| Message ID | 1610139297-36435-2-git-send-email-bbhatt@codeaurora.org (mailing list archive) |
|---|---|
| State | Superseded |
| Headers | show |
| Series | Updates to MHI channel handling | expand |
On Fri, Jan 08, 2021 at 12:54:49PM -0800, Bhaumik Bhatt wrote: > 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> Thanks, Mani > --- > drivers/bus/mhi/core/main.c | 5 +++++ > 1 file changed, 5 insertions(+) > > diff --git a/drivers/bus/mhi/core/main.c b/drivers/bus/mhi/core/main.c > index 8576b0f..c22d7df 100644 > --- a/drivers/bus/mhi/core/main.c > +++ b/drivers/bus/mhi/core/main.c > @@ -1224,6 +1224,11 @@ 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; > -- > The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, > a Linux Foundation Collaborative Project >
diff --git a/drivers/bus/mhi/core/main.c b/drivers/bus/mhi/core/main.c index 8576b0f..c22d7df 100644 --- a/drivers/bus/mhi/core/main.c +++ b/drivers/bus/mhi/core/main.c @@ -1224,6 +1224,11 @@ 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;