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From: Rodrigo Siqueira <rodrigosiqueiramelo@gmail.com>
To: Jonathan Cameron <jic23@kernel.org>,
	Hartmut Knaack <knaack.h@gmx.de>,
	Lars-Peter Clausen <lars@metafoo.de>,
	Peter Meerwald-Stadler <pmeerw@pmeerw.net>
Cc: daniel.baluta@nxp.com, linux-iio@vger.kernel.org,
	kernel-janitors@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH] iio:magnetometer: Remove duplications in iio_chan_spec
Date: Tue, 6 Mar 2018 09:00:11 -0300	[thread overview]
Message-ID: <20180306120011.pbnymd7izt2yxljl@smtp.gmail.com> (raw)

The magn_3d_channels array has multiple declarations of iio_chan_spec.
Most of the iio_chan_spec are very similar, changing only by the .type
and .channel2 field. This patch reduces the code duplication by adding a
macro that can replace the iio_chan_spec  repetitions in the
magn_3d_channels array.

Signed-off-by: Rodrigo Siqueira <rodrigosiqueiramelo@gmail.com>
---
 drivers/iio/magnetometer/hid-sensor-magn-3d.c | 83 ++++++---------------------
 1 file changed, 19 insertions(+), 64 deletions(-)

diff --git a/drivers/iio/magnetometer/hid-sensor-magn-3d.c b/drivers/iio/magnetometer/hid-sensor-magn-3d.c
index a1fd9d591818..fff64711a6c8 100644
--- a/drivers/iio/magnetometer/hid-sensor-magn-3d.c
+++ b/drivers/iio/magnetometer/hid-sensor-magn-3d.c
@@ -74,72 +74,27 @@ static const u32 magn_3d_addresses[MAGN_3D_CHANNEL_MAX] = {
 	HID_USAGE_SENSOR_ORIENT_TRUE_NORTH,
 };
 
+#define HID_SENSOR_MAGN_3D_AXIS_CHANNEL(channel_type, characteristic)	\
+	{								\
+		.type = channel_type,					\
+		.modified = 1,						\
+		.channel2 = characteristic,				\
+		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),		\
+		.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_OFFSET) | \
+					BIT(IIO_CHAN_INFO_SCALE) |	\
+					BIT(IIO_CHAN_INFO_SAMP_FREQ) |	\
+					BIT(IIO_CHAN_INFO_HYSTERESIS),	\
+	}								\
+
 /* Channel definitions */
 static const struct iio_chan_spec magn_3d_channels[] = {
-	{
-		.type = IIO_MAGN,
-		.modified = 1,
-		.channel2 = IIO_MOD_X,
-		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
-		.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_OFFSET) |
-		BIT(IIO_CHAN_INFO_SCALE) |
-		BIT(IIO_CHAN_INFO_SAMP_FREQ) |
-		BIT(IIO_CHAN_INFO_HYSTERESIS),
-	}, {
-		.type = IIO_MAGN,
-		.modified = 1,
-		.channel2 = IIO_MOD_Y,
-		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
-		.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_OFFSET) |
-		BIT(IIO_CHAN_INFO_SCALE) |
-		BIT(IIO_CHAN_INFO_SAMP_FREQ) |
-		BIT(IIO_CHAN_INFO_HYSTERESIS),
-	}, {
-		.type = IIO_MAGN,
-		.modified = 1,
-		.channel2 = IIO_MOD_Z,
-		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
-		.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_OFFSET) |
-		BIT(IIO_CHAN_INFO_SCALE) |
-		BIT(IIO_CHAN_INFO_SAMP_FREQ) |
-		BIT(IIO_CHAN_INFO_HYSTERESIS),
-	}, {
-		.type = IIO_ROT,
-		.modified = 1,
-		.channel2 = IIO_MOD_NORTH_MAGN_TILT_COMP,
-		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
-		.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_OFFSET) |
-		BIT(IIO_CHAN_INFO_SCALE) |
-		BIT(IIO_CHAN_INFO_SAMP_FREQ) |
-		BIT(IIO_CHAN_INFO_HYSTERESIS),
-	}, {
-		.type = IIO_ROT,
-		.modified = 1,
-		.channel2 = IIO_MOD_NORTH_TRUE_TILT_COMP,
-		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
-		.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_OFFSET) |
-		BIT(IIO_CHAN_INFO_SCALE) |
-		BIT(IIO_CHAN_INFO_SAMP_FREQ) |
-		BIT(IIO_CHAN_INFO_HYSTERESIS),
-	}, {
-		.type = IIO_ROT,
-		.modified = 1,
-		.channel2 = IIO_MOD_NORTH_MAGN,
-		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
-		.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_OFFSET) |
-		BIT(IIO_CHAN_INFO_SCALE) |
-		BIT(IIO_CHAN_INFO_SAMP_FREQ) |
-		BIT(IIO_CHAN_INFO_HYSTERESIS),
-	}, {
-		.type = IIO_ROT,
-		.modified = 1,
-		.channel2 = IIO_MOD_NORTH_TRUE,
-		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
-		.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_OFFSET) |
-		BIT(IIO_CHAN_INFO_SCALE) |
-		BIT(IIO_CHAN_INFO_SAMP_FREQ) |
-		BIT(IIO_CHAN_INFO_HYSTERESIS),
-	}
+	HID_SENSOR_MAGN_3D_AXIS_CHANNEL(IIO_MAGN, IIO_MOD_X),
+	HID_SENSOR_MAGN_3D_AXIS_CHANNEL(IIO_MAGN, IIO_MOD_Y),
+	HID_SENSOR_MAGN_3D_AXIS_CHANNEL(IIO_MAGN, IIO_MOD_Z),
+	HID_SENSOR_MAGN_3D_AXIS_CHANNEL(IIO_ROT, IIO_MOD_NORTH_MAGN_TILT_COMP),
+	HID_SENSOR_MAGN_3D_AXIS_CHANNEL(IIO_ROT, IIO_MOD_NORTH_TRUE_TILT_COMP),
+	HID_SENSOR_MAGN_3D_AXIS_CHANNEL(IIO_ROT, IIO_MOD_NORTH_MAGN),
+	HID_SENSOR_MAGN_3D_AXIS_CHANNEL(IIO_ROT, IIO_MOD_NORTH_MAGN),
 };
 
 /* Adjust channel real bits based on report descriptor */
-- 
2.16.2

             reply	other threads:[~2018-03-06 12:00 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-03-06 12:00 Rodrigo Siqueira [this message]
2018-03-07 20:20 ` Jonathan Cameron
2018-03-12 16:21   ` Pandruvada, Srinivas
2018-03-12 16:34     ` Rodrigo Siqueira

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