On 4/23/2024 4:33 AM, Qiang Yu wrote:
Some controllers may want to know the address of a certain doorbell. Hence
add a new API where we read CHDBOFF register to get the base address of
doorbell, so that the controller can calculate the address of the doorbell
it wants by adding additional offset.
Signed-off-by: Qiang Yu <quic_qianyu@xxxxxxxxxxx>
diff --git a/include/linux/mhi.h b/include/linux/mhi.h
index d968e1a..cb3b676 100644
--- a/include/linux/mhi.h
+++ b/include/linux/mhi.h
@@ -816,4 +816,10 @@ int mhi_queue_skb(struct mhi_device *mhi_dev, enum dma_data_direction dir,
*/
bool mhi_queue_is_full(struct mhi_device *mhi_dev, enum dma_data_direction dir);
+/**
+ * mhi_get_channel_doorbell_offset - Get the channel doorbell offset
+ * @mhi_cntrl: MHI controller
+ * @chdb_offset: Channel doorbell offset
+ */
+int mhi_get_channel_doorbell_offset(struct mhi_controller *mhi_cntrl, u32 *chdb_offset);
Should have a blank line here before the #endif just like how the file
was before this change
#endif /* _MHI_H_ */
With the above
Reviewed-by: Jeffrey Hugo <quic_jhugo@xxxxxxxxxxx>
