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soc: swr-mstr: Avoid master reinit during clock stop-resume

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Avoid reinitializing master when resuming from clock stop
to avoid possible slave sync lost.

Change-Id: I8b2403bf10c0ec2ab7b294d64441b4d9a8afcaa0
Signed-off-by: Ramprasad Katkam <katkam@codeaurora.org>
This commit is contained in:
Ramprasad Katkam 2018-10-01 20:12:46 +05:30
parent 662dec1e1e
commit 48b49b2117
1 changed files with 4 additions and 8 deletions
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12
soc/swr-mstr-ctrl.c
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@ -1235,7 +1235,7 @@ static irqreturn_t swr_mstr_interrupt(int irq, void *dev)
if (ret) {
dev_err(swrm->dev, "no slave alert found.\
spurious interrupt\n");
return ret;
break;
}
list_for_each_entry(swr_dev, &mstr->devices, dev_list) {
if (swr_dev->dev_num != devnum)
@ -1348,10 +1348,6 @@ static void swrm_wakeup_work(struct work_struct *work)
return;
}
pm_runtime_get_sync(swrm->dev);
swrm_cmd_fifo_wr_cmd(swrm, 0x4, 0xF, 0xF,
SWRS_SCP_INT_STATUS_MASK_1);
pm_runtime_mark_last_busy(swrm->dev);
pm_runtime_put_autosuspend(swrm->dev);
}
@ -1871,14 +1867,14 @@ static int swrm_runtime_resume(struct device *dev)
goto exit;
}
}
swr_master_write(swrm, SWRM_COMP_SW_RESET, 0x01);
swr_master_write(swrm, SWRM_COMP_SW_RESET, 0x01);
swrm_master_init(swrm);
} else {
/*wake up from clock stop*/
swr_master_write(swrm, SWRM_MCP_BUS_CTRL_ADDR, 0x2);
usleep_range(100, 105);
}
swr_master_write(swrm, SWRM_COMP_SW_RESET, 0x01);
swr_master_write(swrm, SWRM_COMP_SW_RESET, 0x01);
swrm_master_init(swrm);
}
exit:
pm_runtime_set_autosuspend_delay(&pdev->dev, auto_suspend_timer);