Commit 5a62e39b authored by Bhaumik Bhatt's avatar Bhaumik Bhatt Committed by Manivannan Sadhasivam
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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: default avatarBhaumik Bhatt <bbhatt@codeaurora.org>
Reviewed-by: default avatarHemant Kumar <hemantk@codeaurora.org>
Reviewed-by: default avatarManivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Link: https://lore.kernel.org/r/1617311778-1254-2-git-send-email-bbhatt@codeaurora.org


Signed-off-by: default avatarManivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
parent 49d38ebb

drivers/bus/mhi/core/main.c

+5 −0
Original line number Diff line number Diff line
@@ -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;