linux-kernel - Re: [PATCH 6/8] mfd: Add STMPE1600 support

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Date:	Wed, 20 Apr 2016 16:43:24 +0200
From:	Linus Walleij <linus.walleij@...aro.org>
To:	Patrice CHOTARD <patrice.chotard@...com>
Cc:	Lee Jones <lee.jones@...aro.org>,
	Alexandre Courbot <gnurou@...il.com>,
	"linux-gpio@...r.kernel.org" <linux-gpio@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	Maxime Coquelin <maxime.coquelin@...com>,
	amelie.delaunay@...com, Shawn Guo <shawnguo@...nel.org>,
	Sascha Hauer <kernel@...gutronix.de>,
	Dinh Nguyen <dinguyen@...nsource.altera.com>,
	Viresh Kumar <vireshk@...nel.org>,
	Shiraz Hashim <shiraz.linux.kernel@...il.com>,
	Stephen Warren <swarren@...dotorg.org>,
	Thierry Reding <thierry.reding@...il.com>
Subject: Re: [PATCH 6/8] mfd: Add STMPE1600 support

On Tue, Apr 19, 2016 at 2:18 PM,  <patrice.chotard@...com> wrote:

> From: Patrice Chotard <patrice.chotard@...com>
>
> STMPE1600 is a 16-bit port expander.
> Datasheet is available here :
> http://www2.st.com/content/st_com/en/products/interfaces-and-transceivers/
> i-o-expanders-and-level-translators/i-o-expanders/stmpe1600.html
>
> As STMPE1600's SYS_CTRL register has the same layout as
> STMPE801 variant, unify STMPExxx_REG_SYS_CTRL_RESET/INT_EN/INT_HI
> bit masks to more generic STMPE_SYS_CTRL_RESET/INT_EN/INT_HI
>
> Signed-off-by: Amelie DELAUNAY <amelie.delaunay@...com>
> Signed-off-by: Patrice Chotard <patrice.chotard@...com>

(...)
>  #define STMPE_SYS_CTRL_RESET   (1 << 7)
> +#define STMPE_SYS_CTRL_INT_EN  (1 << 2)
> +#define STMPE_SYS_CTRL_INT_HI  (1 << 0)
>
>  /*
>   * STMPE801
> @@ -121,10 +123,6 @@ int stmpe_remove(struct stmpe *stmpe);
>  #define STMPE801_REG_GPIO_SET_PIN      0x11
>  #define STMPE801_REG_GPIO_DIR          0x12
>
> -#define STMPE801_REG_SYS_CTRL_RESET    (1 << 7)
> -#define STMPE801_REG_SYS_CTRL_INT_EN   (1 << 2)
> -#define STMPE801_REG_SYS_CTRL_INT_HI   (1 << 0)

This looks like unrelated cleanups?
Should this be in the reset enablement patch?
(It's OK with me though.)

With that fixed:
Acked-by: Linus Walleij <linus.walleij@...aro.org>

Yours,
Linus Walleij