From 5a62e39b45b585726e0dcbf383bfc70dc9f07637 Mon Sep 17 00:00:00 2001 From: Bhaumik Bhatt Date: Thu, 1 Apr 2021 14:16:10 -0700 Subject: 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 Reviewed-by: Hemant Kumar Reviewed-by: Manivannan Sadhasivam Link: https://lore.kernel.org/r/1617311778-1254-2-git-send-email-bbhatt@codeaurora.org Signed-off-by: Manivannan Sadhasivam --- drivers/bus/mhi/core/main.c | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'drivers/bus') 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; -- cgit v1.2.3