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authorManivannan Sadhasivam <manivannan.sadhasivam@linaro.org>2022-04-05 19:27:54 +0530
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2022-04-26 13:17:42 +0200
commitc268c0a8a33047cd957fecc1349d09a68eb6ad9e (patch)
tree3590d731818a86bf5f04bb7ea7b790b079c3d873 /drivers/bus
parente4b7b5f0f30aaa4677126e04220677a02839e1c4 (diff)
downloadlinux-c268c0a8a33047cd957fecc1349d09a68eb6ad9e.tar.bz2
bus: mhi: ep: Add uevent support for module autoloading
Add uevent support to MHI endpoint bus so that the client drivers can be autoloaded by udev when the MHI endpoint 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. The MHI endpoint reused the mhi_device_id structure of the MHI bus. Reviewed-by: Alex Elder <elder@linaro.org> Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Link: https://lore.kernel.org/r/20220405135754.6622-19-manivannan.sadhasivam@linaro.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/bus')
-rw-r--r--drivers/bus/mhi/ep/main.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/bus/mhi/ep/main.c b/drivers/bus/mhi/ep/main.c
index bae5f40ec15e..40109a79017a 100644
--- a/drivers/bus/mhi/ep/main.c
+++ b/drivers/bus/mhi/ep/main.c
@@ -1536,6 +1536,14 @@ void mhi_ep_driver_unregister(struct mhi_ep_driver *mhi_drv)
}
EXPORT_SYMBOL_GPL(mhi_ep_driver_unregister);
+static int mhi_ep_uevent(struct device *dev, struct kobj_uevent_env *env)
+{
+ struct mhi_ep_device *mhi_dev = to_mhi_ep_device(dev);
+
+ return add_uevent_var(env, "MODALIAS=" MHI_EP_DEVICE_MODALIAS_FMT,
+ mhi_dev->name);
+}
+
static int mhi_ep_match(struct device *dev, struct device_driver *drv)
{
struct mhi_ep_device *mhi_dev = to_mhi_ep_device(dev);
@@ -1562,6 +1570,7 @@ struct bus_type mhi_ep_bus_type = {
.name = "mhi_ep",
.dev_name = "mhi_ep",
.match = mhi_ep_match,
+ .uevent = mhi_ep_uevent,
};
static int __init mhi_ep_init(void)