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Commit fb90eb61 authored by Xiaoyu Ye's avatar Xiaoyu Ye
Browse files

dsp: fix reset logic during ADSP SSR for lsm 



During ADSP SSR, unless all APR clients are de-registered, Glink
channel will not be closed, which will cause Glink channel to remain
in stale/unusable state after ADSP SSR. Fix this by adding APR reset
logic in LSM driver.

Change-Id: Idec26836cfa4ecbacc557996339facd84ac19668
Signed-off-by: default avatarXiaoyu Ye <benyxy@codeaurora.org>
parent 21d942b0

dsp/q6lsm.c

+13 −0
Original line number Diff line number Diff line
@@ -148,6 +148,10 @@ static int q6lsm_callback(struct apr_client_data *data, void *priv) 
			 __func__, data->opcode, data->reset_event,

			 data->reset_proc);



		apr_reset(client->apr);

		client->apr = NULL;

		atomic_set(&client->cmd_state, CMD_STATE_CLEARED);

		wake_up(&client->cmd_wait);

		cal_utils_clear_cal_block_q6maps(LSM_MAX_CAL_IDX,

			lsm_common.cal_data);

		mutex_lock(&lsm_common.cal_data[LSM_CUSTOM_TOP_IDX]->lock);
@@ -368,6 +372,11 @@ static int q6lsm_apr_send_pkt(struct lsm_client *client, void *handle, 
	unsigned long flags = 0;

	struct apr_hdr *msg_hdr = (struct apr_hdr *) data;



	if (!handle) {

		pr_err("%s: handle is NULL\n", __func__);

		return -EINVAL;

	}



	pr_debug("%s: enter wait %d\n", __func__, wait);

	if (wait)

		mutex_lock(&lsm_common.apr_lock);
@@ -1341,6 +1350,10 @@ static int q6lsm_mmapcallback(struct apr_client_data *data, void *priv) 
		pr_debug("%s: SSR event received 0x%x, event 0x%x,\n"

			 "proc 0x%x SID 0x%x\n", __func__, data->opcode,

			 data->reset_event, data->reset_proc, sid);



		apr_reset(lsm_common.apr);

		lsm_common.apr = NULL;

		atomic_set(&lsm_common.apr_users, 0);

		lsm_common.common_client[sid].lsm_cal_phy_addr = 0;

		cal_utils_clear_cal_block_q6maps(LSM_MAX_CAL_IDX,

			lsm_common.cal_data);