diff options
Diffstat (limited to 'drivers/net/wwan/iosm/iosm_ipc_trace.c')
| -rw-r--r-- | drivers/net/wwan/iosm/iosm_ipc_trace.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/net/wwan/iosm/iosm_ipc_trace.c b/drivers/net/wwan/iosm/iosm_ipc_trace.c index eeecfa3d10c5..4368373797b6 100644 --- a/drivers/net/wwan/iosm/iosm_ipc_trace.c +++ b/drivers/net/wwan/iosm/iosm_ipc_trace.c @@ -3,7 +3,9 @@ * Copyright (C) 2020-2021 Intel Corporation. */ +#include <linux/pm_runtime.h> #include <linux/wwan.h> + #include "iosm_ipc_trace.h" /* sub buffer size and number of sub buffer */ @@ -97,6 +99,8 @@ static ssize_t ipc_trace_ctrl_file_write(struct file *filp, if (ret) return ret; + pm_runtime_get_sync(ipc_trace->ipc_imem->dev); + mutex_lock(&ipc_trace->trc_mutex); if (val == TRACE_ENABLE && ipc_trace->mode != TRACE_ENABLE) { ipc_trace->channel = ipc_imem_sys_port_open(ipc_trace->ipc_imem, @@ -117,6 +121,10 @@ static ssize_t ipc_trace_ctrl_file_write(struct file *filp, ret = count; unlock: mutex_unlock(&ipc_trace->trc_mutex); + + pm_runtime_mark_last_busy(ipc_trace->ipc_imem->dev); + pm_runtime_put_autosuspend(ipc_trace->ipc_imem->dev); + return ret; } |