diff --git a/src/freedreno/vulkan/tu_image.c b/src/freedreno/vulkan/tu_image.c
index f5e4e3fb43c..0197ddc4bba 100644
--- a/src/freedreno/vulkan/tu_image.c
+++ b/src/freedreno/vulkan/tu_image.c
@@ -74,6 +74,14 @@ tu_format_for_aspect(enum pipe_format format, VkImageAspectFlags aspect_mask)
 {
    switch (format) {
    case PIPE_FORMAT_Z24_UNORM_S8_UINT:
+      /* VK_IMAGE_ASPECT_COLOR_BIT is used internally for blits (despite we
+       * also incorrectly advertise VK_FORMAT_FEATURE_COLOR_ATTACHMENT_BIT for
+       * depth formats).  Return PIPE_FORMAT_Z24_UNORM_S8_UINT_AS_R8G8B8A8 in
+       * this case.
+       *
+       * Otherwise, return the appropriate pipe format and let fdl6_view_init
+       * take care of the rest.
+       */
       if (aspect_mask & VK_IMAGE_ASPECT_COLOR_BIT)
          return PIPE_FORMAT_Z24_UNORM_S8_UINT_AS_R8G8B8A8;
       if (aspect_mask & VK_IMAGE_ASPECT_STENCIL_BIT) {