From patchwork Sat Jan 26 17:34:00 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Shreeya Patel X-Patchwork-Id: 10782549 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 8589B13BF for ; Sat, 26 Jan 2019 17:34:20 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 6ABA12C737 for ; Sat, 26 Jan 2019 17:34:20 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 5C5722DB0D; Sat, 26 Jan 2019 17:34:20 +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,FREEMAIL_FROM,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 D2D7C2C737 for ; Sat, 26 Jan 2019 17:34:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726291AbfAZReT (ORCPT ); Sat, 26 Jan 2019 12:34:19 -0500 Received: from mail-pl1-f194.google.com ([209.85.214.194]:34051 "EHLO mail-pl1-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726070AbfAZReT (ORCPT ); Sat, 26 Jan 2019 12:34:19 -0500 Received: by mail-pl1-f194.google.com with SMTP id w4so5948583plz.1; Sat, 26 Jan 2019 09:34:18 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:subject:date:message-id:in-reply-to:references; bh=2dxEL6dV0ZDce8tRbxit7cjqI9FDoXF1XNivCFZ0gPg=; b=aJTz27X392KXMqkMOGikGpAFmvUV4YF/m8hmR/92vfW4nwe8lO56bshqSf2mvDHc6y yUUCm+bLkJf1GuwygRPi4scJcAM900j+CdIyD4k7eIcPQSpjBYwnCBygHULokX0MITjm rwUCi4a0FIHbSN/tiVV+yu+g9tm+Xj7oenteEcKX1Osmo7tT9AYAjK6fiiph9y4aQVyM xTACqEZa9ElBDeM9LyL6L4boIwhZKmlS/QL/GrhkT/oQTebf3EkZFPR5GVrGWW6UXgNW 3iRJJ4SHW3tTnewT4nk6KK0mshXMfCeEMGXPcWD7+KtyxEnclU0WJfr00UtM1UxIgvXA KLqg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:subject:date:message-id:in-reply-to :references; bh=2dxEL6dV0ZDce8tRbxit7cjqI9FDoXF1XNivCFZ0gPg=; b=jYnQuM1kBuxBjvULC0cCJsnJ/eKHsntqu7E3Zcr6TpNqtHRttZN6oYWlrHL64ZIwv0 S3Cfsxm3x9BZeZE2C1egla9g2lq0nq5jvcElB2SMqkTIILgyE10hgfPkNGkwvxpnVBUL 6wQsxMa+4cONGtuiJNic/5vvT5memT9eGnIc/dt0htbAAEryHJOQZQQlMKdE72sVg9SB WpGaVI+qPvpihdTOau8d/YofsQrssF3H65NrV30r934K6Q8gslpguxFGExGgUEzldRLN GPZ+jbjPDE016bg7WBp5COZDUmIHwaxDBLqPVtzSds4ApNLxOjsTGznqrni7cUHu/vto Er7A== X-Gm-Message-State: AJcUukc67MB8TBpXuD3e77T/ELXEDnVB7ZW41lcj2vPVxnha0UeBku/S ZG1mqRXcplsF9Fm3w4xdX6g= X-Google-Smtp-Source: ALg8bN6NLErLNkY8Aw+NokGk6wY9CdCwpHtGS+Lqf/760mY/doPYPEAOuE7vRjYu/hNjHas4hAOtpg== X-Received: by 2002:a17:902:bd0a:: with SMTP id p10mr15211155pls.322.1548524057860; Sat, 26 Jan 2019 09:34:17 -0800 (PST) Received: from localhost.localdomain ([49.32.227.18]) by smtp.gmail.com with ESMTPSA id a65sm28745690pge.65.2019.01.26.09.34.13 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sat, 26 Jan 2019 09:34:17 -0800 (PST) From: Shreeya Patel To: lars@metafoo.de, Michael.Hennerich@analog.com, jic23@kernel.org, knaack.h@gmx.de, pmeerw@pmeerw.net, gregkh@linuxfoundation.org, linux-iio@vger.kernel.org, devel@driverdev.osuosl.org, linux-kernel@vger.kernel.org, jeremyfertic@gmail.com, shreeya.patel23498@gmail.com Subject: [PATCH v4 1/3] Staging: iio: adt7316: Remove irq from bus structure Date: Sat, 26 Jan 2019 23:04:00 +0530 Message-Id: <20190126173402.12428-2-shreeya.patel23498@gmail.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190126173402.12428-1-shreeya.patel23498@gmail.com> References: <20190126173402.12428-1-shreeya.patel23498@gmail.com> 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 interrupt request is not needed to be present in the bus structure. It is a good option to pass it as a parameter in the probe function instead of having it in the bus structure. Signed-off-by: Shreeya Patel --- drivers/staging/iio/addac/adt7316-i2c.c | 3 +-- drivers/staging/iio/addac/adt7316-spi.c | 4 ++-- drivers/staging/iio/addac/adt7316.c | 15 +++++++-------- drivers/staging/iio/addac/adt7316.h | 3 +-- 4 files changed, 11 insertions(+), 14 deletions(-) diff --git a/drivers/staging/iio/addac/adt7316-i2c.c b/drivers/staging/iio/addac/adt7316-i2c.c index 0f26bc38edc6..9dfe3be21849 100644 --- a/drivers/staging/iio/addac/adt7316-i2c.c +++ b/drivers/staging/iio/addac/adt7316-i2c.c @@ -99,14 +99,13 @@ static int adt7316_i2c_probe(struct i2c_client *client, { struct adt7316_bus bus = { .client = client, - .irq = client->irq, .read = adt7316_i2c_read, .write = adt7316_i2c_write, .multi_read = adt7316_i2c_multi_read, .multi_write = adt7316_i2c_multi_write, }; - return adt7316_probe(&client->dev, &bus, id->name); + return adt7316_probe(&client->dev, &bus, id->name, client->irq); } static const struct i2c_device_id adt7316_i2c_id[] = { diff --git a/drivers/staging/iio/addac/adt7316-spi.c b/drivers/staging/iio/addac/adt7316-spi.c index 8294b9c1e3c2..ec4848acec9f 100644 --- a/drivers/staging/iio/addac/adt7316-spi.c +++ b/drivers/staging/iio/addac/adt7316-spi.c @@ -93,7 +93,6 @@ static int adt7316_spi_probe(struct spi_device *spi_dev) { struct adt7316_bus bus = { .client = spi_dev, - .irq = spi_dev->irq, .read = adt7316_spi_read, .write = adt7316_spi_write, .multi_read = adt7316_spi_multi_read, @@ -112,7 +111,8 @@ static int adt7316_spi_probe(struct spi_device *spi_dev) adt7316_spi_write(spi_dev, 0, 0); adt7316_spi_write(spi_dev, 0, 0); - return adt7316_probe(&spi_dev->dev, &bus, spi_dev->modalias); + return adt7316_probe(&spi_dev->dev, &bus, spi_dev->modalias, + spi_dev->irq); } static const struct spi_device_id adt7316_spi_id[] = { diff --git a/drivers/staging/iio/addac/adt7316.c b/drivers/staging/iio/addac/adt7316.c index 6f7891b567b9..7c4f84822c18 100644 --- a/drivers/staging/iio/addac/adt7316.c +++ b/drivers/staging/iio/addac/adt7316.c @@ -1799,12 +1799,12 @@ static irqreturn_t adt7316_event_handler(int irq, void *private) return IRQ_HANDLED; } -static int adt7316_setup_irq(struct iio_dev *indio_dev) +static int adt7316_setup_irq(struct iio_dev *indio_dev, int irq) { struct adt7316_chip_info *chip = iio_priv(indio_dev); int irq_type, ret; - irq_type = irqd_get_trigger_type(irq_get_irq_data(chip->bus.irq)); + irq_type = irqd_get_trigger_type(irq_get_irq_data(irq)); switch (irq_type) { case IRQF_TRIGGER_HIGH: @@ -1820,13 +1820,12 @@ static int adt7316_setup_irq(struct iio_dev *indio_dev) break; } - ret = devm_request_threaded_irq(&indio_dev->dev, chip->bus.irq, + ret = devm_request_threaded_irq(&indio_dev->dev, irq, NULL, adt7316_event_handler, irq_type | IRQF_ONESHOT, indio_dev->name, indio_dev); if (ret) { - dev_err(&indio_dev->dev, "failed to request irq %d\n", - chip->bus.irq); + dev_err(&indio_dev->dev, "failed to request irq %d\n", irq); return ret; } @@ -2126,7 +2125,7 @@ static const struct iio_info adt7516_info = { * device probe and remove */ int adt7316_probe(struct device *dev, struct adt7316_bus *bus, - const char *name) + const char *name, int irq) { struct adt7316_chip_info *chip; struct iio_dev *indio_dev; @@ -2179,8 +2178,8 @@ int adt7316_probe(struct device *dev, struct adt7316_bus *bus, indio_dev->name = name; indio_dev->modes = INDIO_DIRECT_MODE; - if (chip->bus.irq > 0) { - ret = adt7316_setup_irq(indio_dev); + if (irq > 0) { + ret = adt7316_setup_irq(indio_dev, irq); if (ret) return ret; } diff --git a/drivers/staging/iio/addac/adt7316.h b/drivers/staging/iio/addac/adt7316.h index 84ca4f6c88f5..03d5300a98cd 100644 --- a/drivers/staging/iio/addac/adt7316.h +++ b/drivers/staging/iio/addac/adt7316.h @@ -16,7 +16,6 @@ struct adt7316_bus { void *client; - int irq; int (*read)(void *client, u8 reg, u8 *data); int (*write)(void *client, u8 reg, u8 val); int (*multi_read)(void *client, u8 first_reg, u8 count, u8 *data); @@ -30,6 +29,6 @@ extern const struct dev_pm_ops adt7316_pm_ops; #define ADT7316_PM_OPS NULL #endif int adt7316_probe(struct device *dev, struct adt7316_bus *bus, - const char *name); + const char *name, int irq); #endif From patchwork Sat Jan 26 17:34:01 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Shreeya Patel X-Patchwork-Id: 10782551 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 BF65813BF for ; Sat, 26 Jan 2019 17:34:25 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id A44D42C737 for ; Sat, 26 Jan 2019 17:34:25 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 984F42DB0D; 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Sat, 26 Jan 2019 09:34:23 -0800 (PST) Received: from localhost.localdomain ([49.32.227.18]) by smtp.gmail.com with ESMTPSA id a65sm28745690pge.65.2019.01.26.09.34.18 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sat, 26 Jan 2019 09:34:22 -0800 (PST) From: Shreeya Patel To: lars@metafoo.de, Michael.Hennerich@analog.com, jic23@kernel.org, knaack.h@gmx.de, pmeerw@pmeerw.net, gregkh@linuxfoundation.org, linux-iio@vger.kernel.org, devel@driverdev.osuosl.org, linux-kernel@vger.kernel.org, jeremyfertic@gmail.com, shreeya.patel23498@gmail.com Subject: [PATCH v4 2/3] Staging: iio: adt7316: Remove multi read and write functions Date: Sat, 26 Jan 2019 23:04:01 +0530 Message-Id: <20190126173402.12428-3-shreeya.patel23498@gmail.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190126173402.12428-1-shreeya.patel23498@gmail.com> References: <20190126173402.12428-1-shreeya.patel23498@gmail.com> 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 Currently, adt7316 doesn't use multi read and multi write functions hence remove the redundant code and make the necessary changes in the code. Signed-off-by: Shreeya Patel --- drivers/staging/iio/addac/adt7316-i2c.c | 40 ------------------------- drivers/staging/iio/addac/adt7316-spi.c | 31 ++++--------------- drivers/staging/iio/addac/adt7316.h | 2 -- 3 files changed, 6 insertions(+), 67 deletions(-) diff --git a/drivers/staging/iio/addac/adt7316-i2c.c b/drivers/staging/iio/addac/adt7316-i2c.c index 9dfe3be21849..167eafe3dd8c 100644 --- a/drivers/staging/iio/addac/adt7316-i2c.c +++ b/drivers/staging/iio/addac/adt7316-i2c.c @@ -52,44 +52,6 @@ static int adt7316_i2c_write(void *client, u8 reg, u8 data) return ret; } -static int adt7316_i2c_multi_read(void *client, u8 reg, u8 count, u8 *data) -{ - struct i2c_client *cl = client; - int i, ret; - - if (count > ADT7316_REG_MAX_ADDR) - count = ADT7316_REG_MAX_ADDR; - - for (i = 0; i < count; i++) { - ret = adt7316_i2c_read(cl, reg, &data[i]); - if (ret < 0) { - dev_err(&cl->dev, "I2C multi read error\n"); - return ret; - } - } - - return 0; -} - -static int adt7316_i2c_multi_write(void *client, u8 reg, u8 count, u8 *data) -{ - struct i2c_client *cl = client; - int i, ret; - - if (count > ADT7316_REG_MAX_ADDR) - count = ADT7316_REG_MAX_ADDR; - - for (i = 0; i < count; i++) { - ret = adt7316_i2c_write(cl, reg, data[i]); - if (ret < 0) { - dev_err(&cl->dev, "I2C multi write error\n"); - return ret; - } - } - - return 0; -} - /* * device probe and remove */ @@ -101,8 +63,6 @@ static int adt7316_i2c_probe(struct i2c_client *client, .client = client, .read = adt7316_i2c_read, .write = adt7316_i2c_write, - .multi_read = adt7316_i2c_multi_read, - .multi_write = adt7316_i2c_multi_write, }; return adt7316_probe(&client->dev, &bus, id->name, client->irq); diff --git a/drivers/staging/iio/addac/adt7316-spi.c b/drivers/staging/iio/addac/adt7316-spi.c index ec4848acec9f..06c943c2cc01 100644 --- a/drivers/staging/iio/addac/adt7316-spi.c +++ b/drivers/staging/iio/addac/adt7316-spi.c @@ -23,15 +23,12 @@ * adt7316 register access by SPI */ -static int adt7316_spi_multi_read(void *client, u8 reg, u8 count, u8 *data) +static int adt7316_spi_read(void *client, u8 reg, u8 *data) { struct spi_device *spi_dev = client; u8 cmd[2]; int ret; - if (count > ADT7316_REG_MAX_ADDR) - count = ADT7316_REG_MAX_ADDR; - cmd[0] = ADT7316_SPI_CMD_WRITE; cmd[1] = reg; @@ -43,7 +40,7 @@ static int adt7316_spi_multi_read(void *client, u8 reg, u8 count, u8 *data) cmd[0] = ADT7316_SPI_CMD_READ; - ret = spi_write_then_read(spi_dev, cmd, 1, data, count); + ret = spi_write_then_read(spi_dev, cmd, 1, data, 1); if (ret < 0) { dev_err(&spi_dev->dev, "SPI read data error\n"); return ret; @@ -52,21 +49,17 @@ static int adt7316_spi_multi_read(void *client, u8 reg, u8 count, u8 *data) return 0; } -static int adt7316_spi_multi_write(void *client, u8 reg, u8 count, u8 *data) +static int adt7316_spi_write(void *client, u8 reg, u8 val) { struct spi_device *spi_dev = client; u8 buf[ADT7316_REG_MAX_ADDR + 2]; - int i, ret; - - if (count > ADT7316_REG_MAX_ADDR) - count = ADT7316_REG_MAX_ADDR; + int ret = 0; buf[0] = ADT7316_SPI_CMD_WRITE; buf[1] = reg; - for (i = 0; i < count; i++) - buf[i + 2] = data[i]; + buf[2] = val; - ret = spi_write(spi_dev, buf, count + 2); + ret = spi_write(spi_dev, buf, 3); if (ret < 0) { dev_err(&spi_dev->dev, "SPI write error\n"); return ret; @@ -75,16 +68,6 @@ static int adt7316_spi_multi_write(void *client, u8 reg, u8 count, u8 *data) return ret; } -static int adt7316_spi_read(void *client, u8 reg, u8 *data) -{ - return adt7316_spi_multi_read(client, reg, 1, data); -} - -static int adt7316_spi_write(void *client, u8 reg, u8 val) -{ - return adt7316_spi_multi_write(client, reg, 1, &val); -} - /* * device probe and remove */ @@ -95,8 +78,6 @@ static int adt7316_spi_probe(struct spi_device *spi_dev) .client = spi_dev, .read = adt7316_spi_read, .write = adt7316_spi_write, - .multi_read = adt7316_spi_multi_read, - .multi_write = adt7316_spi_multi_write, }; /* don't exceed max specified SPI CLK frequency */ diff --git a/drivers/staging/iio/addac/adt7316.h b/drivers/staging/iio/addac/adt7316.h index 03d5300a98cd..e9f288420234 100644 --- a/drivers/staging/iio/addac/adt7316.h +++ b/drivers/staging/iio/addac/adt7316.h @@ -18,8 +18,6 @@ struct adt7316_bus { void *client; int (*read)(void *client, u8 reg, u8 *data); int (*write)(void *client, u8 reg, u8 val); - int (*multi_read)(void *client, u8 first_reg, u8 count, u8 *data); - int (*multi_write)(void *client, u8 first_reg, u8 count, u8 *data); }; #ifdef CONFIG_PM_SLEEP From patchwork Sat Jan 26 17:34:02 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Shreeya Patel X-Patchwork-Id: 10782553 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 CECE913BF for ; Sat, 26 Jan 2019 17:34:31 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id B13E92C737 for ; Sat, 26 Jan 2019 17:34:31 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id A40592DB0D; Sat, 26 Jan 2019 17:34:31 +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,FREEMAIL_FROM,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 4D3732C737 for ; 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Sat, 26 Jan 2019 09:34:27 -0800 (PST) From: Shreeya Patel To: lars@metafoo.de, Michael.Hennerich@analog.com, jic23@kernel.org, knaack.h@gmx.de, pmeerw@pmeerw.net, gregkh@linuxfoundation.org, linux-iio@vger.kernel.org, devel@driverdev.osuosl.org, linux-kernel@vger.kernel.org, jeremyfertic@gmail.com, shreeya.patel23498@gmail.com Subject: [PATCH v4 3/3] Staging: iio: adt7316: Add regmap support Date: Sat, 26 Jan 2019 23:04:02 +0530 Message-Id: <20190126173402.12428-4-shreeya.patel23498@gmail.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190126173402.12428-1-shreeya.patel23498@gmail.com> References: <20190126173402.12428-1-shreeya.patel23498@gmail.com> 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 Both i2c and spi drivers have functions for reading and writing to/from registers. Remove this redundant and common code by using regmap API. Signed-off-by: Shreeya Patel --- drivers/staging/iio/addac/adt7316-i2c.c | 56 +++------- drivers/staging/iio/addac/adt7316-spi.c | 74 +++---------- drivers/staging/iio/addac/adt7316.c | 134 ++++++++++++------------ drivers/staging/iio/addac/adt7316.h | 10 +- 4 files changed, 95 insertions(+), 179 deletions(-) diff --git a/drivers/staging/iio/addac/adt7316-i2c.c b/drivers/staging/iio/addac/adt7316-i2c.c index 167eafe3dd8c..435b65845174 100644 --- a/drivers/staging/iio/addac/adt7316-i2c.c +++ b/drivers/staging/iio/addac/adt7316-i2c.c @@ -12,60 +12,28 @@ #include #include #include +#include #include "adt7316.h" -/* - * adt7316 register access by I2C - */ -static int adt7316_i2c_read(void *client, u8 reg, u8 *data) -{ - struct i2c_client *cl = client; - int ret; - - ret = i2c_smbus_write_byte(cl, reg); - if (ret < 0) { - dev_err(&cl->dev, "I2C fail to select reg\n"); - return ret; - } - - ret = i2c_smbus_read_byte(client); - if (ret < 0) { - dev_err(&cl->dev, "I2C read error\n"); - return ret; - } - - *data = ret; - - return 0; -} - -static int adt7316_i2c_write(void *client, u8 reg, u8 data) -{ - struct i2c_client *cl = client; - int ret; - - ret = i2c_smbus_write_byte_data(cl, reg, data); - if (ret < 0) - dev_err(&cl->dev, "I2C write error\n"); - - return ret; -} - /* * device probe and remove */ - static int adt7316_i2c_probe(struct i2c_client *client, const struct i2c_device_id *id) { - struct adt7316_bus bus = { - .client = client, - .read = adt7316_i2c_read, - .write = adt7316_i2c_write, - }; + struct regmap *regmap; + + regmap = devm_regmap_init_i2c(client, &adt7316_regmap_config); + + if (IS_ERR(regmap)) { + dev_err(&client->dev, "Error initializing i2c regmap: %ld\n", + PTR_ERR(regmap)); + return PTR_ERR(regmap); + } - return adt7316_probe(&client->dev, &bus, id->name, client->irq); + return adt7316_probe(&client->dev, regmap, id ? id->name : NULL, + client->irq); } static const struct i2c_device_id adt7316_i2c_id[] = { diff --git a/drivers/staging/iio/addac/adt7316-spi.c b/drivers/staging/iio/addac/adt7316-spi.c index 06c943c2cc01..203b5c3ada6e 100644 --- a/drivers/staging/iio/addac/adt7316-spi.c +++ b/drivers/staging/iio/addac/adt7316-spi.c @@ -11,74 +11,19 @@ #include #include #include +#include #include #include "adt7316.h" #define ADT7316_SPI_MAX_FREQ_HZ 5000000 -#define ADT7316_SPI_CMD_READ 0x91 -#define ADT7316_SPI_CMD_WRITE 0x90 - -/* - * adt7316 register access by SPI - */ - -static int adt7316_spi_read(void *client, u8 reg, u8 *data) -{ - struct spi_device *spi_dev = client; - u8 cmd[2]; - int ret; - - cmd[0] = ADT7316_SPI_CMD_WRITE; - cmd[1] = reg; - - ret = spi_write(spi_dev, cmd, 2); - if (ret < 0) { - dev_err(&spi_dev->dev, "SPI fail to select reg\n"); - return ret; - } - - cmd[0] = ADT7316_SPI_CMD_READ; - - ret = spi_write_then_read(spi_dev, cmd, 1, data, 1); - if (ret < 0) { - dev_err(&spi_dev->dev, "SPI read data error\n"); - return ret; - } - - return 0; -} - -static int adt7316_spi_write(void *client, u8 reg, u8 val) -{ - struct spi_device *spi_dev = client; - u8 buf[ADT7316_REG_MAX_ADDR + 2]; - int ret = 0; - - buf[0] = ADT7316_SPI_CMD_WRITE; - buf[1] = reg; - buf[2] = val; - - ret = spi_write(spi_dev, buf, 3); - if (ret < 0) { - dev_err(&spi_dev->dev, "SPI write error\n"); - return ret; - } - - return ret; -} /* * device probe and remove */ - static int adt7316_spi_probe(struct spi_device *spi_dev) { - struct adt7316_bus bus = { - .client = spi_dev, - .read = adt7316_spi_read, - .write = adt7316_spi_write, - }; + struct regmap *regmap; /* don't exceed max specified SPI CLK frequency */ if (spi_dev->max_speed_hz > ADT7316_SPI_MAX_FREQ_HZ) { @@ -87,12 +32,19 @@ static int adt7316_spi_probe(struct spi_device *spi_dev) return -EINVAL; } + regmap = devm_regmap_init_spi(spi_dev, &adt7316_regmap_config); + if (IS_ERR(regmap)) { + dev_err(&spi_dev->dev, "Error initializing spi regmap: %ld\n", + PTR_ERR(regmap)); + return PTR_ERR(regmap); + } + /* switch from default I2C protocol to SPI protocol */ - adt7316_spi_write(spi_dev, 0, 0); - adt7316_spi_write(spi_dev, 0, 0); - adt7316_spi_write(spi_dev, 0, 0); + regmap_write(regmap, 0, 0); + regmap_write(regmap, 0, 0); + regmap_write(regmap, 0, 0); - return adt7316_probe(&spi_dev->dev, &bus, spi_dev->modalias, + return adt7316_probe(&spi_dev->dev, regmap, spi_dev->modalias, spi_dev->irq); } diff --git a/drivers/staging/iio/addac/adt7316.c b/drivers/staging/iio/addac/adt7316.c index 7c4f84822c18..922f827da8c4 100644 --- a/drivers/staging/iio/addac/adt7316.c +++ b/drivers/staging/iio/addac/adt7316.c @@ -17,6 +17,7 @@ #include #include #include +#include #include #include @@ -179,7 +180,7 @@ */ struct adt7316_chip_info { - struct adt7316_bus bus; + struct regmap *regmap; struct gpio_desc *ldac_pin; u16 int_mask; /* 0x2f */ u8 config1; @@ -240,7 +241,7 @@ static ssize_t _adt7316_store_enabled(struct adt7316_chip_info *chip, else config1 = chip->config1 & ~ADT7316_EN; - ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG1, config1); + ret = regmap_write(chip->regmap, ADT7316_CONFIG1, config1); if (ret) return -EIO; @@ -304,7 +305,7 @@ static ssize_t adt7316_store_select_ex_temp(struct device *dev, if (buf[0] == '1') config1 |= ADT7516_SEL_EX_TEMP; - ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG1, config1); + ret = regmap_write(chip->regmap, ADT7316_CONFIG1, config1); if (ret) return -EIO; @@ -345,7 +346,7 @@ static ssize_t adt7316_store_mode(struct device *dev, if (!memcmp(buf, "single_channel", 14)) config2 |= ADT7316_AD_SINGLE_CH_MODE; - ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG2, config2); + ret = regmap_write(chip->regmap, ADT7316_CONFIG2, config2); if (ret) return -EIO; @@ -438,7 +439,7 @@ static ssize_t adt7316_store_ad_channel(struct device *dev, config2 |= data; - ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG2, config2); + ret = regmap_write(chip->regmap, ADT7316_CONFIG2, config2); if (ret) return -EIO; @@ -498,7 +499,7 @@ static ssize_t adt7316_store_disable_averaging(struct device *dev, if (buf[0] == '1') config2 |= ADT7316_DISABLE_AVERAGING; - ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG2, config2); + ret = regmap_write(chip->regmap, ADT7316_CONFIG2, config2); if (ret) return -EIO; @@ -537,7 +538,7 @@ static ssize_t adt7316_store_enable_smbus_timeout(struct device *dev, if (buf[0] == '1') config2 |= ADT7316_EN_SMBUS_TIMEOUT; - ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG2, config2); + ret = regmap_write(chip->regmap, ADT7316_CONFIG2, config2); if (ret) return -EIO; @@ -575,7 +576,7 @@ static ssize_t adt7316_store_powerdown(struct device *dev, if (buf[0] == '1') config1 |= ADT7316_PD; - ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG1, config1); + ret = regmap_write(chip->regmap, ADT7316_CONFIG1, config1); if (ret) return -EIO; @@ -613,7 +614,7 @@ static ssize_t adt7316_store_fast_ad_clock(struct device *dev, if (buf[0] == '1') config3 |= ADT7316_ADCLK_22_5; - ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG3, config3); + ret = regmap_write(chip->regmap, ADT7316_CONFIG3, config3); if (ret) return -EIO; @@ -659,7 +660,7 @@ static ssize_t adt7316_store_da_high_resolution(struct device *dev, if (buf[0] == '1') config3 |= ADT7316_DA_HIGH_RESOLUTION; - ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG3, config3); + ret = regmap_write(chip->regmap, ADT7316_CONFIG3, config3); if (ret) return -EIO; @@ -705,7 +706,7 @@ static ssize_t adt7316_store_AIN_internal_Vref(struct device *dev, else config3 = chip->config3 | ADT7516_AIN_IN_VREF; - ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG3, config3); + ret = regmap_write(chip->regmap, ADT7316_CONFIG3, config3); if (ret) return -EIO; @@ -744,7 +745,7 @@ static ssize_t adt7316_store_enable_prop_DACA(struct device *dev, if (buf[0] == '1') config3 |= ADT7316_EN_IN_TEMP_PROP_DACA; - ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG3, config3); + ret = regmap_write(chip->regmap, ADT7316_CONFIG3, config3); if (ret) return -EIO; @@ -783,7 +784,7 @@ static ssize_t adt7316_store_enable_prop_DACB(struct device *dev, if (buf[0] == '1') config3 |= ADT7316_EN_EX_TEMP_PROP_DACB; - ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG3, config3); + ret = regmap_write(chip->regmap, ADT7316_CONFIG3, config3); if (ret) return -EIO; @@ -826,7 +827,7 @@ static ssize_t adt7316_store_DAC_2Vref_ch_mask(struct device *dev, dac_config = chip->dac_config & (~ADT7316_DA_2VREF_CH_MASK); dac_config |= data; - ret = chip->bus.write(chip->bus.client, ADT7316_DAC_CONFIG, dac_config); + ret = regmap_write(chip->regmap, ADT7316_DAC_CONFIG, dac_config); if (ret) return -EIO; @@ -886,7 +887,7 @@ static ssize_t adt7316_store_DAC_update_mode(struct device *dev, dac_config = chip->dac_config & (~ADT7316_DA_EN_MODE_MASK); dac_config |= data << ADT7316_DA_EN_MODE_SHIFT; - ret = chip->bus.write(chip->bus.client, ADT7316_DAC_CONFIG, dac_config); + ret = regmap_write(chip->regmap, ADT7316_DAC_CONFIG, dac_config); if (ret) return -EIO; @@ -941,8 +942,8 @@ static ssize_t adt7316_store_update_DAC(struct device *dev, ldac_config = chip->ldac_config & (~ADT7316_LDAC_EN_DA_MASK); ldac_config |= data; - ret = chip->bus.write(chip->bus.client, ADT7316_LDAC_CONFIG, - ldac_config); + ret = regmap_write(chip->regmap, ADT7316_LDAC_CONFIG, + ldac_config); if (ret) return -EIO; } else { @@ -983,7 +984,7 @@ static ssize_t adt7316_store_DA_AB_Vref_bypass(struct device *dev, if (buf[0] == '1') dac_config |= ADT7316_VREF_BYPASS_DAC_AB; - ret = chip->bus.write(chip->bus.client, ADT7316_DAC_CONFIG, dac_config); + ret = regmap_write(chip->regmap, ADT7316_DAC_CONFIG, dac_config); if (ret) return -EIO; @@ -1022,7 +1023,7 @@ static ssize_t adt7316_store_DA_CD_Vref_bypass(struct device *dev, if (buf[0] == '1') dac_config |= ADT7316_VREF_BYPASS_DAC_CD; - ret = chip->bus.write(chip->bus.client, ADT7316_DAC_CONFIG, dac_config); + ret = regmap_write(chip->regmap, ADT7316_DAC_CONFIG, dac_config); if (ret) return -EIO; @@ -1082,8 +1083,7 @@ static ssize_t adt7316_store_DAC_internal_Vref(struct device *dev, ldac_config = chip->ldac_config | ADT7316_DAC_IN_VREF; } - ret = chip->bus.write(chip->bus.client, ADT7316_LDAC_CONFIG, - ldac_config); + ret = regmap_write(chip->regmap, ADT7316_LDAC_CONFIG, ldac_config); if (ret) return -EIO; @@ -1101,7 +1101,7 @@ static ssize_t adt7316_show_ad(struct adt7316_chip_info *chip, int channel, char *buf) { u16 data; - u8 msb, lsb; + unsigned int msb, lsb; char sign = ' '; int ret; @@ -1111,13 +1111,12 @@ static ssize_t adt7316_show_ad(struct adt7316_chip_info *chip, switch (channel) { case ADT7316_AD_SINGLE_CH_IN: - ret = chip->bus.read(chip->bus.client, - ADT7316_LSB_IN_TEMP_VDD, &lsb); + ret = regmap_read(chip->regmap, ADT7316_LSB_IN_TEMP_VDD, &lsb); if (ret) return -EIO; - ret = chip->bus.read(chip->bus.client, - ADT7316_AD_MSB_DATA_BASE + channel, &msb); + ret = regmap_read(chip->regmap, + ADT7316_AD_MSB_DATA_BASE + channel, &msb); if (ret) return -EIO; @@ -1125,14 +1124,12 @@ static ssize_t adt7316_show_ad(struct adt7316_chip_info *chip, data |= lsb & ADT7316_LSB_IN_TEMP_MASK; break; case ADT7316_AD_SINGLE_CH_VDD: - ret = chip->bus.read(chip->bus.client, - ADT7316_LSB_IN_TEMP_VDD, &lsb); + ret = regmap_read(chip->regmap, ADT7316_LSB_IN_TEMP_VDD, &lsb); if (ret) return -EIO; - ret = chip->bus.read(chip->bus.client, - - ADT7316_AD_MSB_DATA_BASE + channel, &msb); + ret = regmap_read(chip->regmap, + ADT7316_AD_MSB_DATA_BASE + channel, &msb); if (ret) return -EIO; @@ -1140,13 +1137,12 @@ static ssize_t adt7316_show_ad(struct adt7316_chip_info *chip, data |= (lsb & ADT7316_LSB_VDD_MASK) >> ADT7316_LSB_VDD_OFFSET; return sprintf(buf, "%d\n", data); default: /* ex_temp and ain */ - ret = chip->bus.read(chip->bus.client, - ADT7316_LSB_EX_TEMP_AIN, &lsb); + ret = regmap_read(chip->regmap, ADT7316_LSB_EX_TEMP_AIN, &lsb); if (ret) return -EIO; - ret = chip->bus.read(chip->bus.client, - ADT7316_AD_MSB_DATA_BASE + channel, &msb); + ret = regmap_read(chip->regmap, + ADT7316_AD_MSB_DATA_BASE + channel, &msb); if (ret) return -EIO; @@ -1246,10 +1242,10 @@ static ssize_t adt7316_show_temp_offset(struct adt7316_chip_info *chip, int offset_addr, char *buf) { int data; - u8 val; + unsigned int val; int ret; - ret = chip->bus.read(chip->bus.client, offset_addr, &val); + ret = regmap_read(chip->regmap, offset_addr, &val); if (ret) return -EIO; @@ -1278,7 +1274,7 @@ static ssize_t adt7316_store_temp_offset(struct adt7316_chip_info *chip, val = (u8)data; - ret = chip->bus.write(chip->bus.client, offset_addr, val); + ret = regmap_write(chip->regmap, offset_addr, val); if (ret) return -EIO; @@ -1395,7 +1391,7 @@ static ssize_t adt7316_show_DAC(struct adt7316_chip_info *chip, int channel, char *buf) { u16 data = 0; - u8 msb, lsb, offset; + unsigned int msb, lsb, offset; int ret; if (channel >= ADT7316_DA_MSB_DATA_REGS || @@ -1408,14 +1404,14 @@ static ssize_t adt7316_show_DAC(struct adt7316_chip_info *chip, offset = chip->dac_bits - 8; if (chip->dac_bits > 8) { - ret = chip->bus.read(chip->bus.client, - ADT7316_DA_DATA_BASE + channel * 2, &lsb); + ret = regmap_read(chip->regmap, + ADT7316_DA_DATA_BASE + channel * 2, &lsb); if (ret) return -EIO; } - ret = chip->bus.read(chip->bus.client, - ADT7316_DA_DATA_BASE + 1 + channel * 2, &msb); + ret = regmap_read(chip->regmap, ADT7316_DA_DATA_BASE + 1 + channel * 2, + &msb); if (ret) return -EIO; @@ -1431,7 +1427,7 @@ static ssize_t adt7316_show_DAC(struct adt7316_chip_info *chip, static ssize_t adt7316_store_DAC(struct adt7316_chip_info *chip, int channel, const char *buf, size_t len) { - u8 msb, lsb, lsb_reg, offset; + unsigned int msb, lsb, lsb_reg, offset; u16 data; int ret; @@ -1454,15 +1450,15 @@ static ssize_t adt7316_store_DAC(struct adt7316_chip_info *chip, lsb_reg = lsb << ADT7316_DA_12_BIT_LSB_SHIFT; else lsb_reg = lsb << ADT7316_DA_10_BIT_LSB_SHIFT; - ret = chip->bus.write(chip->bus.client, - ADT7316_DA_DATA_BASE + channel * 2, lsb_reg); + ret = regmap_write(chip->regmap, + ADT7316_DA_DATA_BASE + channel * 2, lsb_reg); if (ret) return -EIO; } msb = data >> offset; - ret = chip->bus.write(chip->bus.client, - ADT7316_DA_DATA_BASE + 1 + channel * 2, msb); + ret = regmap_write(chip->regmap, ADT7316_DA_DATA_BASE + 1 + channel * 2, + msb); if (ret) return -EIO; @@ -1571,10 +1567,10 @@ static ssize_t adt7316_show_device_id(struct device *dev, { struct iio_dev *dev_info = dev_to_iio_dev(dev); struct adt7316_chip_info *chip = iio_priv(dev_info); - u8 id; + unsigned int id; int ret; - ret = chip->bus.read(chip->bus.client, ADT7316_DEVICE_ID, &id); + ret = regmap_read(chip->regmap, ADT7316_DEVICE_ID, &id); if (ret) return -EIO; @@ -1589,10 +1585,10 @@ static ssize_t adt7316_show_manufactorer_id(struct device *dev, { struct iio_dev *dev_info = dev_to_iio_dev(dev); struct adt7316_chip_info *chip = iio_priv(dev_info); - u8 id; + unsigned int id; int ret; - ret = chip->bus.read(chip->bus.client, ADT7316_MANUFACTURE_ID, &id); + ret = regmap_read(chip->regmap, ADT7316_MANUFACTURE_ID, &id); if (ret) return -EIO; @@ -1608,10 +1604,10 @@ static ssize_t adt7316_show_device_rev(struct device *dev, { struct iio_dev *dev_info = dev_to_iio_dev(dev); struct adt7316_chip_info *chip = iio_priv(dev_info); - u8 rev; + unsigned int rev; int ret; - ret = chip->bus.read(chip->bus.client, ADT7316_DEVICE_REV, &rev); + ret = regmap_read(chip->regmap, ADT7316_DEVICE_REV, &rev); if (ret) return -EIO; @@ -1626,10 +1622,10 @@ static ssize_t adt7316_show_bus_type(struct device *dev, { struct iio_dev *dev_info = dev_to_iio_dev(dev); struct adt7316_chip_info *chip = iio_priv(dev_info); - u8 stat; + unsigned int stat; int ret; - ret = chip->bus.read(chip->bus.client, ADT7316_SPI_LOCK_STAT, &stat); + ret = regmap_read(chip->regmap, ADT7316_SPI_LOCK_STAT, &stat); if (ret) return -EIO; @@ -1732,11 +1728,11 @@ static irqreturn_t adt7316_event_handler(int irq, void *private) { struct iio_dev *indio_dev = private; struct adt7316_chip_info *chip = iio_priv(indio_dev); - u8 stat1, stat2; + unsigned int stat1, stat2; int ret; s64 time; - ret = chip->bus.read(chip->bus.client, ADT7316_INT_STAT1, &stat1); + ret = regmap_read(chip->regmap, ADT7316_INT_STAT1, &stat1); if (!ret) { if ((chip->id & ID_FAMILY_MASK) != ID_ADT75XX) stat1 &= 0x1F; @@ -1785,7 +1781,7 @@ static irqreturn_t adt7316_event_handler(int irq, void *private) IIO_EV_DIR_EITHER), time); } - ret = chip->bus.read(chip->bus.client, ADT7316_INT_STAT2, &stat2); + ret = regmap_read(chip->regmap, ADT7316_INT_STAT2, &stat2); if (!ret) { if (stat2 & ADT7316_INT_MASK2_VDD) iio_push_event(indio_dev, @@ -1871,7 +1867,7 @@ static ssize_t adt7316_set_int_mask(struct device *dev, else mask = ADT7316_INT_MASK2_VDD; /* disable vdd int */ - ret = chip->bus.write(chip->bus.client, ADT7316_INT_MASK2, mask); + ret = regmap_write(chip->regmap, ADT7316_INT_MASK2, mask); if (!ret) { chip->int_mask &= ~ADT7316_VDD_INT_MASK; chip->int_mask |= data & ADT7316_VDD_INT_MASK; @@ -1885,7 +1881,7 @@ static ssize_t adt7316_set_int_mask(struct device *dev, /* mask in reg is opposite, set 1 to disable */ mask = (~data) & ADT7316_TEMP_AIN_INT_MASK; } - ret = chip->bus.write(chip->bus.client, ADT7316_INT_MASK1, mask); + ret = regmap_write(chip->regmap, ADT7316_INT_MASK1, mask); chip->int_mask = mask; @@ -1899,7 +1895,7 @@ static inline ssize_t adt7316_show_ad_bound(struct device *dev, struct iio_dev_attr *this_attr = to_iio_dev_attr(attr); struct iio_dev *dev_info = dev_to_iio_dev(dev); struct adt7316_chip_info *chip = iio_priv(dev_info); - u8 val; + unsigned int val; int data; int ret; @@ -1907,7 +1903,7 @@ static inline ssize_t adt7316_show_ad_bound(struct device *dev, this_attr->address > ADT7316_EX_TEMP_LOW) return -EPERM; - ret = chip->bus.read(chip->bus.client, this_attr->address, &val); + ret = regmap_read(chip->regmap, this_attr->address, &val); if (ret) return -EIO; @@ -1956,7 +1952,7 @@ static inline ssize_t adt7316_set_ad_bound(struct device *dev, val = (u8)data; - ret = chip->bus.write(chip->bus.client, this_attr->address, val); + ret = regmap_write(chip->regmap, this_attr->address, val); if (ret) return -EIO; @@ -1987,7 +1983,7 @@ static ssize_t adt7316_set_int_enabled(struct device *dev, if (buf[0] == '1') config1 |= ADT7316_INT_EN; - ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG1, config1); + ret = regmap_write(chip->regmap, ADT7316_CONFIG1, config1); if (ret) return -EIO; @@ -2124,7 +2120,7 @@ static const struct iio_info adt7516_info = { /* * device probe and remove */ -int adt7316_probe(struct device *dev, struct adt7316_bus *bus, +int adt7316_probe(struct device *dev, struct regmap *regmap, const char *name, int irq) { struct adt7316_chip_info *chip; @@ -2138,7 +2134,7 @@ int adt7316_probe(struct device *dev, struct adt7316_bus *bus, /* this is only used for device removal purposes */ dev_set_drvdata(dev, indio_dev); - chip->bus = *bus; + chip->regmap = regmap; if (name[4] == '3') chip->id = ID_ADT7316 + (name[6] - '6'); @@ -2184,11 +2180,11 @@ int adt7316_probe(struct device *dev, struct adt7316_bus *bus, return ret; } - ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG1, chip->config1); + ret = regmap_write(chip->regmap, ADT7316_CONFIG1, chip->config1); if (ret) return -EIO; - ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG3, chip->config3); + ret = regmap_write(chip->regmap, ADT7316_CONFIG3, chip->config3); if (ret) return -EIO; diff --git a/drivers/staging/iio/addac/adt7316.h b/drivers/staging/iio/addac/adt7316.h index e9f288420234..0162d4026e88 100644 --- a/drivers/staging/iio/addac/adt7316.h +++ b/drivers/staging/iio/addac/adt7316.h @@ -11,13 +11,13 @@ #include #include +#include #define ADT7316_REG_MAX_ADDR 0x3F -struct adt7316_bus { - void *client; - int (*read)(void *client, u8 reg, u8 *data); - int (*write)(void *client, u8 reg, u8 val); +static const struct regmap_config adt7316_regmap_config = { + .reg_bits = 8, + .val_bits = 8, }; #ifdef CONFIG_PM_SLEEP @@ -26,7 +26,7 @@ extern const struct dev_pm_ops adt7316_pm_ops; #else #define ADT7316_PM_OPS NULL #endif -int adt7316_probe(struct device *dev, struct adt7316_bus *bus, +int adt7316_probe(struct device *dev, struct regmap *regmap, const char *name, int irq); #endif