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| author | Enric Balletbo i Serra <enric.balletbo@collabora.com> | 2019-05-08 11:19:55 +0200 |
|---|---|---|
| committer | Lee Jones <lee.jones@linaro.org> | 2019-05-14 08:13:28 +0100 |
| commit | 90486af5e0f7334091b94264a84713611933e97e (patch) | |
| tree | 922bc0011aeb7055040e093d8c9fb2649bcfe672 /include/linux/mfd | |
| parent | 93abf68b6bcb50481d84db41e4d7e7e143f24757 (diff) | |
| download | linux-stable-90486af5e0f7334091b94264a84713611933e97e.tar.gz linux-stable-90486af5e0f7334091b94264a84713611933e97e.tar.bz2 linux-stable-90486af5e0f7334091b94264a84713611933e97e.zip | |
mfd: cros_ec: Instantiate properly CrOS FP MCU device
Support Fingerprint MCU as a special of CrOS EC devices. The current FP
MCU uses the same EC SPI protocol v3 as other CrOS EC devices on a SPI
bus.
When a MCU has fingerprint support (aka EC_FEATURE_FINGERPRINT), it is
instantiated as a special CrOS EC device with device name 'cros_fp'. So
regardless of the probing order between the actual cros_ec and cros_fp,
the userspace and other kernel drivers should not confuse them.
Signed-off-by: Vincent Palatin <vpalatin@chromium.org>
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Diffstat (limited to 'include/linux/mfd')
| -rw-r--r-- | include/linux/mfd/cros_ec.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/mfd/cros_ec.h b/include/linux/mfd/cros_ec.h index 31c88a0070a3..276079699504 100644 --- a/include/linux/mfd/cros_ec.h +++ b/include/linux/mfd/cros_ec.h @@ -23,6 +23,7 @@ #include <linux/mutex.h> #define CROS_EC_DEV_NAME "cros_ec" +#define CROS_EC_DEV_FP_NAME "cros_fp" #define CROS_EC_DEV_PD_NAME "cros_pd" #define CROS_EC_DEV_ISH_NAME "cros_ish" |