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From: lee.jones@linaro.org (Lee Jones)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 05/14] iio: pressure-core: st: Expand and rename LPS331AP's channel descriptor
Date: Mon,  9 Sep 2013 11:10:01 +0100	[thread overview]
Message-ID: <1378721410-30937-6-git-send-email-lee.jones@linaro.org> (raw)
In-Reply-To: <1378721410-30937-1-git-send-email-lee.jones@linaro.org>

Due to the MACRO used, the task of reading, understanding and maintaining
the LPS331AP's channel descriptor is substantially difficult. This patch
is based on the view that it's better to have easy to read, maintainable
code than to save a few lines here and there. For that reason we're
expanding the array so initialisation is completed in full.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
 drivers/iio/pressure/st_pressure_core.c | 45 +++++++++++++++++++++++++--------
 1 file changed, 34 insertions(+), 11 deletions(-)

diff --git a/drivers/iio/pressure/st_pressure_core.c b/drivers/iio/pressure/st_pressure_core.c
index b9cf810..fd7e4d1 100644
--- a/drivers/iio/pressure/st_pressure_core.c
+++ b/drivers/iio/pressure/st_pressure_core.c
@@ -64,16 +64,39 @@
 #define ST_PRESS_LPS331AP_OUT_XL_ADDR		0x28
 #define ST_TEMP_LPS331AP_OUT_L_ADDR		0x2b
 
-static const struct iio_chan_spec st_press_channels[] = {
-	ST_SENSORS_LSM_CHANNELS(IIO_PRESSURE,
+static const struct iio_chan_spec st_press_lps331ap_channels[] = {
+	{
+		.type = IIO_PRESSURE,
+		.channel2 = IIO_NO_MOD,
+		.address = ST_PRESS_LPS331AP_OUT_XL_ADDR,
+		.scan_index = ST_SENSORS_SCAN_X,
+		.scan_type = {
+			.sign = 'u',
+			.realbits = 24,
+			.storagebits = 24,
+			.endianness = IIO_LE,
+		},
+		.info_mask_separate =
 			BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE),
-			ST_SENSORS_SCAN_X, 0, IIO_NO_MOD, 'u', IIO_LE, 24, 24,
-			ST_PRESS_LPS331AP_OUT_XL_ADDR),
-	ST_SENSORS_LSM_CHANNELS(IIO_TEMP,
-			BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE) |
-						BIT(IIO_CHAN_INFO_OFFSET),
-			-1, 0, IIO_NO_MOD, 's', IIO_LE, 16, 16,
-			ST_TEMP_LPS331AP_OUT_L_ADDR),
+		.modified = 0,
+	},
+	{
+		.type = IIO_TEMP,
+		.channel2 = IIO_NO_MOD,
+		.address = ST_TEMP_LPS331AP_OUT_L_ADDR,
+		.scan_index = -1,
+		.scan_type = {
+			.sign = 'u',
+			.realbits = 16,
+			.storagebits = 16,
+			.endianness = IIO_LE,
+		},
+		.info_mask_separate =
+			BIT(IIO_CHAN_INFO_RAW) |
+			BIT(IIO_CHAN_INFO_SCALE) |
+			BIT(IIO_CHAN_INFO_OFFSET),
+		.modified = 0,
+	},
 	IIO_CHAN_SOFT_TIMESTAMP(1)
 };
 
@@ -83,7 +106,7 @@ static const struct st_sensors st_press_sensors[] = {
 		.sensors_supported = {
 			[0] = LPS331AP_PRESS_DEV_NAME,
 		},
-		.ch = (struct iio_chan_spec *)st_press_channels,
+		.ch = (struct iio_chan_spec *)st_press_lps331ap_channels,
 		.odr = {
 			.addr = ST_PRESS_LPS331AP_ODR_ADDR,
 			.mask = ST_PRESS_LPS331AP_ODR_MASK,
@@ -222,7 +245,7 @@ int st_press_common_probe(struct iio_dev *indio_dev,
 	pdata->num_data_channels = ST_PRESS_NUMBER_DATA_CHANNELS;
 	pdata->multiread_bit = pdata->sensor->multi_read_bit;
 	indio_dev->channels = pdata->sensor->ch;
-	indio_dev->num_channels = ARRAY_SIZE(st_press_channels);
+	indio_dev->num_channels = ARRAY_SIZE(st_press_lps331ap_channels);
 
 	pdata->current_fullscale = (struct st_sensor_fullscale_avl *)
 						&pdata->sensor->fs.fs_avl[0];
-- 
1.8.1.2

  parent reply	other threads:[~2013-09-09 10:10 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-09-09 10:09 [PATCH v2 00/14] iio: ST clean-ups and new pressure sensor device Lee Jones
2013-09-09 10:09 ` [PATCH 01/14] ARM: ux500: Remove PrimeCell IDs from Nomadik I2C DT nodes Lee Jones
2013-09-09 10:09 ` [PATCH 02/14] ARM: ux500: Enable the LPS001WP Pressure & Temperature sensor from DT Lee Jones
2013-09-09 10:09 ` [PATCH 03/14] ARM: ux500: CONFIG: Enable ST's IIO Pressure Sensors by default Lee Jones
2013-09-09 10:10 ` [PATCH 04/14] iio: pressure-core: st: Describe LPS331AP defines by name Lee Jones
2013-09-09 10:10 ` Lee Jones [this message]
2013-09-09 10:10 ` [PATCH 06/14] iio: sensors-core: st: Allow full-scale to be an optional feature Lee Jones
2013-09-09 10:10 ` [PATCH 07/14] iio: pressure-core: st: Allow for number of channels to vary Lee Jones
2013-09-09 10:10 ` [PATCH 08/14] iio: pressure-core: st: Clean-up probe() function Lee Jones
2013-09-09 10:10 ` [PATCH 09/14] iio: pressure: st: Add support for new LPS001WP pressure sensor Lee Jones
2013-09-09 10:10 ` [PATCH 10/14] iio: pressure-core: st: Provide support for the Vdd power supply Lee Jones
2013-09-09 10:10 ` [PATCH 11/14] iio: pressure-core: st: Provide support for the Vdd_IO " Lee Jones
2013-09-09 10:10 ` [PATCH 12/14] Documentation: dt: i2c: Add LPS001WP to the Trivial Devices list Lee Jones
2013-09-09 11:42   ` [PATCH v2 12/14] Documentation: dt: iio: Add binding for LPS001WP Lee Jones
2013-09-09 10:10 ` [PATCH 13/14] iio: sensors-core: st: Clean-up error handling in st_sensors_init_sensor() Lee Jones
2013-09-09 10:10 ` [PATCH 14/14] iio: sensors-core: st: Support sensors which don't have a Data Ready pin Lee Jones

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