linux-kernel - Re: [PATCH v2] pinctrl: aspeed: Allow changing SPI mode from hardware strap defaults

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Message-ID: <3bf55144b8169a8f44c67e9a6b63cc67a2edfa50.camel@codeconstruct.com.au>
Date:   Thu, 05 Oct 2023 13:44:54 +1030
From:   Andrew Jeffery <andrew@...econstruct.com.au>
To:     Zev Weiss <zev@...ilderbeest.net>,
        Linus Walleij <linus.walleij@...aro.org>,
        Joel Stanley <joel@....id.au>, linux-aspeed@...ts.ozlabs.org
Cc:     openbmc@...ts.ozlabs.org, linux-gpio@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] pinctrl: aspeed: Allow changing SPI mode from
 hardware strap defaults

On Wed, 2023-10-04 at 20:08 -0700, Zev Weiss wrote:
> Some platforms unfortunately have their SPI mode selection bits
> strapped incorrectly (such as being configured for passthrough mode
> when master mode is in fact the only useful configuration for it) and
> thus require correction in software.  Add the SPI mode bits to the
> GPIO passthrough bits as the exceptions to the read-only rule for the
> hardware strap register so that the pinctrl subsystem can be used for
> such corrections.
> 
> Signed-off-by: Zev Weiss <zev@...ilderbeest.net>

Reviewed-by: Andrew Jeffery <andrew@...econstruct.com.au>

Thanks!