From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-19.6 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 48A25C4332B for ; Sun, 7 Feb 2021 15:50:16 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 2438364E3E for ; Sun, 7 Feb 2021 15:50:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229646AbhBGPuP (ORCPT ); Sun, 7 Feb 2021 10:50:15 -0500 Received: from mail.kernel.org ([198.145.29.99]:34038 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229650AbhBGPuL (ORCPT ); Sun, 7 Feb 2021 10:50:11 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id 75BC764E58; Sun, 7 Feb 2021 15:49:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1612712942; bh=DHK8ByBIHFZROiTcgedDfpuTsPseAwJQQ5RnqEQR3mQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=t/chv+s48Xh5sQn88BgZto/3y1Tw+pxq7GkjTH2GtzyhkjqPH5rynbtvEGnXtD0lJ 2q3QlYrBYJlLGpIlaCdPA2bBZuBk5IdFsbsQ9hj/wbdzLGcntz1oGl4bGWcqdiY4tA QsXpcDIROKXNwC9ULM7/htlSVqYjHm3GX0QY1KTluj7WPMHCH7cnINFeOJZas0lv5Q mmnwEHIJ/mrDQDja/OOuMRIhHBFO8uwOVFI4sItVrj44pvtvmWOjP1y38Y3AIE4cJK 6Y5dUSzrR2s0x1MN1yMbioD5ct/ekWcQXqL4y1s0Gzl+CCPwa77M8P3vNuH8VflEID ncaLQq8KyUdxw== From: Jonathan Cameron To: linux-iio@vger.kernel.org Cc: Lars-Peter Clausen , Michael Hennerich , song.bao.hua@hisilicon.com, robh+dt@kernel.org, Jonathan Cameron Subject: [PATCH 13/24] staging:iio:cdc:ad7150: More consistent register and field naming Date: Sun, 7 Feb 2021 15:46:12 +0000 Message-Id: <20210207154623.433442-14-jic23@kernel.org> X-Mailer: git-send-email 2.30.0 In-Reply-To: <20210207154623.433442-1-jic23@kernel.org> References: <20210207154623.433442-1-jic23@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-iio@vger.kernel.org From: Jonathan Cameron Add _REG postfix to register addresses to avoid confusion with fields. Also add additional field defines and use throughout the driver in place of magic numbers. Signed-off-by: Jonathan Cameron --- drivers/staging/iio/cdc/ad7150.c | 123 +++++++++++++++---------------- 1 file changed, 58 insertions(+), 65 deletions(-) diff --git a/drivers/staging/iio/cdc/ad7150.c b/drivers/staging/iio/cdc/ad7150.c index 24be97456c03..5d4783da7f98 100644 --- a/drivers/staging/iio/cdc/ad7150.c +++ b/drivers/staging/iio/cdc/ad7150.c @@ -21,37 +21,38 @@ * AD7150 registers definition */ -#define AD7150_STATUS 0 -#define AD7150_STATUS_OUT1 BIT(3) -#define AD7150_STATUS_OUT2 BIT(5) -#define AD7150_CH1_DATA_HIGH 1 -#define AD7150_CH2_DATA_HIGH 3 -#define AD7150_CH1_AVG_HIGH 5 -#define AD7150_CH2_AVG_HIGH 7 -#define AD7150_CH1_SENSITIVITY 9 -#define AD7150_CH1_THR_HOLD_H 9 -#define AD7150_CH1_TIMEOUT 10 -#define AD7150_CH1_SETUP 11 -#define AD7150_CH2_SENSITIVITY 12 -#define AD7150_CH2_THR_HOLD_H 12 -#define AD7150_CH2_TIMEOUT 13 -#define AD7150_CH2_SETUP 14 -#define AD7150_CFG 15 -#define AD7150_CFG_FIX BIT(7) -#define AD7150_PD_TIMER 16 -#define AD7150_CH1_CAPDAC 17 -#define AD7150_CH2_CAPDAC 18 -#define AD7150_SN3 19 -#define AD7150_SN2 20 -#define AD7150_SN1 21 -#define AD7150_SN0 22 -#define AD7150_ID 23 - -/* AD7150 masks */ -#define AD7150_THRESHTYPE_MSK GENMASK(6, 5) - -#define AD7150_CH_TIMEOUT_RECEDING GENMASK(3, 0) -#define AD7150_CH_TIMEOUT_APPROACHING GENMASK(7, 4) +#define AD7150_STATUS_REG 0 +#define AD7150_STATUS_OUT1 BIT(3) +#define AD7150_STATUS_OUT2 BIT(5) +#define AD7150_CH1_DATA_HIGH_REG 1 +#define AD7150_CH2_DATA_HIGH_REG 3 +#define AD7150_CH1_AVG_HIGH_REG 5 +#define AD7150_CH2_AVG_HIGH_REG 7 +#define AD7150_CH1_SENSITIVITY_REG 9 +#define AD7150_CH1_THR_HOLD_H_REG 9 +#define AD7150_CH1_TIMEOUT_REG 10 +#define AD7150_CH_TIMEOUT_RECEDING GENMASK(3, 0) +#define AD7150_CH_TIMEOUT_APPROACHING GENMASK(7, 4) +#define AD7150_CH1_SETUP_REG 11 +#define AD7150_CH2_SENSITIVITY_REG 12 +#define AD7150_CH2_THR_HOLD_H_REG 12 +#define AD7150_CH2_TIMEOUT_REG 13 +#define AD7150_CH2_SETUP_REG 14 +#define AD7150_CFG_REG 15 +#define AD7150_CFG_FIX BIT(7) +#define AD7150_CFG_THRESHTYPE_MSK GENMASK(6, 5) +#define AD7150_CFG_TT_NEG 0x0 +#define AD7150_CFG_TT_POS 0x1 +#define AD7150_CFG_TT_IN_WINDOW 0x2 +#define AD7150_CFG_TT_OUT_WINDOW 0x3 +#define AD7150_PD_TIMER_REG 16 +#define AD7150_CH1_CAPDAC_REG 17 +#define AD7150_CH2_CAPDAC_REG 18 +#define AD7150_SN3_REG 19 +#define AD7150_SN2_REG 20 +#define AD7150_SN1_REG 21 +#define AD7150_SN0_REG 22 +#define AD7150_ID_REG 23 enum { AD7150, @@ -93,12 +94,12 @@ struct ad7150_chip_info { */ static const u8 ad7150_addresses[][6] = { - { AD7150_CH1_DATA_HIGH, AD7150_CH1_AVG_HIGH, - AD7150_CH1_SETUP, AD7150_CH1_THR_HOLD_H, - AD7150_CH1_SENSITIVITY, AD7150_CH1_TIMEOUT }, - { AD7150_CH2_DATA_HIGH, AD7150_CH2_AVG_HIGH, - AD7150_CH2_SETUP, AD7150_CH2_THR_HOLD_H, - AD7150_CH2_SENSITIVITY, AD7150_CH2_TIMEOUT }, + { AD7150_CH1_DATA_HIGH_REG, AD7150_CH1_AVG_HIGH_REG, + AD7150_CH1_SETUP_REG, AD7150_CH1_THR_HOLD_H_REG, + AD7150_CH1_SENSITIVITY_REG, AD7150_CH1_TIMEOUT_REG }, + { AD7150_CH2_DATA_HIGH_REG, AD7150_CH2_AVG_HIGH_REG, + AD7150_CH2_SETUP_REG, AD7150_CH2_THR_HOLD_H_REG, + AD7150_CH2_SENSITIVITY_REG, AD7150_CH2_TIMEOUT_REG }, }; static int ad7150_read_raw(struct iio_dev *indio_dev, @@ -147,11 +148,11 @@ static int ad7150_read_event_config(struct iio_dev *indio_dev, bool thrfixed; struct ad7150_chip_info *chip = iio_priv(indio_dev); - ret = i2c_smbus_read_byte_data(chip->client, AD7150_CFG); + ret = i2c_smbus_read_byte_data(chip->client, AD7150_CFG_REG); if (ret < 0) return ret; - threshtype = FIELD_GET(AD7150_THRESHTYPE_MSK, ret); + threshtype = FIELD_GET(AD7150_CFG_THRESHTYPE_MSK, ret); /*check if threshold mode is fixed or adaptive*/ thrfixed = FIELD_GET(AD7150_CFG_FIX, ret); @@ -159,12 +160,12 @@ static int ad7150_read_event_config(struct iio_dev *indio_dev, switch (type) { case IIO_EV_TYPE_THRESH_ADAPTIVE: if (dir == IIO_EV_DIR_RISING) - return !thrfixed && (threshtype == 0x1); - return !thrfixed && (threshtype == 0x0); + return !thrfixed && (threshtype == AD7150_CFG_TT_POS); + return !thrfixed && (threshtype == AD7150_CFG_TT_NEG); case IIO_EV_TYPE_THRESH: if (dir == IIO_EV_DIR_RISING) - return thrfixed && (threshtype == 0x1); - return thrfixed && (threshtype == 0x0); + return thrfixed && (threshtype == AD7150_CFG_TT_POS); + return thrfixed && (threshtype == AD7150_CFG_TT_NEG); default: break; } @@ -261,35 +262,27 @@ static int ad7150_write_event_config(struct iio_dev *indio_dev, disable_irq(chip->interrupts[0]); disable_irq(chip->interrupts[1]); - ret = i2c_smbus_read_byte_data(chip->client, AD7150_CFG); + ret = i2c_smbus_read_byte_data(chip->client, AD7150_CFG_REG); if (ret < 0) goto error_ret; - cfg = ret & ~((0x03 << 5) | BIT(7)); + cfg = ret & ~(AD7150_CFG_THRESHTYPE_MSK | AD7150_CFG_FIX); - switch (type) { - case IIO_EV_TYPE_THRESH_ADAPTIVE: + if (type == IIO_EV_TYPE_THRESH_ADAPTIVE) adaptive = 1; - if (rising) - thresh_type = 0x1; - else - thresh_type = 0x0; - break; - case IIO_EV_TYPE_THRESH: + else adaptive = 0; - if (rising) - thresh_type = 0x1; - else - thresh_type = 0x0; - break; - default: - ret = -EINVAL; - goto error_ret; - } - cfg |= (!adaptive << 7) | (thresh_type << 5); + if (rising) + thresh_type = AD7150_CFG_TT_POS; + else + thresh_type = AD7150_CFG_TT_NEG; + + cfg |= FIELD_PREP(AD7150_CFG_FIX, !adaptive) | + FIELD_PREP(AD7150_CFG_THRESHTYPE_MSK, thresh_type); - ret = i2c_smbus_write_byte_data(chip->client, AD7150_CFG, cfg); + ret = i2c_smbus_write_byte_data(chip->client, AD7150_CFG_REG, + cfg); if (ret < 0) goto error_ret; @@ -480,7 +473,7 @@ static irqreturn_t __ad7150_event_handler(void *private, u8 status_mask, s64 timestamp = iio_get_time_ns(indio_dev); int int_status; - int_status = i2c_smbus_read_byte_data(chip->client, AD7150_STATUS); + int_status = i2c_smbus_read_byte_data(chip->client, AD7150_STATUS_REG); if (int_status < 0) return IRQ_HANDLED; -- 2.30.0