diff options
| author | Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> | 2022-04-05 19:27:51 +0530 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-04-26 13:17:41 +0200 |
| commit | 03c0bb8ec983f993a704417d73cc0a3511453d3e (patch) | |
| tree | c6f2dbfced5cb8368d05289bf54c5652f25deb5a /include/linux/mhi_ep.h | |
| parent | 530125889977365cb6db32d7d0bd84c9f54c8aab (diff) | |
bus: mhi: ep: Add support for processing channel rings
Add support for processing the channel rings from host. For the channel
ring associated with DL channel, the xfer callback will simply invoked.
For the case of UL channel, the ring elements will be read in a buffer
till the write pointer and later passed to the client driver using the
xfer callback.
The client drivers should provide the callbacks for both UL and DL
channels during registration.
Reviewed-by: Alex Elder <elder@linaro.org>
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Link: https://lore.kernel.org/r/20220405135754.6622-16-manivannan.sadhasivam@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux/mhi_ep.h')
| -rw-r--r-- | include/linux/mhi_ep.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/mhi_ep.h b/include/linux/mhi_ep.h index fc7d197413eb..eecc8f35d630 100644 --- a/include/linux/mhi_ep.h +++ b/include/linux/mhi_ep.h @@ -78,6 +78,7 @@ struct mhi_ep_db_info { * @state_work: State transition worker * @reset_work: Worker for MHI Endpoint reset * @cmd_ring_work: Worker for processing command rings + * @ch_ring_work: Worker for processing channel rings * @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 @@ -126,6 +127,7 @@ struct mhi_ep_cntrl { struct work_struct state_work; struct work_struct reset_work; struct work_struct cmd_ring_work; + struct work_struct ch_ring_work; void (*raise_irq)(struct mhi_ep_cntrl *mhi_cntrl, u32 vector); int (*alloc_map)(struct mhi_ep_cntrl *mhi_cntrl, u64 pci_addr, phys_addr_t *phys_ptr, |