linux-kernel - Re: [PATCHv4] ARM: tegra: add gpiod

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Date:	Wed, 4 Dec 2013 14:18:33 +0900
From:	Alex Courbot <acourbot@...dia.com>
To:	Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
	Mika Westerberg <mika.westerberg@...ux.intel.com>,
	Linus Walleij <linus.walleij@...aro.org>
CC:	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	Chris Ball <cjb@...top.org>,
	Johannes Berg <johannes@...solutions.net>,
	Rhyland Klein <rklein@...dia.com>,
	Adrian Hunter <adrian.hunter@...el.com>,
	Mathias Nyman <mathias.nyman@...ux.intel.com>,
	Rob Landley <rob@...dley.net>,
	Stephen Warren <swarren@...dotorg.org>,
	Thierry Reding <thierry.reding@...il.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-gpio@...r.kernel.org" <linux-gpio@...r.kernel.org>
Subject: Re: [PATCHv4] ARM: tegra: add gpiod_lookup table for paz00

On 12/03/2013 09:49 PM, Heikki Krogerus wrote:
> This makes it possible to request the gpio descriptors in
> rfkill_gpio driver regardless of the platform.
>
> Signed-off-by: Heikki Krogerus <heikki.krogerus@...ux.intel.com>
> ---
>   arch/arm/mach-tegra/board-paz00.c | 11 +++++++++++
>   1 file changed, 11 insertions(+)
>
> Changes since v3:
> -----------------
> Rebased on top of Alexandre's patch "gpio: better lookup method for
> platform GPIOs".
>
> diff --git a/arch/arm/mach-tegra/board-paz00.c b/arch/arm/mach-tegra/board-paz00.c
> index 06f0240..e4dec9f 100644
> --- a/arch/arm/mach-tegra/board-paz00.c
> +++ b/arch/arm/mach-tegra/board-paz00.c
> @@ -18,6 +18,7 @@
>    */
>
>   #include <linux/platform_device.h>
> +#include <linux/gpio/driver.h>
>   #include <linux/rfkill-gpio.h>
>   #include "board.h"
>
> @@ -36,7 +37,17 @@ static struct platform_device wifi_rfkill_device = {
>   	},
>   };
>
> +static struct gpiod_lookup_table wifi_gpio_lookup = {
> +	.dev_id = "rfkill_gpio",
> +	.table = {
> +		GPIO_LOOKUP_IDX("tegra-gpio", 25, NULL, 0, 0),
> +		GPIO_LOOKUP_IDX("tegra-gpio", 85, NULL, 1, 0),

nit: the flags could be changed to GPIO_ACTIVE_HIGH (which evaluates to 
0) to be more explicit.
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