linux-kernel - [PATCH 5.8 111/177] iio: cros_ec: Set Gyroscope default frequency to 25Hz

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Message-Id: <20200915140658.968463694@linuxfoundation.org>
Date:   Tue, 15 Sep 2020 16:13:02 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Gwendal Grignou <gwendal@...omium.org>,
        Enric Balletbo i Serra <enric.balletbo@...labora.com>,
        Stable@...r.kernel.org,
        Jonathan Cameron <Jonathan.Cameron@...wei.com>
Subject: [PATCH 5.8 111/177] iio: cros_ec: Set Gyroscope default frequency to 25Hz

From: Gwendal Grignou <gwendal@...omium.org>

commit 336306790b2bbf7ce837625fa3b24ba724d05838 upstream.

BMI160 Minimium gyroscope frequency in normal mode is 25Hz.
When older EC firmware do not report their sensors frequencies,
use 25Hz as the minimum for gyroscope to be sure it works on BMI160.

Fixes: ae7b02ad2f32d ("iio: common: cros_ec_sensors: Expose cros_ec_sensors frequency range via iio sysfs")
Signed-off-by: Gwendal Grignou <gwendal@...omium.org>
Reviewed-by: Enric Balletbo i Serra <enric.balletbo@...labora.com>
Cc: <Stable@...r.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@...wei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/iio/common/cros_ec_sensors/cros_ec_sensors_core.c |    5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

--- a/drivers/iio/common/cros_ec_sensors/cros_ec_sensors_core.c
+++ b/drivers/iio/common/cros_ec_sensors/cros_ec_sensors_core.c
@@ -72,10 +72,13 @@ static void get_default_min_max_freq(enu
 
 	switch (type) {
 	case MOTIONSENSE_TYPE_ACCEL:
-	case MOTIONSENSE_TYPE_GYRO:
 		*min_freq = 12500;
 		*max_freq = 100000;
 		break;
+	case MOTIONSENSE_TYPE_GYRO:
+		*min_freq = 25000;
+		*max_freq = 100000;
+		break;
 	case MOTIONSENSE_TYPE_MAG:
 		*min_freq = 5000;
 		*max_freq = 25000;