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bus: mhi: ep: Rename read_from_host() and write_to_host() APIs

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In the preparation for adding async API support, let's rename the existing
APIs to read_sync() and write_sync() to make it explicit that these APIs
are used for synchronous read/write.

Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
This commit is contained in:
Manivannan Sadhasivam 2023-11-27 13:57:37 +05:30
parent b08ded2ef2
commit 927105244f
4 changed files with 14 additions and 14 deletions
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4
drivers/bus/mhi/ep/main.c
View File

@ -377,7 +377,7 @@ static int mhi_ep_read_channel(struct mhi_ep_cntrl *mhi_cntrl,
buf_info.size = tr_len;
dev_dbg(dev, "Reading %zd bytes from channel (%u)\n", tr_len, ring->ch_id);
ret = mhi_cntrl->read_from_host(mhi_cntrl, &buf_info);
ret = mhi_cntrl->read_sync(mhi_cntrl, &buf_info);
if (ret < 0) {
dev_err(&mhi_chan->mhi_dev->dev, "Error reading from channel\n");
return ret;
@ -539,7 +539,7 @@ int mhi_ep_queue_skb(struct mhi_ep_device *mhi_dev, struct sk_buff *skb)
buf_info.size = tr_len;
dev_dbg(dev, "Writing %zd bytes to channel (%u)\n", tr_len, ring->ch_id);
ret = mhi_cntrl->write_to_host(mhi_cntrl, &buf_info);
ret = mhi_cntrl->write_sync(mhi_cntrl, &buf_info);
if (ret < 0) {
dev_err(dev, "Error writing to the channel\n");
goto err_exit;

8
drivers/bus/mhi/ep/ring.c
View File

@ -48,7 +48,7 @@ static int __mhi_ep_cache_ring(struct mhi_ep_ring *ring, size_t end)
buf_info.host_addr = ring->rbase + (start * sizeof(struct mhi_ring_element));
buf_info.dev_addr = &ring->ring_cache[start];
ret = mhi_cntrl->read_from_host(mhi_cntrl, &buf_info);
ret = mhi_cntrl->read_sync(mhi_cntrl, &buf_info);
if (ret < 0)
return ret;
} else {
@ -56,7 +56,7 @@ static int __mhi_ep_cache_ring(struct mhi_ep_ring *ring, size_t end)
buf_info.host_addr = ring->rbase + (start * sizeof(struct mhi_ring_element));
buf_info.dev_addr = &ring->ring_cache[start];
ret = mhi_cntrl->read_from_host(mhi_cntrl, &buf_info);
ret = mhi_cntrl->read_sync(mhi_cntrl, &buf_info);
if (ret < 0)
return ret;
@ -65,7 +65,7 @@ static int __mhi_ep_cache_ring(struct mhi_ep_ring *ring, size_t end)
buf_info.dev_addr = &ring->ring_cache[0];
buf_info.size = end * sizeof(struct mhi_ring_element);
ret = mhi_cntrl->read_from_host(mhi_cntrl, &buf_info);
ret = mhi_cntrl->read_sync(mhi_cntrl, &buf_info);
if (ret < 0)
return ret;
}
@ -143,7 +143,7 @@ int mhi_ep_ring_add_element(struct mhi_ep_ring *ring, struct mhi_ring_element *e
buf_info.dev_addr = el;
buf_info.size = sizeof(*el);
return mhi_cntrl->write_to_host(mhi_cntrl, &buf_info);
return mhi_cntrl->write_sync(mhi_cntrl, &buf_info);
}
void mhi_ep_ring_init(struct mhi_ep_ring *ring, enum mhi_ep_ring_type type, u32 id)

8
drivers/pci/endpoint/functions/pci-epf-mhi.c
View File

@ -536,11 +536,11 @@ static int pci_epf_mhi_link_up(struct pci_epf *epf)
mhi_cntrl->alloc_map = pci_epf_mhi_alloc_map;
mhi_cntrl->unmap_free = pci_epf_mhi_unmap_free;
if (info->flags & MHI_EPF_USE_DMA) {
mhi_cntrl->read_from_host = pci_epf_mhi_edma_read;
mhi_cntrl->write_to_host = pci_epf_mhi_edma_write;
mhi_cntrl->read_sync = pci_epf_mhi_edma_read;
mhi_cntrl->write_sync = pci_epf_mhi_edma_write;
} else {
mhi_cntrl->read_from_host = pci_epf_mhi_iatu_read;
mhi_cntrl->write_to_host = pci_epf_mhi_iatu_write;
mhi_cntrl->read_sync = pci_epf_mhi_iatu_read;
mhi_cntrl->write_sync = pci_epf_mhi_iatu_write;
}
/* Register the MHI EP controller */

8
include/linux/mhi_ep.h
View File

@ -94,8 +94,8 @@ struct mhi_ep_buf_info {
* @raise_irq: CB function for raising IRQ to the host
* @alloc_map: CB function for allocating memory in endpoint for storing host context and mapping it
* @unmap_free: CB function to unmap and free the allocated memory in endpoint for storing host context
* @read_from_host: CB function for reading from host memory from endpoint
* @write_to_host: CB function for writing to host memory from endpoint
* @read_sync: CB function for reading from host memory synchronously
* @write_sync: CB function for writing to host memory synchronously
* @mhi_state: MHI Endpoint state
* @max_chan: Maximum channels supported by the endpoint controller
* @mru: MRU (Maximum Receive Unit) value of the endpoint controller
@ -149,8 +149,8 @@ struct mhi_ep_cntrl {
void __iomem **virt, size_t size);
void (*unmap_free)(struct mhi_ep_cntrl *mhi_cntrl, u64 pci_addr, phys_addr_t phys,
void __iomem *virt, size_t size);
int (*read_from_host)(struct mhi_ep_cntrl *mhi_cntrl, struct mhi_ep_buf_info *buf_info);
int (*write_to_host)(struct mhi_ep_cntrl *mhi_cntrl, struct mhi_ep_buf_info *buf_info);
int (*read_sync)(struct mhi_ep_cntrl *mhi_cntrl, struct mhi_ep_buf_info *buf_info);
int (*write_sync)(struct mhi_ep_cntrl *mhi_cntrl, struct mhi_ep_buf_info *buf_info);
enum mhi_state mhi_state;