kernel/drivers/platform/chrome, branch linux-5.7.y

platform/chrome: cros_ec_ishtp: Fix a double-unlock issue

2020-08-21T11:07:32Z

[ Upstream commit aaa3cbbac326c95308e315f1ab964a3369c4d07d ] In function cros_ec_ishtp_probe(), "up_write" is already called before function "cros_ec_dev_init". But "up_write" will be called again after the calling of the function "cros_ec_dev_init" failed. Thus add a call of the function “down_write” in this if branch for the completion of the exception handling. Fixes: 26a14267aff2 ("platform/chrome: Add ChromeOS EC ISHTP driver") Signed-off-by: Qiushi Wu Tested-by: Mathew King Signed-off-by: Enric Balletbo i Serra Signed-off-by: Sasha Levin

platform/chrome: cros_ec_sensorhub: Allocate sensorhub resource before claiming sensors

2020-04-29T21:17:45Z

Allocate callbacks array before enumerating the sensors: The probe routine for these sensors (for instance cros_ec_sensors_probe) can be called within the sensorhub probe routine (cros_ec_sensors_probe()) Fixes: 145d59baff594 ("platform/chrome: cros_ec_sensorhub: Add FIFO support") Signed-off-by: Gwendal Grignou Reported-by: Douglas Anderson Tested-by: Douglas Anderson Signed-off-by: Enric Balletbo i Serra

platform/chrome: cros_ec_sensorhub: Add missing '\n' in log messages

2020-04-13T14:31:33Z

Message logged by 'dev_xxx()' or 'pr_xxx()' should end with a '\n'. Fixes: 145d59baff59 ("platform/chrome: cros_ec_sensorhub: Add FIFO support") Signed-off-by: Christophe JAILLET Signed-off-by: Enric Balletbo i Serra

platform/chrome: cros_ec_sensorhub: Off by one in cros_sensorhub_send_sample()

2020-04-13T06:09:27Z

The sensorhub->push_data[] array has sensorhub->sensor_num elements. It's allocated in cros_ec_sensorhub_ring_add(). So the > should be >= to prevent a read one element beyond the end of the array. Fixes: 145d59baff59 ("platform/chrome: cros_ec_sensorhub: Add FIFO support") Signed-off-by: Dan Carpenter Reviewed-by: Guenter Roeck Signed-off-by: Enric Balletbo i Serra

platform/chrome: cros_ec_spi: Wait for USECS, not NSECS

2020-04-07T21:42:08Z

The use of `delay_usecs` in terminate_request() was replaced with the new `delay` struct used by the SPI subsystem, however the unit was set to SPI_DELAY_UNIT_NSECS instead of SPI_DELAY_UNIT_USECS. This fixes that. Fixes: 7d3ca507fda9 ("platform/chrome: cros_ec_spi: Use new structure for SPI transfer delays") Signed-off-by: Benson Leung

platform/chrome: cros_ec_sensorhub: Add median filter

2020-03-28T21:04:32Z

Events are timestamped in EC time space, their timestamps need to be converted in host time space. The assumption is the time delta between when the interrupt is sent by the EC and when it is receive by the host is a [small] constant. This is not always true, even with hard-wired interrupt. To mitigate worst offenders, add a median filter to weed out bigger than expected delays. Signed-off-by: Gwendal Grignou Acked-by: Jonathan Cameron Acked-by: Lee Jones Acked-by: Andy Shevchenko Signed-off-by: Enric Balletbo i Serra

platform/chrome: cros_ec_sensorhub: Add code to spread timestmap

2020-03-28T21:04:32Z

EC FIFO can send sensor events in batch. Spread them based on previous (TSa) and currnet timestamp (TSb) EC FIFO iio events +-----------+ | TSa | +-----------+ +---------------------------------------+ | event 1 | | event 1 | TSb - (TSb - TSa)/n * (n-1) | +-----------+ +---------------------------------------+ | event 2 | | event 2 | TSb - (TSb - TSa)/n * (n-2) | +-----------+ +---------------------------------------+ | ... | ------> | .... | | +-----------+ +---------------------------------------+ | event n-1 | | event 2 | TSb - (TSb - TSa)/n | +-----------+ +---------------------------------------+ | event n | | event 2 | TSb | +-----------+ +---------------------------------------+ | TSb | +-----------+ Signed-off-by: Gwendal Grignou Acked-by: Jonathan Cameron Acked-by: Lee Jones Acked-by: Andy Shevchenko Signed-off-by: Enric Balletbo i Serra

platform/chrome: cros_ec_sensorhub: Add FIFO support

2020-03-28T21:04:32Z

cros_ec_sensorhub registers a listener and query motion sense FIFO, spread to iio sensors registers. To test, we can use libiio: iiod& iio_readdev -u ip:localhost -T 10000 -s 25 -b 16 cros-ec-gyro | od -x Signed-off-by: Gwendal Grignou Reviewed-by: Jonathan Cameron Acked-by: Andy Shevchenko Signed-off-by: Enric Balletbo i Serra

platform/chrome: cros_ec_sensorhub: Add the number of sensors in sensorhub

2020-03-28T21:04:32Z

To better manage resources, store the number of sensors reported by the EC. Signed-off-by: Gwendal Grignou Signed-off-by: Enric Balletbo i Serra

platform/chrome: chromeos_laptop: make I2C API conversion complete

2020-03-27T17:25:32Z

When converting to i2c_new_scanned_device(), it was overlooked that a conversion to i2c_new_client_device() was also needed. Fix it. Fixes: c82ebf1bf738 ("platform/chrome: chromeos_laptop: Convert to i2c_new_scanned_device") Signed-off-by: Wolfram Sang Signed-off-by: Enric Balletbo i Serra