Re: [PATCH 6/7] rust: io: register: add `#[ro]` and `#[wo]` attributes

[sashiko-bot@kernel.org]

> `register!` gives every register a location with the `ReadWrite` access
> mode, so any register can be read, written and updated, including the
> ones the hardware defines as read-only or write-only.
> 
> Add the `#[ro]` and `#[wo]` attributes, which make the macro use the
> `ReadOnly` or `WriteOnly` mode instead: in the register's `OffsetLoc`
> for fixed registers, and as `RegisterArray::Access` for arrays. Reading
> a write-only register, or writing or updating a read-only one, then does
> not compile. An alias does not inherit the mode of the register it
> aliases. Add an example to the `register!` documentation.
> 
> The tyr driver uses the attributes in a following patch.
> 
> Signed-off-by: Daniel Almeida <daniel.almeida@collabora.com>

Sashiko has reviewed this patch and found no issues. It looks great!

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