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authorBhaumik Bhatt <bbhatt@codeaurora.org>2021-04-01 14:16:10 -0700
committerManivannan Sadhasivam <manivannan.sadhasivam@linaro.org>2021-04-07 12:25:42 +0530
commit5a62e39b45b585726e0dcbf383bfc70dc9f07637 (patch)
tree7ac7c698feb586154a0e0d1d1be937188fdb0faf /drivers/bus
parent49d38ebb6faad9e2abc7ce91b35956f19652b51f (diff)
bus: mhi: core: Allow sending the STOP channel command
Add support to allow sending the STOP channel command. If a client driver would like to STOP a channel and have the device retain the channel context instead of issuing a RESET to it and clearing the context, this would provide support for it after the ability to send this command is exposed to clients. Signed-off-by: Bhaumik Bhatt <bbhatt@codeaurora.org> Reviewed-by: Hemant Kumar <hemantk@codeaurora.org> Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Link: https://lore.kernel.org/r/1617311778-1254-2-git-send-email-bbhatt@codeaurora.org Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Diffstat (limited to 'drivers/bus')
-rw-r--r--drivers/bus/mhi/core/main.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/bus/mhi/core/main.c b/drivers/bus/mhi/core/main.c
index 7eed2741fcf9..4a7d3c7ec554 100644
--- a/drivers/bus/mhi/core/main.c
+++ b/drivers/bus/mhi/core/main.c
@@ -1216,6 +1216,11 @@ int mhi_send_cmd(struct mhi_controller *mhi_cntrl,
cmd_tre->dword[0] = MHI_TRE_CMD_RESET_DWORD0;
cmd_tre->dword[1] = MHI_TRE_CMD_RESET_DWORD1(chan);
break;
+ case MHI_CMD_STOP_CHAN:
+ cmd_tre->ptr = MHI_TRE_CMD_STOP_PTR;
+ cmd_tre->dword[0] = MHI_TRE_CMD_STOP_DWORD0;
+ cmd_tre->dword[1] = MHI_TRE_CMD_STOP_DWORD1(chan);
+ break;
case MHI_CMD_START_CHAN:
cmd_tre->ptr = MHI_TRE_CMD_START_PTR;
cmd_tre->dword[0] = MHI_TRE_CMD_START_DWORD0;