media: atomisp: remove polling_mode and subscr_index

This patch removes polling_mode and subscr_index from
`struct virtual_input_system_stream_s` as well as its usage [1]. Note
that for subscr_index, only the definition were removed because it was
not used anywhere.

[1] added on updating css version to irci_master_20150701_0213
    https://raw.githubusercontent.com/intel/ProductionKernelQuilts/cht-m1stable-2016_ww31/uefi/cht-m1stable/patches/cam-0439-atomisp2-css2401-and-2401_legacy-irci_master_2015070.patch
    ("atomisp2: css2401 and 2401_legacy-irci_master_20150701_0213")
Signed-off-by: Tsuchiya Yuto <kitakar@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

drivers/staging/media/atomisp/pci/isp2401_input_system_global.h

@@ -44,11 +44,6 @@ typedef enum {
 	N_INPUT_SYSTEM_SOURCE_TYPE
 } input_system_source_type_t;
 
-typedef enum {
-	INPUT_SYSTEM_POLL_ON_WAIT_FOR_FRAME,
-	INPUT_SYSTEM_POLL_ON_CAPTURE_REQUEST,
-} input_system_polling_mode_t;
-
 typedef struct input_system_channel_s input_system_channel_t;
 struct input_system_channel_s {
 	stream2mmio_ID_t	stream2mmio_id;
@@ -111,9 +106,6 @@ struct isp2401_input_system_cfg_s {
 
 	input_system_source_type_t	mode;
 
-	/* ISP2401 */
-	input_system_polling_mode_t	polling_mode;
-
 	bool online;
 	bool raw_packed;
 	s8 linked_isys_stream_id;
@@ -165,10 +157,6 @@ struct virtual_input_system_stream_s {
 	u8 online;
 	s8 linked_isys_stream_id;
 	u8 valid;
-
-	/* ISP2401 */
-	input_system_polling_mode_t	polling_mode;
-	s32 subscr_index;
 };
 
 typedef struct virtual_input_system_stream_cfg_s

drivers/staging/media/atomisp/pci/runtime/isys/src/virtual_isys.c

@@ -189,17 +189,6 @@ ia_css_isys_error_t ia_css_isys_stream_create(
 		return false;
 	}
 
-#ifdef ISP2401
-	/*
-	 * Early polling is required for timestamp accuracy in certain cause.
-	 * The ISYS HW polling is started on
-	 * ia_css_isys_stream_capture_indication() instead of
-	 * ia_css_pipeline_sp_wait_for_isys_stream_N() as isp processing of
-	 * capture takes longer than getting an ISYS frame
-	 */
-	isys_stream->polling_mode = isys_stream_descr->polling_mode;
-
-#endif
 	/* create metadata channel */
 	if (isys_stream_descr->metadata.enable) {
 		rc = create_input_system_channel(isys_stream_descr, true,

drivers/staging/media/atomisp/pci/sh_css.c

@@ -1000,20 +1000,10 @@ static bool sh_css_translate_stream_cfg_to_isys_stream_descr(
 	isys_stream_descr->raw_packed = stream_cfg->pack_raw_pixels;
 	isys_stream_descr->linked_isys_stream_id = (int8_t)
 		stream_cfg->isys_config[isys_stream_idx].linked_isys_stream_id;
-	/*
-	 * Early polling is required for timestamp accuracy in certain case.
-	 * The ISYS HW polling is started on
-	 * ia_css_isys_stream_capture_indication() instead of
-	 * ia_css_pipeline_sp_wait_for_isys_stream_N() as isp processing of
-	 * capture takes longer than getting an ISYS frame
-	 */
-	if (IS_ISP2401) {
-		isys_stream_descr->polling_mode
-		    = early_polling ? INPUT_SYSTEM_POLL_ON_CAPTURE_REQUEST
-		      : INPUT_SYSTEM_POLL_ON_WAIT_FOR_FRAME;
+
+	if (IS_ISP2401)
 		ia_css_debug_dtrace(IA_CSS_DEBUG_TRACE_PRIVATE,
 				    "sh_css_translate_stream_cfg_to_isys_stream_descr() leave:\n");
-	}
 
 	return rc;
 }