = EXYNOSAUTOV920_TMU_REG_EMUL_CON; else emul_con = EXYNOS_EMUL_CON; @@ -756,11 +942,23 @@ static int exynos7_tmu_read(struct exynos_tmu_data *data) EXYNOS7_TMU_TEMP_MASK; } +static int exynosautov920_tmu_read(struct exynos_tmu_data *data) +{ + return readw(data->base + EXYNOSAUTOV920_CURRENT_TEMP_P1_P0) & + EXYNOS7_TMU_TEMP_MASK; +} + static irqreturn_t exynos_tmu_threaded_irq(int irq, void *id) { struct exynos_tmu_data *data = id; + int idx; - thermal_zone_device_update(data->tzd, THERMAL_EVENT_UNSPECIFIED); + for (idx = 0; idx < data->sensor_count; idx++) { + if (!data->tzd_array[idx]) + continue; + + thermal_zone_device_update(data->tzd_array[idx], THERMAL_EVENT_UNSPECIFIED); + } mutex_lock(&data->lock); clk_enable(data->clk); @@ -805,6 +1003,19 @@ static void exynos4210_tmu_clear_irqs(struct exynos_tmu_data *data) writel(val_irq, data->base + tmu_intclear); } +static void exynosautov920_tmu_clear_irqs(struct exynos_tmu_data *data) +{ + unsigned int idx, val_irq; + + for (idx = 0; idx < data->sensor_count; idx++) { + if (!data->tzd_array[idx]) + continue; + + val_irq = readl(data->base + EXYNOSAUTOV920_TMU_REG_INT_PEND(idx)); + writel(val_irq, data->base + EXYNOSAUTOV920_TMU_REG_INT_PEND(idx)); + } +} + static const struct of_device_id exynos_tmu_match[] = { { .compatible = "samsung,exynos3250-tmu", @@ -833,6 +1044,9 @@ static const struct of_device_id exynos_tmu_match[] = { }, { .compatible = "samsung,exynos7-tmu", .data = (const void *)SOC_ARCH_EXYNOS7, + }, { + .compatible = "samsung,exynosautov920-tmu", + .data = (const void *)SOC_ARCH_EXYNOSAUTOV920, }, { }, }; @@ -865,6 +1079,10 @@ static int exynos_map_dt_data(struct platform_device *pdev) data->soc = (uintptr_t)of_device_get_match_data(&pdev->dev); + data->sensor_count = EXYNOS_DEFAULT_SENSOR_COUNT; + + data->calib_temp = EXYNOS_SECOND_POINT_TRIM; + switch (data->soc) { case SOC_ARCH_EXYNOS4210: data->tmu_set_low_temp = exynos4210_tmu_set_low_temp; @@ -945,6 +1163,19 @@ static int exynos_map_dt_data(struct platform_device *pdev) data->min_efuse_value = 15; data->max_efuse_value = 100; break; + case SOC_ARCH_EXYNOSAUTOV920: + data->tmu_set_low_temp = exynosautov920_tmu_set_low_temp; + data->tmu_set_high_temp = exynosautov920_tmu_set_high_temp; + data->tmu_disable_low = exynosautov920_tmu_disable_low; + data->tmu_disable_high = exynosautov920_tmu_disable_high; + data->tmu_set_crit_temp = exynosautov920_tmu_set_crit_temp; + data->tmu_initialize = exynosautov920_tmu_initialize; + data->tmu_control = exynosautov920_tmu_control; + data->tmu_read = exynosautov920_tmu_read; + data->tmu_set_emulation = exynos4412_tmu_set_emulation; + data->tmu_clear_irqs = exynosautov920_tmu_clear_irqs; + data->sensor_count = EXYNOS_MAX_SENSOR_COUNT; + break; default: dev_err(&pdev->dev, "Platform not supported\n"); return -EINVAL; @@ -952,6 +1183,14 @@ static int exynos_map_dt_data(struct platform_device *pdev) data->cal_type = TYPE_ONE_POINT_TRIMMING; + if (data->soc == SOC_ARCH_EXYNOSAUTOV920) { + if (of_property_read_u32(pdev->dev.of_node, "samsung,sensors", + &data->sensor_count)) { + dev_err(&pdev->dev, "failed to get sensor count\n"); + return -ENODEV; + } + } + /* * Check if the TMU shares some registers and then try to map the * memory of common registers. @@ -1006,7 +1245,8 @@ static int exynos_tmu_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; struct exynos_tmu_data *data; - int ret; + struct thermal_zone_device *tzd; + int ret, idx; data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL); if (!data) @@ -1084,11 +1324,19 @@ static int exynos_tmu_probe(struct platform_device *pdev) goto err_sclk; } - data->tzd = devm_thermal_of_zone_register(dev, 0, data, - &exynos_sensor_ops); - if (IS_ERR(data->tzd)) { - ret = dev_err_probe(dev, PTR_ERR(data->tzd), "Failed to register sensor\n"); - goto err_sclk; + for (idx = 0; idx < data->sensor_count; idx++) { + tzd = devm_thermal_of_zone_register(dev, idx, data, &exynos_sensor_ops); + + if (IS_ERR(tzd)) { + if (PTR_ERR(tzd) == -ENODEV) + continue; + + ret = dev_err_probe(dev, PTR_ERR(data->tzd_array[idx]), + "Failed to register sensor\n"); + goto err_sclk; + } + + data->tzd_array[idx] = tzd; } ret = exynos_thermal_zone_configure(pdev); -- 2.50.1