From: Jean-Baptiste Maneyrol <jmaneyrol@invensense.com>
To: jic23@kernel.org, linux-iio@vger.kernel.org
Cc: Jean-Baptiste Maneyrol <jmaneyrol@invensense.com>
Subject: [PATCH 07/13] iio: imu: inv_mpu6050: fix sleep time when turning regulators on
Date: Wed, 12 Feb 2020 18:40:42 +0100 [thread overview]
Message-ID: <20200212174048.1034-8-jmaneyrol@invensense.com> (raw)
In-Reply-To: <20200212174048.1034-1-jmaneyrol@invensense.com>
Turning vdd regulator on requires a consequent sleep for the
chip to power on correctly.
Turning vddio regulator is much faster.
Signed-off-by: Jean-Baptiste Maneyrol <jmaneyrol@invensense.com>
---
drivers/iio/imu/inv_mpu6050/inv_mpu_core.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c b/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c
index 3502b996671c..63cdde20df7e 100644
--- a/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c
+++ b/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c
@@ -1201,7 +1201,7 @@ static int inv_mpu_core_enable_regulator_vddio(struct inv_mpu6050_state *st)
"Failed to enable vddio regulator: %d\n", result);
} else {
/* Give the device a little bit of time to start up. */
- usleep_range(35000, 70000);
+ usleep_range(3000, 5000);
}
return result;
@@ -1321,6 +1321,7 @@ int inv_mpu_core_probe(struct regmap *regmap, int irq, const char *name,
dev_err(dev, "Failed to enable vdd regulator: %d\n", result);
return result;
}
+ msleep(INV_MPU6050_POWER_UP_TIME);
result = inv_mpu_core_enable_regulator_vddio(st);
if (result) {
--
2.17.1
next prev parent reply other threads:[~2020-02-12 17:41 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-12 17:40 [PATCH 00/13] Rework sensors engines and power management Jean-Baptiste Maneyrol
2020-02-12 17:40 ` [PATCH 01/13] iio: imu: inv_mpu6050: enable i2c aux mux bypass only once Jean-Baptiste Maneyrol
2020-02-15 17:30 ` Jonathan Cameron
2020-02-18 16:03 ` Jean-Baptiste Maneyrol
2020-02-12 17:40 ` [PATCH 02/13] iio: imu: inv_mpu6050: delete useless check Jean-Baptiste Maneyrol
2020-02-12 17:40 ` [PATCH 03/13] iio: imu: inv_mpu6050: set power on/off only once during all init Jean-Baptiste Maneyrol
2020-02-12 17:40 ` [PATCH 04/13] iio: imu: inv_mpu6050: simplify polling magnetometer Jean-Baptiste Maneyrol
2020-02-12 17:40 ` [PATCH 05/13] iio: imu: inv_mpu6050: early init of chip_config for use at setup Jean-Baptiste Maneyrol
2020-02-12 17:40 ` [PATCH 06/13] iio: imu: inv_mpu6050: add all signal path resets at init Jean-Baptiste Maneyrol
2020-02-12 17:40 ` Jean-Baptiste Maneyrol [this message]
2020-02-12 17:40 ` [PATCH 08/13] iio: imu: inv_mpu6050: rewrite power and engine management Jean-Baptiste Maneyrol
2020-02-15 18:09 ` Jonathan Cameron
2020-02-12 17:40 ` [PATCH 09/13] iio: imu: inv_mpu6050: fix data polling interface Jean-Baptiste Maneyrol
2020-02-12 17:40 ` [PATCH 10/13] iio: imu: inv_mpu6050: factorize fifo enable/disable Jean-Baptiste Maneyrol
2020-02-12 17:40 ` [PATCH 11/13] iio: imu: inv_mpu6050: dynamic sampling rate change Jean-Baptiste Maneyrol
2020-02-12 17:40 ` [PATCH 12/13] iio: imu: inv_mpu6050: use runtime pm with autosuspend Jean-Baptiste Maneyrol
2020-02-15 18:22 ` Jonathan Cameron
2020-02-18 16:44 ` Jean-Baptiste Maneyrol
2020-02-12 17:40 ` [PATCH 13/13] iio: imu: inv_mpu6050: temperature only work with accel/gyro Jean-Baptiste Maneyrol
2020-02-15 18:23 ` Jonathan Cameron
2020-02-18 16:46 ` Jean-Baptiste Maneyrol
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