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bus: mhi: host: Enable support for miscellaneous MHI features

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Add a new MHI_BUS_MISC Kconfig entry and support to build
miscellaneous MHI features in Makefile if enabled. It can be
enabled only if necessary for certain controllers and is tied to
module init/exit and MHI registration.

Change-Id: I36429eed9e786681150aceb494bcd06cf3d09ca9
Signed-off-by: Bhaumik Bhatt <bbhatt@codeaurora.org>
Signed-off-by: Lazarus Motha <quic_lmotha@quicinc.com>
This commit is contained in:
Bhaumik Bhatt 2020-11-20 10:00:15 -08:00 committed by Gerrit - the friendly Code Review server
parent 20a444391a
commit 4cdf3aac4d
1 changed files with 12 additions and 0 deletions
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12
drivers/bus/mhi/host/init.c
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@ -1021,6 +1021,14 @@ int mhi_register_controller(struct mhi_controller *mhi_cntrl,
mhi_cntrl->mhi_dev = mhi_dev;
ret = mhi_misc_register_controller(mhi_cntrl);
if (ret) {
dev_err(mhi_cntrl->cntrl_dev,
"Could not enable miscellaneous features\n");
mhi_cntrl->mhi_dev = NULL;
goto err_release_dev;
}
mhi_create_debugfs(mhi_cntrl);
return 0;
@ -1050,6 +1058,8 @@ void mhi_unregister_controller(struct mhi_controller *mhi_cntrl)
unsigned int i;
mhi_deinit_free_irq(mhi_cntrl);
mhi_misc_unregister_controller(mhi_cntrl);
/* Free the memory controller wanted to preserve for BHIe images */
if (mhi_cntrl->img_pre_alloc) {
mhi_cntrl->img_pre_alloc = false;
@ -1445,12 +1455,14 @@ struct bus_type mhi_bus_type = {
static int __init mhi_init(void)
{
mhi_misc_init();
mhi_debugfs_init();
return bus_register(&mhi_bus_type);
}
static void __exit mhi_exit(void)
{
mhi_misc_exit();
mhi_debugfs_exit();
bus_unregister(&mhi_bus_type);
}