video: driver: add decoder input streamon support

Add decoder input streamon functionality which
include internal buffers support as well.

Change-Id: Ifb5afa51a29270705863c273d1ae08310666895d
Signed-off-by: Maheshwar Ajja <majja@codeaurora.org>

driver/variant/iris2/inc/msm_vidc_buffer_iris2.h

@@ -0,0 +1,20 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (c) 2020, The Linux Foundation. All rights reserved.
+ */
+
+#ifndef __H_MSM_VIDC_BUFFER_IRIS2_H__
+#define __H_MSM_VIDC_BUFFER_IRIS2_H__
+
+#include "msm_vidc_inst.h"
+
+u32 msm_vidc_decoder_scratch_size_iris2(struct msm_vidc_inst *inst);
+u32 msm_vidc_decoder_scratch_1_size_iris2(struct msm_vidc_inst *inst);
+u32 msm_vidc_decoder_persist_1_size_iris2(struct msm_vidc_inst *inst);
+
+u32 msm_vidc_encoder_scratch_size_iris2(struct msm_vidc_inst *inst);
+u32 msm_vidc_encoder_scratch_1_size_iris2(struct msm_vidc_inst *inst);
+u32 msm_vidc_encoder_scratch_2_size_iris2(struct msm_vidc_inst *inst);
+u32 msm_vidc_encoder_persist_size_iris2(struct msm_vidc_inst *inst);
+
+#endif // __H_MSM_VIDC_BUFFER_IRIS2_H__