fix clippy

Author: burrbull

CHANGELOG.md

@@ -7,6 +7,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 
 ## [Unreleased]
 
+- Inside peripheral now supported multi-level `deriveFrom` for registers
 - Use `expand_properties` from `svd-parser`
 - Use modifiedWriteValues for 1-bitwise fields if present
 - Use generic `FieldWriter`, `FieldReader`, `BitWriter`, `BitReader`

src/generate/register.rs

@@ -21,7 +21,7 @@ pub fn render(
     config: &Config,
 ) -> Result<TokenStream> {
     let properties = &register.properties;
-    let access = util::access_of(&properties, register.fields.as_deref());
+    let access = util::access_of(properties, register.fields.as_deref());
     let name = util::name_of(register, config.ignore_groups);
     let span = Span::call_site();
     let name_pc = Ident::new(&name.to_sanitized_upper_case(), span);
@@ -158,7 +158,7 @@ pub fn render(
                 all_peripherals,
                 &rty,
                 access,
-                &properties,
+                properties,
                 &mut mod_items,
                 &mut r_impl_items,
                 &mut w_impl_items,