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([2a04:ee41:82:7577:9cf6:f1e5:ce2b:ea6b]) by smtp.googlemail.com with ESMTPSA id 4fb4d7f45d1cf-5cb66c6b12dsm2338702a12.77.2024.10.21.12.53.21 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 21 Oct 2024 12:53:22 -0700 (PDT) From: Vasileios Amoiridis To: jic23@kernel.org, lars@metafoo.de, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, andriy.shevchenko@linux.intel.com Cc: vassilisamir@gmail.com, anshulusr@gmail.com, gustavograzs@gmail.com, linux-iio@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Stable@vger.kernel.org Subject: [PATCH v2 01/13] iio: chemical: bme680: Fix missing header Date: Mon, 21 Oct 2024 21:53:04 +0200 Message-ID: <20241021195316.58911-2-vassilisamir@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20241021195316.58911-1-vassilisamir@gmail.com> References: <20241021195316.58911-1-vassilisamir@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Add the linux/regmap.h header since the struct regmap_config is used in this file. Cc: Fixes: 1b3bd8592780 ("iio: chemical: Add support for Bosch BME680 sensor") Signed-off-by: Vasileios Amoiridis --- drivers/iio/chemical/bme680.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/iio/chemical/bme680.h b/drivers/iio/chemical/bme680.h index b2c547ac8d34..dc9ff477da34 100644 --- a/drivers/iio/chemical/bme680.h +++ b/drivers/iio/chemical/bme680.h @@ -2,6 +2,8 @@ #ifndef BME680_H_ #define BME680_H_ =20 +#include + #define BME680_REG_CHIP_ID 0xD0 #define BME680_CHIP_ID_VAL 0x61 #define BME680_REG_SOFT_RESET 0xE0 --=20 2.43.0 From nobody Tue Nov 26 04:47:02 2024 Received: from mail-ed1-f48.google.com (mail-ed1-f48.google.com [209.85.208.48]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 153A91E0DF9; Mon, 21 Oct 2024 19:53:26 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.208.48 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729540409; cv=none; b=dcJewuUuss92t93mR4cMkr+53gvkj/o5A05pc8s0UTCytnnu5HwFO3nNZgWi3UwwcH7pf5zM/2Jnxp1+YKyWi8mblo2PL7x0eaxGep/9TF6ADekwmnZz4TQMNtpHF0lYTavel9z7ImdoRqMMRUpMpWBsIlUZ3QyhZdCU6aoGP/c= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729540409; c=relaxed/simple; bh=ZxpP7aJwaJLHATVot1wu9EBhCXPJL7g2dbLyHzIBc7k=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=NGbCGeISe82MoWg3AxAa7jQuLo3hzZ2/hQ1k4kmnfJ0kVgaGuhhQ7uY2PZiiciI0tprJExqZ7otyOUA7g77wwoTx64PI65hQqPUAqsq+Z6naTOH/OEz+JdJp6iGaTOkBmbOSBL0rs3roLcd/o8bfdi9/bbjgyLQxwmIEvxkG+gU= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=MUIyDxVC; arc=none smtp.client-ip=209.85.208.48 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="MUIyDxVC" Received: by mail-ed1-f48.google.com with SMTP id 4fb4d7f45d1cf-5c937b5169cso263368a12.1; Mon, 21 Oct 2024 12:53:26 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1729540405; x=1730145205; darn=vger.kernel.org; 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=4gGP7bFWIQ4JodD++nMtz1bBbN0FE4q51Iek/goH/Gw=; b=MUIyDxVCh9LvlD4BTbstvUn8TIPPOtVFpLI0/bPBFpacqODi6Z3uoPU09F1NUKi+2q GlFPHx0KvINPi/rhGHBcCG1fitALNExiqfLlQrowx4IPBG5eCDXewzBXQKyD4XufNUH8 yRIODARzVEIMdj9x85M4Rbm8Hnfq7Vqs9FWpHtAcC+engcJ3x7YH2fjl+JxzMMkgR1rk WVNuaurx59JRvwzBDlzJ3p27ipRP4nEl16sssxhyHW0f1TlkUwkYejUjOctRmWPeeqN6 lr6pUWcJlNPkRaYwArpDLQ8MASk8eZ/5AjZvIyg1R0cJfUjFnSU1+WZxGFlnZvpyogkh 72iQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1729540405; x=1730145205; 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=4gGP7bFWIQ4JodD++nMtz1bBbN0FE4q51Iek/goH/Gw=; b=s6g7KpIgLWWyiFrXOi5iGXu2IavDmST0EUl0LHWiIsTHhIZBrSr8sZDssfe9UOWwaL vZEn+CqYQpmpLNYLn0VKGdU0M+QGkYkrnGFALTrT4FJDT2236Gu62qxSsNioXiJtE5AE mPJc0TcoZl729f8UH/IvdrW63K/U19kpCrOVhdIin2M2zetI90aL5rLkFelDNJuMes2H LNwjh9h5CIzwI9fLwzxNPOFtlDx0QhgV/RgoBK6mqx+YPWluOHXTxJoP8D8wYdQigwAd Plyl1w6u3PHlELKQiEi3TKeVNjwB4oFnaBuC9B/vxeHPoy+ARpyTtBy6QlF58wZnHVmI giSw== X-Forwarded-Encrypted: i=1; AJvYcCUNJExXtrur7Q1bT7WaG6ZCAW04rolY4QtGVxvPFB+WvuRvTYTi6PzORe8j2RDMdG8FRegWhbx+oW9V@vger.kernel.org, AJvYcCVE4WIu3PlqAZ1MR3KNpSFCuW2FcUEady6xhlvuQyZxpUsFT0ir2566b2EfTc1A+nmXg+zofpciIJgm@vger.kernel.org, AJvYcCWZmO0Q/TU7O1HjqMKe9H0nPCxXWuAn/3HTfzWTim6WN9Z5Hzfg+sEqRTjE8hzj0uqrNn3AgsYhKTKWf6CD@vger.kernel.org X-Gm-Message-State: AOJu0YxHzEF2erjnCy7jmpkZ8yN2xR9AB9BD6a7n7863zFNbjfm5DLRP wv3h5Ixu49OxhiMsNmbDMri/CPfRtUslO2hwQ8UTtA73xA8jlCzr X-Google-Smtp-Source: AGHT+IEOLHrwWtlApmwLQ+Se615asrYaJdL1yL//ZCA6cK6yt8cbuWqIVJw4MyA3nNKVYTXVq+MeRg== X-Received: by 2002:a05:6402:2808:b0:5c9:1cdf:bbae with SMTP id 4fb4d7f45d1cf-5cb79479ee0mr790864a12.11.1729540405150; Mon, 21 Oct 2024 12:53:25 -0700 (PDT) Received: from vamoirid-laptop.. 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Signed-off-by: Vasileios Amoiridis --- drivers/iio/chemical/bme680.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/iio/chemical/bme680.h b/drivers/iio/chemical/bme680.h index dc9ff477da34..f5be4516dde7 100644 --- a/drivers/iio/chemical/bme680.h +++ b/drivers/iio/chemical/bme680.h @@ -65,7 +65,8 @@ =20 #define BME680_MEAS_TRIM_MASK GENMASK(24, 4) =20 -#define BME680_STARTUP_TIME_US 5000 +/* Datasheet Section 1.1, Table 1 */ +#define BME680_STARTUP_TIME_US 2000 =20 /* Calibration Parameters */ #define BME680_T2_LSB_REG 0x8A --=20 2.43.0 From nobody Tue Nov 26 04:47:02 2024 Received: from mail-ed1-f43.google.com (mail-ed1-f43.google.com [209.85.208.43]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 223E01EB9E3; Mon, 21 Oct 2024 19:53:27 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.208.43 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729540410; cv=none; b=mZRLiy5iXkZsl0WTqCdk+gXRWU10MCwiesBh45Jys3uwry5JHi2WM7V32t3yCCVm1lsU0jhgsTiKIxuWvjzfv96F1wKA5RZybI/TJi9gUrGSpq1Ut5YSg6Nb4+YgoTGHRvPcPg4j+Q/9U3pnOFGuEYsqXblgXe5BjEXlggZy8MQ= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729540410; c=relaxed/simple; bh=pacgdWs+yQkE73J1SRknkc07WNnGfj7yD2J0MaFNg08=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=WiiB0DzKmXATkjyent5wpeuLVpkqN/L8dArp4fORIc4NucW4dHfTHGcctLELV7hDF0N9LKAGGKYzBr5JyTSe/hIgjKG/lExqqKPN+e4ziijy1CNopAdHtSmBruGV3g626h6NkbDinzs2LKe9qk3opYE8xaf7in8wYQUtAfWIWsM= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=BGOeF8yy; arc=none smtp.client-ip=209.85.208.43 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="BGOeF8yy" Received: by mail-ed1-f43.google.com with SMTP id 4fb4d7f45d1cf-5cb615671acso1368923a12.1; Mon, 21 Oct 2024 12:53:27 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1729540406; x=1730145206; darn=vger.kernel.org; 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=0QJFX4ZiUvU/gkiEPA3cTN5cC96Exsyal6fVxhijVGg=; b=BGOeF8yy8aRlubFFCR+f7ollVhufN5s3sRTu4WmZLdCNA+OOkxAPRWJ2XdiaiiCg5n ypL5onfWnpQnRcdD8w0nwiL+BoRYn+flIAsyvk5j7wEZZmntRhi5Wtjohsuian+jcsri 8oP8AZArBIEZhSRcfW//gs8HHQz5+6/oqg/hLdjI3idLFdJgidefRNeoU5hImLcIjH7k m5OOCv6T7jvNX6oXmX9LxaiTbmXfi+EoHZ4os7rlEsi2w8TUHx1iikuRoD+E5o6cGPvm wTPEgaxqekRpM1z7qlpkSoWspDUVtJghT8ryviSrl+XrOEzJK0Rud68Z3rDzIK4EkCW4 wh1w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1729540406; x=1730145206; 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=0QJFX4ZiUvU/gkiEPA3cTN5cC96Exsyal6fVxhijVGg=; b=bzi6PcRXTbEkrc0wnXLhzuMmkwZe3ln5+iKQlag0XNn0YsuEry9rst92+A663baPRf soda9C8oRqPe0dguFoBLd3RT3DAY9SYDQsQSFNkzrtn9yRmFvhCcSqttn/FP3bd2gi8I X4D5efGIEljt/cjaBw0zdxU/+goM3TG0hgfmYqKHacJHyVRZZp3AYqlRfeztd9hKWHSC C4he7VhbvD7zqtHDznAa0AnY55bXJ1zvPbWNEGA0EWQfh6opmZf2HMin05nxHUOaxuKp T9kABoGY0m1hsZsRktC3/V/vNjn2RpNsTOKbn++r1+77mCRniVX4anWgI6b6I5QsrIJo m6Tg== X-Forwarded-Encrypted: i=1; AJvYcCVOoqMyI1lcaPUqKR4mDQEM3Fq/cpwvxWOYG0UW4GaHfzFW1CPB4ApLTusn1ag3NycQK5iKJdO86GSpK3dS@vger.kernel.org, AJvYcCVUlNNCgWJoIO/cvgBrMRqCrFA2PfKaD0nQMvRPNx/AZAHX73ips9FSsTgdM+xpuT3Rz65V5Cbca23q@vger.kernel.org, AJvYcCXrawjmF+LqCTWgpqVBfJhXBZDZZmG7ndLmXvO8MkKfs6A9+L6NmIiO+O4TVXjqFATEc1KxguBAR8hd@vger.kernel.org X-Gm-Message-State: AOJu0YyDbWvy4LtMnc4T3e3WG63mFBfXFzTOdcLaeuM2i+omySlsO991 A2pdZ+nR9aGvArtw64qrGQd+p2a4xRZUxeoWSECA7uVWDlfMgFrE X-Google-Smtp-Source: AGHT+IFwyqbRuZ9aFFw17AD30AfocCUP7M2gHGfhoZMs/40pJWnaeeIEOI7KURZ7lhwkqAT4SVm19A== X-Received: by 2002:a05:6402:350d:b0:5c9:48df:713c with SMTP id 4fb4d7f45d1cf-5ca0ac439c4mr14103571a12.2.1729540406326; Mon, 21 Oct 2024 12:53:26 -0700 (PDT) Received: from vamoirid-laptop.. ([2a04:ee41:82:7577:9cf6:f1e5:ce2b:ea6b]) by smtp.googlemail.com with ESMTPSA id 4fb4d7f45d1cf-5cb66c6b12dsm2338702a12.77.2024.10.21.12.53.25 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 21 Oct 2024 12:53:25 -0700 (PDT) From: Vasileios Amoiridis To: jic23@kernel.org, lars@metafoo.de, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, andriy.shevchenko@linux.intel.com Cc: vassilisamir@gmail.com, anshulusr@gmail.com, gustavograzs@gmail.com, linux-iio@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 03/13] iio: chemical: bme680: avoid using camel case Date: Mon, 21 Oct 2024 21:53:06 +0200 Message-ID: <20241021195316.58911-4-vassilisamir@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20241021195316.58911-1-vassilisamir@gmail.com> References: <20241021195316.58911-1-vassilisamir@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Rename camel case variable, as checkpatch.pl complains. While at it, fix also the indentation of the array for readability. Signed-off-by: Vasileios Amoiridis --- drivers/iio/chemical/bme680_core.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/drivers/iio/chemical/bme680_core.c b/drivers/iio/chemical/bme6= 80_core.c index 0b96534c6867..d228f90b4dc6 100644 --- a/drivers/iio/chemical/bme680_core.c +++ b/drivers/iio/chemical/bme680_core.c @@ -438,15 +438,15 @@ static u32 bme680_compensate_gas(struct bme680_data *= data, u16 gas_res_adc, u32 calc_gas_res; =20 /* Look up table for the possible gas range values */ - static const u32 lookupTable[16] =3D {2147483647u, 2147483647u, - 2147483647u, 2147483647u, 2147483647u, - 2126008810u, 2147483647u, 2130303777u, - 2147483647u, 2147483647u, 2143188679u, - 2136746228u, 2147483647u, 2126008810u, - 2147483647u, 2147483647u}; + static const u32 lookup_table[16] =3D { + 2147483647u, 2147483647u, 2147483647u, 2147483647u, + 2147483647u, 2126008810u, 2147483647u, 2130303777u, + 2147483647u, 2147483647u, 2143188679u, 2136746228u, + 2147483647u, 2126008810u, 2147483647u, 2147483647u + }; 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([2a04:ee41:82:7577:9cf6:f1e5:ce2b:ea6b]) by smtp.googlemail.com with ESMTPSA id 4fb4d7f45d1cf-5cb66c6b12dsm2338702a12.77.2024.10.21.12.53.26 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 21 Oct 2024 12:53:27 -0700 (PDT) From: Vasileios Amoiridis To: jic23@kernel.org, lars@metafoo.de, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, andriy.shevchenko@linux.intel.com Cc: vassilisamir@gmail.com, anshulusr@gmail.com, gustavograzs@gmail.com, linux-iio@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 04/13] iio: chemical: bme680: refactorize set_mode() mode Date: Mon, 21 Oct 2024 21:53:07 +0200 Message-ID: <20241021195316.58911-5-vassilisamir@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20241021195316.58911-1-vassilisamir@gmail.com> References: <20241021195316.58911-1-vassilisamir@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Refactorize the set_mode() function to use an external enum that describes the possible modes of the BME680 device instead of using true/false variables for selecting SLEEPING/FORCED mode. Signed-off-by: Vasileios Amoiridis --- drivers/iio/chemical/bme680_core.c | 30 +++++++++++++----------------- 1 file changed, 13 insertions(+), 17 deletions(-) diff --git a/drivers/iio/chemical/bme680_core.c b/drivers/iio/chemical/bme6= 80_core.c index d228f90b4dc6..9002519d2c33 100644 --- a/drivers/iio/chemical/bme680_core.c +++ b/drivers/iio/chemical/bme680_core.c @@ -95,6 +95,11 @@ struct bme680_calib { s8 range_sw_err; }; =20 +enum bme680_op_mode { + BME680_SLEEP, + BME680_FORCED, +}; + struct bme680_data { struct regmap *regmap; struct bme680_calib bme680; @@ -502,23 +507,16 @@ static u8 bme680_calc_heater_dur(u16 dur) return durval; } =20 -static int bme680_set_mode(struct bme680_data *data, bool mode) +static int bme680_set_mode(struct bme680_data *data, enum bme680_op_mode m= ode) { struct device *dev =3D regmap_get_device(data->regmap); int ret; =20 - if (mode) { - ret =3D regmap_write_bits(data->regmap, BME680_REG_CTRL_MEAS, - BME680_MODE_MASK, BME680_MODE_FORCED); - if (ret < 0) - dev_err(dev, "failed to set forced mode\n"); 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Signed-off-by: Vasileios Amoiridis --- drivers/iio/chemical/bme680_core.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/iio/chemical/bme680_core.c b/drivers/iio/chemical/bme6= 80_core.c index 9002519d2c33..2ff85e29bfc1 100644 --- a/drivers/iio/chemical/bme680_core.c +++ b/drivers/iio/chemical/bme680_core.c @@ -544,7 +544,7 @@ static int bme680_wait_for_eoc(struct bme680_data *data) data->oversampling_humid) * 1936) + (477 * 4) + (477 * 5) + 1000 + (data->heater_dur * 1000); =20 - usleep_range(wait_eoc_us, wait_eoc_us + 100); + fsleep(wait_eoc_us); =20 ret =3D regmap_read(data->regmap, BME680_REG_MEAS_STAT_0, &data->check); if (ret) { @@ -890,7 +890,7 @@ int bme680_core_probe(struct device *dev, struct regmap= *regmap, if (ret < 0) return dev_err_probe(dev, ret, "Failed to reset chip\n"); =20 - usleep_range(BME680_STARTUP_TIME_US, BME680_STARTUP_TIME_US + 1000); + fsleep(BME680_STARTUP_TIME_US); =20 ret =3D regmap_read(regmap, BME680_REG_CHIP_ID, &data->check); if (ret < 0) --=20 2.43.0 From nobody Tue Nov 26 04:47:02 2024 Received: from mail-wm1-f45.google.com (mail-wm1-f45.google.com [209.85.128.45]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id A1CFC1FDF9E; Mon, 21 Oct 2024 19:53:34 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.128.45 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729540416; cv=none; b=k+1xo1LSyqgU93xLTidHC51OBhH8s60YJ1RXWGIpk4Osm+qz9T8voV95bJDz/neggvmYsm2n4GNjjzx0Jm2jzQhWwnNQJ7Xcl053uCy7h9OrytBqJMuPKbQS8OsD9kJo4KLGW8HsGhSWYL7HZemZFB5kfZCvwsEOlBW5NQVcysE= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729540416; c=relaxed/simple; bh=vyQi9ZTVnpbOKfBHPIcB5RMs9bY6xG8O3WtbCaEM738=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=hUAYXdxuGdxYR4Rt3EaIDB6yVM6//H1SFRM7K+sWsrfY9KUNOT7/YChJODZV4P9nwyflOHppQ9cBFQjS5ig+YcgGYUoxsgU4Ewu0TCB0r81yY5ySIObLPSt21s2CQbpxNa5NRIhzQSl0TLpSyvg6dJTxFc06DUSigSrpiboqzww= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=BEMCesX0; arc=none smtp.client-ip=209.85.128.45 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="BEMCesX0" Received: by mail-wm1-f45.google.com with SMTP id 5b1f17b1804b1-43168d9c6c9so27937785e9.3; Mon, 21 Oct 2024 12:53:34 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1729540413; x=1730145213; darn=vger.kernel.org; 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=40gsg2Bc+Fe/tDyauIqUSjZTx45Ksw8BC4m72iFnA2c=; b=BEMCesX0k2Gn5LaEO6b4nbO/eK//D9g/T/HWbvqHJeTGcx0QrpZqwBU7zy40GwbJ57 upMJUu1ZhwpzJwXJFFFNAeZ7ps5ukBui28WTVtHdyJiZdVbsmEZqN6/TswMDUOUtxG/q o9z1axftrzsvWjh8n5ZgYiR4F0tskSU79KXiISPOrNK1HgXAu7PrbaAIW9U4PdViHqfy 2kFwkMPPAX3K+hRde+zG1iN93dbKEXfs2YWTQKXuIjApYKy143yQ4V6mHZiLKKfcTd+d oDtA0TcBMP3lUwLcAKTWQ5eGtZlzhbaW3mLvCZnvL1pRlJiBzz169vm0irscBRPt/MIn nP8g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1729540413; x=1730145213; 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=40gsg2Bc+Fe/tDyauIqUSjZTx45Ksw8BC4m72iFnA2c=; b=ChUTOPiCkHkBKvppsIrPz+OOxoBAcCuh4m5bzyBipwMWv7GIRhtD36/KaA+AouwkE3 WGnDJdtjS+zKJzApdeF3pGJ5ukjxzjPtDXkW7Kcjhz9D/t1YMKkF3l3mpmuN5N0Nl3/m Zh5o7ABJ7TuewpLZlqk1r3oNXUns0TPNzSlUuCBb34AynwHUsSMIN5R9KUjBMVmtF6an 9Y9FcMA22o7EWXMmavnuh+9Z2Ai4QejR2VCqR4Vrbaktl95m8xjtwNXHjmsdmDc+21B7 ueDuBim0QfBPaEloHYgZF8NEjs1qeYvcjls6JKzYeCKPv+xh1v4zKdUKtB5a+VRMJuIL w16A== X-Forwarded-Encrypted: i=1; AJvYcCU89eSX2k9DGmSTf7OT5t1Hd9woFeb8CVkQhhCxb0r4KRT1FQYjnhxa4PThQU3im5L/fSWso8e3Axp02w48@vger.kernel.org, AJvYcCVzCTxZCS8cHW/dJJaCTWL+P675IJ3rIzphF1+DWIH0S8dyLqmkrB1XmJrqLWmtUvXkrjCRj8hKveM5@vger.kernel.org, AJvYcCXdlJDOXAbPO6nfh4ZSYfx2vXeD66Fk33hchK9P7z0VXEBPS6YfGkNvq6cK93jQM6R6oRLTnIsAYEWC@vger.kernel.org X-Gm-Message-State: AOJu0Ywr0OIDInQaijHYYKkj1Kfm7CEUzwXqCYyaeAdUwQ4yFNJauNf8 jht/3elL2tTdQnOB6OtFEOASqoS9ltqHIeFW2UMbX5PzcBbwC8s+ybwMRA== X-Google-Smtp-Source: AGHT+IHwj9o1i1V0HMBSOt42E/or9FfHo0hiuTGCPj37k6RUpifDaLmfQVgHNwaRTJjOgzVQXzmY3Q== X-Received: by 2002:a5d:67cd:0:b0:37d:4318:d8e1 with SMTP id ffacd0b85a97d-37eab6e3db3mr7563883f8f.23.1729540412883; Mon, 21 Oct 2024 12:53:32 -0700 (PDT) Received: from vamoirid-laptop.. ([2a04:ee41:82:7577:9cf6:f1e5:ce2b:ea6b]) by smtp.googlemail.com with ESMTPSA id 4fb4d7f45d1cf-5cb66c6b12dsm2338702a12.77.2024.10.21.12.53.30 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 21 Oct 2024 12:53:31 -0700 (PDT) From: Vasileios Amoiridis To: jic23@kernel.org, lars@metafoo.de, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, andriy.shevchenko@linux.intel.com Cc: vassilisamir@gmail.com, anshulusr@gmail.com, gustavograzs@gmail.com, linux-iio@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 06/13] iio: chemical: bme680: Fix indentation and unnecessary spaces Date: Mon, 21 Oct 2024 21:53:09 +0200 Message-ID: <20241021195316.58911-7-vassilisamir@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20241021195316.58911-1-vassilisamir@gmail.com> References: <20241021195316.58911-1-vassilisamir@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Fix indentation issues, line breaking and unnecessary spaces reported by checkpatch.pl. Signed-off-by: Vasileios Amoiridis --- drivers/iio/chemical/bme680_core.c | 21 +++++++++------------ 1 file changed, 9 insertions(+), 12 deletions(-) diff --git a/drivers/iio/chemical/bme680_core.c b/drivers/iio/chemical/bme6= 80_core.c index 2ff85e29bfc1..2ad427f5deb4 100644 --- a/drivers/iio/chemical/bme680_core.c +++ b/drivers/iio/chemical/bme680_core.c @@ -229,7 +229,7 @@ static int bme680_read_calib(struct bme680_data *data, calib->res_heat_val =3D data->bme680_cal_buf_3[RES_HEAT_VAL]; =20 calib->res_heat_range =3D FIELD_GET(BME680_RHRANGE_MASK, - data->bme680_cal_buf_3[RES_HEAT_RANGE]); + data->bme680_cal_buf_3[RES_HEAT_RANGE]); =20 calib->range_sw_err =3D FIELD_GET(BME680_RSERROR_MASK, data->bme680_cal_buf_3[RANGE_SW_ERR]); @@ -450,12 +450,12 @@ static u32 bme680_compensate_gas(struct bme680_data *= data, u16 gas_res_adc, 2147483647u, 2126008810u, 2147483647u, 2147483647u }; =20 - var1 =3D ((1340 + (5 * (s64) calib->range_sw_err)) * - ((s64)lookup_table[gas_range])) >> 16; + var1 =3D ((1340LL + (5 * calib->range_sw_err)) * + (lookup_table[gas_range])) >> 16; var2 =3D ((gas_res_adc << 15) - 16777216) + var1; var3 =3D ((125000 << (15 - gas_range)) * var1) >> 9; var3 +=3D (var2 >> 1); - calc_gas_res =3D div64_s64(var3, (s64) var2); + calc_gas_res =3D div64_s64(var3, (s64)var2); =20 return calc_gas_res; } @@ -473,7 +473,7 @@ static u8 bme680_calc_heater_res(struct bme680_data *da= ta, u16 temp) if (temp > 400) /* Cap temperature */ temp =3D 400; =20 - var1 =3D (((s32) BME680_AMB_TEMP * calib->par_gh3) / 1000) * 256; + var1 =3D (((s32)BME680_AMB_TEMP * calib->par_gh3) / 1000) * 256; var2 =3D (calib->par_gh1 + 784) * (((((calib->par_gh2 + 154009) * temp * 5) / 100) + 3276800) / 10); @@ -569,9 +569,8 @@ static int bme680_chip_config(struct bme680_data *data) int ret; u8 osrs; =20 - osrs =3D FIELD_PREP( - BME680_OSRS_HUMIDITY_MASK, - bme680_oversampling_to_reg(data->oversampling_humid)); + osrs =3D FIELD_PREP(BME680_OSRS_HUMIDITY_MASK, + bme680_oversampling_to_reg(data->oversampling_humid)); /* * Highly recommended to set oversampling of humidity before * temperature/pressure oversampling. @@ -585,8 +584,7 @@ static int bme680_chip_config(struct bme680_data *data) =20 /* IIR filter settings */ ret =3D regmap_update_bits(data->regmap, BME680_REG_CONFIG, - BME680_FILTER_MASK, - BME680_FILTER_COEFF_VAL); 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([2a04:ee41:82:7577:9cf6:f1e5:ce2b:ea6b]) by smtp.googlemail.com with ESMTPSA id 4fb4d7f45d1cf-5cb66c6b12dsm2338702a12.77.2024.10.21.12.53.32 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 21 Oct 2024 12:53:34 -0700 (PDT) From: Vasileios Amoiridis To: jic23@kernel.org, lars@metafoo.de, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, andriy.shevchenko@linux.intel.com Cc: vassilisamir@gmail.com, anshulusr@gmail.com, gustavograzs@gmail.com, linux-iio@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 07/13] iio: chemical: bme680: generalize read_*() functions Date: Mon, 21 Oct 2024 21:53:10 +0200 Message-ID: <20241021195316.58911-8-vassilisamir@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20241021195316.58911-1-vassilisamir@gmail.com> References: <20241021195316.58911-1-vassilisamir@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Remove the IIO specific scaling measurement units from the read functions and add them inside the ->read_raw() function to keep the read_*() generic. This way they can be used in other parts of the driver. Signed-off-by: Vasileios Amoiridis --- drivers/iio/chemical/bme680_core.c | 68 ++++++++++++++++++------------ 1 file changed, 40 insertions(+), 28 deletions(-) diff --git a/drivers/iio/chemical/bme680_core.c b/drivers/iio/chemical/bme6= 80_core.c index 2ad427f5deb4..c79ba6d1ece8 100644 --- a/drivers/iio/chemical/bme680_core.c +++ b/drivers/iio/chemical/bme680_core.c @@ -644,23 +644,20 @@ static int bme680_gas_config(struct bme680_data *data) return ret; } =20 -static int bme680_read_temp(struct bme680_data *data, int *val) +static int bme680_read_temp(struct bme680_data *data, s16 *comp_temp) { int ret; u32 adc_temp; - s16 comp_temp; =20 ret =3D bme680_read_temp_adc(data, &adc_temp); if (ret) return ret; =20 - comp_temp =3D bme680_compensate_temp(data, adc_temp); - *val =3D comp_temp * 10; /* Centidegrees to millidegrees */ - return IIO_VAL_INT; + *comp_temp =3D bme680_compensate_temp(data, adc_temp); + return 0; } =20 -static int bme680_read_press(struct bme680_data *data, - int *val, int *val2) +static int bme680_read_press(struct bme680_data *data, u32 *comp_press) { int ret; u32 adc_press; @@ -674,16 +671,14 @@ static int bme680_read_press(struct bme680_data *data, if (ret) return ret; =20 - *val =3D bme680_compensate_press(data, adc_press, t_fine); - *val2 =3D 1000; - return IIO_VAL_FRACTIONAL; + *comp_press =3D bme680_compensate_press(data, adc_press, t_fine); + return 0; } =20 -static int bme680_read_humid(struct bme680_data *data, - int *val, int *val2) +static int bme680_read_humid(struct bme680_data *data, u32 *comp_humidity) { int ret; - u32 adc_humidity, comp_humidity; + u32 adc_humidity; s32 t_fine; =20 ret =3D bme680_get_t_fine(data, &t_fine); @@ -694,15 +689,11 @@ static int bme680_read_humid(struct bme680_data *data, if (ret) return ret; =20 - comp_humidity =3D bme680_compensate_humid(data, adc_humidity, t_fine); - - *val =3D comp_humidity; - *val2 =3D 1000; - return IIO_VAL_FRACTIONAL; + *comp_humidity =3D bme680_compensate_humid(data, adc_humidity, t_fine); + return 0; } =20 -static int bme680_read_gas(struct bme680_data *data, - int *val) +static int bme680_read_gas(struct bme680_data *data, int *comp_gas_res) { struct device *dev =3D regmap_get_device(data->regmap); int ret; @@ -737,9 +728,8 @@ static int bme680_read_gas(struct bme680_data *data, } =20 gas_range =3D FIELD_GET(BME680_GAS_RANGE_MASK, gas_regs_val); - - *val =3D bme680_compensate_gas(data, adc_gas_res, gas_range); - return IIO_VAL_INT; + *comp_gas_res =3D bme680_compensate_gas(data, adc_gas_res, gas_range); + return 0; } =20 static int bme680_read_raw(struct iio_dev *indio_dev, @@ -747,7 +737,7 @@ static int bme680_read_raw(struct iio_dev *indio_dev, int *val, int *val2, long mask) { struct bme680_data *data =3D iio_priv(indio_dev); - int ret; + int chan_val, ret; =20 guard(mutex)(&data->lock); =20 @@ -763,13 +753,35 @@ static int bme680_read_raw(struct iio_dev *indio_dev, case IIO_CHAN_INFO_PROCESSED: switch (chan->type) { case IIO_TEMP: - return bme680_read_temp(data, val); + ret =3D bme680_read_temp(data, (s16 *)&chan_val); + if (ret) + return ret; + + *val =3D chan_val * 10; + return IIO_VAL_INT; case IIO_PRESSURE: - return bme680_read_press(data, val, val2); + ret =3D bme680_read_press(data, &chan_val); 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([2a04:ee41:82:7577:9cf6:f1e5:ce2b:ea6b]) by smtp.googlemail.com with ESMTPSA id 4fb4d7f45d1cf-5cb66c6b12dsm2338702a12.77.2024.10.21.12.53.35 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 21 Oct 2024 12:53:37 -0700 (PDT) From: Vasileios Amoiridis To: jic23@kernel.org, lars@metafoo.de, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, andriy.shevchenko@linux.intel.com Cc: vassilisamir@gmail.com, anshulusr@gmail.com, gustavograzs@gmail.com, linux-iio@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 08/13] iio: chemical: bme680: Add SCALE and RAW channels Date: Mon, 21 Oct 2024 21:53:11 +0200 Message-ID: <20241021195316.58911-9-vassilisamir@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20241021195316.58911-1-vassilisamir@gmail.com> References: <20241021195316.58911-1-vassilisamir@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Add SCALE,RAW channels to the device. Even though PROCESSED should be kept for backwards compatibility add comment to avoid using it if the value is not actually reported in IIO values. Signed-off-by: Vasileios Amoiridis --- drivers/iio/chemical/bme680_core.c | 51 ++++++++++++++++++++++++++++++ 1 file changed, 51 insertions(+) diff --git a/drivers/iio/chemical/bme680_core.c b/drivers/iio/chemical/bme6= 80_core.c index c79ba6d1ece8..e8098754a85f 100644 --- a/drivers/iio/chemical/bme680_core.c +++ b/drivers/iio/chemical/bme680_core.c @@ -143,17 +143,26 @@ EXPORT_SYMBOL_NS(bme680_regmap_config, IIO_BME680); static const struct iio_chan_spec bme680_channels[] =3D { { .type =3D IIO_TEMP, + /* PROCESSED maintained for ABI backwards compatibility */ .info_mask_separate =3D BIT(IIO_CHAN_INFO_PROCESSED) | + BIT(IIO_CHAN_INFO_RAW) | + BIT(IIO_CHAN_INFO_SCALE) | BIT(IIO_CHAN_INFO_OVERSAMPLING_RATIO), }, { .type =3D IIO_PRESSURE, + /* PROCESSED maintained for ABI backwards compatibility */ .info_mask_separate =3D BIT(IIO_CHAN_INFO_PROCESSED) | + BIT(IIO_CHAN_INFO_RAW) | + BIT(IIO_CHAN_INFO_SCALE) | BIT(IIO_CHAN_INFO_OVERSAMPLING_RATIO), }, { .type =3D IIO_HUMIDITYRELATIVE, + /* PROCESSED maintained for ABI backwards compatibility */ .info_mask_separate =3D BIT(IIO_CHAN_INFO_PROCESSED) | + BIT(IIO_CHAN_INFO_RAW) | + BIT(IIO_CHAN_INFO_SCALE) | BIT(IIO_CHAN_INFO_OVERSAMPLING_RATIO), }, { @@ -785,6 +794,48 @@ static int bme680_read_raw(struct iio_dev *indio_dev, default: return -EINVAL; } + case IIO_CHAN_INFO_RAW: + switch (chan->type) { + case IIO_TEMP: + ret =3D bme680_read_temp(data, (s16 *)&chan_val); + if (ret) + return ret; + + *val =3D chan_val; + return IIO_VAL_INT; + case IIO_PRESSURE: + ret =3D bme680_read_press(data, &chan_val); + if (ret) + return ret; + + *val =3D chan_val; + return IIO_VAL_INT; + case IIO_HUMIDITYRELATIVE: + ret =3D bme680_read_humid(data, &chan_val); + if (ret) + return ret; + + *val =3D chan_val; + return IIO_VAL_INT; + default: + return -EINVAL; + } + case IIO_CHAN_INFO_SCALE: + switch (chan->type) { + case IIO_TEMP: + *val =3D 10; + return IIO_VAL_INT; + case IIO_PRESSURE: + *val =3D 1; + *val2 =3D 1000; + return IIO_VAL_FRACTIONAL; + case IIO_HUMIDITYRELATIVE: + *val =3D 1; + *val2 =3D 1000; + return IIO_VAL_FRACTIONAL; + default: + return -EINVAL; + } case IIO_CHAN_INFO_OVERSAMPLING_RATIO: switch (chan->type) { case IIO_TEMP: --=20 2.43.0 From nobody Tue Nov 26 04:47:02 2024 Received: from mail-wr1-f41.google.com (mail-wr1-f41.google.com [209.85.221.41]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7B30A1FEFA5; 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([2a04:ee41:82:7577:9cf6:f1e5:ce2b:ea6b]) by smtp.googlemail.com with ESMTPSA id 4fb4d7f45d1cf-5cb66c6b12dsm2338702a12.77.2024.10.21.12.53.37 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 21 Oct 2024 12:53:38 -0700 (PDT) From: Vasileios Amoiridis To: jic23@kernel.org, lars@metafoo.de, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, andriy.shevchenko@linux.intel.com Cc: vassilisamir@gmail.com, anshulusr@gmail.com, gustavograzs@gmail.com, linux-iio@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 09/13] iio: chemical: bme680: Add triggered buffer support Date: Mon, 21 Oct 2024 21:53:12 +0200 Message-ID: <20241021195316.58911-10-vassilisamir@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20241021195316.58911-1-vassilisamir@gmail.com> References: <20241021195316.58911-1-vassilisamir@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Add triggered buffer and soft timestamp support. The available scan mask enables all the channels of the sensor in order to follow the operation of the sensor. The sensor basically starts to capture from all channels as long as it enters into FORCED mode. The bulk read, reads a total of 15 registers from the sensor, 0x1D..0x2B. Even though some of those registers are not reported in the register map of the device, this is how the BME680 Sensor API [1] proposes to do it. This allows to have one bulk read instead of multiple ones. Link: https://github.com/boschsensortec/BME68x_SensorAPI/blob/v4.4.8/bme68x= .c#L1200 Signed-off-by: Vasileios Amoiridis --- drivers/iio/chemical/Kconfig | 2 + drivers/iio/chemical/bme680.h | 3 + drivers/iio/chemical/bme680_core.c | 137 ++++++++++++++++++++++++++++- 3 files changed, 141 insertions(+), 1 deletion(-) diff --git a/drivers/iio/chemical/Kconfig b/drivers/iio/chemical/Kconfig index 678a6adb9a75..447b205f57bd 100644 --- a/drivers/iio/chemical/Kconfig +++ b/drivers/iio/chemical/Kconfig @@ -50,6 +50,8 @@ config BME680 select REGMAP select BME680_I2C if I2C select BME680_SPI if SPI + select IIO_BUFFER + select IIO_TRIGGERED_BUFFER help Say yes here to build support for Bosch Sensortec BME680 sensor with temperature, pressure, humidity and gas sensing capability. diff --git a/drivers/iio/chemical/bme680.h b/drivers/iio/chemical/bme680.h index f5be4516dde7..574877bc51c5 100644 --- a/drivers/iio/chemical/bme680.h +++ b/drivers/iio/chemical/bme680.h @@ -68,6 +68,9 @@ /* Datasheet Section 1.1, Table 1 */ #define BME680_STARTUP_TIME_US 2000 =20 +#define BME680_NUM_CHANNELS 4 +#define BME680_NUM_BULK_READ_REGS 15 + /* Calibration Parameters */ #define BME680_T2_LSB_REG 0x8A #define BME680_H2_MSB_REG 0xE1 diff --git a/drivers/iio/chemical/bme680_core.c b/drivers/iio/chemical/bme6= 80_core.c index e8098754a85f..7bf4daa35ba5 100644 --- a/drivers/iio/chemical/bme680_core.c +++ b/drivers/iio/chemical/bme680_core.c @@ -16,8 +16,11 @@ #include #include =20 +#include #include #include +#include +#include =20 #include =20 @@ -100,6 +103,13 @@ enum bme680_op_mode { BME680_FORCED, }; =20 +enum bme680_scan { + BME680_TEMP, + BME680_PRESS, + BME680_HUMID, + BME680_GAS, +}; + struct bme680_data { struct regmap *regmap; struct bme680_calib bme680; @@ -110,8 +120,13 @@ struct bme680_data { u16 heater_dur; u16 heater_temp; =20 + struct { + s32 chan[4]; + aligned_s64 ts; + } scan; + union { - u8 buf[3]; + u8 buf[BME680_NUM_BULK_READ_REGS]; unsigned int check; __be16 be16; u8 bme680_cal_buf_1[BME680_CALIB_RANGE_1_LEN]; @@ -148,6 +163,13 @@ static const struct iio_chan_spec bme680_channels[] = =3D { BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE) | BIT(IIO_CHAN_INFO_OVERSAMPLING_RATIO), + .scan_index =3D 0, + .scan_type =3D { + .sign =3D 's', + .realbits =3D 16, + .storagebits =3D 16, + .endianness =3D IIO_CPU, + }, }, { .type =3D IIO_PRESSURE, @@ -156,6 +178,13 @@ static const struct iio_chan_spec bme680_channels[] = =3D { BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE) | BIT(IIO_CHAN_INFO_OVERSAMPLING_RATIO), + .scan_index =3D 1, + .scan_type =3D { + .sign =3D 'u', + .realbits =3D 32, + .storagebits =3D 32, + .endianness =3D IIO_CPU, + }, }, { .type =3D IIO_HUMIDITYRELATIVE, @@ -164,11 +193,26 @@ static const struct iio_chan_spec bme680_channels[] = =3D { BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE) | BIT(IIO_CHAN_INFO_OVERSAMPLING_RATIO), + .scan_index =3D 2, + .scan_type =3D { + .sign =3D 'u', + .realbits =3D 32, + .storagebits =3D 32, + .endianness =3D IIO_CPU, + }, }, { .type =3D IIO_RESISTANCE, .info_mask_separate =3D BIT(IIO_CHAN_INFO_PROCESSED), + .scan_index =3D 3, + .scan_type =3D { + .sign =3D 'u', + .realbits =3D 32, + .storagebits =3D 32, + .endianness =3D IIO_CPU, + }, }, + IIO_CHAN_SOFT_TIMESTAMP(4), }; =20 static int bme680_read_calib(struct bme680_data *data, @@ -918,6 +962,88 @@ static const struct iio_info bme680_info =3D { .attrs =3D &bme680_attribute_group, }; =20 +static const unsigned long bme680_avail_scan_masks[] =3D { + BIT(BME680_GAS) | BIT(BME680_HUMID) | BIT(BME680_PRESS) | BIT(BME680_TEMP= ), + 0 +}; + +static irqreturn_t bme680_trigger_handler(int irq, void *p) +{ + struct iio_poll_func *pf =3D p; + struct iio_dev *indio_dev =3D pf->indio_dev; + struct bme680_data *data =3D iio_priv(indio_dev); + struct device *dev =3D regmap_get_device(data->regmap); + u32 adc_temp, adc_press, adc_humid; + u16 adc_gas_res, gas_regs_val; + u8 gas_range; + s32 t_fine; + int ret; + + guard(mutex)(&data->lock); + + ret =3D bme680_set_mode(data, BME680_FORCED); + if (ret < 0) + goto out; + + ret =3D bme680_wait_for_eoc(data); + if (ret) + goto out; + + /* Burst read data regs */ + ret =3D regmap_bulk_read(data->regmap, BME680_REG_MEAS_STAT_0, + data->buf, sizeof(data->buf)); + if (ret) { + dev_err(dev, "failed to burst read sensor data\n"); + goto out; + } + if (data->buf[0] & BME680_GAS_MEAS_BIT) { + dev_err(dev, "gas measurement incomplete\n"); + goto out; + } + + /* Temperature calculations */ + adc_temp =3D FIELD_GET(BME680_MEAS_TRIM_MASK, get_unaligned_be24(&data->b= uf[5])); + if (adc_temp =3D=3D BME680_MEAS_SKIPPED) { + dev_err(dev, "reading temperature skipped\n"); + goto out; + } + data->scan.chan[0] =3D bme680_compensate_temp(data, adc_temp); + t_fine =3D bme680_calc_t_fine(data, adc_temp); + + /* Pressure calculations */ + adc_press =3D FIELD_GET(BME680_MEAS_TRIM_MASK, get_unaligned_be24(&data->= buf[2])); + if (adc_press =3D=3D BME680_MEAS_SKIPPED) { + dev_err(dev, "reading pressure skipped\n"); + goto out; + } + data->scan.chan[1] =3D bme680_compensate_press(data, adc_press, t_fine); + + /* Humidity calculations */ + adc_humid =3D get_unaligned_be16(&data->buf[8]); + if (adc_humid =3D=3D BME680_MEAS_SKIPPED) { + dev_err(dev, "reading humidity skipped\n"); + goto out; + } + data->scan.chan[2] =3D bme680_compensate_humid(data, adc_humid, t_fine); + + /* Gas calculations */ + gas_regs_val =3D get_unaligned_be16(&data->buf[13]); + adc_gas_res =3D FIELD_GET(BME680_ADC_GAS_RES, gas_regs_val); + if ((gas_regs_val & BME680_GAS_STAB_BIT) =3D=3D 0) { + dev_err(dev, "heater failed to reach the target temperature\n"); + goto out; + } + gas_range =3D FIELD_GET(BME680_GAS_RANGE_MASK, gas_regs_val); + data->scan.chan[3] =3D bme680_compensate_gas(data, adc_gas_res, gas_range= ); + + /* Push to buffer */ + iio_push_to_buffers_with_timestamp(indio_dev, &data->scan, + iio_get_time_ns(indio_dev)); +out: + iio_trigger_notify_done(indio_dev->trig); + return IRQ_HANDLED; +} + int bme680_core_probe(struct device *dev, struct regmap *regmap, const char *name) { @@ -936,6 +1062,7 @@ int bme680_core_probe(struct device *dev, struct regma= p *regmap, indio_dev->name =3D name; indio_dev->channels =3D bme680_channels; indio_dev->num_channels =3D ARRAY_SIZE(bme680_channels); + indio_dev->available_scan_masks =3D bme680_avail_scan_masks; indio_dev->info =3D &bme680_info; 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([2a04:ee41:82:7577:9cf6:f1e5:ce2b:ea6b]) by smtp.googlemail.com with ESMTPSA id 4fb4d7f45d1cf-5cb66c6b12dsm2338702a12.77.2024.10.21.12.53.39 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 21 Oct 2024 12:53:40 -0700 (PDT) From: Vasileios Amoiridis To: jic23@kernel.org, lars@metafoo.de, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, andriy.shevchenko@linux.intel.com Cc: vassilisamir@gmail.com, anshulusr@gmail.com, gustavograzs@gmail.com, linux-iio@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 10/13] iio: chemical: bme680: Add support for preheat current Date: Mon, 21 Oct 2024 21:53:13 +0200 Message-ID: <20241021195316.58911-11-vassilisamir@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20241021195316.58911-1-vassilisamir@gmail.com> References: <20241021195316.58911-1-vassilisamir@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Add functionality to inject a specified amount of current to the heating plate before the start of the gas measurement to allow the sensor to reach faster to the requested temperature. Signed-off-by: Vasileios Amoiridis --- drivers/iio/chemical/bme680.h | 1 + drivers/iio/chemical/bme680_core.c | 41 ++++++++++++++++++++++++++++++ 2 files changed, 42 insertions(+) diff --git a/drivers/iio/chemical/bme680.h b/drivers/iio/chemical/bme680.h index 574877bc51c5..e5d82a6d5b59 100644 --- a/drivers/iio/chemical/bme680.h +++ b/drivers/iio/chemical/bme680.h @@ -44,6 +44,7 @@ #define BME680_RHRANGE_MASK GENMASK(5, 4) #define BME680_REG_RES_HEAT_VAL 0x00 #define BME680_RSERROR_MASK GENMASK(7, 4) +#define BME680_REG_IDAC_HEAT_0 0x50 #define BME680_REG_RES_HEAT_0 0x5A #define BME680_REG_GAS_WAIT_0 0x64 #define BME680_ADC_GAS_RES GENMASK(15, 6) diff --git a/drivers/iio/chemical/bme680_core.c b/drivers/iio/chemical/bme6= 80_core.c index 7bf4daa35ba5..8c80a5f1ef9e 100644 --- a/drivers/iio/chemical/bme680_core.c +++ b/drivers/iio/chemical/bme680_core.c @@ -117,6 +117,7 @@ struct bme680_data { u8 oversampling_temp; u8 oversampling_press; u8 oversampling_humid; + u8 preheat_curr_mA; u16 heater_dur; u16 heater_temp; =20 @@ -213,6 +214,12 @@ static const struct iio_chan_spec bme680_channels[] = =3D { }, }, IIO_CHAN_SOFT_TIMESTAMP(4), + { + .type =3D IIO_CURRENT, + .info_mask_separate =3D BIT(IIO_CHAN_INFO_PROCESSED), + .output =3D 1, + .scan_index =3D -1, + }, }; =20 static int bme680_read_calib(struct bme680_data *data, @@ -560,6 +567,12 @@ static u8 bme680_calc_heater_dur(u16 dur) return durval; } =20 +/* Taken from datasheet, section 5.3.3 */ +static u8 bme680_calc_heater_preheat_current(u8 curr) +{ + return 8 * curr - 1; +} + static int bme680_set_mode(struct bme680_data *data, enum bme680_op_mode m= ode) { struct device *dev =3D regmap_get_device(data->regmap); @@ -658,6 +671,20 @@ static int bme680_chip_config(struct bme680_data *data) return 0; } =20 +static int bme680_preheat_curr_config(struct bme680_data *data, u8 val) +{ + struct device *dev =3D regmap_get_device(data->regmap); + u8 heatr_curr; + int ret; + + heatr_curr =3D bme680_calc_heater_preheat_current(val); + ret =3D regmap_write(data->regmap, BME680_REG_IDAC_HEAT_0, heatr_curr); + if (ret < 0) + dev_err(dev, "failed to write idac_heat_0 register\n"); + + return ret; +} + static int bme680_gas_config(struct bme680_data *data) { struct device *dev =3D regmap_get_device(data->regmap); @@ -686,6 +713,10 @@ static int bme680_gas_config(struct bme680_data *data) return ret; } =20 + ret =3D bme680_preheat_curr_config(data, data->preheat_curr_mA); + if (ret) + return ret; + /* Enable the gas sensor and select heater profile set-point 0 */ ret =3D regmap_update_bits(data->regmap, BME680_REG_CTRL_GAS_1, BME680_RUN_GAS_MASK | BME680_NB_CONV_MASK, @@ -937,6 +968,15 @@ static int bme680_write_raw(struct iio_dev *indio_dev, =20 return bme680_chip_config(data); } + case IIO_CHAN_INFO_PROCESSED: + { + switch (chan->type) { + case IIO_CURRENT: + return bme680_preheat_curr_config(data, (u8)val); + default: + return -EINVAL; + } + } default: return -EINVAL; } @@ -1072,6 +1112,7 @@ int bme680_core_probe(struct device *dev, struct regm= ap *regmap, data->oversampling_temp =3D 8; /* 8X oversampling rate */ data->heater_temp =3D 320; 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([2a04:ee41:82:7577:9cf6:f1e5:ce2b:ea6b]) by smtp.googlemail.com with ESMTPSA id 4fb4d7f45d1cf-5cb66c6b12dsm2338702a12.77.2024.10.21.12.53.41 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 21 Oct 2024 12:53:41 -0700 (PDT) From: Vasileios Amoiridis To: jic23@kernel.org, lars@metafoo.de, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, andriy.shevchenko@linux.intel.com Cc: vassilisamir@gmail.com, anshulusr@gmail.com, gustavograzs@gmail.com, linux-iio@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 11/13] dt-bindings: iio: add binding for BME680 driver Date: Mon, 21 Oct 2024 21:53:14 +0200 Message-ID: <20241021195316.58911-12-vassilisamir@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20241021195316.58911-1-vassilisamir@gmail.com> References: <20241021195316.58911-1-vassilisamir@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Add dt-binding for BME680 gas sensor device. The device incorporates as well temperature, pressure and relative humidity sensors. Signed-off-by: Vasileios Amoiridis --- .../bindings/iio/chemical/bosch,bme680.yaml | 64 +++++++++++++++++++ .../devicetree/bindings/trivial-devices.yaml | 2 - 2 files changed, 64 insertions(+), 2 deletions(-) create mode 100644 Documentation/devicetree/bindings/iio/chemical/bosch,bm= e680.yaml diff --git a/Documentation/devicetree/bindings/iio/chemical/bosch,bme680.ya= ml b/Documentation/devicetree/bindings/iio/chemical/bosch,bme680.yaml new file mode 100644 index 000000000000..e54df3afa7b2 --- /dev/null +++ b/Documentation/devicetree/bindings/iio/chemical/bosch,bme680.yaml @@ -0,0 +1,64 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/iio/chemical/bosch,bme680.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Bosch BME680 Gas sensor + +maintainers: + - Vasileios Amoiridis + +description: + BME680 is a gas sensor which combines relative humidity, barometric pres= sure, + ambient temperature and gas (VOC - Volatile Organic Compounds) measureme= nts. + + https://www.bosch-sensortec.com/media/boschsensortec/downloads/datasheet= s/bst-bme680-ds001.pdf + +properties: + compatible: + const: bosch,bme680 + + reg: + maxItems: 1 + + vdd-supply: true + vddio-supply: true + +required: + - compatible + - reg + - vdd-supply + - vddio-supply + +allOf: + - $ref: /schemas/spi/spi-peripheral-props.yaml# + +unevaluatedProperties: false + +examples: + - | + i2c { + #address-cells =3D <1>; + #size-cells =3D <0>; + + bme680@77 { + compatible =3D "bosch,bme680"; + reg =3D <0x77>; + vddio-supply =3D <&vddio>; + vdd-supply =3D <&vdd>; + }; + }; + - | + spi { + #address-cells =3D <1>; + #size-cells =3D <0>; + + bme680@0 { + compatible =3D "bosch,bme680"; + reg =3D <0>; + spi-max-frequency =3D <500000>; + vddio-supply =3D <&vddio>; + vdd-supply =3D <&vdd>; + }; + }; diff --git a/Documentation/devicetree/bindings/trivial-devices.yaml b/Docum= entation/devicetree/bindings/trivial-devices.yaml index 0108d7507215..3d9c08ed7bce 100644 --- a/Documentation/devicetree/bindings/trivial-devices.yaml +++ b/Documentation/devicetree/bindings/trivial-devices.yaml @@ -55,8 +55,6 @@ properties: - atmel,atsha204a # BPA-RS600: Power Supply - blutek,bpa-rs600 - # Bosch Sensortec pressure, temperature, humididty and VOC sen= sor - - bosch,bme680 # CM32181: Ambient Light Sensor - capella,cm32181 # CM3232: Ambient Light Sensor --=20 2.43.0 From nobody Tue Nov 26 04:47:02 2024 Received: from mail-lf1-f50.google.com (mail-lf1-f50.google.com [209.85.167.50]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 769BE1FF03F; 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([2a04:ee41:82:7577:9cf6:f1e5:ce2b:ea6b]) by smtp.googlemail.com with ESMTPSA id 4fb4d7f45d1cf-5cb66c6b12dsm2338702a12.77.2024.10.21.12.53.42 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 21 Oct 2024 12:53:43 -0700 (PDT) From: Vasileios Amoiridis To: jic23@kernel.org, lars@metafoo.de, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, andriy.shevchenko@linux.intel.com Cc: vassilisamir@gmail.com, anshulusr@gmail.com, gustavograzs@gmail.com, linux-iio@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 12/13] iio: chemical: bme680: add regulators Date: Mon, 21 Oct 2024 21:53:15 +0200 Message-ID: <20241021195316.58911-13-vassilisamir@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20241021195316.58911-1-vassilisamir@gmail.com> References: <20241021195316.58911-1-vassilisamir@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Add support for the regulators described in the dt-binding. Signed-off-by: Vasileios Amoiridis --- drivers/iio/chemical/bme680_core.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/drivers/iio/chemical/bme680_core.c b/drivers/iio/chemical/bme6= 80_core.c index 8c80a5f1ef9e..2d9d20f203aa 100644 --- a/drivers/iio/chemical/bme680_core.c +++ b/drivers/iio/chemical/bme680_core.c @@ -15,6 +15,7 @@ #include #include #include +#include =20 #include #include @@ -110,6 +111,10 @@ enum bme680_scan { BME680_GAS, }; =20 +static const char *const bme680_supply_names[] =3D { "vdd", "vddio" }; + +#define BME680_NUM_SUPPLIES ARRAY_SIZE(bme680_supply_names) + struct bme680_data { struct regmap *regmap; struct bme680_calib bme680; @@ -121,6 +126,8 @@ struct bme680_data { u16 heater_dur; u16 heater_temp; =20 + struct regulator_bulk_data supplies[BME680_NUM_SUPPLIES]; + struct { s32 chan[4]; aligned_s64 ts; @@ -1114,6 +1121,14 @@ int bme680_core_probe(struct device *dev, struct reg= map *regmap, data->heater_dur =3D 150; /* milliseconds */ data->preheat_curr_mA =3D 0; 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([2a04:ee41:82:7577:9cf6:f1e5:ce2b:ea6b]) by smtp.googlemail.com with ESMTPSA id 4fb4d7f45d1cf-5cb66c6b12dsm2338702a12.77.2024.10.21.12.53.44 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 21 Oct 2024 12:53:45 -0700 (PDT) From: Vasileios Amoiridis To: jic23@kernel.org, lars@metafoo.de, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, andriy.shevchenko@linux.intel.com Cc: vassilisamir@gmail.com, anshulusr@gmail.com, gustavograzs@gmail.com, linux-iio@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 13/13] iio: chemical: bme680: add power management Date: Mon, 21 Oct 2024 21:53:16 +0200 Message-ID: <20241021195316.58911-14-vassilisamir@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20241021195316.58911-1-vassilisamir@gmail.com> References: <20241021195316.58911-1-vassilisamir@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Add runtime power management to the device. To facilitate this, add also a struct dev* inside the bme680_data structure to have the device accesible from the data structure. Signed-off-by: Vasileios Amoiridis --- drivers/iio/chemical/bme680.h | 2 + drivers/iio/chemical/bme680_core.c | 126 +++++++++++++++++++++++++++-- 2 files changed, 121 insertions(+), 7 deletions(-) diff --git a/drivers/iio/chemical/bme680.h b/drivers/iio/chemical/bme680.h index e5d82a6d5b59..74e97e35e35a 100644 --- a/drivers/iio/chemical/bme680.h +++ b/drivers/iio/chemical/bme680.h @@ -2,6 +2,7 @@ #ifndef BME680_H_ #define BME680_H_ =20 +#include #include =20 #define BME680_REG_CHIP_ID 0xD0 @@ -82,6 +83,7 @@ #define BME680_CALIB_RANGE_3_LEN 5 =20 extern const struct regmap_config bme680_regmap_config; +extern const struct dev_pm_ops bme680_dev_pm_ops; =20 int bme680_core_probe(struct device *dev, struct regmap *regmap, const char *name); diff --git a/drivers/iio/chemical/bme680_core.c b/drivers/iio/chemical/bme6= 80_core.c index 2d9d20f203aa..803aa4f14b37 100644 --- a/drivers/iio/chemical/bme680_core.c +++ b/drivers/iio/chemical/bme680_core.c @@ -14,6 +14,8 @@ #include #include #include +#include +#include #include #include =20 @@ -823,9 +825,9 @@ static int bme680_read_gas(struct bme680_data *data, in= t *comp_gas_res) return 0; } =20 -static int bme680_read_raw(struct iio_dev *indio_dev, - struct iio_chan_spec const *chan, - int *val, int *val2, long mask) +static int __bme680_read_raw(struct iio_dev *indio_dev, + struct iio_chan_spec const *chan, + int *val, int *val2, long mask) { struct bme680_data *data =3D iio_priv(indio_dev); int chan_val, ret; @@ -937,14 +939,30 @@ static int bme680_read_raw(struct iio_dev *indio_dev, } } =20 +static int bme680_read_raw(struct iio_dev *indio_dev, + struct iio_chan_spec const *chan, + int *val, int *val2, long mask) +{ + struct bme680_data *data =3D iio_priv(indio_dev); + struct device *dev =3D regmap_get_device(data->regmap); + int ret; + + pm_runtime_get_sync(dev); + ret =3D __bme680_read_raw(indio_dev, chan, val, val2, mask); + pm_runtime_mark_last_busy(dev); + pm_runtime_put_autosuspend(dev); + + return ret; +} + static bool bme680_is_valid_oversampling(int rate) { return (rate > 0 && rate <=3D 16 && is_power_of_2(rate)); } =20 -static int bme680_write_raw(struct iio_dev *indio_dev, - struct iio_chan_spec const *chan, - int val, int val2, long mask) +static int __bme680_write_raw(struct iio_dev *indio_dev, + struct iio_chan_spec const *chan, + int val, int val2, long mask) { struct bme680_data *data =3D iio_priv(indio_dev); =20 @@ -989,6 +1007,22 @@ static int bme680_write_raw(struct iio_dev *indio_dev, } } =20 +static int bme680_write_raw(struct iio_dev *indio_dev, + struct iio_chan_spec const *chan, + int val, int val2, long mask) +{ + struct bme680_data *data =3D iio_priv(indio_dev); + struct device *dev =3D regmap_get_device(data->regmap); + int ret; + + pm_runtime_get_sync(dev); + ret =3D __bme680_write_raw(indio_dev, chan, val, val2, mask); + pm_runtime_mark_last_busy(dev); + pm_runtime_put_autosuspend(dev); + + return ret; +} + static const char bme680_oversampling_ratio_show[] =3D "1 2 4 8 16"; =20 static IIO_CONST_ATTR(oversampling_ratio_available, @@ -1091,6 +1125,39 @@ static irqreturn_t bme680_trigger_handler(int irq, v= oid *p) return IRQ_HANDLED; } =20 +static int bme680_buffer_preenable(struct iio_dev *indio_dev) +{ + struct bme680_data *data =3D iio_priv(indio_dev); + struct device *dev =3D regmap_get_device(data->regmap); + + pm_runtime_get_sync(dev); + return 0; +} + +static int bme680_buffer_postdisable(struct iio_dev *indio_dev) +{ + struct bme680_data *data =3D iio_priv(indio_dev); + struct device *dev =3D regmap_get_device(data->regmap); + + pm_runtime_mark_last_busy(dev); + pm_runtime_put_autosuspend(dev); + return 0; +} + +static const struct iio_buffer_setup_ops bme680_buffer_setup_ops =3D { + .preenable =3D bme680_buffer_preenable, + .postdisable =3D bme680_buffer_postdisable, +}; + +static void bme680_pm_disable(void *data) +{ + struct device *dev =3D data; + + pm_runtime_get_sync(dev); + pm_runtime_put_noidle(dev); + pm_runtime_disable(dev); +} + int bme680_core_probe(struct device *dev, struct regmap *regmap, const char *name) { @@ -1164,15 +1231,60 @@ int bme680_core_probe(struct device *dev, struct re= gmap *regmap, ret =3D devm_iio_triggered_buffer_setup(dev, indio_dev, iio_pollfunc_store_time, bme680_trigger_handler, - NULL); + &bme680_buffer_setup_ops); if (ret) return dev_err_probe(dev, ret, "iio triggered buffer setup failed\n"); =20 + /* Enable runtime PM */ + pm_runtime_get_noresume(dev); + pm_runtime_set_autosuspend_delay(dev, BME680_STARTUP_TIME_US * 100); + pm_runtime_use_autosuspend(dev); + pm_runtime_set_active(dev); + ret =3D devm_pm_runtime_enable(dev); + if (ret) + return ret; + + pm_runtime_put(dev); + + ret =3D devm_add_action_or_reset(dev, bme680_pm_disable, dev); + if (ret) + return ret; + return devm_iio_device_register(dev, indio_dev); } EXPORT_SYMBOL_NS_GPL(bme680_core_probe, IIO_BME680); =20 +static int bme680_runtime_suspend(struct device *dev) +{ + struct iio_dev *indio_dev =3D dev_get_drvdata(dev); + struct bme680_data *data =3D iio_priv(indio_dev); + + return regulator_bulk_disable(BME680_NUM_SUPPLIES, data->supplies); +} + +static int bme680_runtime_resume(struct device *dev) +{ + struct iio_dev *indio_dev =3D dev_get_drvdata(dev); + struct bme680_data *data =3D iio_priv(indio_dev); + int ret; + + ret =3D regulator_bulk_enable(BME680_NUM_SUPPLIES, data->supplies); + if (ret) + return ret; + + fsleep(BME680_STARTUP_TIME_US); + + ret =3D bme680_chip_config(data); + if (ret) + return ret; + + return bme680_gas_config(data); +} + +EXPORT_RUNTIME_DEV_PM_OPS(bme680_dev_pm_ops, bme680_runtime_suspend, + bme680_runtime_resume, NULL); + MODULE_AUTHOR("Himanshu Jha "); MODULE_DESCRIPTION("Bosch BME680 Driver"); MODULE_LICENSE("GPL v2"); --=20 2.43.0