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| author |   Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> | 2020-02-20 15:28:50 +0530 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-03-19 07:41:05 +0100 |
| commit | e6b0de469c5babfe29a86be289408ba2070ea44a (patch) | |
| tree | 134a586497353c5875d07e14467a7e21f7364b36 /drivers/bus | |
| parent | bus: mhi: core: Add support for data transfer (diff) | |
| download | linux-dev-e6b0de469c5babfe29a86be289408ba2070ea44a.tar.xz linux-dev-e6b0de469c5babfe29a86be289408ba2070ea44a.zip | |
bus: mhi: core: Add uevent support for module autoloading
Add uevent support to MHI bus so that the client drivers can be autoloaded
by udev when the MHI devices gets created. The client drivers are
expected to provide MODULE_DEVICE_TABLE with the MHI id_table struct so
that the alias can be exported.
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Reviewed-by: Jeffrey Hugo <jhugo@codeaurora.org>
Tested-by: Jeffrey Hugo <jhugo@codeaurora.org>
Link: https://lore.kernel.org/r/20200220095854.4804-13-manivannan.sadhasivam@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/bus')
| -rw-r--r-- | drivers/bus/mhi/core/init.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/bus/mhi/core/init.c b/drivers/bus/mhi/core/init.c index 7bfffa9a5ad1..5fb756ca335e 100644 --- a/drivers/bus/mhi/core/init.c +++ b/drivers/bus/mhi/core/init.c @@ -1210,6 +1210,14 @@ void mhi_driver_unregister(struct mhi_driver *mhi_drv) } EXPORT_SYMBOL_GPL(mhi_driver_unregister); +static int mhi_uevent(struct device *dev, struct kobj_uevent_env *env) +{ + struct mhi_device *mhi_dev = to_mhi_device(dev); + + return add_uevent_var(env, "MODALIAS=" MHI_DEVICE_MODALIAS_FMT, + mhi_dev->chan_name); +} + static int mhi_match(struct device *dev, struct device_driver *drv) { struct mhi_device *mhi_dev = to_mhi_device(dev); @@ -1236,6 +1244,7 @@ struct bus_type mhi_bus_type = { .name = "mhi", .dev_name = "mhi", .match = mhi_match, + .uevent = mhi_uevent, }; static int __init mhi_init(void) |