Re: [PATCH 2/2] spi: dw: Add supports_op function to reject unsupported transfer modes

Anirudh Srinivasan <[email protected]>
Newsgroups org.u-boot-project.lists.u-boot
Message-ID <CAEev2e8_B3EH0A0KuPK5L2b28GDJt6cyRZpuFAZeOM0o9t0bww@mail.gmail.com>
Hi all,

On Mon, Aug 3, 2026 at 2:01 PM Anirudh Srinivasan
<[email protected]> wrote:
>
> The designware spi driver doesn't support dual/quad/octal modes, but
> the driver still tries using these modes when it sees a capable flash
> chip in the devicetree. Add a supports_op function to this driver to
> prevent this from happening and force single lane operation.
>
> Signed-off-by: Anirudh Srinivasan <[email protected]>
> ---
>  drivers/spi/designware_spi.c | 14 ++++++++++++++
>  1 file changed, 14 insertions(+)

Gentle ping on this patch.  I was wondering if anyone has comments on this.
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