diff options
Diffstat (limited to 'chip/ish/ipc_heci.c')
| -rw-r--r-- | chip/ish/ipc_heci.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/chip/ish/ipc_heci.c b/chip/ish/ipc_heci.c index e336994936..9574f38799 100644 --- a/chip/ish/ipc_heci.c +++ b/chip/ish/ipc_heci.c @@ -468,6 +468,20 @@ static void ipc_host2ish_isr(void) uint32_t pisr = REG32(IPC_PISR); uint32_t pimr = REG32(IPC_PIMR); +#ifdef CHIP_FAMILY_ISH5 + /* + * TODO(b/122364080): Remove this code once proper power management is + * in place for ISH. + * + * Ensure that the host IPC power is requested after getting an + * interrupt otherwise the resume message will never get delivered (via + * host ipc communication). Resume is where we would like to restore all + * power settings, but that is too late for this power request. + */ + + PMU_VNN_REQ = VNN_REQ_IPC_HOST_WRITE & ~PMU_VNN_REQ; +#endif + if ((pisr & IPC_PISR_HOST2ISH_BIT) && (pimr & IPC_PIMR_HOST2ISH_BIT)) handle_msg_recv_interrupt(IPC_PEER_ID_HOST); } @@ -696,6 +710,17 @@ void ipc_mng_task(void) struct ipc_msg msg; ipc_handle_t handle; +#ifdef CHIP_FAMILY_ISH5 + /* + * TODO(b/122364080): Remove this code once proper power management is + * in place for ISH. + * + * Ensure that power for host IPCs is requested and ack'ed + */ + PMU_VNN_REQ = VNN_REQ_IPC_HOST_WRITE & ~PMU_VNN_REQ; + while (!(PMU_VNN_REQ_ACK & PMU_VNN_REQ_ACK_STATUS)) + continue; +#endif handle = ipc_open(IPC_PEER_ID_HOST, IPC_PROTOCOL_MNG, EVENT_FLAG_BIT_MNG_MSG); |