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| author | Rushikesh S Kadam <rushikesh.s.kadam@intel.com> | 2019-03-01 13:50:54 +0530 |
|---|---|---|
| committer | Lee Jones <lee.jones@linaro.org> | 2019-05-14 08:13:26 +0100 |
| commit | d4cee9509e508df34d1dbfad6b42e5bf907d20fd (patch) | |
| tree | d84cffc2ca0c11de30f46eee8256acb5c7c07eab /drivers | |
| parent | 730080a758fdc44fbfc214dd004553ef13d5b89b (diff) | |
| download | linux-stable-d4cee9509e508df34d1dbfad6b42e5bf907d20fd.tar.gz linux-stable-d4cee9509e508df34d1dbfad6b42e5bf907d20fd.tar.bz2 linux-stable-d4cee9509e508df34d1dbfad6b42e5bf907d20fd.zip | |
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 <rushikesh.s.kadam@intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com>
Acked-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Reviewed-by: Gwendal Grignou <gwendal@chromium.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/mfd/cros_ec_dev.c | 13 |
1 files changed, 13 insertions, 0 deletions
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 @@ -419,6 +419,19 @@ static int ec_device_probe(struct platform_device *pdev) 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 * in devtmpfs. |