From nobody Sun Sep 14 00:34:55 2025 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 E29D4275B06; Wed, 20 Aug 2025 14:24:45 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755699886; cv=none; b=i55Y0929IDRAAApUipNsWsoOWXRqjDIhsBNWwE/aUEX1ZHcAQ53BfpptQzFepfquHvQpbJPu9fHNt9TYA0RB5Te01DvGd+AmMHGiT3Q8bJB+7Y57Dd/RH4fuCEsO2h2aI8czgNB9zviu/NWnSXIwIQmIUYEr78WSkmnB1Rs3e+0= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755699886; c=relaxed/simple; bh=1mvaLJYXcpBg3jHRWA6Z73vIYEHei+5ci7/poVvYBIQ=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=QgCsJ+yfXCENa52LGPxPSinY+lA+zg/EIWwtgAvVymC+G2TJz4z2UWwCb5M8Txdx0qm+xwyvphF5L2Rq8mX7Tw0eJvelW0T9f501/x758Rhp/VDQCdIUMkVz9T/rt+IRwIbxd+rsTvZHbF7NNvz7Y8cmP9l0a4r7Ld11Wtk/oq0= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=fBm79lPP; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="fBm79lPP" Received: by smtp.kernel.org (Postfix) with ESMTPS id BEFB9C2BCAF; Wed, 20 Aug 2025 14:24:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1755699885; bh=1mvaLJYXcpBg3jHRWA6Z73vIYEHei+5ci7/poVvYBIQ=; h=From:Date:Subject:References:In-Reply-To:To:Cc:Reply-To:From; b=fBm79lPPf+X8tXIEtkjytbwOn4FNdO9eIq0izbdvexgx0X5dZxSg54DiIg6bqWRdc 7UIXM1EToGZB+pwK80oNqtL/tZ3VdcvSqwLFNB1yQ1kIVbzldoLMo0lG7H490oTlpl AqompVesFiwBuBWgXRne2b7fT740mHrhlFu9IwCbEWNhfHFSwfv4lUn9ke8Mzm4dn0 OIky+z5N8og4taP0vTdAAt3gDcfgvDo09zSiYXw7cZ2pQ6r+LbeOdY3FLA82N6NKR6 KZUGRlLflpplyF0CDnmkRBKgfRaHubcTGJ+vFkfZ8cmkwSLl4mdbiYZ1DjRmXt3ri7 3hMCm4xqnFhiQ== Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id B2242CA0EE4; Wed, 20 Aug 2025 14:24:45 +0000 (UTC) From: Remi Buisson via B4 Relay Date: Wed, 20 Aug 2025 14:24:25 +0000 Subject: [PATCH v5 7/9] iio: imu: inv_icm45600: add SPI driver for inv_icm45600 driver Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20250820-add_newport_driver-v5-7-2fc9f13dddee@tdk.com> References: <20250820-add_newport_driver-v5-0-2fc9f13dddee@tdk.com> In-Reply-To: <20250820-add_newport_driver-v5-0-2fc9f13dddee@tdk.com> To: Jonathan Cameron , David Lechner , =?utf-8?q?Nuno_S=C3=A1?= , Andy Shevchenko , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: linux-kernel@vger.kernel.org, linux-iio@vger.kernel.org, devicetree@vger.kernel.org, Remi Buisson X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1755699883; l=5346; i=remi.buisson@tdk.com; s=20250411; h=from:subject:message-id; bh=PWO5+4GHdjNXSXh2Gtxk2P1lIY3h8sVtAxOPR7SWAVA=; b=jcjCiMsUthtT6i/ShhMMs87ckaa9jXdbd4Pt4yVpqarULT/HLZPwppo7CJdSv1H627QvyjTtV BIRrQqtWK/SCB4I9akk/hPKPb/5Y6Tqu7tYdcPA/vcIs3PlHpXm5fZv X-Developer-Key: i=remi.buisson@tdk.com; a=ed25519; pk=yDVMi4C7RpXN4dififo42A7fDDt3THYzoZoNq9lUZuo= X-Endpoint-Received: by B4 Relay for remi.buisson@tdk.com/20250411 with auth_id=372 X-Original-From: Remi Buisson Reply-To: remi.buisson@tdk.com From: Remi Buisson Add SPI driver for InvenSense ICM-456000 devices. Signed-off-by: Remi Buisson --- drivers/iio/imu/inv_icm45600/Kconfig | 21 +++++ drivers/iio/imu/inv_icm45600/Makefile | 3 + drivers/iio/imu/inv_icm45600/inv_icm45600_spi.c | 106 ++++++++++++++++++++= ++++ 3 files changed, 130 insertions(+) diff --git a/drivers/iio/imu/inv_icm45600/Kconfig b/drivers/iio/imu/inv_icm= 45600/Kconfig index 5b044a954e952ffa8e44507eea42872e1f3161bc..01399d136a7ea3aa92a3a18ea45= 5c95c0a6578b3 100644 --- a/drivers/iio/imu/inv_icm45600/Kconfig +++ b/drivers/iio/imu/inv_icm45600/Kconfig @@ -26,3 +26,24 @@ config INV_ICM45600_I2C =20 This driver can be built as a module. The module will be called inv-icm45600-i2c. + +config INV_ICM45600_SPI + tristate "InvenSense ICM-456xx SPI driver" + depends on SPI_MASTER + select INV_ICM45600 + select REGMAP_SPI + help + This driver supports the InvenSense ICM-456xx motion tracking + devices over SPI. + Supported devices: + - ICM-45605 + - ICM-45606 + - ICM-45608 + - ICM-45634 + - ICM-45686 + - ICM-45687 + - ICM-45688-P + - ICM-45689 + + This driver can be built as a module. The module will be called + inv-icm45600-spi. diff --git a/drivers/iio/imu/inv_icm45600/Makefile b/drivers/iio/imu/inv_ic= m45600/Makefile index c43e5d6ad3a2ddbd666d77630015c440e740d969..3692636d393a109a0ad68e955e1= cad59005e9128 100644 --- a/drivers/iio/imu/inv_icm45600/Makefile +++ b/drivers/iio/imu/inv_icm45600/Makefile @@ -8,3 +8,6 @@ inv-icm45600-y +=3D inv_icm45600_accel.o =20 obj-$(CONFIG_INV_ICM45600_I2C) +=3D inv-icm45600-i2c.o inv-icm45600-i2c-y +=3D inv_icm45600_i2c.o + +obj-$(CONFIG_INV_ICM45600_SPI) +=3D inv-icm45600-spi.o +inv-icm45600-spi-y +=3D inv_icm45600_spi.o diff --git a/drivers/iio/imu/inv_icm45600/inv_icm45600_spi.c b/drivers/iio/= imu/inv_icm45600/inv_icm45600_spi.c new file mode 100644 index 0000000000000000000000000000000000000000..2fd4ecce24bd60aa2112e1bcae3= f7196504df637 --- /dev/null +++ b/drivers/iio/imu/inv_icm45600/inv_icm45600_spi.c @@ -0,0 +1,106 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* Copyright (C) 2025 InvenSense, Inc. */ + +#include +#include +#include +#include +#include +#include + +#include "inv_icm45600.h" + +static const struct regmap_config inv_icm45600_regmap_config =3D { + .reg_bits =3D 8, + .val_bits =3D 8, +}; + +static int inv_icm45600_spi_bus_setup(struct inv_icm45600_state *st) +{ + /* Set slew rates for SPI. */ + return regmap_update_bits(st->map, INV_ICM45600_REG_DRIVE_CONFIG0, + INV_ICM45600_DRIVE_CONFIG0_SPI_MASK, + FIELD_PREP(INV_ICM45600_DRIVE_CONFIG0_SPI_MASK, + INV_ICM45600_SPI_SLEW_RATE_5NS)); +} + +static int inv_icm45600_probe(struct spi_device *spi) +{ + const struct inv_icm45600_chip_info *chip_info; + struct regmap *regmap; + + chip_info =3D spi_get_device_match_data(spi); + if (!chip_info) + return -ENODEV; + + /* Use SPI specific regmap. */ + regmap =3D devm_regmap_init_spi(spi, &inv_icm45600_regmap_config); + if (IS_ERR(regmap)) + return PTR_ERR(regmap); + + return inv_icm45600_core_probe(regmap, chip_info, true, + inv_icm45600_spi_bus_setup); +} + +/* + * The device id table is used to identify which device is + * supported by this driver. + */ +static const struct spi_device_id inv_icm45600_id[] =3D { + { "icm45605", (kernel_ulong_t)&inv_icm45605_chip_info }, + { "icm45606", (kernel_ulong_t)&inv_icm45606_chip_info }, + { "icm45608", (kernel_ulong_t)&inv_icm45608_chip_info }, + { "icm45634", (kernel_ulong_t)&inv_icm45634_chip_info }, + { "icm45686", (kernel_ulong_t)&inv_icm45686_chip_info }, + { "icm45687", (kernel_ulong_t)&inv_icm45687_chip_info }, + { "icm45688p", (kernel_ulong_t)&inv_icm45688p_chip_info }, + { "icm45689", (kernel_ulong_t)&inv_icm45689_chip_info }, + { } +}; +MODULE_DEVICE_TABLE(spi, inv_icm45600_id); + +static const struct of_device_id inv_icm45600_of_matches[] =3D { + { + .compatible =3D "invensense,icm45605", + .data =3D &inv_icm45605_chip_info, + }, { + .compatible =3D "invensense,icm45606", + .data =3D &inv_icm45606_chip_info, + }, { + .compatible =3D "invensense,icm45608", + .data =3D &inv_icm45608_chip_info, + }, { + .compatible =3D "invensense,icm45634", + .data =3D &inv_icm45634_chip_info, + }, { + .compatible =3D "invensense,icm45686", + .data =3D &inv_icm45686_chip_info, + }, { + .compatible =3D "invensense,icm45687", + .data =3D &inv_icm45687_chip_info, + }, { + .compatible =3D "invensense,icm45688p", + .data =3D &inv_icm45688p_chip_info, + }, { + .compatible =3D "invensense,icm45689", + .data =3D &inv_icm45689_chip_info, + }, + { } +}; +MODULE_DEVICE_TABLE(of, inv_icm45600_of_matches); + +static struct spi_driver inv_icm45600_driver =3D { + .driver =3D { + .name =3D "inv-icm45600-spi", + .of_match_table =3D inv_icm45600_of_matches, + .pm =3D pm_ptr(&inv_icm45600_pm_ops), + }, + .id_table =3D inv_icm45600_id, + .probe =3D inv_icm45600_probe, +}; +module_spi_driver(inv_icm45600_driver); + +MODULE_AUTHOR("InvenSense, Inc."); +MODULE_DESCRIPTION("InvenSense ICM-456xx SPI driver"); +MODULE_LICENSE("GPL"); +MODULE_IMPORT_NS("IIO_ICM45600"); --=20 2.34.1