[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-Id: <20190729190755.698209247@linuxfoundation.org>
Date: Mon, 29 Jul 2019 21:21:31 +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>,
Lee Jones <lee.jones@...aro.org>,
Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.2 095/215] mfd: cros_ec: Register cros_ec_lid_angle driver when presented
[ Upstream commit 1bb407f17c5316888c3c446e26cb2bb78943f236 ]
Register driver when EC indicates has precise lid angle calculation code
running.
Fix incorrect extra resource allocation in cros_ec_sensors_register().
Signed-off-by: Gwendal Grignou <gwendal@...omium.org>
Signed-off-by: Lee Jones <lee.jones@...aro.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
drivers/mfd/cros_ec_dev.c | 13 ++++++++++---
1 file changed, 10 insertions(+), 3 deletions(-)
diff --git a/drivers/mfd/cros_ec_dev.c b/drivers/mfd/cros_ec_dev.c
index a5391f96eafd..607383b67cf1 100644
--- a/drivers/mfd/cros_ec_dev.c
+++ b/drivers/mfd/cros_ec_dev.c
@@ -285,13 +285,15 @@ static void cros_ec_sensors_register(struct cros_ec_dev *ec)
resp = (struct ec_response_motion_sense *)msg->data;
sensor_num = resp->dump.sensor_count;
- /* Allocate 1 extra sensors in FIFO are needed */
- sensor_cells = kcalloc(sensor_num + 1, sizeof(struct mfd_cell),
+ /*
+ * Allocate 2 extra sensors if lid angle sensor and/or FIFO are needed.
+ */
+ sensor_cells = kcalloc(sensor_num + 2, sizeof(struct mfd_cell),
GFP_KERNEL);
if (sensor_cells == NULL)
goto error;
- sensor_platforms = kcalloc(sensor_num + 1,
+ sensor_platforms = kcalloc(sensor_num,
sizeof(struct cros_ec_sensor_platform),
GFP_KERNEL);
if (sensor_platforms == NULL)
@@ -351,6 +353,11 @@ static void cros_ec_sensors_register(struct cros_ec_dev *ec)
sensor_cells[id].name = "cros-ec-ring";
id++;
}
+ if (cros_ec_check_features(ec,
+ EC_FEATURE_REFINED_TABLET_MODE_HYSTERESIS)) {
+ sensor_cells[id].name = "cros-ec-lid-angle";
+ id++;
+ }
ret = mfd_add_devices(ec->dev, 0, sensor_cells, id,
NULL, 0, NULL);
--
2.20.1
Powered by blists - more mailing lists