From patchwork Mon Apr 15 19:19:39 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vitor Soares X-Patchwork-Id: 10902749 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 E3CD01932 for ; Tue, 16 Apr 2019 11:12:29 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id BA1832898C for ; Tue, 16 Apr 2019 11:12:29 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id B839C28999; Tue, 16 Apr 2019 11:12:29 +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=-5.2 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED autolearn=unavailable version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 2A9952898C for ; Tue, 16 Apr 2019 11:12:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:References: In-Reply-To:Message-Id:Date:Subject:To:From:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Owner; bh=Wpsu3blSUKMkWwhsktfz/2v+Abihz1sX3r4die9VWrA=; b=CbDp8OrwG9FdiccDWD+pbvk87C Bq6cqy3Q7fHfKb8OEFFm91iLWuqxpodeS2l0MzXN0GvvaRvfuvzQslr3V9vDP07IxQDp7MjWxlg8Q A5+AqZcdJEf9VywnSq2CXkEa2m1JyrTATa+HdKCde9zXo0eIXJ1uVJ2BmHwwjHM+7eUY+OcYqiXVd VDFIdYyFRWT3n+p8oTTbds18DR1yolOQ4wVfazV2DeOtppFJaaa6Oc1BDOnHHA2reNZ5yOxRXFqrt LrwYXj6juPm8FtAI1ii3d8eDdkuMz8opCbuSIQuq1o0LyRgvCP2tEmPKu1gGiPBpI1MkzxAM30P1h iPBVTK1g==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1hGM0p-0001FC-HE; Tue, 16 Apr 2019 11:12:27 +0000 Received: from us01smtprelay-2.synopsys.com ([198.182.60.111] helo=smtprelay.synopsys.com) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1hG79T-0001QD-Sw for linux-i3c@lists.infradead.org; Mon, 15 Apr 2019 19:20:27 +0000 Received: from mailhost1.synopsys.com (mailhost1.synopsys.com [10.12.238.239]) by smtprelay.synopsys.com (Postfix) with ESMTP id C502D10C12A7; Mon, 15 Apr 2019 12:20:23 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=synopsys.com; s=mail; t=1555356023; bh=XE5KlxeBcaMGeU9oOTfynmEvKq//ui0hxk9gOzVB3Eg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:In-Reply-To: References:From; b=D5SdTRYtiO+kOXffAiHnBKZq2L2kxq2xUsZz2li1FdjcplgyPTEd87I7TlhHCMk89 tqcxVSlTmzqztL9wh7KaRnvGR0EBlKh75QCm69HOA8Rflgzig2ITRMyJZo0l7GivuD cB4HBTR4ipiiywbnE8V/Mpl/RvkcugKqWz8U+sUEI0bqTofQl3g4T2e5rAfIenL6i0 77tvlptykrj34xf9WpfKQHk3CybxmrBgZ+FdxJeOSuNnSY0JvMJgPu5R5RpCWzS3I9 ga1zt1udot3FD/PfqZElz3YjPNrS/GpRNqeSUTPpyPIjP8WEs6UfscVGNxoRVZhUnG mZM3b+zqwalYw== Received: from de02dwia024.internal.synopsys.com (de02dwia024.internal.synopsys.com [10.225.19.81]) by mailhost1.synopsys.com (Postfix) with ESMTP id DAA0B546A; Mon, 15 Apr 2019 12:19:50 -0700 (PDT) From: Vitor Soares To: linux-iio@vger.kernel.org, linux-i3c@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH 1/3] remap: Add I3C bus support Date: Mon, 15 Apr 2019 21:19:39 +0200 Message-Id: X-Mailer: git-send-email 2.7.4 In-Reply-To: References: In-Reply-To: References: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190415_122023_936627_B10A9697 X-CRM114-Status: GOOD ( 14.86 ) X-Mailman-Approved-At: Tue, 16 Apr 2019 04:12:26 -0700 X-BeenThere: linux-i3c@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: Linux I3C List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: lars@metafoo.de, bbrezillon@kernel.org, gregkh@linuxfoundation.org, joao.pinto@synopsys.com, rafael@kernel.org, Vitor Soares , broonie@kernel.org, pmeerw@pmeerw.net, knaack.h@gmx.de, lorenzo.bianconi83@gmail.com, jic23@kernel.org MIME-Version: 1.0 Sender: "linux-i3c" Errors-To: linux-i3c-bounces+linux-i3c=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP Add basic support for I3C bus. This is a simple implementation that only give support for Read and Write commands. Signed-off-by: Vitor Soares --- drivers/base/regmap/Kconfig | 6 +++- drivers/base/regmap/Makefile | 1 + drivers/base/regmap/regmap-i3c.c | 62 ++++++++++++++++++++++++++++++++++++++++ include/linux/regmap.h | 20 +++++++++++++ 4 files changed, 88 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..565997b --- /dev/null +++ b/drivers/base/regmap/regmap-i3c.c @@ -0,0 +1,62 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (c) 2018 Synopsys, Inc. and/or its affiliates. + * + * Author: Vitor Soares + */ + +#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_LICENSE("GPL"); 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 Mon Apr 15 19:19:40 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vitor Soares X-Patchwork-Id: 10902745 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 2C216161F for ; Tue, 16 Apr 2019 11:12:29 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 094E12898D for ; Tue, 16 Apr 2019 11:12:29 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id F128B289B7; Tue, 16 Apr 2019 11:12:28 +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=-5.2 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 2E0592898D for ; Tue, 16 Apr 2019 11:12:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:References: In-Reply-To:Message-Id:Date:Subject:To:From:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Owner; bh=IjOdWiwDK3bt3icdUTVr5EjqgfM+9Lck+OE0fiunz4o=; b=LWRlDKgdfNMP2KjCZgK4jevLeD Q810kKpCvkV4F07Q5M7yBMY3X6LNlTMZXD5G2LMVPtZcmGwK0l207Sstoa5gaNH17Z7pmtbUa15PJ hkUMB+Ue2ZoPfiyDcgI42SJ13rZeX+kRC1vbMYRWsELlc1XfP+p7J1wGlQQO40WybBgG+21EO5AKY JoZIlgH8kRhGw+cXNrWcVJXAGLzvbHGkQBaD6dcvXKDw5Cwf5quBhLIZqf1NaAzv1fIC3i8U4aiW9 FMuOwUUTVfBhyoNfEABxghPhCRLEfj2Ht0C7kNlnmwsLQNKQXmaPgsEHf2do5LF/8GVHM5d2DpR8e s+T9P4cw==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1hGM0p-0001FG-KW; Tue, 16 Apr 2019 11:12:27 +0000 Received: from smtprelay.synopsys.com ([198.182.60.111]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1hG79Y-0001Qu-9E for linux-i3c@lists.infradead.org; Mon, 15 Apr 2019 19:20:29 +0000 Received: from mailhost1.synopsys.com (mailhost1.synopsys.com [10.12.238.239]) by smtprelay.synopsys.com (Postfix) with ESMTP id 2E75310C0B68; Mon, 15 Apr 2019 12:20:28 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=synopsys.com; s=mail; t=1555356028; bh=PD9Bd2KLbPnyLJM4lKAMFHF/QND4G0ncjh4jLufAdsQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:In-Reply-To: References:From; b=Y96GlD/FJThumDKKCzLycHo6EZw2PPxmgEo6K/WRuNifc/MwfLwIAODGnl6L2DC/x ZKesFFTO1M127wT3eYVvCrrIuFwqHimTBzK0SCGjc9Xcx7SbzmVsfix8/mnzWcpELM Cqe1J04YvBJXRK2fH5s16Gadjsi8kHeIHEo7HImc1P3m6oMuyYwlpsHQp9hdJYaeOL 77+/jj5nG5qVq2U/hgu2W2mee9ys3tejIXu5TMt27UGXd2rT9s8XMLQcXxXqmcHwJP nKjYRp0vbGeKqUTmav/rQER5HbFLfi8wMiBHhjTnEjg4PsYFN3H/ZLAxxDUdJJ39vi KVIuoZkdjGePg== Received: from de02dwia024.internal.synopsys.com (de02dwia024.internal.synopsys.com [10.225.19.81]) by mailhost1.synopsys.com (Postfix) with ESMTP id 57D3F546D; Mon, 15 Apr 2019 12:19:55 -0700 (PDT) From: Vitor Soares To: linux-iio@vger.kernel.org, linux-i3c@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH 2/3] i3c: Add i3c_get_device_id helper Date: Mon, 15 Apr 2019 21:19:40 +0200 Message-Id: <33ba7e13816fcece0a2f7ec917c18807359c16c7.1555354268.git.vitor.soares@synopsys.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: References: In-Reply-To: References: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190415_122028_323863_A150D26C X-CRM114-Status: UNSURE ( 9.42 ) X-CRM114-Notice: Please train this message. X-Mailman-Approved-At: Tue, 16 Apr 2019 04:12:27 -0700 X-BeenThere: linux-i3c@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: Linux I3C List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: lars@metafoo.de, bbrezillon@kernel.org, gregkh@linuxfoundation.org, joao.pinto@synopsys.com, rafael@kernel.org, Vitor Soares , broonie@kernel.org, pmeerw@pmeerw.net, knaack.h@gmx.de, lorenzo.bianconi83@gmail.com, jic23@kernel.org MIME-Version: 1.0 Sender: "linux-i3c" Errors-To: linux-i3c-bounces+linux-i3c=patchwork.kernel.org@lists.infradead.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 --- 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 472be99..8ab8e4c 100644 --- a/drivers/i3c/device.c +++ b/drivers/i3c/device.c @@ -235,6 +235,14 @@ 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 7ee7e30..ee48886 100644 --- a/include/linux/i3c/device.h +++ b/include/linux/i3c/device.h @@ -211,6 +211,7 @@ 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 Mon Apr 15 19:19:41 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vitor Soares X-Patchwork-Id: 10902743 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 5ABF714DB for ; Tue, 16 Apr 2019 11:12:29 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 369C82898B for ; Tue, 16 Apr 2019 11:12:29 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 2B07D2899B; Tue, 16 Apr 2019 11:12:29 +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=-5.2 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED autolearn=unavailable version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 4FB4F28995 for ; 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Mon, 15 Apr 2019 12:19:58 -0700 (PDT) From: Vitor Soares To: linux-iio@vger.kernel.org, linux-i3c@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH 3/3] iio: imu: st_lsm6dsx: Add i3c basic support Date: Mon, 15 Apr 2019 21:19:41 +0200 Message-Id: <302f8296299d6cd25b3689f5eca1c510a3290db3.1555354268.git.vitor.soares@synopsys.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: References: In-Reply-To: References: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190415_122032_051139_B7B0C895 X-CRM114-Status: GOOD ( 13.97 ) X-Mailman-Approved-At: Tue, 16 Apr 2019 04:12:27 -0700 X-BeenThere: linux-i3c@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: Linux I3C List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: lars@metafoo.de, bbrezillon@kernel.org, gregkh@linuxfoundation.org, joao.pinto@synopsys.com, rafael@kernel.org, Vitor Soares , broonie@kernel.org, pmeerw@pmeerw.net, knaack.h@gmx.de, lorenzo.bianconi83@gmail.com, jic23@kernel.org MIME-Version: 1.0 Sender: "linux-i3c" Errors-To: linux-i3c-bounces+linux-i3c=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP For today the st_lsm6dsx driver support lsm6dso sensor only in spi and i2c mode. The lsm6dso is also i3c capable so lets give i3c support to it. Signed-off-by: Vitor Soares --- drivers/iio/imu/st_lsm6dsx/Kconfig | 8 +++- drivers/iio/imu/st_lsm6dsx/Makefile | 1 + drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_i3c.c | 67 +++++++++++++++++++++++++++++ 3 files changed, 75 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 094fd00..1ab9bbf 100644 --- a/drivers/iio/imu/st_lsm6dsx/Kconfig +++ b/drivers/iio/imu/st_lsm6dsx/Kconfig @@ -1,11 +1,12 @@ 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, @@ -23,3 +24,8 @@ 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 e5f733c..c676965 100644 --- a/drivers/iio/imu/st_lsm6dsx/Makefile +++ b/drivers/iio/imu/st_lsm6dsx/Makefile @@ -4,3 +4,4 @@ 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..2df5e70 --- /dev/null +++ b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_i3c.c @@ -0,0 +1,67 @@ +// 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 { + char name[NAME_SIZE]; + enum st_lsm6dsx_hw_id id; +}; + +static const struct st_lsm6dsx_i3c_data hw_data[] = { + { ST_LSM6DSO_DEV_NAME, ST_LSM6DSO_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[0]), + { /* sentinel */ }, +}; +MODULE_DEVICE_TABLE(i3c, st_lsm6dsx_i3c_ids); + +static struct i3c_driver st_lsm6dsx_driver = { + .driver.name = "st_lsm6dsx_i3c", + .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");