From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from onstation.org ([52.200.56.107]:49882 "EHLO onstation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752887AbeDUAmM (ORCPT ); Fri, 20 Apr 2018 20:42:12 -0400 From: Brian Masney To: jic23@kernel.org, linux-iio@vger.kernel.org Cc: gregkh@linuxfoundation.org, devel@driverdev.osuosl.org, knaack.h@gmx.de, lars@metafoo.de, pmeerw@pmeerw.net, linux-kernel@vger.kernel.org, Jon.Brenner@ams.com Subject: [PATCH 04/13] staging: iio: tsl2x7x: simplify tsl2x7x_clear_interrupts function Date: Fri, 20 Apr 2018 20:41:44 -0400 Message-Id: <20180421004153.19073-5-masneyb@onstation.org> In-Reply-To: <20180421004153.19073-1-masneyb@onstation.org> References: <20180421004153.19073-1-masneyb@onstation.org> Sender: linux-iio-owner@vger.kernel.org List-Id: linux-iio@vger.kernel.org tsl2x7x_clear_interrupts() takes a reg argument but there are only two callers to this function and both callers pass the same value. Since this function was introduced, interrupts are now working properly for this driver, and several unnecessary calls to tsl2x7x_clear_interrupts() were removed. This patch removes the tsl2x7x_clear_interrupts() function and replaces the two callers with the i2c_smbus_write_byte() call instead. Signed-off-by: Brian Masney --- drivers/staging/iio/light/tsl2x7x.c | 32 +++++++++++++++----------------- 1 file changed, 15 insertions(+), 17 deletions(-) diff --git a/drivers/staging/iio/light/tsl2x7x.c b/drivers/staging/iio/light/tsl2x7x.c index 95a00b965c5e..f37fc74b8fbc 100644 --- a/drivers/staging/iio/light/tsl2x7x.c +++ b/drivers/staging/iio/light/tsl2x7x.c @@ -271,20 +271,6 @@ static const u8 device_channel_config[] = { ALSPRX2 }; -static int tsl2x7x_clear_interrupts(struct tsl2X7X_chip *chip, int reg) -{ - int ret; - - ret = i2c_smbus_write_byte(chip->client, - TSL2X7X_CMD_REG | TSL2X7X_CMD_SPL_FN | reg); - if (ret < 0) - dev_err(&chip->client->dev, - "%s: failed to clear interrupt status %x: %d\n", - __func__, reg, ret); - - return ret; -} - static int tsl2x7x_read_status(struct tsl2X7X_chip *chip) { int ret; @@ -714,9 +700,15 @@ static int tsl2x7x_chip_on(struct iio_dev *indio_dev) if (ret < 0) return ret; - ret = tsl2x7x_clear_interrupts(chip, TSL2X7X_CMD_PROXALS_INT_CLR); - if (ret < 0) + ret = i2c_smbus_write_byte(chip->client, + TSL2X7X_CMD_REG | TSL2X7X_CMD_SPL_FN | + TSL2X7X_CMD_PROXALS_INT_CLR); + if (ret < 0) { + dev_err(&chip->client->dev, + "%s: failed to clear interrupt status: %d\n", + __func__, ret); return ret; + } chip->tsl2x7x_chip_status = TSL2X7X_CHIP_WORKING; @@ -1341,7 +1333,13 @@ static irqreturn_t tsl2x7x_event_handler(int irq, void *private) timestamp); } - tsl2x7x_clear_interrupts(chip, TSL2X7X_CMD_PROXALS_INT_CLR); + ret = i2c_smbus_write_byte(chip->client, + TSL2X7X_CMD_REG | TSL2X7X_CMD_SPL_FN | + TSL2X7X_CMD_PROXALS_INT_CLR); + if (ret < 0) + dev_err(&chip->client->dev, + "%s: failed to clear interrupt status: %d\n", + __func__, ret); return IRQ_HANDLED; } -- 2.14.3