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bus: mhi: host: Remove unused functions

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mhi_device_get() and mhi_queue_dma() haven't been used since 2020's
commit 189ff97cca ("bus: mhi: core: Add support for data transfer")
added them.

Remove them.

Note that mhi_queue_dma_sync() is used and has been left.

Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Link: https://lore.kernel.org/r/20250127215859.261105-1-linux@treblig.org
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
This commit is contained in:
Dr. David Alan Gilbert 2025-01-27 21:58:59 +00:00 • committed by Manivannan Sadhasivam
parent 2014c95afe
commit c8006fbd0f
3 changed files with 0 additions and 51 deletions
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19
drivers/bus/mhi/host/main.c
View file

@ -1181,25 +1181,6 @@ int mhi_queue_skb(struct mhi_device *mhi_dev, enum dma_data_direction dir,
}
EXPORT_SYMBOL_GPL(mhi_queue_skb);
int mhi_queue_dma(struct mhi_device *mhi_dev, enum dma_data_direction dir,
struct mhi_buf *mhi_buf, size_t len, enum mhi_flags mflags)
{
struct mhi_chan *mhi_chan = (dir == DMA_TO_DEVICE) ? mhi_dev->ul_chan :
mhi_dev->dl_chan;
struct mhi_buf_info buf_info = { };
buf_info.p_addr = mhi_buf->dma_addr;
buf_info.cb_buf = mhi_buf;
buf_info.pre_mapped = true;
buf_info.len = len;
if (unlikely(mhi_chan->pre_alloc))
return -EINVAL;
return mhi_queue(mhi_dev, &buf_info, dir, mflags);
}
EXPORT_SYMBOL_GPL(mhi_queue_dma);
int mhi_gen_tre(struct mhi_controller *mhi_cntrl, struct mhi_chan *mhi_chan,
struct mhi_buf_info *info, enum mhi_flags flags)
{

14
drivers/bus/mhi/host/pm.c
View file

@ -1296,20 +1296,6 @@ int mhi_force_rddm_mode(struct mhi_controller *mhi_cntrl)
}
EXPORT_SYMBOL_GPL(mhi_force_rddm_mode);
void mhi_device_get(struct mhi_device *mhi_dev)
{
struct mhi_controller *mhi_cntrl = mhi_dev->mhi_cntrl;
mhi_dev->dev_wake++;
read_lock_bh(&mhi_cntrl->pm_lock);
if (MHI_PM_IN_SUSPEND_STATE(mhi_cntrl->pm_state))
mhi_trigger_resume(mhi_cntrl);
mhi_cntrl->wake_get(mhi_cntrl, true);
read_unlock_bh(&mhi_cntrl->pm_lock);
}
EXPORT_SYMBOL_GPL(mhi_device_get);
int mhi_device_get_sync(struct mhi_device *mhi_dev)
{
struct mhi_controller *mhi_cntrl = mhi_dev->mhi_cntrl;

18
include/linux/mhi.h
View file

@ -720,12 +720,6 @@ enum mhi_state mhi_get_mhi_state(struct mhi_controller *mhi_cntrl);
*/
void mhi_soc_reset(struct mhi_controller *mhi_cntrl);
/**
* mhi_device_get - Disable device low power mode
* @mhi_dev: Device associated with the channel
*/
void mhi_device_get(struct mhi_device *mhi_dev);
/**
* mhi_device_get_sync - Disable device low power mode. Synchronously
* take the controller out of suspended state
@ -776,18 +770,6 @@ int mhi_prepare_for_transfer_autoqueue(struct mhi_device *mhi_dev);
*/
void mhi_unprepare_from_transfer(struct mhi_device *mhi_dev);
/**
* mhi_queue_dma - Send or receive DMA mapped buffers from client device
* over MHI channel
* @mhi_dev: Device associated with the channels
* @dir: DMA direction for the channel
* @mhi_buf: Buffer for holding the DMA mapped data
* @len: Buffer length
* @mflags: MHI transfer flags used for the transfer
*/
int mhi_queue_dma(struct mhi_device *mhi_dev, enum dma_data_direction dir,
struct mhi_buf *mhi_buf, size_t len, enum mhi_flags mflags);
/**
* mhi_queue_buf - Send or receive raw buffers from client device over MHI
* channel