From: Peter Meerwald <pmeerw@pmeerw.net>
To: linux-iio@vger.kernel.org
Cc: Peter Meerwald <pmeerw@pmeerw.net>
Subject: [PATCH v3 07/10] staging:iio:hmc5843: Rename _set_rate() to _set_samp_freq()
Date: Mon, 14 Oct 2013 23:34:55 +0200 [thread overview]
Message-ID: <1381786498-25954-8-git-send-email-pmeerw@pmeerw.net> (raw)
In-Reply-To: <1381786498-25954-1-git-send-email-pmeerw@pmeerw.net>
move locking inside _set() function
Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
---
drivers/staging/iio/magnetometer/hmc5843.c | 31 +++++++++++++++---------------
1 file changed, 15 insertions(+), 16 deletions(-)
diff --git a/drivers/staging/iio/magnetometer/hmc5843.c b/drivers/staging/iio/magnetometer/hmc5843.c
index fb57386..8729762 100644
--- a/drivers/staging/iio/magnetometer/hmc5843.c
+++ b/drivers/staging/iio/magnetometer/hmc5843.c
@@ -66,8 +66,7 @@ enum hmc5843_ids {
*/
#define HMC5843_RATE_OFFSET 0x02
#define HMC5843_RATE_DEFAULT 0x04
-#define HMC5843_RATE_BITMASK 0x1C
-#define HMC5843_RATE_NOT_USED 0x07
+#define HMC5843_RATES 7
/* Device measurement configuration */
#define HMC5843_MEAS_CONF_NORMAL 0x00
@@ -292,24 +291,30 @@ static ssize_t hmc5843_show_samp_freq_avail(struct device *dev,
struct hmc5843_data *data = iio_priv(dev_to_iio_dev(dev));
return hmc5843_show_int_plus_micros(buf,
- data->variant->regval_to_samp_freq, HMC5843_RATE_NOT_USED);
+ data->variant->regval_to_samp_freq, HMC5843_RATES);
}
static IIO_DEV_ATTR_SAMP_FREQ_AVAIL(hmc5843_show_samp_freq_avail);
-static s32 hmc5843_set_rate(struct hmc5843_data *data, u8 rate)
+static int hmc5843_set_samp_freq(struct hmc5843_data *data, u8 rate)
{
- u8 reg_val = data->meas_conf | (rate << HMC5843_RATE_OFFSET);
+ int ret;
+
+ mutex_lock(&data->lock);
+ ret = i2c_smbus_write_byte_data(data->client, HMC5843_CONFIG_REG_A,
+ data->meas_conf | (rate << HMC5843_RATE_OFFSET));
+ if (ret >= 0)
+ data->rate = rate;
+ mutex_unlock(&data->lock);
- return i2c_smbus_write_byte_data(data->client, HMC5843_CONFIG_REG_A,
- reg_val);
+ return ret;
}
static int hmc5843_check_samp_freq(struct hmc5843_data *data,
int val, int val2)
{
return hmc5843_check_int_plus_micros(
- data->variant->regval_to_samp_freq, HMC5843_RATE_NOT_USED,
+ data->variant->regval_to_samp_freq, HMC5843_RATES,
val, val2);
}
@@ -382,13 +387,7 @@ static int hmc5843_write_raw(struct iio_dev *indio_dev,
if (rate < 0)
return -EINVAL;
- mutex_lock(&data->lock);
- ret = hmc5843_set_rate(data, rate);
- if (ret >= 0)
- data->rate = rate;
- mutex_unlock(&data->lock);
-
- return ret;
+ return hmc5843_set_samp_freq(data, rate);
case IIO_CHAN_INFO_SCALE:
range = hmc5843_check_scale(data, val, val2);
if (range < 0)
@@ -510,7 +509,7 @@ static const struct hmc5843_chip_info hmc5843_chip_info_tbl[] = {
static void hmc5843_init(struct hmc5843_data *data)
{
hmc5843_set_meas_conf(data, HMC5843_MEAS_CONF_NORMAL);
- hmc5843_set_rate(data, HMC5843_RATE_DEFAULT);
+ hmc5843_set_samp_freq(data, HMC5843_RATE_DEFAULT);
hmc5843_set_mode(data, HMC5843_MODE_CONVERSION_CONTINUOUS);
i2c_smbus_write_byte_data(data->client, HMC5843_CONFIG_REG_B,
HMC5843_RANGE_GAIN_DEFAULT);
--
1.8.4
next prev parent reply other threads:[~2013-10-14 21:35 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-10-14 21:34 [PATCH v3 00/10] hmc5843 cleanup Peter Meerwald
2013-10-14 21:34 ` [PATCH v3 01/10] staging:iio:hmc5843: Use SCALE instead of magn_range Peter Meerwald
2013-10-15 22:14 ` Jonathan Cameron
2013-10-14 21:34 ` [PATCH v3 02/10] staging:iio:hmc5843: Always read all channels values otherwise no updates Peter Meerwald
2013-10-15 5:39 ` Lars-Peter Clausen
2013-10-14 21:34 ` [PATCH v3 03/10] staging:iio:hmc5843: Add trigger handling Peter Meerwald
2013-10-14 21:34 ` [PATCH v3 04/10] staging:iio:hmc5843: Remove ability to change operating mode Peter Meerwald
2013-10-14 21:34 ` [PATCH v3 05/10] staging:iio:hmc5843: Rename _configure() to _set_mode() Peter Meerwald
2013-10-14 21:34 ` [PATCH v3 06/10] staging:iio:hmc5843: Reorganize _set_meas_conf() Peter Meerwald
2013-10-14 21:34 ` Peter Meerwald [this message]
2013-10-14 21:34 ` [PATCH v3 08/10] staging:iio:hmc5843: Introduce _set_range_gain() Peter Meerwald
2013-10-14 21:34 ` [PATCH v3 09/10] staging:iio:hmc5843: Check initialization and chip identifier Peter Meerwald
2013-10-14 21:34 ` [PATCH v3 10/10] staging:iio:hmc5843: Trivial cleanups Peter Meerwald
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