diff --git a/drivers/staging/media/atomisp/pci/runtime/debug/interface/ia_css_debug.h b/drivers/staging/media/atomisp/pci/runtime/debug/interface/ia_css_debug.h
index fff89e9b4b01..3a3d72c6eaaa 100644
--- a/drivers/staging/media/atomisp/pci/runtime/debug/interface/ia_css_debug.h
+++ b/drivers/staging/media/atomisp/pci/runtime/debug/interface/ia_css_debug.h
@@ -141,12 +141,6 @@ static inline void __printf(2, 0) ia_css_debug_vdtrace(unsigned int level,
 __printf(2, 3) void ia_css_debug_dtrace(unsigned int level,
 					const char *fmt, ...);
 
-/*! @brief Dump sp thread's stack contents
- * SP thread's stack contents are set to 0xcafecafe. This function dumps the
- * stack to inspect if the stack's boundaries are compromised.
- * @return	None
- */
-void ia_css_debug_dump_sp_stack_info(void);
 
 /*! @brief Function to set the global dtrace verbosity level.
  * @param[in]	trace_level	Maximum level of the messages to be traced.
diff --git a/drivers/staging/media/atomisp/pci/runtime/debug/src/ia_css_debug.c b/drivers/staging/media/atomisp/pci/runtime/debug/src/ia_css_debug.c
index bb6204cb42c5..bb30146c5fe7 100644
--- a/drivers/staging/media/atomisp/pci/runtime/debug/src/ia_css_debug.c
+++ b/drivers/staging/media/atomisp/pci/runtime/debug/src/ia_css_debug.c
@@ -105,7 +105,8 @@
  * TODO:SH_CSS_MAX_SP_THREADS is not the max number of sp threads
  * future rework should fix this and remove the define MAX_THREAD_NUM
  */
-#define MAX_THREAD_NUM (SH_CSS_MAX_SP_THREADS + SH_CSS_MAX_SP_INTERNAL_THREADS)
+#define MAX_THREAD_NUM_2400 (SH_CSS_MAX_SP_THREADS + SH_CSS_MAX_SP_INTERNAL_THREADS_2400)
+#define MAX_THREAD_NUM_2401 (SH_CSS_MAX_SP_THREADS + SH_CSS_MAX_SP_INTERNAL_THREADS_2401)
 
 static struct pipe_graph_class {
 	bool do_init;
@@ -147,79 +148,6 @@ void ia_css_debug_dtrace(unsigned int level, const char *fmt, ...)
 	va_end(ap);
 }
 
-static void debug_dump_long_array_formatted(
-    const sp_ID_t sp_id,
-    hrt_address stack_sp_addr,
-    unsigned int stack_size)
-{
-	unsigned int i;
-	u32 val;
-	u32 addr = (uint32_t)stack_sp_addr;
-	u32 stack_size_words = CEIL_DIV(stack_size, sizeof(uint32_t));
-
-	/* When size is not multiple of four, last word is only relevant for
-	 * remaining bytes */
-	for (i = 0; i < stack_size_words; i++) {
-		val = sp_dmem_load_uint32(sp_id, (hrt_address)addr);
-		if ((i % 8) == 0)
-			ia_css_debug_dtrace(IA_CSS_DEBUG_VERBOSE, "\n");
-
-		ia_css_debug_dtrace(IA_CSS_DEBUG_VERBOSE, "0x%08x ", val);
-		addr += sizeof(uint32_t);
-	}
-
-	ia_css_debug_dtrace(IA_CSS_DEBUG_VERBOSE, "\n");
-}
-
-static void debug_dump_sp_stack_info(
-    const sp_ID_t sp_id)
-{
-	const struct ia_css_fw_info *fw;
-	unsigned int HIVE_ADDR_sp_threads_stack;
-	unsigned int HIVE_ADDR_sp_threads_stack_size;
-	u32 stack_sizes[MAX_THREAD_NUM];
-	u32 stack_sp_addr[MAX_THREAD_NUM];
-	unsigned int i;
-
-	fw = &sh_css_sp_fw;
-
-	ia_css_debug_dtrace(IA_CSS_DEBUG_VERBOSE, "sp_id(%u) stack info\n", sp_id);
-	ia_css_debug_dtrace(IA_CSS_DEBUG_VERBOSE,
-			    "from objects stack_addr_offset:0x%x stack_size_offset:0x%x\n",
-			    fw->info.sp.threads_stack,
-			    fw->info.sp.threads_stack_size);
-
-	HIVE_ADDR_sp_threads_stack = fw->info.sp.threads_stack;
-	HIVE_ADDR_sp_threads_stack_size = fw->info.sp.threads_stack_size;
-
-	if (fw->info.sp.threads_stack == 0 ||
-	    fw->info.sp.threads_stack_size == 0)
-		return;
-
-	(void)HIVE_ADDR_sp_threads_stack;
-	(void)HIVE_ADDR_sp_threads_stack_size;
-
-	sp_dmem_load(sp_id,
-		     (unsigned int)sp_address_of(sp_threads_stack),
-		     &stack_sp_addr, sizeof(stack_sp_addr));
-	sp_dmem_load(sp_id,
-		     (unsigned int)sp_address_of(sp_threads_stack_size),
-		     &stack_sizes, sizeof(stack_sizes));
-
-	for (i = 0 ; i < MAX_THREAD_NUM; i++) {
-		ia_css_debug_dtrace(IA_CSS_DEBUG_VERBOSE,
-				    "thread: %u stack_addr: 0x%08x stack_size: %u\n",
-				    i, stack_sp_addr[i], stack_sizes[i]);
-		debug_dump_long_array_formatted(sp_id, (hrt_address)stack_sp_addr[i],
-						stack_sizes[i]);
-	}
-}
-
-void ia_css_debug_dump_sp_stack_info(void)
-{
-	debug_dump_sp_stack_info(SP0_ID);
-}
-
 void ia_css_debug_set_dtrace_level(const unsigned int trace_level)
 {
 	dbg_level = trace_level;
diff --git a/drivers/staging/media/atomisp/pci/sh_css_internal.h b/drivers/staging/media/atomisp/pci/sh_css_internal.h
index d98f1323441e..2fa0b3e45fe0 100644
--- a/drivers/staging/media/atomisp/pci/sh_css_internal.h
+++ b/drivers/staging/media/atomisp/pci/sh_css_internal.h
@@ -22,9 +22,7 @@
 #include <platform_support.h>
 #include <linux/stdarg.h>
 
-#if !defined(ISP2401)
 #include "input_formatter.h"
-#endif
 #include "input_system.h"
 
 #include "ia_css_types.h"
@@ -95,19 +93,20 @@
  *	 these threads can't be used as image pipe
  */
 
-#if !defined(ISP2401)
-#define SH_CSS_SP_INTERNAL_METADATA_THREAD	1
-#else
-#define SH_CSS_SP_INTERNAL_METADATA_THREAD	0
-#endif
+#define SH_CSS_SP_INTERNAL_METADATA_THREAD_2400	1
+#define SH_CSS_SP_INTERNAL_METADATA_THREAD_2401	0
 
 #define SH_CSS_SP_INTERNAL_SERVICE_THREAD		1
 
 #define SH_CSS_MAX_SP_THREADS		5
 
-#define SH_CSS_MAX_SP_INTERNAL_THREADS	(\
-	 SH_CSS_SP_INTERNAL_SERVICE_THREAD +\
-	 SH_CSS_SP_INTERNAL_METADATA_THREAD)
+#define SH_CSS_MAX_SP_INTERNAL_THREADS_2400	(\
+	SH_CSS_SP_INTERNAL_SERVICE_THREAD +\
+	 SH_CSS_SP_INTERNAL_METADATA_THREAD_2400)
+
+#define SH_CSS_MAX_SP_INTERNAL_THREADS_2401	(\
+	SH_CSS_SP_INTERNAL_SERVICE_THREAD +\
+	 SH_CSS_SP_INTERNAL_METADATA_THREAD_2401)
 
 #define SH_CSS_MAX_PIPELINES	SH_CSS_MAX_SP_THREADS
 
@@ -357,14 +356,12 @@ struct sh_css_sp_debug_command {
 	u32 dma_sw_reg;
 };
 
-#if !defined(ISP2401)
 /* SP input formatter configuration.*/
 struct sh_css_sp_input_formatter_set {
 	u32				stream_format;
 	input_formatter_cfg_t	config_a;
 	input_formatter_cfg_t	config_b;
 };
-#endif
 
 #define IA_CSS_MIPI_SIZE_CHECK_MAX_NOF_ENTRIES_PER_PORT (3)
 
@@ -377,7 +374,7 @@ struct sh_css_sp_config {
 	     frames are locked when their EOF event is successfully sent to the
 	     host (true) or when they are passed to the preview/video pipe
 	     (false). */
-#if !defined(ISP2401)
+
 	struct {
 		u8					a_changed;
 		u8					b_changed;
@@ -385,15 +382,13 @@ struct sh_css_sp_config {
 		struct sh_css_sp_input_formatter_set
 			set[SH_CSS_MAX_IF_CONFIGS]; /* CSI-2 port is used as index. */
 	} input_formatter;
-#endif
-#if !defined(ISP2401)
+
 	sync_generator_cfg_t	sync_gen;
 	tpg_cfg_t		tpg;
 	prbs_cfg_t		prbs;
 	input_system_cfg_t	input_circuit;
 	u8			input_circuit_cfg_changed;
 	u32		mipi_sizes_for_check[N_CSI_PORTS][IA_CSS_MIPI_SIZE_CHECK_MAX_NOF_ENTRIES_PER_PORT];
-#endif
 	u8                 enable_isys_event_queue;
 	u8			disable_cont_vf;
 };
@@ -409,7 +404,6 @@ enum sh_css_stage_type {
 #define SH_CSS_PIPE_CONFIG_SAMPLE_PARAMS_MASK \
 	((SH_CSS_PIPE_CONFIG_SAMPLE_PARAMS << SH_CSS_MAX_SP_THREADS) - 1)
 
-#if defined(ISP2401)
 struct sh_css_sp_pipeline_terminal {
 	union {
 		/* Input System 2401 */
@@ -442,7 +436,6 @@ struct sh_css_sp_pipeline_io_status {
 	u32	running[N_INPUT_SYSTEM_CSI_PORT];	/** configured streams */
 };
 
-#endif
 enum sh_css_port_dir {
 	SH_CSS_PORT_INPUT  = 0,
 	SH_CSS_PORT_OUTPUT  = 1
@@ -641,10 +634,8 @@ struct sh_css_sp_stage {
 struct sh_css_sp_group {
 	struct sh_css_sp_config		config;
 	struct sh_css_sp_pipeline	pipe[SH_CSS_MAX_SP_THREADS];
-#if defined(ISP2401)
 	struct sh_css_sp_pipeline_io	pipe_io[SH_CSS_MAX_SP_THREADS];
 	struct sh_css_sp_pipeline_io_status	pipe_io_status;
-#endif
 	struct sh_css_sp_debug_command	debug;
 };
 
@@ -922,13 +913,11 @@ sh_css_frame_info_set_width(struct ia_css_frame_info *info,
 			    unsigned int width,
 			    unsigned int aligned);
 
-#if !defined(ISP2401)
 
 unsigned int
 sh_css_get_mipi_sizes_for_check(const unsigned int port,
 				const unsigned int idx);
 
-#endif
 
 ia_css_ptr
 sh_css_store_sp_group_to_ddr(void);
@@ -971,11 +960,9 @@ sh_css_continuous_is_enabled(uint8_t pipe_num);
 struct ia_css_pipe *
 find_pipe_by_num(uint32_t pipe_num);
 
-#ifdef ISP2401
 void
 ia_css_get_crop_offsets(
     struct ia_css_pipe *pipe,
     struct ia_css_frame_info *in_frame);
-#endif
 
 #endif /* _SH_CSS_INTERNAL_H_ */
