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| author |   Gwendal Grignou <gwendal@chromium.org> | 2018-03-23 18:42:47 +0100 |
|---|---|---|
| committer |   Benson Leung <bleung@chromium.org> | 2018-04-10 22:25:07 -0700 |
| commit | c1d1e91aff3d1183d6b16a282c2575e3e006cee4 (patch) | |
| tree | c28563a8b73ebda8598b47f059ab328df9cc65e9 /drivers/mfd | |
| parent | platform/chrome: cros_ec_debugfs: Add PD port info to debugfs (diff) | |
| download | linux-dev-c1d1e91aff3d1183d6b16a282c2575e3e006cee4.tar.xz linux-dev-c1d1e91aff3d1183d6b16a282c2575e3e006cee4.zip | |
platform/chrome: mfd/cros_ec_dev: Add sysfs entry to set keyboard wake lid angle
This adds a sysfs attribute (/sys/class/chromeos/cros_ec/kb_wake_angle)
used to set and get the keyboard wake lid angle. This attribute is
present only if 2 accelerometers are controlled by the EC.
This patch also moves the cros_ec features check before the device is
added so the features map obtained from the EC is ready on time.
Signed-off-by: Gwendal Grignou <gwendal@chromium.org>
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Benson Leung <bleung@chromium.org>
Diffstat (limited to 'drivers/mfd')
| -rw-r--r-- | drivers/mfd/cros_ec_dev.c | 31 |
1 files changed, 13 insertions, 18 deletions
diff --git a/drivers/mfd/cros_ec_dev.c b/drivers/mfd/cros_ec_dev.c index e4fafdd96e5e..eafd06f62a3a 100644 --- a/drivers/mfd/cros_ec_dev.c +++ b/drivers/mfd/cros_ec_dev.c @@ -305,8 +305,8 @@ 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 2 extra sensors in case lid angle or FIFO are needed */ - sensor_cells = kzalloc(sizeof(struct mfd_cell) * (sensor_num + 2), + /* Allocate 1 extra sensors in FIFO are needed */ + sensor_cells = kzalloc(sizeof(struct mfd_cell) * (sensor_num + 1), GFP_KERNEL); if (sensor_cells == NULL) goto error; @@ -362,16 +362,10 @@ static void cros_ec_sensors_register(struct cros_ec_dev *ec) sensor_type[resp->info.type]++; id++; } - if (sensor_type[MOTIONSENSE_TYPE_ACCEL] >= 2) { - sensor_platforms[id].sensor_num = sensor_num; - sensor_cells[id].name = "cros-ec-angle"; - sensor_cells[id].id = 0; - sensor_cells[id].platform_data = &sensor_platforms[id]; - sensor_cells[id].pdata_size = - sizeof(struct cros_ec_sensor_platform); - id++; - } + if (sensor_type[MOTIONSENSE_TYPE_ACCEL] >= 2) + ec->has_kb_wake_angle = true; + if (cros_ec_check_features(ec, EC_FEATURE_MOTION_SENSE_FIFO)) { sensor_cells[id].name = "cros-ec-ring"; id++; @@ -424,6 +418,14 @@ static int ec_device_probe(struct platform_device *pdev) goto failed; } + /* check whether this EC is a sensor hub. */ + if (cros_ec_check_features(ec, EC_FEATURE_MOTION_SENSE)) + cros_ec_sensors_register(ec); + + /* Take control of the lightbar from the EC. */ + lb_manual_suspend_ctrl(ec, 1); + + /* We can now add the sysfs class, we know which parameter to show */ retval = cdev_device_add(&ec->cdev, &ec->class_dev); if (retval) { dev_err(dev, "cdev_device_add failed => %d\n", retval); @@ -433,13 +435,6 @@ static int ec_device_probe(struct platform_device *pdev) if (cros_ec_debugfs_init(ec)) dev_warn(dev, "failed to create debugfs directory\n"); - /* check whether this EC is a sensor hub. */ - if (cros_ec_check_features(ec, EC_FEATURE_MOTION_SENSE)) - cros_ec_sensors_register(ec); - - /* Take control of the lightbar from the EC. */ - lb_manual_suspend_ctrl(ec, 1); - return 0; failed: |