From patchwork Wed Oct 20 14:21:10 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lars-Peter Clausen X-Patchwork-Id: 12572487 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3C3C5C433EF for ; Wed, 20 Oct 2021 14:21:56 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 26C9C61130 for ; Wed, 20 Oct 2021 14:21:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230174AbhJTOYJ (ORCPT ); Wed, 20 Oct 2021 10:24:09 -0400 Received: from www381.your-server.de ([78.46.137.84]:43426 "EHLO www381.your-server.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230020AbhJTOYJ (ORCPT ); Wed, 20 Oct 2021 10:24:09 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=metafoo.de; s=default2002; h=Content-Transfer-Encoding:MIME-Version:Message-Id:Date: Subject:Cc:To:From:Sender:Reply-To:Content-Type:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:In-Reply-To:References; bh=fjJUwMC1J0bMmk/2H6Lt35lPdT2I5hLzEWf5XF4XWGs=; b=ky8Gr4oXhbpg7j+yYlFlCSnNj8 J4vthwdfnGWRmjWDjaCTlvU0N8F84FgD8OPQKq8lbaMpMEP9LnMVQL6PcCxSzsGy7zC1ZYTXxaifF pvS7MGo7PW7lkFJG59cUu3p7ZfImY83PZdVCjFXW2SQlCgaBtrNXP22z5teEPARnknk0MUx189t2u BT/uwodPpgQX+hVOamT4A4Wvlww2xrJBdScC+PySvowfF3Il8VGAUqhDT2zEIp2Y6tsSLrXL2ZC8m VSSrDeMVm8pzwBCJtXzx4tbR+MSohxcKpoDQq68kROcupOkasmGQZ7PiWvffEsD7VmZtAH/E+z9wZ gYH+t5qA==; Received: from sslproxy01.your-server.de ([78.46.139.224]) by www381.your-server.de with esmtpsa (TLSv1.3:TLS_AES_256_GCM_SHA384:256) (Exim 4.92.3) (envelope-from ) id 1mdCTZ-000AYg-Nc; Wed, 20 Oct 2021 16:21:53 +0200 Received: from [82.135.83.71] (helo=lars-desktop.fritz.box) by sslproxy01.your-server.de with esmtpsa (TLSv1.3:TLS_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1mdCTZ-0004SK-JC; Wed, 20 Oct 2021 16:21:53 +0200 From: Lars-Peter Clausen To: Jonathan Cameron Cc: Tomasz Duszynski , linux-iio@vger.kernel.org, Lars-Peter Clausen Subject: [PATCH] iio: ms5611: Simplify IO callback parameters Date: Wed, 20 Oct 2021 16:21:10 +0200 Message-Id: <20211020142110.7060-1-lars@metafoo.de> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 X-Authenticated-Sender: lars@metafoo.de X-Virus-Scanned: Clear (ClamAV 0.103.3/26327/Tue Oct 19 13:35:20 2021) Precedence: bulk List-ID: X-Mailing-List: linux-iio@vger.kernel.org The ms5611 passes &indio_dev->dev as a parameter to all its IO callbacks only to directly cast the struct device back to struct iio_dev. And the struct iio_dev is then only used to get the drivers state struct. Simplify this a bit by passing the state struct directly. This makes it a bit easier to follow what the code is doing. Signed-off-by: Lars-Peter Clausen --- drivers/iio/pressure/ms5611.h | 6 +++--- drivers/iio/pressure/ms5611_core.c | 7 +++---- drivers/iio/pressure/ms5611_i2c.c | 11 ++++------- drivers/iio/pressure/ms5611_spi.c | 17 +++++++---------- 4 files changed, 17 insertions(+), 24 deletions(-) diff --git a/drivers/iio/pressure/ms5611.h b/drivers/iio/pressure/ms5611.h index 86b1c4b1820d..cbc9349c342a 100644 --- a/drivers/iio/pressure/ms5611.h +++ b/drivers/iio/pressure/ms5611.h @@ -50,9 +50,9 @@ struct ms5611_state { const struct ms5611_osr *pressure_osr; const struct ms5611_osr *temp_osr; - int (*reset)(struct device *dev); - int (*read_prom_word)(struct device *dev, int index, u16 *word); - int (*read_adc_temp_and_pressure)(struct device *dev, + int (*reset)(struct ms5611_state *st); + int (*read_prom_word)(struct ms5611_state *st, int index, u16 *word); + int (*read_adc_temp_and_pressure)(struct ms5611_state *st, s32 *temp, s32 *pressure); struct ms5611_chip_info *chip_info; diff --git a/drivers/iio/pressure/ms5611_core.c b/drivers/iio/pressure/ms5611_core.c index ee75f08655c9..a4d0b54cde9b 100644 --- a/drivers/iio/pressure/ms5611_core.c +++ b/drivers/iio/pressure/ms5611_core.c @@ -85,8 +85,7 @@ static int ms5611_read_prom(struct iio_dev *indio_dev) struct ms5611_state *st = iio_priv(indio_dev); for (i = 0; i < MS5611_PROM_WORDS_NB; i++) { - ret = st->read_prom_word(&indio_dev->dev, - i, &st->chip_info->prom[i]); + ret = st->read_prom_word(st, i, &st->chip_info->prom[i]); if (ret < 0) { dev_err(&indio_dev->dev, "failed to read prom at %d\n", i); @@ -108,7 +107,7 @@ static int ms5611_read_temp_and_pressure(struct iio_dev *indio_dev, int ret; struct ms5611_state *st = iio_priv(indio_dev); - ret = st->read_adc_temp_and_pressure(&indio_dev->dev, temp, pressure); + ret = st->read_adc_temp_and_pressure(st, temp, pressure); if (ret < 0) { dev_err(&indio_dev->dev, "failed to read temperature and pressure\n"); @@ -196,7 +195,7 @@ static int ms5611_reset(struct iio_dev *indio_dev) int ret; struct ms5611_state *st = iio_priv(indio_dev); - ret = st->reset(&indio_dev->dev); + ret = st->reset(st); if (ret < 0) { dev_err(&indio_dev->dev, "failed to reset device\n"); return ret; diff --git a/drivers/iio/pressure/ms5611_i2c.c b/drivers/iio/pressure/ms5611_i2c.c index 5c82d80f85b6..1047a85527a9 100644 --- a/drivers/iio/pressure/ms5611_i2c.c +++ b/drivers/iio/pressure/ms5611_i2c.c @@ -20,17 +20,15 @@ #include "ms5611.h" -static int ms5611_i2c_reset(struct device *dev) +static int ms5611_i2c_reset(struct ms5611_state *st) { - struct ms5611_state *st = iio_priv(dev_to_iio_dev(dev)); - return i2c_smbus_write_byte(st->client, MS5611_RESET); } -static int ms5611_i2c_read_prom_word(struct device *dev, int index, u16 *word) +static int ms5611_i2c_read_prom_word(struct ms5611_state *st, int index, + u16 *word) { int ret; - struct ms5611_state *st = iio_priv(dev_to_iio_dev(dev)); ret = i2c_smbus_read_word_swapped(st->client, MS5611_READ_PROM_WORD + (index << 1)); @@ -57,11 +55,10 @@ static int ms5611_i2c_read_adc(struct ms5611_state *st, s32 *val) return 0; } -static int ms5611_i2c_read_adc_temp_and_pressure(struct device *dev, +static int ms5611_i2c_read_adc_temp_and_pressure(struct ms5611_state *st, s32 *temp, s32 *pressure) { int ret; - struct ms5611_state *st = iio_priv(dev_to_iio_dev(dev)); const struct ms5611_osr *osr = st->temp_osr; ret = i2c_smbus_write_byte(st->client, osr->cmd); diff --git a/drivers/iio/pressure/ms5611_spi.c b/drivers/iio/pressure/ms5611_spi.c index 79bed64c9b68..9fa2dcd71760 100644 --- a/drivers/iio/pressure/ms5611_spi.c +++ b/drivers/iio/pressure/ms5611_spi.c @@ -15,18 +15,17 @@ #include "ms5611.h" -static int ms5611_spi_reset(struct device *dev) +static int ms5611_spi_reset(struct ms5611_state *st) { u8 cmd = MS5611_RESET; - struct ms5611_state *st = iio_priv(dev_to_iio_dev(dev)); return spi_write_then_read(st->client, &cmd, 1, NULL, 0); } -static int ms5611_spi_read_prom_word(struct device *dev, int index, u16 *word) +static int ms5611_spi_read_prom_word(struct ms5611_state *st, int index, + u16 *word) { int ret; - struct ms5611_state *st = iio_priv(dev_to_iio_dev(dev)); ret = spi_w8r16be(st->client, MS5611_READ_PROM_WORD + (index << 1)); if (ret < 0) @@ -37,11 +36,10 @@ static int ms5611_spi_read_prom_word(struct device *dev, int index, u16 *word) return 0; } -static int ms5611_spi_read_adc(struct device *dev, s32 *val) +static int ms5611_spi_read_adc(struct ms5611_state *st, s32 *val) { int ret; u8 buf[3] = { MS5611_READ_ADC }; - struct ms5611_state *st = iio_priv(dev_to_iio_dev(dev)); ret = spi_write_then_read(st->client, buf, 1, buf, 3); if (ret < 0) @@ -52,11 +50,10 @@ static int ms5611_spi_read_adc(struct device *dev, s32 *val) return 0; } -static int ms5611_spi_read_adc_temp_and_pressure(struct device *dev, +static int ms5611_spi_read_adc_temp_and_pressure(struct ms5611_state *st, s32 *temp, s32 *pressure) { int ret; - struct ms5611_state *st = iio_priv(dev_to_iio_dev(dev)); const struct ms5611_osr *osr = st->temp_osr; /* @@ -68,7 +65,7 @@ static int ms5611_spi_read_adc_temp_and_pressure(struct device *dev, return ret; usleep_range(osr->conv_usec, osr->conv_usec + (osr->conv_usec / 10UL)); - ret = ms5611_spi_read_adc(dev, temp); + ret = ms5611_spi_read_adc(st, temp); if (ret < 0) return ret; @@ -78,7 +75,7 @@ static int ms5611_spi_read_adc_temp_and_pressure(struct device *dev, return ret; usleep_range(osr->conv_usec, osr->conv_usec + (osr->conv_usec / 10UL)); - return ms5611_spi_read_adc(dev, pressure); + return ms5611_spi_read_adc(st, pressure); } static int ms5611_spi_probe(struct spi_device *spi)