On Wed, Nov 11, 2020 at 11:21:08AM -0800, Bhaumik Bhatt wrote: > Add support to receive the response to a STOP channel command to the > MHI bus. If a client would like to STOP a channel instead of issuing > a RESET to it, this would provide support for it. > > Signed-off-by: Bhaumik Bhatt <bbhatt@xxxxxxxxxxxxxx> > --- > drivers/bus/mhi/core/init.c | 5 +++-- > drivers/bus/mhi/core/main.c | 5 +++++ > 2 files changed, 8 insertions(+), 2 deletions(-) > > diff --git a/drivers/bus/mhi/core/init.c b/drivers/bus/mhi/core/init.c > index 8cefa35..4d34d62 100644 > --- a/drivers/bus/mhi/core/init.c > +++ b/drivers/bus/mhi/core/init.c > @@ -1267,8 +1267,9 @@ static int mhi_driver_remove(struct device *dev) > > mutex_lock(&mhi_chan->mutex); > > - if (ch_state[dir] == MHI_CH_STATE_ENABLED && > - !mhi_chan->offload_ch) > + if ((ch_state[dir] == MHI_CH_STATE_ENABLED || > + ch_state[dir] == MHI_CH_STATE_STOP) && This enum is not defined in this patch so it'll break. Please add a separate patch which introduces the new state enums alone and then have patches 1/2 as a followup. Also this change is not belonging to this commit I believe. Thanks, Mani > + !mhi_chan->offload_ch) > mhi_deinit_chan_ctxt(mhi_cntrl, mhi_chan); > > mhi_chan->ch_state = MHI_CH_STATE_DISABLED; > diff --git a/drivers/bus/mhi/core/main.c b/drivers/bus/mhi/core/main.c > index f953e2a..ad881a1 100644 > --- a/drivers/bus/mhi/core/main.c > +++ b/drivers/bus/mhi/core/main.c > @@ -1194,6 +1194,11 @@ 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 >
