From patchwork Thu Jun 6 15:12:02 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vitor Soares X-Patchwork-Id: 10979771 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 28F5176 for ; Thu, 6 Jun 2019 15:12:28 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 1764921EEB for ; Thu, 6 Jun 2019 15:12:28 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 159AE26E69; Thu, 6 Jun 2019 15:12:28 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.0 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 80667285AB for ; Thu, 6 Jun 2019 15:12:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729141AbfFFPMK (ORCPT ); Thu, 6 Jun 2019 11:12:10 -0400 Received: from smtprelay-out1.synopsys.com ([198.182.61.142]:50662 "EHLO smtprelay-out1.synopsys.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1728812AbfFFPMJ (ORCPT ); Thu, 6 Jun 2019 11:12:09 -0400 Received: from mailhost.synopsys.com (mdc-mailhost1.synopsys.com [10.225.0.209]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) (No client certificate requested) by smtprelay-out1.synopsys.com (Postfix) with ESMTPS id 14B86C0BA6; Thu, 6 Jun 2019 15:11:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=synopsys.com; s=mail; t=1559833908; bh=3f7/q2BglQTljnvAoJoA7QvsI9bDMDsZY3M0zTPkEu8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:In-Reply-To: References:From; b=MoUVLOyvqY8XckBqcY8qZMv7wHegsXlDpLf0Y84Jjs7pAz91nF1EXHC5WJaJiNb6g a+vdtyYg3AJy+CzFeH6Tvx/bVxatFZ2UwzVnO56ZiCk94LaekjIOVKy/53Drb9PU1d v2/5k8j8uiDj/HQPePE7nxfqUUGzg0dzyaC9u1Nq018tn67X4W6s21d+A/SRJApenv Ti2WjzzaVlYWE8YJUulsLS6juY3LAsQ0I5Sz+Kpdal75S/kvbkxhyzFdwBm+KsrqBZ ADjDTziwQCNVM9bnRHaF7FZ7m2irKgm1dS2RJrsNiJM3YeXCzklm/roohbCXjmIYoZ qHZ1XixS0f6xQ== Received: from de02.synopsys.com (germany.internal.synopsys.com [10.225.17.21]) by mailhost.synopsys.com (Postfix) with ESMTP id C2282A005F; Thu, 6 Jun 2019 15:12:07 +0000 (UTC) Received: from de02dwia024.internal.synopsys.com (de02dwia024.internal.synopsys.com [10.225.19.81]) by de02.synopsys.com (Postfix) with ESMTP id AC9823FECF; Thu, 6 Jun 2019 17:12:07 +0200 (CEST) From: Vitor Soares To: linux-iio@vger.kernel.org, linux-i2c@vger.kernel.org, linux-i3c@lists.infradead.org, linux-kernel@vger.kernel.org Cc: broonie@kernel.org, gregkh@linuxfoundation.org, rafael@kernel.org, bbrezillon@kernel.org, Joao.Pinto@synopsys.com, lorenzo.bianconi83@gmail.com, Vitor Soares Subject: [PATCH v2 1/3] regmap: add i3c bus support Date: Thu, 6 Jun 2019 17:12:02 +0200 Message-Id: X-Mailer: git-send-email 2.7.4 In-Reply-To: References: In-Reply-To: References: Sender: linux-iio-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-iio@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Add basic support for i3c bus. This is a simple implementation that only give support for SDR Read and Write commands. Signed-off-by: Vitor Soares --- Changes in v2: None drivers/base/regmap/Kconfig | 6 +++- drivers/base/regmap/Makefile | 1 + drivers/base/regmap/regmap-i3c.c | 60 ++++++++++++++++++++++++++++++++++++++++ include/linux/regmap.h | 20 ++++++++++++++ 4 files changed, 86 insertions(+), 1 deletion(-) create mode 100644 drivers/base/regmap/regmap-i3c.c diff --git a/drivers/base/regmap/Kconfig b/drivers/base/regmap/Kconfig index 6ad5ef4..c8bbf53 100644 --- a/drivers/base/regmap/Kconfig +++ b/drivers/base/regmap/Kconfig @@ -4,7 +4,7 @@ # subsystems should select the appropriate symbols. config REGMAP - default y if (REGMAP_I2C || REGMAP_SPI || REGMAP_SPMI || REGMAP_W1 || REGMAP_AC97 || REGMAP_MMIO || REGMAP_IRQ) + default y if (REGMAP_I2C || REGMAP_SPI || REGMAP_SPMI || REGMAP_W1 || REGMAP_AC97 || REGMAP_MMIO || REGMAP_IRQ || REGMAP_I3C) select IRQ_DOMAIN if REGMAP_IRQ bool @@ -49,3 +49,7 @@ config REGMAP_SOUNDWIRE config REGMAP_SCCB tristate depends on I2C + +config REGMAP_I3C + tristate + depends on I3C diff --git a/drivers/base/regmap/Makefile b/drivers/base/regmap/Makefile index f5b4e88..ff6c7d8 100644 --- a/drivers/base/regmap/Makefile +++ b/drivers/base/regmap/Makefile @@ -16,3 +16,4 @@ obj-$(CONFIG_REGMAP_IRQ) += regmap-irq.o obj-$(CONFIG_REGMAP_W1) += regmap-w1.o obj-$(CONFIG_REGMAP_SOUNDWIRE) += regmap-sdw.o obj-$(CONFIG_REGMAP_SCCB) += regmap-sccb.o +obj-$(CONFIG_REGMAP_I3C) += regmap-i3c.o diff --git a/drivers/base/regmap/regmap-i3c.c b/drivers/base/regmap/regmap-i3c.c new file mode 100644 index 0000000..1578fb5 --- /dev/null +++ b/drivers/base/regmap/regmap-i3c.c @@ -0,0 +1,60 @@ +// SPDX-License-Identifier: GPL-2.0 +// Copyright (c) 2018 Synopsys, Inc. and/or its affiliates. + +#include +#include +#include +#include + +static int regmap_i3c_write(void *context, const void *data, size_t count) +{ + struct device *dev = context; + struct i3c_device *i3c = dev_to_i3cdev(dev); + struct i3c_priv_xfer xfers[] = { + { + .rnw = false, + .len = count, + .data.out = data, + }, + }; + + return i3c_device_do_priv_xfers(i3c, xfers, 1); +} + +static int regmap_i3c_read(void *context, + const void *reg, size_t reg_size, + void *val, size_t val_size) +{ + struct device *dev = context; + struct i3c_device *i3c = dev_to_i3cdev(dev); + struct i3c_priv_xfer xfers[2]; + + xfers[0].rnw = false; + xfers[0].len = reg_size; + xfers[0].data.out = reg; + + xfers[1].rnw = true; + xfers[1].len = val_size; + xfers[1].data.in = val; + + return i3c_device_do_priv_xfers(i3c, xfers, 2); +} + +static struct regmap_bus regmap_i3c = { + .write = regmap_i3c_write, + .read = regmap_i3c_read, +}; + +struct regmap *__devm_regmap_init_i3c(struct i3c_device *i3c, + const struct regmap_config *config, + struct lock_class_key *lock_key, + const char *lock_name) +{ + return __devm_regmap_init(&i3c->dev, ®map_i3c, &i3c->dev, config, + lock_key, lock_name); +} +EXPORT_SYMBOL_GPL(__devm_regmap_init_i3c); + +MODULE_AUTHOR("Vitor Soares "); +MODULE_DESCRIPTION("Regmap I3C Module"); +MODULE_LICENSE("GPL v2"); diff --git a/include/linux/regmap.h b/include/linux/regmap.h index daeec7d..f65984d 100644 --- a/include/linux/regmap.h +++ b/include/linux/regmap.h @@ -25,6 +25,7 @@ struct module; struct clk; struct device; struct i2c_client; +struct i3c_device; struct irq_domain; struct slim_device; struct spi_device; @@ -624,6 +625,10 @@ struct regmap *__devm_regmap_init_slimbus(struct slim_device *slimbus, const struct regmap_config *config, struct lock_class_key *lock_key, const char *lock_name); +struct regmap *__devm_regmap_init_i3c(struct i3c_device *i3c, + const struct regmap_config *config, + struct lock_class_key *lock_key, + const char *lock_name); /* * Wrapper for regmap_init macros to include a unique lockdep key and name * for each call. No-op if CONFIG_LOCKDEP is not set. @@ -982,6 +987,21 @@ bool regmap_ac97_default_volatile(struct device *dev, unsigned int reg); #define devm_regmap_init_slimbus(slimbus, config) \ __regmap_lockdep_wrapper(__devm_regmap_init_slimbus, #config, \ slimbus, config) + +/** + * devm_regmap_init_i3c() - Initialise managed register map + * + * @i3c: Device that will be interacted with + * @config: Configuration for register map + * + * The return value will be an ERR_PTR() on error or a valid pointer + * to a struct regmap. The regmap will be automatically freed by the + * device management code. + */ +#define devm_regmap_init_i3c(i3c, config) \ + __regmap_lockdep_wrapper(__devm_regmap_init_i3c, #config, \ + i3c, config) + int regmap_mmio_attach_clk(struct regmap *map, struct clk *clk); void regmap_mmio_detach_clk(struct regmap *map); void regmap_exit(struct regmap *map); From patchwork Thu Jun 6 15:12:03 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vitor Soares X-Patchwork-Id: 10979767 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id CBAE576 for ; Thu, 6 Jun 2019 15:12:21 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id BA59D28420 for ; Thu, 6 Jun 2019 15:12:21 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id AE1B428528; Thu, 6 Jun 2019 15:12:21 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.0 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 497E228420 for ; Thu, 6 Jun 2019 15:12:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729182AbfFFPMM (ORCPT ); Thu, 6 Jun 2019 11:12:12 -0400 Received: from dc8-smtprelay2.synopsys.com ([198.182.47.102]:40300 "EHLO smtprelay-out1.synopsys.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1728812AbfFFPML (ORCPT ); Thu, 6 Jun 2019 11:12:11 -0400 Received: from mailhost.synopsys.com (unknown [10.225.0.210]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) (No client certificate requested) by smtprelay-out1.synopsys.com (Postfix) with ESMTPS id 9DBF9C0B59; Thu, 6 Jun 2019 15:12:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=synopsys.com; s=mail; t=1559833942; bh=+7+5ObOc7gxS4v0EaTYk0LsyMtKGB6jikkVK2HcAVnU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:In-Reply-To: References:From; b=bwshtbRgM1A3pmPkIenFpKszEIHXHty90zKvVrCs9P8ZrOutl1tmnXQyCP5qNoMJ1 K12aDk3pPTLUOkygUkq9oYTgQZV7vnPt7P+L1cJ3+Maol3iKz3AEenl6WooXAM8Ist GJlHzOnqKh69Dcc9iV9f5BbXQ5szeKp97e+ptvxp+TfMBM3P9qPfhLra8r+YgQILtY elN5BSZGTc/XkkrjWg4nSil53usiI9rvovi08/5du6YOCrPvWjBGZ0Q9XykclDUkl2 WB8WZ3983Nx7EuJ1U/VDCsDFCb3NxV8bzatxYdI5tSMD+qodxvKbunoKdOsHfRF17w LnnMO+NhWxIYw== Received: from de02.synopsys.com (germany.internal.synopsys.com [10.225.17.21]) by mailhost.synopsys.com (Postfix) with ESMTP id B34A3A022F; Thu, 6 Jun 2019 15:12:08 +0000 (UTC) Received: from de02dwia024.internal.synopsys.com (de02dwia024.internal.synopsys.com [10.225.19.81]) by de02.synopsys.com (Postfix) with ESMTP id 98F4C3FED2; Thu, 6 Jun 2019 17:12:08 +0200 (CEST) From: Vitor Soares To: linux-iio@vger.kernel.org, linux-i2c@vger.kernel.org, linux-i3c@lists.infradead.org, linux-kernel@vger.kernel.org Cc: broonie@kernel.org, gregkh@linuxfoundation.org, rafael@kernel.org, bbrezillon@kernel.org, Joao.Pinto@synopsys.com, lorenzo.bianconi83@gmail.com, Vitor Soares Subject: [PATCH v2 2/3] i3c: add i3c_get_device_id helper Date: Thu, 6 Jun 2019 17:12:03 +0200 Message-Id: X-Mailer: git-send-email 2.7.4 In-Reply-To: References: In-Reply-To: References: Sender: linux-iio-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-iio@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP This helper return the i3c_device_id structure in order the client have access to the driver data. Signed-off-by: Vitor Soares --- Changes in v2: move this function to drivers/i3c/device.c drivers/i3c/device.c | 8 ++++++++ include/linux/i3c/device.h | 1 + 2 files changed, 9 insertions(+) diff --git a/drivers/i3c/device.c b/drivers/i3c/device.c index 69cc040..a6d0796 100644 --- a/drivers/i3c/device.c +++ b/drivers/i3c/device.c @@ -200,6 +200,14 @@ struct i3c_device *dev_to_i3cdev(struct device *dev) } EXPORT_SYMBOL_GPL(dev_to_i3cdev); +const struct i3c_device_id *i3c_get_device_id(struct i3c_device *i3cdev) +{ + const struct i3c_driver *i3cdrv = drv_to_i3cdrv(i3cdev->dev.driver); + + return i3cdrv->id_table; +} +EXPORT_SYMBOL_GPL(i3c_get_device_id); + /** * i3c_driver_register_with_owner() - register an I3C device driver * diff --git a/include/linux/i3c/device.h b/include/linux/i3c/device.h index 5ecb055..e0415e1 100644 --- a/include/linux/i3c/device.h +++ b/include/linux/i3c/device.h @@ -187,6 +187,7 @@ static inline struct i3c_driver *drv_to_i3cdrv(struct device_driver *drv) struct device *i3cdev_to_dev(struct i3c_device *i3cdev); struct i3c_device *dev_to_i3cdev(struct device *dev); +const struct i3c_device_id *i3c_get_device_id(struct i3c_device *i3cdev); static inline void i3cdev_set_drvdata(struct i3c_device *i3cdev, void *data) From patchwork Thu Jun 6 15:12:04 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vitor Soares X-Patchwork-Id: 10979769 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 66CF617D2 for ; Thu, 6 Jun 2019 15:12:22 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 56CA228420 for ; Thu, 6 Jun 2019 15:12:22 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 4A00828468; Thu, 6 Jun 2019 15:12:22 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.0 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id C7E3D28538 for ; Thu, 6 Jun 2019 15:12:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729178AbfFFPMM (ORCPT ); Thu, 6 Jun 2019 11:12:12 -0400 Received: from dc8-smtprelay2.synopsys.com ([198.182.47.102]:40310 "EHLO smtprelay-out1.synopsys.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1729177AbfFFPML (ORCPT ); Thu, 6 Jun 2019 11:12:11 -0400 Received: from mailhost.synopsys.com (unknown [10.225.0.210]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) (No client certificate requested) by smtprelay-out1.synopsys.com (Postfix) with ESMTPS id B578FC0B64; Thu, 6 Jun 2019 15:12:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=synopsys.com; s=mail; t=1559833942; bh=jM9ph8Q1jXe7PJYG4xjS+TXRntdxVTy03U6MXEGDLRM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:In-Reply-To: References:From; b=XDtndeUY5jKlNe2GQu4tZvOLWoahljbxjXiXSWBK0V9iGYIWZGLvSMNEO7FC8llDc rrhn3b+Ov0OFU//1kGM4diA0p1lvZg8KuTgHmZJDjetEx5CvS/QDMCYImEAWOIzUA4 bpWZIrhrjwkCdXrDvTA+D5WSxACtzFYi5r0E9sXNf0318T3fQ9bu7yuxk1mP1phuDd auRIxEgQwaoC0NpF7qgHfyFS2jXW4RYipKx3rtzla73EYsondD+kCQqyR6jMIs4+ip 3W2nUVWPgNEollCsIqfgnLHtD/fCo8wWXbQ4Jx8zXA6RHVHc3K3OkBrhp+HFu1zSzx Rixsisa9TCVVQ== Received: from de02.synopsys.com (germany.internal.synopsys.com [10.225.17.21]) by mailhost.synopsys.com (Postfix) with ESMTP id 8C43AA0230; Thu, 6 Jun 2019 15:12:09 +0000 (UTC) Received: from de02dwia024.internal.synopsys.com (de02dwia024.internal.synopsys.com [10.225.19.81]) by de02.synopsys.com (Postfix) with ESMTP id 79A993FED6; Thu, 6 Jun 2019 17:12:09 +0200 (CEST) From: Vitor Soares To: linux-iio@vger.kernel.org, linux-i2c@vger.kernel.org, linux-i3c@lists.infradead.org, linux-kernel@vger.kernel.org Cc: broonie@kernel.org, gregkh@linuxfoundation.org, rafael@kernel.org, bbrezillon@kernel.org, Joao.Pinto@synopsys.com, lorenzo.bianconi83@gmail.com, Vitor Soares Subject: [PATCH v2 3/3] iio: imu: st_lsm6dsx: add i3c basic support for LSM6DSO and LSM6DSR Date: Thu, 6 Jun 2019 17:12:04 +0200 Message-Id: <6195f3cd21636a5f85c0107b5c3b217be868a4b9.1559831663.git.vitor.soares@synopsys.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: References: In-Reply-To: References: Sender: linux-iio-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-iio@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP For today the st_lsm6dsx driver support LSM6DSO and LSM6DSR sensor only in spi and i2c mode. The LSM6DSO and LSM6DSR are also i3c capable so lets give i3c support to them. Signed-off-by: Vitor Soares Acked-by: Lorenzo Bianconi --- Changes in v2: Add support for LSM6DSR Set pm_ops to st_lsm6dsx_pm_ops drivers/iio/imu/st_lsm6dsx/Kconfig | 8 ++- drivers/iio/imu/st_lsm6dsx/Makefile | 1 + drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_i3c.c | 76 +++++++++++++++++++++++++++++ 3 files changed, 84 insertions(+), 1 deletion(-) create mode 100644 drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_i3c.c diff --git a/drivers/iio/imu/st_lsm6dsx/Kconfig b/drivers/iio/imu/st_lsm6dsx/Kconfig index 002a423..8115936 100644 --- a/drivers/iio/imu/st_lsm6dsx/Kconfig +++ b/drivers/iio/imu/st_lsm6dsx/Kconfig @@ -2,11 +2,12 @@ config IIO_ST_LSM6DSX tristate "ST_LSM6DSx driver for STM 6-axis IMU MEMS sensors" - depends on (I2C || SPI) + depends on (I2C || SPI || I3C) select IIO_BUFFER select IIO_KFIFO_BUF select IIO_ST_LSM6DSX_I2C if (I2C) select IIO_ST_LSM6DSX_SPI if (SPI_MASTER) + select IIO_ST_LSM6DSX_I3C if (I3C) help Say yes here to build support for STMicroelectronics LSM6DSx imu sensor. Supported devices: lsm6ds3, lsm6ds3h, lsm6dsl, lsm6dsm, @@ -24,3 +25,8 @@ config IIO_ST_LSM6DSX_SPI tristate depends on IIO_ST_LSM6DSX select REGMAP_SPI + +config IIO_ST_LSM6DSX_I3C + tristate + depends on IIO_ST_LSM6DSX + select REGMAP_I3C diff --git a/drivers/iio/imu/st_lsm6dsx/Makefile b/drivers/iio/imu/st_lsm6dsx/Makefile index 28cc673..57cbcd6 100644 --- a/drivers/iio/imu/st_lsm6dsx/Makefile +++ b/drivers/iio/imu/st_lsm6dsx/Makefile @@ -5,3 +5,4 @@ st_lsm6dsx-y := st_lsm6dsx_core.o st_lsm6dsx_buffer.o \ obj-$(CONFIG_IIO_ST_LSM6DSX) += st_lsm6dsx.o obj-$(CONFIG_IIO_ST_LSM6DSX_I2C) += st_lsm6dsx_i2c.o obj-$(CONFIG_IIO_ST_LSM6DSX_SPI) += st_lsm6dsx_spi.o +obj-$(CONFIG_IIO_ST_LSM6DSX_I3C) += st_lsm6dsx_i3c.o diff --git a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_i3c.c b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_i3c.c new file mode 100644 index 0000000..70b70d1 --- /dev/null +++ b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_i3c.c @@ -0,0 +1,76 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (c) 2018 Synopsys, Inc. and/or its affiliates. + * + * Author: Vitor Soares + */ + +#include +#include +#include +#include +#include +#include +#include + +#include "st_lsm6dsx.h" + +#define NAME_SIZE 32 + +struct st_lsm6dsx_i3c_data { + const char name[NAME_SIZE]; + enum st_lsm6dsx_hw_id id; +}; + +enum st_lsm6dsx_i3c_data_id { + ST_LSM6DSO_I3C_DATA_ID, + ST_LSM6DSR_I3C_DATA_ID, +}; + +static const struct st_lsm6dsx_i3c_data hw_data[] = { + { ST_LSM6DSO_DEV_NAME, ST_LSM6DSO_ID }, + { ST_LSM6DSR_DEV_NAME, ST_LSM6DSR_ID }, +}; + +static const struct regmap_config st_lsm6dsx_i3c_regmap_config = { + .reg_bits = 8, + .val_bits = 8, +}; + +static int st_lsm6dsx_i3c_probe(struct i3c_device *i3cdev) +{ + const struct i3c_device_id *id = i3c_get_device_id(i3cdev); + const struct st_lsm6dsx_i3c_data *hw_data = id->data; + struct regmap *regmap; + + regmap = devm_regmap_init_i3c(i3cdev, &st_lsm6dsx_i3c_regmap_config); + if (IS_ERR(regmap)) { + dev_err(&i3cdev->dev, "Failed to register i3c regmap %d\n", + (int)PTR_ERR(regmap)); + return PTR_ERR(regmap); + } + + return st_lsm6dsx_probe(&i3cdev->dev, 0, hw_data->id, + hw_data->name, regmap); +} + +static const struct i3c_device_id st_lsm6dsx_i3c_ids[] = { + I3C_DEVICE(0x0104, 0x006C, &hw_data[ST_LSM6DSO_I3C_DATA_ID]), + I3C_DEVICE(0x0104, 0x006B, &hw_data[ST_LSM6DSR_I3C_DATA_ID]), + { /* sentinel */ }, +}; +MODULE_DEVICE_TABLE(i3c, st_lsm6dsx_i3c_ids); + +static struct i3c_driver st_lsm6dsx_driver = { + .driver = { + .name = "st_lsm6dsx_i3c", + .pm = &st_lsm6dsx_pm_ops, + }, + .probe = st_lsm6dsx_i3c_probe, + .id_table = st_lsm6dsx_i3c_ids, +}; +module_i3c_driver(st_lsm6dsx_driver); + +MODULE_AUTHOR("Vitor Soares "); +MODULE_DESCRIPTION("STMicroelectronics st_lsm6dsx i3c driver"); +MODULE_LICENSE("GPL v2");