linux-arm-kernel.lists.infradead.org archive mirror
 help / color / mirror / Atom feed
From: lee.jones@linaro.org (Lee Jones)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 06/11] iio: pressure-core: st: Expand and rename LPS331AP's channel descriptor
Date: Wed,  4 Sep 2013 10:31:38 +0100	[thread overview]
Message-ID: <1378287103-21765-7-git-send-email-lee.jones@linaro.org> (raw)
In-Reply-To: <1378287103-21765-1-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 becfb25..7ba9299 100644
--- a/drivers/iio/pressure/st_pressure_core.c
+++ b/drivers/iio/pressure/st_pressure_core.c
@@ -58,16 +58,39 @@
 #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_lsp331ap_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)
 };
 
@@ -77,7 +100,7 @@ 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_lsp331ap_channels,
 		.odr = {
 			.addr = ST_PRESS_LPS331AP_ODR_ADDR,
 			.mask = ST_PRESS_LPS331AP_ODR_MASK,
@@ -214,7 +237,7 @@ 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_lsp331ap_channels);
 
 	pdata->current_fullscale = (struct st_sensor_fullscale_avl *)
 						&pdata->sensor->fs.fs_avl[0];
-- 
1.8.1.2

  parent reply	other threads:[~2013-09-04  9:31 UTC|newest]

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-09-04  9:31 [PATCH 00/11] iio: ST clean-ups and new pressure sensor device Lee Jones
2013-09-04  9:31 ` [PATCH 01/11] ARM: ux500: Remove PrimeCell IDs from Nomadik I2C DT nodes Lee Jones
2013-09-04  9:31 ` [PATCH 02/11] ARM: ux500: Enable the LPS001WP Pressure & Temperature sensor from DT Lee Jones
2013-09-04 12:38   ` Mark Rutland
2013-09-04 13:36     ` Lee Jones
2013-09-04 14:08       ` Mark Rutland
2013-09-04 13:51     ` Lee Jones
2013-09-04 13:55   ` [PATCH v2 " Lee Jones
2013-09-04  9:31 ` [PATCH 03/11] ARM: ux500: CONFIG: Enable ST's IIO Pressure Sensors by default Lee Jones
2013-09-04  9:31 ` [PATCH 04/11] iio: pressure-i2c: st: Simplify error checking in probe() Lee Jones
2013-09-04 16:21   ` Jonathan Cameron
2013-09-04 16:30     ` Lee Jones
2013-09-04  9:31 ` [PATCH 05/11] iio: pressure-core: st: Describe LPS331AP defines by name Lee Jones
2013-09-04 20:10   ` Denis CIOCCA
2013-09-05  7:38     ` Lee Jones
2013-09-04  9:31 ` Lee Jones [this message]
2013-09-04 20:15   ` [PATCH 06/11] iio: pressure-core: st: Expand and rename LPS331AP's channel descriptor Denis CIOCCA
2013-09-05  7:21     ` Lee Jones
2013-09-05  7:31       ` Denis CIOCCA
2013-09-05  7:59         ` Lee Jones
2013-09-05  8:35           ` Denis CIOCCA
2013-09-04  9:31 ` [PATCH 07/11] iio: sensors-core: st: Allow full-scale to be an optional feature Lee Jones
2013-09-04 20:17   ` Denis CIOCCA
2013-09-04  9:31 ` [PATCH 08/11] iio: pressure-core: st: Allow for number of channels to vary Lee Jones
2013-09-04 20:17   ` Denis CIOCCA
2013-09-04  9:31 ` [PATCH 09/11] iio: pressure-core: st: Clean-up error handling in probe function Lee Jones
2013-09-04 16:32   ` Jonathan Cameron
2013-09-04  9:31 ` [PATCH 10/11] iio: pressure: st: Add support for new LPS001WP pressure sensor Lee Jones
2013-09-04  9:31 ` [PATCH 11/11] iio: pressure-core: st: Provide correct regulator support Lee Jones
2013-09-04 13:11   ` Mark Rutland
2013-09-04 13:18     ` Lars-Peter Clausen
2013-09-04 13:26       ` Lee Jones
2013-09-04 15:05         ` Mark Brown
2013-09-04 13:24     ` Mark Brown

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=1378287103-21765-7-git-send-email-lee.jones@linaro.org \
    --to=lee.jones@linaro.org \
    --cc=linux-arm-kernel@lists.infradead.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).