137aa055cSEnric Balletbo i Serra // SPDX-License-Identifier: GPL-2.0
2c14dca07SEnric Balletbo i Serra /*
3c14dca07SEnric Balletbo i Serra * cros_ec_sensors - Driver for Chrome OS Embedded Controller sensors.
4c14dca07SEnric Balletbo i Serra *
5c14dca07SEnric Balletbo i Serra * Copyright (C) 2016 Google, Inc
6c14dca07SEnric Balletbo i Serra *
7c14dca07SEnric Balletbo i Serra * This driver uses the cros-ec interface to communicate with the Chrome OS
8c14dca07SEnric Balletbo i Serra * EC about sensors data. Data access is presented through iio sysfs.
9c14dca07SEnric Balletbo i Serra */
10c14dca07SEnric Balletbo i Serra
11c14dca07SEnric Balletbo i Serra #include <linux/device.h>
12c14dca07SEnric Balletbo i Serra #include <linux/iio/buffer.h>
135a0b8cb4SGwendal Grignou #include <linux/iio/common/cros_ec_sensors_core.h>
14c14dca07SEnric Balletbo i Serra #include <linux/iio/iio.h>
15c14dca07SEnric Balletbo i Serra #include <linux/iio/kfifo_buf.h>
16c14dca07SEnric Balletbo i Serra #include <linux/iio/trigger_consumer.h>
17c14dca07SEnric Balletbo i Serra #include <linux/iio/triggered_buffer.h>
18c14dca07SEnric Balletbo i Serra #include <linux/kernel.h>
191f035055SNuno Sá #include <linux/mod_devicetable.h>
20c14dca07SEnric Balletbo i Serra #include <linux/module.h>
21840d9f13SEnric Balletbo i Serra #include <linux/platform_data/cros_ec_commands.h>
22840d9f13SEnric Balletbo i Serra #include <linux/platform_data/cros_ec_proto.h>
23c14dca07SEnric Balletbo i Serra #include <linux/platform_device.h>
24c14dca07SEnric Balletbo i Serra #include <linux/slab.h>
25c14dca07SEnric Balletbo i Serra
26c14dca07SEnric Balletbo i Serra #define CROS_EC_SENSORS_MAX_CHANNELS 4
27c14dca07SEnric Balletbo i Serra
28c14dca07SEnric Balletbo i Serra /* State data for ec_sensors iio driver. */
29c14dca07SEnric Balletbo i Serra struct cros_ec_sensors_state {
30c14dca07SEnric Balletbo i Serra /* Shared by all sensors */
31c14dca07SEnric Balletbo i Serra struct cros_ec_sensors_core_state core;
32c14dca07SEnric Balletbo i Serra
33c14dca07SEnric Balletbo i Serra struct iio_chan_spec channels[CROS_EC_SENSORS_MAX_CHANNELS];
34c14dca07SEnric Balletbo i Serra };
35c14dca07SEnric Balletbo i Serra
cros_ec_sensors_read(struct iio_dev * indio_dev,struct iio_chan_spec const * chan,int * val,int * val2,long mask)36c14dca07SEnric Balletbo i Serra static int cros_ec_sensors_read(struct iio_dev *indio_dev,
37c14dca07SEnric Balletbo i Serra struct iio_chan_spec const *chan,
38c14dca07SEnric Balletbo i Serra int *val, int *val2, long mask)
39c14dca07SEnric Balletbo i Serra {
40c14dca07SEnric Balletbo i Serra struct cros_ec_sensors_state *st = iio_priv(indio_dev);
41c14dca07SEnric Balletbo i Serra s16 data = 0;
42c14dca07SEnric Balletbo i Serra s64 val64;
43c14dca07SEnric Balletbo i Serra int i;
445668bfddSEnric Balletbo i Serra int ret;
45c14dca07SEnric Balletbo i Serra int idx = chan->scan_index;
46c14dca07SEnric Balletbo i Serra
47c14dca07SEnric Balletbo i Serra mutex_lock(&st->core.cmd_lock);
48c14dca07SEnric Balletbo i Serra
49c14dca07SEnric Balletbo i Serra switch (mask) {
50c14dca07SEnric Balletbo i Serra case IIO_CHAN_INFO_RAW:
51c14dca07SEnric Balletbo i Serra ret = st->core.read_ec_sensors_data(indio_dev, 1 << idx, &data);
52c14dca07SEnric Balletbo i Serra if (ret < 0)
53c14dca07SEnric Balletbo i Serra break;
54a096926eSEnric Balletbo i Serra ret = IIO_VAL_INT;
55c14dca07SEnric Balletbo i Serra *val = data;
56c14dca07SEnric Balletbo i Serra break;
57c14dca07SEnric Balletbo i Serra case IIO_CHAN_INFO_CALIBBIAS:
58c14dca07SEnric Balletbo i Serra st->core.param.cmd = MOTIONSENSE_CMD_SENSOR_OFFSET;
59c14dca07SEnric Balletbo i Serra st->core.param.sensor_offset.flags = 0;
60c14dca07SEnric Balletbo i Serra
61c14dca07SEnric Balletbo i Serra ret = cros_ec_motion_send_host_cmd(&st->core, 0);
62c14dca07SEnric Balletbo i Serra if (ret < 0)
63c14dca07SEnric Balletbo i Serra break;
64c14dca07SEnric Balletbo i Serra
65c14dca07SEnric Balletbo i Serra /* Save values */
66c14dca07SEnric Balletbo i Serra for (i = CROS_EC_SENSOR_X; i < CROS_EC_SENSOR_MAX_AXIS; i++)
67ed1f2e85SGwendal Grignou st->core.calib[i].offset =
68c14dca07SEnric Balletbo i Serra st->core.resp->sensor_offset.offset[i];
69a096926eSEnric Balletbo i Serra ret = IIO_VAL_INT;
70ed1f2e85SGwendal Grignou *val = st->core.calib[idx].offset;
71ed1f2e85SGwendal Grignou break;
72ed1f2e85SGwendal Grignou case IIO_CHAN_INFO_CALIBSCALE:
73ed1f2e85SGwendal Grignou st->core.param.cmd = MOTIONSENSE_CMD_SENSOR_SCALE;
74ed1f2e85SGwendal Grignou st->core.param.sensor_offset.flags = 0;
75ed1f2e85SGwendal Grignou
76ed1f2e85SGwendal Grignou ret = cros_ec_motion_send_host_cmd(&st->core, 0);
771716420eSGuenter Roeck if (ret == -EPROTO || ret == -EOPNOTSUPP) {
78ed1f2e85SGwendal Grignou /* Reading calibscale is not supported on older EC. */
79ed1f2e85SGwendal Grignou *val = 1;
80ed1f2e85SGwendal Grignou *val2 = 0;
81ed1f2e85SGwendal Grignou ret = IIO_VAL_INT_PLUS_MICRO;
82ed1f2e85SGwendal Grignou break;
83ed1f2e85SGwendal Grignou } else if (ret) {
84ed1f2e85SGwendal Grignou break;
85ed1f2e85SGwendal Grignou }
86ed1f2e85SGwendal Grignou
87ed1f2e85SGwendal Grignou /* Save values */
88ed1f2e85SGwendal Grignou for (i = CROS_EC_SENSOR_X; i < CROS_EC_SENSOR_MAX_AXIS; i++)
89ed1f2e85SGwendal Grignou st->core.calib[i].scale =
90ed1f2e85SGwendal Grignou st->core.resp->sensor_scale.scale[i];
91ed1f2e85SGwendal Grignou
92ed1f2e85SGwendal Grignou *val = st->core.calib[idx].scale >> 15;
93ed1f2e85SGwendal Grignou *val2 = ((st->core.calib[idx].scale & 0x7FFF) * 1000000LL) /
94ed1f2e85SGwendal Grignou MOTION_SENSE_DEFAULT_SCALE;
95ed1f2e85SGwendal Grignou ret = IIO_VAL_INT_PLUS_MICRO;
96c14dca07SEnric Balletbo i Serra break;
97c14dca07SEnric Balletbo i Serra case IIO_CHAN_INFO_SCALE:
98c14dca07SEnric Balletbo i Serra st->core.param.cmd = MOTIONSENSE_CMD_SENSOR_RANGE;
99c14dca07SEnric Balletbo i Serra st->core.param.sensor_range.data = EC_MOTION_SENSE_NO_VALUE;
100c14dca07SEnric Balletbo i Serra
101c14dca07SEnric Balletbo i Serra ret = cros_ec_motion_send_host_cmd(&st->core, 0);
102c14dca07SEnric Balletbo i Serra if (ret < 0)
103c14dca07SEnric Balletbo i Serra break;
104c14dca07SEnric Balletbo i Serra
105c14dca07SEnric Balletbo i Serra val64 = st->core.resp->sensor_range.ret;
106c14dca07SEnric Balletbo i Serra switch (st->core.type) {
107c14dca07SEnric Balletbo i Serra case MOTIONSENSE_TYPE_ACCEL:
108c14dca07SEnric Balletbo i Serra /*
109c14dca07SEnric Balletbo i Serra * EC returns data in g, iio exepects m/s^2.
110c14dca07SEnric Balletbo i Serra * Do not use IIO_G_TO_M_S_2 to avoid precision loss.
111c14dca07SEnric Balletbo i Serra */
112c14dca07SEnric Balletbo i Serra *val = div_s64(val64 * 980665, 10);
113c14dca07SEnric Balletbo i Serra *val2 = 10000 << (CROS_EC_SENSOR_BITS - 1);
114c14dca07SEnric Balletbo i Serra ret = IIO_VAL_FRACTIONAL;
115c14dca07SEnric Balletbo i Serra break;
116c14dca07SEnric Balletbo i Serra case MOTIONSENSE_TYPE_GYRO:
117c14dca07SEnric Balletbo i Serra /*
118c14dca07SEnric Balletbo i Serra * EC returns data in dps, iio expects rad/s.
119c14dca07SEnric Balletbo i Serra * Do not use IIO_DEGREE_TO_RAD to avoid precision
120c14dca07SEnric Balletbo i Serra * loss. Round to the nearest integer.
121c14dca07SEnric Balletbo i Serra */
1223d02d708SGwendal Grignou *val = 0;
1233d02d708SGwendal Grignou *val2 = div_s64(val64 * 3141592653ULL,
1243d02d708SGwendal Grignou 180 << (CROS_EC_SENSOR_BITS - 1));
1253d02d708SGwendal Grignou ret = IIO_VAL_INT_PLUS_NANO;
126c14dca07SEnric Balletbo i Serra break;
127c14dca07SEnric Balletbo i Serra case MOTIONSENSE_TYPE_MAG:
128c14dca07SEnric Balletbo i Serra /*
129c14dca07SEnric Balletbo i Serra * EC returns data in 16LSB / uT,
130c14dca07SEnric Balletbo i Serra * iio expects Gauss
131c14dca07SEnric Balletbo i Serra */
132c14dca07SEnric Balletbo i Serra *val = val64;
133c14dca07SEnric Balletbo i Serra *val2 = 100 << (CROS_EC_SENSOR_BITS - 1);
134c14dca07SEnric Balletbo i Serra ret = IIO_VAL_FRACTIONAL;
135c14dca07SEnric Balletbo i Serra break;
136c14dca07SEnric Balletbo i Serra default:
137c14dca07SEnric Balletbo i Serra ret = -EINVAL;
138c14dca07SEnric Balletbo i Serra }
139c14dca07SEnric Balletbo i Serra break;
140c14dca07SEnric Balletbo i Serra default:
141c14dca07SEnric Balletbo i Serra ret = cros_ec_sensors_core_read(&st->core, chan, val, val2,
142c14dca07SEnric Balletbo i Serra mask);
143c14dca07SEnric Balletbo i Serra break;
144c14dca07SEnric Balletbo i Serra }
145c14dca07SEnric Balletbo i Serra mutex_unlock(&st->core.cmd_lock);
146c14dca07SEnric Balletbo i Serra
147c14dca07SEnric Balletbo i Serra return ret;
148c14dca07SEnric Balletbo i Serra }
149c14dca07SEnric Balletbo i Serra
cros_ec_sensors_write(struct iio_dev * indio_dev,struct iio_chan_spec const * chan,int val,int val2,long mask)150c14dca07SEnric Balletbo i Serra static int cros_ec_sensors_write(struct iio_dev *indio_dev,
151c14dca07SEnric Balletbo i Serra struct iio_chan_spec const *chan,
152c14dca07SEnric Balletbo i Serra int val, int val2, long mask)
153c14dca07SEnric Balletbo i Serra {
154c14dca07SEnric Balletbo i Serra struct cros_ec_sensors_state *st = iio_priv(indio_dev);
155c14dca07SEnric Balletbo i Serra int i;
1565668bfddSEnric Balletbo i Serra int ret;
157c14dca07SEnric Balletbo i Serra int idx = chan->scan_index;
158c14dca07SEnric Balletbo i Serra
159c14dca07SEnric Balletbo i Serra mutex_lock(&st->core.cmd_lock);
160c14dca07SEnric Balletbo i Serra
161c14dca07SEnric Balletbo i Serra switch (mask) {
162c14dca07SEnric Balletbo i Serra case IIO_CHAN_INFO_CALIBBIAS:
163ed1f2e85SGwendal Grignou st->core.calib[idx].offset = val;
164c14dca07SEnric Balletbo i Serra
165c14dca07SEnric Balletbo i Serra /* Send to EC for each axis, even if not complete */
166c14dca07SEnric Balletbo i Serra st->core.param.cmd = MOTIONSENSE_CMD_SENSOR_OFFSET;
167c14dca07SEnric Balletbo i Serra st->core.param.sensor_offset.flags =
168c14dca07SEnric Balletbo i Serra MOTION_SENSE_SET_OFFSET;
169c14dca07SEnric Balletbo i Serra for (i = CROS_EC_SENSOR_X; i < CROS_EC_SENSOR_MAX_AXIS; i++)
170c14dca07SEnric Balletbo i Serra st->core.param.sensor_offset.offset[i] =
171ed1f2e85SGwendal Grignou st->core.calib[i].offset;
172c14dca07SEnric Balletbo i Serra st->core.param.sensor_offset.temp =
173c14dca07SEnric Balletbo i Serra EC_MOTION_SENSE_INVALID_CALIB_TEMP;
174c14dca07SEnric Balletbo i Serra
175c14dca07SEnric Balletbo i Serra ret = cros_ec_motion_send_host_cmd(&st->core, 0);
176c14dca07SEnric Balletbo i Serra break;
177ed1f2e85SGwendal Grignou case IIO_CHAN_INFO_CALIBSCALE:
178ed1f2e85SGwendal Grignou st->core.calib[idx].scale = val;
179ed1f2e85SGwendal Grignou /* Send to EC for each axis, even if not complete */
180ed1f2e85SGwendal Grignou
181ed1f2e85SGwendal Grignou st->core.param.cmd = MOTIONSENSE_CMD_SENSOR_SCALE;
182ed1f2e85SGwendal Grignou st->core.param.sensor_offset.flags =
183ed1f2e85SGwendal Grignou MOTION_SENSE_SET_OFFSET;
184ed1f2e85SGwendal Grignou for (i = CROS_EC_SENSOR_X; i < CROS_EC_SENSOR_MAX_AXIS; i++)
185ed1f2e85SGwendal Grignou st->core.param.sensor_scale.scale[i] =
186ed1f2e85SGwendal Grignou st->core.calib[i].scale;
187ed1f2e85SGwendal Grignou st->core.param.sensor_scale.temp =
188ed1f2e85SGwendal Grignou EC_MOTION_SENSE_INVALID_CALIB_TEMP;
189ed1f2e85SGwendal Grignou
190ed1f2e85SGwendal Grignou ret = cros_ec_motion_send_host_cmd(&st->core, 0);
191ed1f2e85SGwendal Grignou break;
192c14dca07SEnric Balletbo i Serra case IIO_CHAN_INFO_SCALE:
193c14dca07SEnric Balletbo i Serra if (st->core.type == MOTIONSENSE_TYPE_MAG) {
194c14dca07SEnric Balletbo i Serra ret = -EINVAL;
195c14dca07SEnric Balletbo i Serra break;
196c14dca07SEnric Balletbo i Serra }
197c14dca07SEnric Balletbo i Serra st->core.param.cmd = MOTIONSENSE_CMD_SENSOR_RANGE;
198c14dca07SEnric Balletbo i Serra st->core.param.sensor_range.data = val;
199c14dca07SEnric Balletbo i Serra
200c14dca07SEnric Balletbo i Serra /* Always roundup, so caller gets at least what it asks for. */
201c14dca07SEnric Balletbo i Serra st->core.param.sensor_range.roundup = 1;
202c14dca07SEnric Balletbo i Serra
203c14dca07SEnric Balletbo i Serra ret = cros_ec_motion_send_host_cmd(&st->core, 0);
204e7e3b9d2SGwendal Grignou if (ret == 0) {
205e7e3b9d2SGwendal Grignou st->core.range_updated = true;
206e7e3b9d2SGwendal Grignou st->core.curr_range = val;
207e7e3b9d2SGwendal Grignou }
208c14dca07SEnric Balletbo i Serra break;
209c14dca07SEnric Balletbo i Serra default:
210c14dca07SEnric Balletbo i Serra ret = cros_ec_sensors_core_write(
211c14dca07SEnric Balletbo i Serra &st->core, chan, val, val2, mask);
212c14dca07SEnric Balletbo i Serra break;
213c14dca07SEnric Balletbo i Serra }
214c14dca07SEnric Balletbo i Serra
215c14dca07SEnric Balletbo i Serra mutex_unlock(&st->core.cmd_lock);
216c14dca07SEnric Balletbo i Serra
217c14dca07SEnric Balletbo i Serra return ret;
218c14dca07SEnric Balletbo i Serra }
219c14dca07SEnric Balletbo i Serra
220c14dca07SEnric Balletbo i Serra static const struct iio_info ec_sensors_info = {
221c14dca07SEnric Balletbo i Serra .read_raw = &cros_ec_sensors_read,
222c14dca07SEnric Balletbo i Serra .write_raw = &cros_ec_sensors_write,
223ae7b02adSFabien Lahoudere .read_avail = &cros_ec_sensors_core_read_avail,
224c14dca07SEnric Balletbo i Serra };
225c14dca07SEnric Balletbo i Serra
cros_ec_sensors_probe(struct platform_device * pdev)226c14dca07SEnric Balletbo i Serra static int cros_ec_sensors_probe(struct platform_device *pdev)
227c14dca07SEnric Balletbo i Serra {
228c14dca07SEnric Balletbo i Serra struct device *dev = &pdev->dev;
229c14dca07SEnric Balletbo i Serra struct iio_dev *indio_dev;
230c14dca07SEnric Balletbo i Serra struct cros_ec_sensors_state *state;
231c14dca07SEnric Balletbo i Serra struct iio_chan_spec *channel;
232c14dca07SEnric Balletbo i Serra int ret, i;
233c14dca07SEnric Balletbo i Serra
234c14dca07SEnric Balletbo i Serra indio_dev = devm_iio_device_alloc(&pdev->dev, sizeof(*state));
235c14dca07SEnric Balletbo i Serra if (!indio_dev)
236c14dca07SEnric Balletbo i Serra return -ENOMEM;
237c14dca07SEnric Balletbo i Serra
238aa984f1bSGwendal Grignou ret = cros_ec_sensors_core_init(pdev, indio_dev, true,
239*0b4ae3f6SGwendal Grignou cros_ec_sensors_capture);
240c14dca07SEnric Balletbo i Serra if (ret)
241c14dca07SEnric Balletbo i Serra return ret;
242c14dca07SEnric Balletbo i Serra
243c14dca07SEnric Balletbo i Serra indio_dev->info = &ec_sensors_info;
244c14dca07SEnric Balletbo i Serra state = iio_priv(indio_dev);
245c14dca07SEnric Balletbo i Serra for (channel = state->channels, i = CROS_EC_SENSOR_X;
246c14dca07SEnric Balletbo i Serra i < CROS_EC_SENSOR_MAX_AXIS; i++, channel++) {
247c14dca07SEnric Balletbo i Serra /* Common part */
248c14dca07SEnric Balletbo i Serra channel->info_mask_separate =
249c14dca07SEnric Balletbo i Serra BIT(IIO_CHAN_INFO_RAW) |
250ed1f2e85SGwendal Grignou BIT(IIO_CHAN_INFO_CALIBBIAS) |
251ed1f2e85SGwendal Grignou BIT(IIO_CHAN_INFO_CALIBSCALE);
252c14dca07SEnric Balletbo i Serra channel->info_mask_shared_by_all =
253c14dca07SEnric Balletbo i Serra BIT(IIO_CHAN_INFO_SCALE) |
254c14dca07SEnric Balletbo i Serra BIT(IIO_CHAN_INFO_SAMP_FREQ);
255ae7b02adSFabien Lahoudere channel->info_mask_shared_by_all_available =
256ae7b02adSFabien Lahoudere BIT(IIO_CHAN_INFO_SAMP_FREQ);
257c14dca07SEnric Balletbo i Serra channel->scan_type.realbits = CROS_EC_SENSOR_BITS;
258c14dca07SEnric Balletbo i Serra channel->scan_type.storagebits = CROS_EC_SENSOR_BITS;
259c14dca07SEnric Balletbo i Serra channel->scan_index = i;
260c14dca07SEnric Balletbo i Serra channel->ext_info = cros_ec_sensors_ext_info;
261c14dca07SEnric Balletbo i Serra channel->modified = 1;
262c14dca07SEnric Balletbo i Serra channel->channel2 = IIO_MOD_X + i;
263c14dca07SEnric Balletbo i Serra channel->scan_type.sign = 's';
264c14dca07SEnric Balletbo i Serra
265c14dca07SEnric Balletbo i Serra /* Sensor specific */
266c14dca07SEnric Balletbo i Serra switch (state->core.type) {
267c14dca07SEnric Balletbo i Serra case MOTIONSENSE_TYPE_ACCEL:
268c14dca07SEnric Balletbo i Serra channel->type = IIO_ACCEL;
269c14dca07SEnric Balletbo i Serra break;
270c14dca07SEnric Balletbo i Serra case MOTIONSENSE_TYPE_GYRO:
271c14dca07SEnric Balletbo i Serra channel->type = IIO_ANGL_VEL;
272c14dca07SEnric Balletbo i Serra break;
273c14dca07SEnric Balletbo i Serra case MOTIONSENSE_TYPE_MAG:
274c14dca07SEnric Balletbo i Serra channel->type = IIO_MAGN;
275c14dca07SEnric Balletbo i Serra break;
276c14dca07SEnric Balletbo i Serra default:
277c14dca07SEnric Balletbo i Serra dev_err(&pdev->dev, "Unknown motion sensor\n");
278c14dca07SEnric Balletbo i Serra return -EINVAL;
279c14dca07SEnric Balletbo i Serra }
280c14dca07SEnric Balletbo i Serra }
281c14dca07SEnric Balletbo i Serra
282c14dca07SEnric Balletbo i Serra /* Timestamp */
283c14dca07SEnric Balletbo i Serra channel->type = IIO_TIMESTAMP;
284c14dca07SEnric Balletbo i Serra channel->channel = -1;
285c14dca07SEnric Balletbo i Serra channel->scan_index = CROS_EC_SENSOR_MAX_AXIS;
286c14dca07SEnric Balletbo i Serra channel->scan_type.sign = 's';
287c14dca07SEnric Balletbo i Serra channel->scan_type.realbits = 64;
288c14dca07SEnric Balletbo i Serra channel->scan_type.storagebits = 64;
289c14dca07SEnric Balletbo i Serra
290c14dca07SEnric Balletbo i Serra indio_dev->channels = state->channels;
291c14dca07SEnric Balletbo i Serra indio_dev->num_channels = CROS_EC_SENSORS_MAX_CHANNELS;
292c14dca07SEnric Balletbo i Serra
293c14dca07SEnric Balletbo i Serra /* There is only enough room for accel and gyro in the io space */
294c14dca07SEnric Balletbo i Serra if ((state->core.ec->cmd_readmem != NULL) &&
295c14dca07SEnric Balletbo i Serra (state->core.type != MOTIONSENSE_TYPE_MAG))
296c14dca07SEnric Balletbo i Serra state->core.read_ec_sensors_data = cros_ec_sensors_read_lpc;
297c14dca07SEnric Balletbo i Serra else
298c14dca07SEnric Balletbo i Serra state->core.read_ec_sensors_data = cros_ec_sensors_read_cmd;
299c14dca07SEnric Balletbo i Serra
300*0b4ae3f6SGwendal Grignou return cros_ec_sensors_core_register(dev, indio_dev,
301*0b4ae3f6SGwendal Grignou cros_ec_sensors_push_data);
302c14dca07SEnric Balletbo i Serra }
303c14dca07SEnric Balletbo i Serra
304c14dca07SEnric Balletbo i Serra static const struct platform_device_id cros_ec_sensors_ids[] = {
305c14dca07SEnric Balletbo i Serra {
306c14dca07SEnric Balletbo i Serra .name = "cros-ec-accel",
307c14dca07SEnric Balletbo i Serra },
308c14dca07SEnric Balletbo i Serra {
309c14dca07SEnric Balletbo i Serra .name = "cros-ec-gyro",
310c14dca07SEnric Balletbo i Serra },
311c14dca07SEnric Balletbo i Serra {
312c14dca07SEnric Balletbo i Serra .name = "cros-ec-mag",
313c14dca07SEnric Balletbo i Serra },
314c14dca07SEnric Balletbo i Serra { /* sentinel */ }
315c14dca07SEnric Balletbo i Serra };
316c14dca07SEnric Balletbo i Serra MODULE_DEVICE_TABLE(platform, cros_ec_sensors_ids);
317c14dca07SEnric Balletbo i Serra
318c14dca07SEnric Balletbo i Serra static struct platform_driver cros_ec_sensors_platform_driver = {
319c14dca07SEnric Balletbo i Serra .driver = {
320c14dca07SEnric Balletbo i Serra .name = "cros-ec-sensors",
321e7e3b9d2SGwendal Grignou .pm = &cros_ec_sensors_pm_ops,
322c14dca07SEnric Balletbo i Serra },
323c14dca07SEnric Balletbo i Serra .probe = cros_ec_sensors_probe,
324c14dca07SEnric Balletbo i Serra .id_table = cros_ec_sensors_ids,
325c14dca07SEnric Balletbo i Serra };
326c14dca07SEnric Balletbo i Serra module_platform_driver(cros_ec_sensors_platform_driver);
327c14dca07SEnric Balletbo i Serra
328c14dca07SEnric Balletbo i Serra MODULE_DESCRIPTION("ChromeOS EC 3-axis sensors driver");
329c14dca07SEnric Balletbo i Serra MODULE_LICENSE("GPL v2");
330