linux-kernel - Re: [PATCH 1/2] pinctrl: rockchip: Define GPIO banks 7 and 8

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Date:	Sat, 12 Sep 2015 12:40:37 +0200
From:	Heiko Stübner <heiko@...ech.de>
To:	Sjoerd Simons <sjoerd.simons@...labora.co.uk>
Cc:	linux-rockchip@...ts.infradead.org, devicetree@...r.kernel.org,
	Kumar Gala <galak@...eaurora.org>,
	linux-kernel@...r.kernel.org,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Rob Herring <robh+dt@...nel.org>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH 1/2] pinctrl: rockchip: Define GPIO banks 7 and 8

Hi Sjoerd,

Am Samstag, 12. September 2015, 00:36:44 schrieb Sjoerd Simons:
> Rockchip RK3288 has 9 GPIO banks (0 to 8) add definitions for the last
> two.
> 
> Signed-off-by: Sjoerd Simons <sjoerd.simons@...labora.co.uk>
> ---
> 
>  include/dt-bindings/pinctrl/rockchip.h | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/include/dt-bindings/pinctrl/rockchip.h
> b/include/dt-bindings/pinctrl/rockchip.h index 743e66a..efc57cf 100644
> --- a/include/dt-bindings/pinctrl/rockchip.h
> +++ b/include/dt-bindings/pinctrl/rockchip.h
> @@ -24,6 +24,8 @@
>  #define RK_GPIO3	3
>  #define RK_GPIO4	4
>  #define RK_GPIO6	6
> +#define RK_GPIO7	7
> +#define RK_GPIO8	8
> 
>  #define RK_FUNC_GPIO	0
>  #define RK_FUNC_1	1

I'm actually not sure about these. In retrospect the RK_GPIOx -> x defines do 
not provide any additional value compared to just having the actual value in 
the pinctrl-nodes, so we phased them out largely for the rk3288 boards.

While looking through some boards, I saw that some slipped in for stuff that 
gets copy'n'paste treatment most of the time, but generally we're only using 
the real numbers on boards - and I'd like to keep it that way and phase out 
the RK_GPIOx constants in new boards.


Heiko
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