media: iris: Add support for HFI_PROP_OPB_ENABLE to control split mode

Add handling for the HFI_PROP_OPB_ENABLE property, which allows enabling
or disabling split mode in the firmware. When HFI_PROP_OPB_ENABLE is set
to true, the firmware activates split mode for output picture buffers
(OPB). The OPB format is determined by the HFI_PROP_COLOR_FORMAT
property, supporting NV12 or QC08C formats.

Signed-off-by: Dikshita Agarwal <[e-mail]>
Reviewed-by: Vikash Garodia <[e-mail]>
Signed-off-by: Bryan O'Donoghue <[e-mail]>
Signed-off-by: Hans Verkuil <[e-mail]>

drivers/media/platform/qcom/iris/iris_hfi_gen2_command.c

···
 						  sizeof(u32));
 }
 
+static int iris_hfi_gen2_set_opb_enable(struct iris_inst *inst, u32 plane)
+{
+	u32 port = iris_hfi_gen2_get_port(inst, plane);
+	u32 opb_enable = iris_split_mode_enabled(inst);
+
+	return iris_hfi_gen2_session_set_property(inst,
+						  HFI_PROP_OPB_ENABLE,
+						  HFI_HOST_FLAGS_NONE,
+						  port,
+						  HFI_PAYLOAD_U32,
+						  &opb_enable,
+						  sizeof(u32));
+}
+
 static int iris_hfi_gen2_set_colorformat(struct iris_inst *inst, u32 plane)
 {
 	u32 port = iris_hfi_gen2_get_port(inst, plane);
···
 		{HFI_PROP_SIGNAL_COLOR_INFO,          iris_hfi_gen2_set_colorspace             },
 		{HFI_PROP_PROFILE,                    iris_hfi_gen2_set_profile                },
 		{HFI_PROP_LEVEL,                      iris_hfi_gen2_set_level                  },
+		{HFI_PROP_OPB_ENABLE,                 iris_hfi_gen2_set_opb_enable             },
 		{HFI_PROP_COLOR_FORMAT,               iris_hfi_gen2_set_colorformat            },
 		{HFI_PROP_LINEAR_STRIDE_SCANLINE,     iris_hfi_gen2_set_linear_stride_scanline },
 		{HFI_PROP_TIER,                       iris_hfi_gen2_set_tier                   },

drivers/media/platform/qcom/iris/iris_hfi_gen2_defines.h

···
 #define HFI_PROP_BUFFER_MARK			0x0300016c
 #define HFI_PROP_RAW_RESOLUTION		0x03000178
 #define HFI_PROP_TOTAL_PEAK_BITRATE		0x0300017C
+#define HFI_PROP_OPB_ENABLE			0x03000184
 #define HFI_PROP_COMV_BUFFER_COUNT		0x03000193
 #define HFI_PROP_END				0x03FFFFFF
 

drivers/media/platform/qcom/iris/iris_platform_gen2.c

···
 };
 
 static const u32 sm8550_vdec_output_config_params[] = {
+	HFI_PROP_OPB_ENABLE,
 	HFI_PROP_COLOR_FORMAT,
 	HFI_PROP_LINEAR_STRIDE_SCANLINE,
 };