From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-oi1-f176.google.com (mail-oi1-f176.google.com [209.85.167.176]) (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 A80384183C1 for ; Mon, 15 Jun 2026 17:28:14 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.167.176 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1781544496; cv=none; b=pyQF2G7JAG7QlfRsySS0ZVjmrDwTeA3Ezt8aNW5GtcRey75d5NlcfWeVdajUiE5uWanQ7r3u4ka7P3BgJJ3K/zZJjLlTNZT2jB1UNlG+HXT06PFy5nC5mocfftTstdWv8t+BJu2B/JAEWKaVUmUwElLe0HwxpG2W2pwQdUxA8/Y= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1781544496; c=relaxed/simple; bh=O0RhG/I16oRqLYOihv7dBqJX3GkjziLMNtLoXequs2s=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=q6E2c3Vip45aWujtaFIbFKtZVR8xoFJ3edzfO99riCK6wXkLAf6ae+w1O9qUHrW0b2ibbSpW/tYKDp/+nrz+2CSjvbdh0mBQ6nqOTQ+USCHBYYswAEjs4dFvTOQn3hKQKDzLiDLnmHIFlXlWebwhWvRG6o6JMBbNeUq4ATzBJQw= 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=J46GH8vD; arc=none smtp.client-ip=209.85.167.176 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="J46GH8vD" Received: by mail-oi1-f176.google.com with SMTP id 5614622812f47-48633190849so1363071b6e.3 for ; Mon, 15 Jun 2026 10:28:14 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20251104; t=1781544494; x=1782149294; 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=4vsn6yN6THg0V/VqKUqeCd36IReXPK449tYlnmJP6sY=; b=J46GH8vDHVPiCg6abN1ULLCW0EvExByhdCvq10daW21Aw0Gh3Y4z0E8v/NMJQNA9ct AFfJSq4nsHXgofPDZwuF2wH4wmCXLneiTsnMX6v72SPEQFgDWng/ClHW2jdREN8Q/0bZ Dzxf1GE4eL3ZfAnlHUYsIhjDTrnQKgh69DJHTbnUHjv0/amFdXIp8uiayohAHyVaJ7v7 mKQBNB45EPULcgg5TzRpVoVfPYWG/DwcMvtM32u3G3gSlK79tpbLOy/fJ1HE6d9MMcjf zBuFJLoLAVHedm8h6czXPtwv5Clgd1KIDJPuejQVDQNJM1WYo4+JYfpVy+KAR2NWaMJ3 yjlw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1781544494; x=1782149294; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-gg:x-gm-message-state:from :to:cc:subject:date:message-id:reply-to; bh=4vsn6yN6THg0V/VqKUqeCd36IReXPK449tYlnmJP6sY=; b=GpzTmr4gj3kzkaTnxoleCp52qudl/wsGmJpT+VG/h2NZuEIEr2tIJ82WjVz2E2mRUc tqvUluBw6OT/f9QaYLUKLFDYnyj29NTzzqu3W3LyeE4vebvl6lVd0DnU5e6KnTA1KJlI gb6+VGI/rU/TzIchLVWmsucri/TXv/Cled698Zbo+X2Asm5srCUi1k5L/6TaULgmEP7Y 8FY9xu8Nu1PnzKrpvxCRX6b9jrDcmjGIi/K3DAdmtfLywuFt0yak39geGYbkYdMJ5dbx 6nIgzazwrhoKxLzre3DstNzPZ0HEnI88kaGLq+U1ZtODL/Pxm2mPzlICzLehEyl0Zi8M Ttog== X-Forwarded-Encrypted: i=1; AFNElJ9WmvDU0Cl5Na128Q/FyVDxBH8x6Obv3hi2tz/KtSesBsEPmb0j0Lwfhjmo9d9KwYMFavkGbcu9qwFf@vger.kernel.org X-Gm-Message-State: AOJu0YwBPc15pEZ0k1fjCLD6lCHmSHoXeYa3x6aqDO43khIAIHemi0QC 8Elo0cTCcMB/j8cN4ypZoGRqbVh9K3/ysfYuSq8nBCjDusGlp3kZEiDx X-Gm-Gg: Acq92OHIvUeiON1eHtVPNTYBeU6Q7h2DEsEiB568eGa09SzJpPUiYiMaoj2/+C/3xjp NNmk8hZomPceWTPfM3AAx9Yr9xTAnxFP44dS/1E+ZWgrkG5aoCFSOnYGxkGDzR168YCJD64UQLW ACPO17ufTDbgXY/tyUORfmjVwnFrFvIb4qhs4AX8+PmapZtAb6rBRil1oa7vqJyzFXpsjK3SYAf eFafXrkacjmRaemU89SLzNZfRVGnhQcI4NgLByr73J3dvFwAwK0XOCj/+r/ypE6y2VO2BHqsSU/ irPx5Xf5HMRITOSDSHxW5Kyc1Dqqw6V4NH8n/QRQvNegA1IKwUnZeNpHPPN7/gzuLurJyRgJoNM N/pj4wpqFFnmN66lF5mIsRyQs5XLS5CIK5JaC/XZFNM/9omZOv+sQbTjLJYZ0LI8GZvRTsDKKCK rUmEKvcMAoXEkV6o3efdVLZw== X-Received: by 2002:a05:6808:1524:b0:479:ac7d:6d8a with SMTP id 5614622812f47-48741b03b3emr8075236b6e.24.1781544493657; Mon, 15 Jun 2026 10:28:13 -0700 (PDT) Received: from localhost.localdomain ([2600:1700:fb0:1bc0::54]) by smtp.gmail.com with ESMTPSA id 46e09a7af769-7e79f451fe7sm4480033a34.0.2026.06.15.10.28.12 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 15 Jun 2026 10:28:12 -0700 (PDT) From: Chris Morgan To: linux-iio@vger.kernel.org Cc: andy@kernel.org, nuno.sa@analog.com, dlechner@baylibre.com, jic23@kernel.org, jean-baptiste.maneyrol@tdk.com, linux-rockchip@lists.infradead.org, devicetree@vger.kernel.org, heiko@sntech.de, conor+dt@kernel.org, krzk+dt@kernel.org, robh@kernel.org, andriy.shevchenko@intel.com, Chris Morgan Subject: [PATCH V13 6/9] iio: imu: inv_icm42607: Add Temp Support in icm42607 Date: Mon, 15 Jun 2026 12:25:49 -0500 Message-ID: <20260615172554.160910-7-macroalpha82@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260615172554.160910-1-macroalpha82@gmail.com> References: <20260615172554.160910-1-macroalpha82@gmail.com> Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit From: Chris Morgan Add functions for reading temperature sensor data. Signed-off-by: Chris Morgan --- drivers/iio/imu/inv_icm42607/Makefile | 1 + drivers/iio/imu/inv_icm42607/inv_icm42607.h | 3 + .../iio/imu/inv_icm42607/inv_icm42607_core.c | 18 +++++ .../iio/imu/inv_icm42607/inv_icm42607_temp.c | 81 +++++++++++++++++++ .../iio/imu/inv_icm42607/inv_icm42607_temp.h | 37 +++++++++ 5 files changed, 140 insertions(+) create mode 100644 drivers/iio/imu/inv_icm42607/inv_icm42607_temp.c create mode 100644 drivers/iio/imu/inv_icm42607/inv_icm42607_temp.h diff --git a/drivers/iio/imu/inv_icm42607/Makefile b/drivers/iio/imu/inv_icm42607/Makefile index be109102e203..c04953ed42ce 100644 --- a/drivers/iio/imu/inv_icm42607/Makefile +++ b/drivers/iio/imu/inv_icm42607/Makefile @@ -2,6 +2,7 @@ obj-$(CONFIG_INV_ICM42607) += inv-icm42607.o inv-icm42607-y += inv_icm42607_core.o +inv-icm42607-y += inv_icm42607_temp.o obj-$(CONFIG_INV_ICM42607_I2C) += inv-icm42607-i2c.o inv-icm42607-i2c-y += inv_icm42607_i2c.o diff --git a/drivers/iio/imu/inv_icm42607/inv_icm42607.h b/drivers/iio/imu/inv_icm42607/inv_icm42607.h index 4f4f541027dc..726b836582a2 100644 --- a/drivers/iio/imu/inv_icm42607/inv_icm42607.h +++ b/drivers/iio/imu/inv_icm42607/inv_icm42607.h @@ -358,6 +358,9 @@ extern const struct inv_icm42607_hw inv_icm42607_hw_data; extern const struct inv_icm42607_hw inv_icm42607p_hw_data; extern const struct dev_pm_ops inv_icm42607_pm_ops; +int inv_icm42607_set_temp_conf(struct inv_icm42607_state *st, bool enable, + unsigned int *sleep_ms); + int inv_icm42607_core_probe(struct regmap *regmap, const struct inv_icm42607_hw *hw, inv_icm42607_bus_setup bus_setup); diff --git a/drivers/iio/imu/inv_icm42607/inv_icm42607_core.c b/drivers/iio/imu/inv_icm42607/inv_icm42607_core.c index 64f5d263de4f..644cd7f821b9 100644 --- a/drivers/iio/imu/inv_icm42607/inv_icm42607_core.c +++ b/drivers/iio/imu/inv_icm42607/inv_icm42607_core.c @@ -162,6 +162,24 @@ static int inv_icm42607_set_pwr_mgmt0(struct inv_icm42607_state *st, return 0; } +int inv_icm42607_set_temp_conf(struct inv_icm42607_state *st, bool enable, + unsigned int *sleep_ms) +{ + unsigned int val; + int ret; + + val = FIELD_PREP(INV_ICM42607_TEMP_CONFIG0_FILTER_MASK, + INV_ICM42607_FILTER_BW_34HZ); + ret = regmap_update_bits(st->map, INV_ICM42607_REG_TEMP_CONFIG0, + INV_ICM42607_TEMP_CONFIG0_FILTER_MASK, val); + if (ret) + return ret; + + return inv_icm42607_set_pwr_mgmt0(st, st->conf.gyro.mode, + st->conf.accel.mode, enable, + sleep_ms); +} + static int inv_icm42607_set_conf(struct inv_icm42607_state *st, const struct inv_icm42607_conf *conf) { diff --git a/drivers/iio/imu/inv_icm42607/inv_icm42607_temp.c b/drivers/iio/imu/inv_icm42607/inv_icm42607_temp.c new file mode 100644 index 000000000000..9a60e1a478b0 --- /dev/null +++ b/drivers/iio/imu/inv_icm42607/inv_icm42607_temp.c @@ -0,0 +1,81 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Copyright (C) 2026 InvenSense, Inc. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "inv_icm42607.h" +#include "inv_icm42607_temp.h" + +static int inv_icm42607_temp_read(struct inv_icm42607_state *st, s16 *temp) +{ + struct device *dev = regmap_get_device(st->map); + u8 raw[2]; + int ret; + + PM_RUNTIME_ACQUIRE_AUTOSUSPEND(dev, pm); + ret = PM_RUNTIME_ACQUIRE_ERR(&pm); + if (ret) + return ret; + + guard(mutex)(&st->lock); + + st->conf.temp_en = true; + ret = inv_icm42607_set_temp_conf(st, st->conf.temp_en, NULL); + st->conf.temp_en = false; + if (ret) + return ret; + + ret = regmap_bulk_read(st->map, INV_ICM42607_REG_TEMP_DATA1, + raw, sizeof(raw)); + if (ret) + return ret; + + *temp = get_unaligned_be16(raw); + if (*temp == INV_ICM42607_DATA_INVALID) + return -EINVAL; + + return 0; +} + +int inv_icm42607_temp_read_raw(struct iio_dev *indio_dev, + struct iio_chan_spec const *chan, + int *val, int *val2, long mask) +{ + struct inv_icm42607_state *st = iio_device_get_drvdata(indio_dev); + s16 temp; + int ret; + + switch (mask) { + case IIO_CHAN_INFO_RAW: + ret = inv_icm42607_temp_read(st, &temp); + if (ret) + return ret; + *val = temp; + return IIO_VAL_INT; + /* + * T°C = (temp / 128) + 25 + * Tm°C = 1000 * ((temp * 100 / 12800) + 25) + * scale: 100000 / 12800 ~= 7.8125 + * offset: 3200 + */ + case IIO_CHAN_INFO_SCALE: + *val = 7; + *val2 = 812500000; + return IIO_VAL_INT_PLUS_NANO; + case IIO_CHAN_INFO_OFFSET: + *val = 3200; + return IIO_VAL_INT; + default: + return -EINVAL; + } +} diff --git a/drivers/iio/imu/inv_icm42607/inv_icm42607_temp.h b/drivers/iio/imu/inv_icm42607/inv_icm42607_temp.h new file mode 100644 index 000000000000..cb7b460ffb44 --- /dev/null +++ b/drivers/iio/imu/inv_icm42607/inv_icm42607_temp.h @@ -0,0 +1,37 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * Copyright (C) 2026 InvenSense, Inc. + */ + +#ifndef INV_ICM42607_TEMP_H_ +#define INV_ICM42607_TEMP_H_ + +#include + +struct iio_dev; +struct iio_chan_spec; + +#define INV_ICM42607_TEMP_CHAN(_index) \ +{ \ + .type = IIO_TEMP, \ + .info_mask_separate = \ + BIT(IIO_CHAN_INFO_RAW) | \ + BIT(IIO_CHAN_INFO_OFFSET) | \ + BIT(IIO_CHAN_INFO_SCALE), \ + .info_mask_shared_by_all = \ + BIT(IIO_CHAN_INFO_SAMP_FREQ), \ + .info_mask_shared_by_all_available = \ + BIT(IIO_CHAN_INFO_SAMP_FREQ), \ + .scan_index = _index, \ + .scan_type = { \ + .sign = 's', \ + .realbits = 16, \ + .storagebits = 16, \ + }, \ +} + +int inv_icm42607_temp_read_raw(struct iio_dev *indio_dev, + struct iio_chan_spec const *chan, + int *val, int *val2, long mask); + +#endif -- 2.43.0