From d4cee9509e508df34d1dbfad6b42e5bf907d20fd Mon Sep 17 00:00:00 2001 From: Rushikesh S Kadam Date: Fri, 1 Mar 2019 13:50:54 +0530 Subject: mfd: cros_ec: Instantiate properly CrOS ISH MCU device Integrated Sensor Hub (ISH) is also a MCU running EC having feature bit EC_FEATURE_ISH. Instantiate it as a special CrOS EC device with device name 'cros_ish'. Signed-off-by: Rushikesh S Kadam Reviewed-by: Andy Shevchenko Acked-by: Enric Balletbo i Serra Reviewed-by: Gwendal Grignou Signed-off-by: Lee Jones --- drivers/mfd/cros_ec_dev.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) (limited to 'drivers/mfd') diff --git a/drivers/mfd/cros_ec_dev.c b/drivers/mfd/cros_ec_dev.c index d275deaecb12..596f124f2a54 100644 --- a/drivers/mfd/cros_ec_dev.c +++ b/drivers/mfd/cros_ec_dev.c @@ -418,6 +418,19 @@ static int ec_device_probe(struct platform_device *pdev) device_initialize(&ec->class_dev); cdev_init(&ec->cdev, &fops); + /* + * Check whether this is actually an Integrated Sensor Hub (ISH) + * rather than an EC. + */ + if (cros_ec_check_features(ec, EC_FEATURE_ISH)) { + dev_info(dev, "CrOS ISH MCU detected.\n"); + /* + * Help userspace differentiating ECs from ISH MCU, + * regardless of the probing order. + */ + ec_platform->ec_name = CROS_EC_DEV_ISH_NAME; + } + /* * Add the class device * Link to the character device for creating the /dev entry -- cgit v1.2.3-59-g8ed1b