[dif] Render init function only when there are registers

Razer6 · Razer6 · commit f3c3313159e9 · 2025-11-06T08:53:14.000Z
Signed-off-by: Robert Schilling &lt;rschilling@rivosinc.com&gt;
diff --git a/util/make_new_dif/ip.py b/util/make_new_dif/ip.py
@@ -149,3 +149,6 @@ def has_status_type_irqs(self):
                 return True
         else:
             return False
+
+    def has_registers(self):
+        return "registers" in self._hjson_data
diff --git a/util/make_new_dif/templates/dif_autogen.c.tpl b/util/make_new_dif/templates/dif_autogen.c.tpl
@@ -68,6 +68,7 @@ dif_result_t dif_${ip.name_snake}_init(
 
   return kDifOk;
 }
+% if ip.has_registers():
 
 OT_WARN_UNUSED_RESULT
 dif_result_t dif_${ip.name_snake}_init_from_dt(
@@ -82,6 +83,7 @@ dif_result_t dif_${ip.name_snake}_init_from_dt(
 
   return kDifOk;
 }
+% endif
 
 dif_result_t dif_${ip.name_snake}_get_dt(
   const dif_${ip.name_snake}_t *${ip.name_snake},

Original file line number	Diff line number	Diff line change
`@@ -68,6 +68,7 @@ dif_result_t dif_${ip.name_snake}_init(`
`68`	`68`
`69`	`69`	`return kDifOk;`
`70`	`70`	`}`
	`71`	`+% if ip.has_registers():`
`71`	`72`
`72`	`73`	`OT_WARN_UNUSED_RESULT`
`73`	`74`	`dif_result_t dif_${ip.name_snake}_init_from_dt(`
`@@ -82,6 +83,7 @@ dif_result_t dif_${ip.name_snake}_init_from_dt(`
`82`	`83`
`83`	`84`	`return kDifOk;`
`84`	`85`	`}`
	`86`	`+% endif`
`85`	`87`
`86`	`88`	`dif_result_t dif_${ip.name_snake}_get_dt(`
`87`	`89`	`const dif_${ip.name_snake}_t *${ip.name_snake},`