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From: Rob Herring <robh@kernel.org>
To: Christophe Leroy <christophe.leroy@c-s.fr>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>,
	Paul Mackerras <paulus@samba.org>,
	Michael Ellerman <mpe@ellerman.id.au>,
	Mark Rutland <mark.rutland@arm.com>,
	Mark Brown <broonie@kernel.org>,
	linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
	devicetree@vger.kernel.org,
	Linus Walleij <linus.walleij@linaro.org>,
	linux-spi@vger.kernel.org
Subject: Re: [PATCH] powerpc/devicetrees: Change 'gpios' to 'cs-gpios' on fsl,spi nodes
Date: Fri, 13 Dec 2019 15:34:18 -0600	[thread overview]
Message-ID: <20191213213418.GA17361@bogus> (raw)
In-Reply-To: <7556683b57d8ce100855857f03d1cd3d2903d045.1574943062.git.christophe.leroy@c-s.fr>

On Thu, Nov 28, 2019 at 12:16:35PM +0000, Christophe Leroy wrote:
> Since commit 0f0581b24bd0 ("spi: fsl: Convert to use CS GPIO
> descriptors"), the prefered way to define chipselect GPIOs is using
> 'cs-gpios' property instead of the legacy 'gpios' property.

This will break using a new dtb on a kernel without the above commit. Or 
with any OS that never made the change.

I'm fine with the doc change, but you should keep 'gpios' as deprecated.

> 
> Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
> ---
>  Documentation/devicetree/bindings/spi/fsl-spi.txt | 8 ++++----
>  arch/powerpc/boot/dts/mgcoge.dts                  | 2 +-
>  arch/powerpc/boot/dts/mpc832x_rdb.dts             | 2 +-
>  arch/powerpc/boot/dts/mpc8610_hpcd.dts            | 2 +-
>  4 files changed, 7 insertions(+), 7 deletions(-)

  parent reply	other threads:[~2019-12-13 21:34 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-01-17 11:58 [PATCH v5 0/2] add device tree for SAM9X60 SoC and SAM9X60-EK board Claudiu Beznea
2019-11-28 12:16 ` [PATCH] powerpc/devicetrees: Change 'gpios' to 'cs-gpios' on fsl,spi nodes Christophe Leroy
2019-11-28 12:21   ` Linus Walleij
2019-12-13 21:34   ` Rob Herring [this message]
2019-12-14  7:30     ` Christophe Leroy
2020-01-29  5:17   ` [PATCH] powerpc/devicetrees: Change 'gpios' to 'cs-gpios' on fsl, spi nodes Michael Ellerman
2020-02-10 14:25   ` Patchwork summary for: spi-devel-general patchwork-bot+linux-spi-DgEjT+Ai2ygdnm+yROfE0A
     [not found] ` <1579262309-6542-1-git-send-email-claudiu.beznea-UWL1GkI3JZL3oGB3hsPCZA@public.gmane.org>
2020-01-17 11:58   ` [PATCH v5 1/2] dt-bindings: atmel-usart: remove wildcard Claudiu Beznea
     [not found]     ` <1579262309-6542-2-git-send-email-claudiu.beznea-UWL1GkI3JZL3oGB3hsPCZA@public.gmane.org>
2020-01-20  8:39       ` Lee Jones
2020-01-17 11:58   ` [PATCH v5 2/2] dt-bindings: atmel-usart: add microchip,sam9x60-{usart, dbgu} Claudiu Beznea
     [not found]     ` <1579262309-6542-3-git-send-email-claudiu.beznea-UWL1GkI3JZL3oGB3hsPCZA@public.gmane.org>
2020-01-20  8:39       ` Lee Jones

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