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mhi: core: remove unused timesync device

Browse source 
Remove the unused timesync MHI device as we use the controller
device for timesync related activity instead.

Change-Id: If2bb5937cbf468d8778b89549afdb1d0a9af7782
Signed-off-by: Bhaumik Bhatt <bbhatt@codeaurora.org>
This commit is contained in:
Bhaumik Bhatt 2020-02-10 17:59:43 -08:00 • committed by Hemant Kumar
commit 6bc53ff9fa
3 changed files with 0 additions and 44 deletions
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4
drivers/bus/mhi/core/mhi_init.c
View file

@ -1779,10 +1779,6 @@ static int mhi_driver_remove(struct device *dev)
mutex_unlock(&mhi_chan->mutex);
}
if (mhi_cntrl->tsync_dev == mhi_dev)
mhi_cntrl->tsync_dev = NULL;
/* relinquish any pending votes for device */
while (atomic_read(&mhi_dev->dev_vote))
mhi_device_put(mhi_dev, MHI_VOTE_DEVICE);

39
drivers/bus/mhi/core/mhi_main.c
View file

@ -850,38 +850,6 @@ int mhi_create_timesync_sysfs(struct mhi_controller *mhi_cntrl)
&mhi_tsync_group);
}
static void mhi_create_time_sync_dev(struct mhi_controller *mhi_cntrl)
{
struct mhi_device *mhi_dev;
int ret;
if (!MHI_IN_MISSION_MODE(mhi_cntrl->ee))
return;
mhi_dev = mhi_alloc_device(mhi_cntrl);
if (!mhi_dev)
return;
mhi_dev->dev_type = MHI_TIMESYNC_TYPE;
mhi_dev->chan_name = "TIME_SYNC";
dev_set_name(&mhi_dev->dev, "%04x_%02u.%02u.%02u_%s", mhi_dev->dev_id,
mhi_dev->domain, mhi_dev->bus, mhi_dev->slot,
mhi_dev->chan_name);
/* add if there is a matching DT node */
mhi_assign_of_node(mhi_cntrl, mhi_dev);
ret = device_add(&mhi_dev->dev);
if (ret) {
MHI_ERR("Failed to register dev for chan:%s\n",
mhi_dev->chan_name);
mhi_dealloc_device(mhi_cntrl, mhi_dev);
return;
}
mhi_cntrl->tsync_dev = mhi_dev;
}
/* bind mhi channels into mhi devices */
void mhi_create_devices(struct mhi_controller *mhi_cntrl)
{
@ -890,13 +858,6 @@ void mhi_create_devices(struct mhi_controller *mhi_cntrl)
struct mhi_device *mhi_dev;
int ret;
/*
* we need to create time sync device before creating other
* devices, because client may try to capture time during
* clint probe.
*/
mhi_create_time_sync_dev(mhi_cntrl);
mhi_chan = mhi_cntrl->mhi_chan;
for (i = 0; i < mhi_cntrl->max_chan; i++, mhi_chan++) {
if (!mhi_chan->configured || mhi_chan->mhi_dev ||

1
include/linux/mhi.h
View file

@ -388,7 +388,6 @@ struct mhi_controller {
/* supports time sync feature */
struct mhi_timesync *mhi_tsync;
struct mhi_device *tsync_dev;
u64 local_timer_freq;
u64 remote_timer_freq;