media: atomisp: sh_css_mipi: Remove #ifdef ISP2401

The actions of ISP2401 and 2400 are determined at the runtime.

Link: https://lore.kernel.org/r/20230508062632.34537-5-hpa@redhat.comSigned-off-by: Kate Hsuan <hpa@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>

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

@@ -67,13 +67,12 @@ ia_css_mipi_frame_calculate_size(const unsigned int width,
 	unsigned int mem_words = 0;
 	unsigned int width_padded = width;
 
-#if defined(ISP2401)
 	/* The changes will be reverted as soon as RAW
 	 * Buffers are deployed by the 2401 Input System
 	 * in the non-continuous use scenario.
 	 */
-	width_padded += (2 * ISP_VEC_NELEMS);
-#endif
+	if (IS_ISP2401)
+		width_padded += (2 * ISP_VEC_NELEMS);
 
 	IA_CSS_ENTER("padded_width=%d, height=%d, format=%d, hasSOLandEOL=%d, embedded_data_size_words=%d\n",
 		     width_padded, height, format, hasSOLandEOL, embedded_data_size_words);
@@ -235,7 +234,6 @@ bool mipi_is_free(void)
 	return true;
 }
 
-#if defined(ISP2401)
 /*
  * @brief Calculate the required MIPI buffer sizes.
  * Based on the stream configuration, calculate the
@@ -342,7 +340,6 @@ static int calculate_mipi_buff_size(struct ia_css_stream_config *stream_cfg,
 	IA_CSS_LEAVE_ERR(err);
 	return err;
 }
-#endif
 
 int
 allocate_mipi_frames(struct ia_css_pipe *pipe,
@@ -363,15 +360,13 @@ allocate_mipi_frames(struct ia_css_pipe *pipe,
 		return -EINVAL;
 	}
 
-#ifdef ISP2401
-	if (pipe->stream->config.online) {
+	if (IS_ISP2401 && pipe->stream->config.online) {
 		ia_css_debug_dtrace(IA_CSS_DEBUG_TRACE_PRIVATE,
 				    "allocate_mipi_frames(%p) exit: no buffers needed for 2401 pipe mode.\n",
 				    pipe);
 		return 0;
 	}
 
-#endif
 	if (pipe->stream->config.mode != IA_CSS_INPUT_MODE_BUFFERED_SENSOR) {
 		ia_css_debug_dtrace(IA_CSS_DEBUG_TRACE_PRIVATE,
 				    "allocate_mipi_frames(%p) exit: no buffers needed for pipe mode.\n",
@@ -386,9 +381,10 @@ allocate_mipi_frames(struct ia_css_pipe *pipe,
 		return -EINVAL;
 	}
 
-#ifdef ISP2401
-	err = calculate_mipi_buff_size(&pipe->stream->config,
-				       &my_css.mipi_frame_size[port]);
+	if (IS_ISP2401)
+		err = calculate_mipi_buff_size(&pipe->stream->config,
+					       &my_css.mipi_frame_size[port]);
+
 	/*
 	 * 2401 system allows multiple streams to use same physical port. This is not
 	 * true for 2400 system. Currently 2401 uses MIPI buffers as a temporary solution.
@@ -396,20 +392,14 @@ allocate_mipi_frames(struct ia_css_pipe *pipe,
 	 * In that case only 2400 related code should remain.
 	 */
 	if (ref_count_mipi_allocation[port] != 0) {
-		ref_count_mipi_allocation[port]++;
+		if (IS_ISP2401)
+			ref_count_mipi_allocation[port]++;
+
 		ia_css_debug_dtrace(IA_CSS_DEBUG_TRACE_PRIVATE,
 				    "allocate_mipi_frames(%p) leave: nothing to do, already allocated for this port (port=%d).\n",
 				    pipe, port);
 		return 0;
 	}
-#else
-	if (ref_count_mipi_allocation[port] != 0) {
-		ia_css_debug_dtrace(IA_CSS_DEBUG_TRACE_PRIVATE,
-				    "allocate_mipi_frames(%p) exit: already allocated for this port (port=%d).\n",
-				    pipe, port);
-		return 0;
-	}
-#endif
 
 	ref_count_mipi_allocation[port]++;
 
@@ -503,14 +493,14 @@ free_mipi_frames(struct ia_css_pipe *pipe)
 		}
 
 		if (ref_count_mipi_allocation[port] > 0) {
-#if !defined(ISP2401)
-			assert(ref_count_mipi_allocation[port] == 1);
-			if (ref_count_mipi_allocation[port] != 1) {
-				IA_CSS_ERROR("free_mipi_frames(%p) exit: wrong ref_count (ref_count=%d).",
-					     pipe, ref_count_mipi_allocation[port]);
-				return err;
+			if (!IS_ISP2401) {
+				assert(ref_count_mipi_allocation[port] == 1);
+				if (ref_count_mipi_allocation[port] != 1) {
+					IA_CSS_ERROR("free_mipi_frames(%p) exit: wrong ref_count (ref_count=%d).",
+						     pipe, ref_count_mipi_allocation[port]);
+					return err;
+				}
 			}
-#endif
 
 			ref_count_mipi_allocation[port]--;
 
@@ -534,18 +524,6 @@ free_mipi_frames(struct ia_css_pipe *pipe)
 				ia_css_debug_dtrace(IA_CSS_DEBUG_TRACE_PRIVATE,
 						    "free_mipi_frames(%p) exit (deallocated).\n", pipe);
 			}
-#if defined(ISP2401)
-			else {
-				/* 2401 system allows multiple streams to use same physical port. This is not
-				 * true for 2400 system. Currently 2401 uses MIPI buffers as a temporary solution.
-				 * TODO AM: Once that is changed (removed) this code should be removed as well.
-				 * In that case only 2400 related code should remain.
-				 */
-				ia_css_debug_dtrace(IA_CSS_DEBUG_TRACE_PRIVATE,
-						    "free_mipi_frames(%p) leave: nothing to do, other streams still use this port (port=%d).\n",
-						    pipe, port);
-			}
-#endif
 		}
 	} else { /* pipe ==NULL */
 		/* AM TEMP: free-ing all mipi buffers just like a legacy code. */