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From: Crt Mori <cmo@melexis.com>
To: Jonathan Cameron <jic23@kernel.org>
Cc: linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org,
	Crt Mori <cmo@melexis.com>,
	Andy Shevchenko <andy.shevchenko@gmail.com>
Subject: [PATCH v6 3/5] iio:temperature:mlx90632: Convert polling while loop to regmap
Date: Tue, 18 Aug 2020 23:37:35 +0200	[thread overview]
Message-ID: <20200818213737.140613-4-cmo@melexis.com> (raw)
In-Reply-To: <20200818213737.140613-1-cmo@melexis.com>

Reduce number of lines and improve readability to convert polling while
loops to regmap_read_poll_timeout.

Signed-off-by: Crt Mori <cmo@melexis.com>
---
 drivers/iio/temperature/mlx90632.c | 16 +++++-----------
 1 file changed, 5 insertions(+), 11 deletions(-)

diff --git a/drivers/iio/temperature/mlx90632.c b/drivers/iio/temperature/mlx90632.c
index ce75f5a3486b..d782634c107f 100644
--- a/drivers/iio/temperature/mlx90632.c
+++ b/drivers/iio/temperature/mlx90632.c
@@ -180,25 +180,19 @@ static s32 mlx90632_pwr_continuous(struct regmap *regmap)
  */
 static int mlx90632_perform_measurement(struct mlx90632_data *data)
 {
-	int ret, tries = 100;
 	unsigned int reg_status;
+	int ret;
 
 	ret = regmap_update_bits(data->regmap, MLX90632_REG_STATUS,
 				 MLX90632_STAT_DATA_RDY, 0);
 	if (ret < 0)
 		return ret;
 
-	while (tries-- > 0) {
-		ret = regmap_read(data->regmap, MLX90632_REG_STATUS,
-				  &reg_status);
-		if (ret < 0)
-			return ret;
-		if (reg_status & MLX90632_STAT_DATA_RDY)
-			break;
-		usleep_range(10000, 11000);
-	}
+	ret = regmap_read_poll_timeout(data->regmap, MLX90632_REG_STATUS, reg_status,
+				       !(reg_status & MLX90632_STAT_DATA_RDY), 10000,
+				       100 * 10000);
 
-	if (tries < 0) {
+	if (ret < 0) {
 		dev_err(&data->client->dev, "data not ready");
 		return -ETIMEDOUT;
 	}
-- 
2.25.1


  parent reply	other threads:[~2020-08-18 21:38 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-08-18 21:37 [PATCH v6 0/5] iio: temperature: mlx90632: Add extended calibration calculations Crt Mori
2020-08-18 21:37 ` [PATCH v6 1/5] iio:temperature:mlx90632: Reduce number of equal calulcations Crt Mori
2020-08-18 21:37 ` [PATCH v6 2/5] iio:temperature:mlx90632: Add kerneldoc to the internal struct Crt Mori
2020-08-18 21:37 ` Crt Mori [this message]
2020-08-19  8:08   ` [PATCH v6 3/5] iio:temperature:mlx90632: Convert polling while loop to regmap Andy Shevchenko
2020-08-18 21:37 ` [PATCH v6 4/5] iio:temperature:mlx90632: Adding extended calibration option Crt Mori
2020-08-18 21:37 ` [PATCH v6 5/5] iio:temperature:mlx90632: Some stylefixing leftovers Crt Mori
2020-08-19  8:10   ` Andy Shevchenko
2020-08-29 17:28 ` [PATCH v6 0/5] iio: temperature: mlx90632: Add extended calibration calculations Jonathan Cameron

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