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path: root/drivers/hwtracing/intel_th/intel_th.h
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Diffstat (limited to 'drivers/hwtracing/intel_th/intel_th.h')
-rw-r--r--drivers/hwtracing/intel_th/intel_th.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/hwtracing/intel_th/intel_th.h b/drivers/hwtracing/intel_th/intel_th.h
index 8b986ba160e4..74a6a4071e7f 100644
--- a/drivers/hwtracing/intel_th/intel_th.h
+++ b/drivers/hwtracing/intel_th/intel_th.h
@@ -20,6 +20,8 @@ enum {
INTEL_TH_SWITCH,
};
+struct intel_th_device;
+
/**
* struct intel_th_output - descriptor INTEL_TH_OUTPUT type devices
* @port: output port number, assigned by the switch
@@ -27,6 +29,7 @@ enum {
* @scratchpad: scratchpad bits to flag when this output is enabled
* @multiblock: true for multiblock output configuration
* @active: true when this output is enabled
+ * @wait_empty: wait for device pipeline to be empty
*
* Output port descriptor, used by switch driver to tell which output
* port this output device corresponds to. Filled in at output device's
@@ -165,6 +168,7 @@ struct intel_th_driver {
struct intel_th_output *output);
/* output ops */
irqreturn_t (*irq)(struct intel_th_device *thdev);
+ void (*wait_empty)(struct intel_th_device *thdev);
int (*activate)(struct intel_th_device *thdev);
void (*deactivate)(struct intel_th_device *thdev);
/* file_operations for those who want a device node */