patch "drivers: iio: temperature: Add delay after the addressed reset" added to staging-linus

This is a note to let you know that I've just added the patch titled

drivers: iio: temperature: Add delay after the addressed reset

to my staging git tree which can be found at
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging.git
in the staging-linus branch.

The patch will show up in the next release of the linux-next tree (usually sometime within the next 24 hours during the week.)

The patch will hopefully also be merged in Linus's tree for the next -rc kernel release.

If you have any questions about this process, please let me know.

From cf5b1385d748b2f91b0c05bb301fcaf9bdbad385 Mon Sep 17 00:00:00 2001
From: Slaveyko Slaveykov <[email protected]>
Date: Wed, 16 Dec 2020 13:57:20 +0200
Subject: drivers: iio: temperature: Add delay after the addressed reset
command in mlx90632.c

After an I2C reset command, the mlx90632 needs some time before responding to other I2C commands. Without that delay, there is a chance that the I2C command(s) after the reset will not be accepted.

---
 drivers/iio/temperature/mlx90632.c | 6 ++++++
 1 file changed, 6 insertions(+)

index 503fe54a0bb9..608ccb1d8bc8 100644
@@ -248,6 +248,12 @@ static int mlx90632_set_meas_type(struct regmap *regmap, u8 type)
 	if (ret < 0)
 		return ret;
 
+	/*
+	 * Give the mlx90632 some time to reset properly before sending a new I2C command
+	 * if this is not done, the following I2C command(s) will not be accepted.
+	 */
+	usleep_range(150, 200);
+
 	ret = regmap_write_bits(regmap, MLX90632_REG_CONTROL,
 				 (MLX90632_CFG_MTYP_MASK | MLX90632_CFG_PWR_MASK),
 				 (MLX90632_MTYP_STATUS(type) | MLX90632_PWR_STATUS_HALT));

2.30.0