On Mon, Jun 29, 2020 at 09:39:39AM -0700, Bhaumik Bhatt wrote:
> Introduce a helper function to determine whether the device is in a
> powered ON state and resides in one of the active MHI states. This will
> allow for some use cases where access can be pre-determined.
>
> Signed-off-by: Bhaumik Bhatt <bbhatt@xxxxxxxxxxxxxx>
> Reviewed-by: Jeffrey Hugo <jhugo@xxxxxxxxxxxxxx>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@xxxxxxxxxx>
Thanks,
Mani
> ---
> drivers/bus/mhi/core/internal.h | 5 +++++
> 1 file changed, 5 insertions(+)
>
> diff --git a/drivers/bus/mhi/core/internal.h b/drivers/bus/mhi/core/internal.h
> index cb32eaf..997c6e9 100644
> --- a/drivers/bus/mhi/core/internal.h
> +++ b/drivers/bus/mhi/core/internal.h
> @@ -598,6 +598,11 @@ int mhi_queue_state_transition(struct mhi_controller *mhi_cntrl,
> int __mhi_device_get_sync(struct mhi_controller *mhi_cntrl);
> int mhi_send_cmd(struct mhi_controller *mhi_cntrl, struct mhi_chan *mhi_chan,
> enum mhi_cmd_type cmd);
> +static inline bool mhi_is_active(struct mhi_controller *mhi_cntrl)
> +{
> + return (mhi_cntrl->dev_state >= MHI_STATE_M0 &&
> + mhi_cntrl->dev_state <= MHI_STATE_M3_FAST);
> +}
>
> static inline void mhi_trigger_resume(struct mhi_controller *mhi_cntrl,
> bool hard_wakeup)
> --
> The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
> a Linux Foundation Collaborative Project
>
