linux-kernel - Re: spitz: add gpio button support (fixes regression)

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Message-Id: <1255643252.3985.63.camel@utx.utx.cz>
Date:	Thu, 15 Oct 2009 23:47:32 +0200
From:	Stanislav Brabec <utx@...guin.cz>
To:	Pavel Machek <pavel@....cz>
Cc:	Eric Miao <eric.y.miao@...il.com>, Andrew Morton <akpm@...l.org>,
	Mark Brown <broonie@...nsource.wolfsonmicro.com>,
	rpurdie@...ys.net, lenz@...wisc.edu,
	kernel list <linux-kernel@...r.kernel.org>,
	Dirk@...er-online.de, arminlitzel@....de,
	Cyril Hrubis <metan@....cz>, thommycheck@...il.com,
	linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
	dbaryshkov@...il.com, omegamoon@...il.com
Subject: Re: spitz: add gpio button support (fixes regression)

Pavel Machek wrote:
>Well, resume is hit by second regression.
>
>Suspend key.... I restored it to the level of functionality in
>2.6.31 :-).

> > +		.type	= EV_KEY,
> > +		.code	= KEY_SUSPEND,

I guess it should be EV_PWR. Then it will at least go to suspend.

Here is a patch with just this change. Also changing .desc to
"On/Off" (the text on the case).

diff --git a/arch/arm/mach-pxa/spitz.c b/arch/arm/mach-pxa/spitz.c
index ee8d603..c690522 100644
--- a/arch/arm/mach-pxa/spitz.c
+++ b/arch/arm/mach-pxa/spitz.c
@@ -15,6 +15,7 @@
 #include <linux/kernel.h>
 #include <linux/platform_device.h>
 #include <linux/delay.h>
+#include <linux/gpio_keys.h>
 #include <linux/gpio.h>
 #include <linux/leds.h>
 #include <linux/mtd/physmap.h>
@@ -375,6 +376,43 @@ static struct platform_device spitzkbd_device = {
 };
 
 
+static struct gpio_keys_button spitz_gpio_keys[] = {
+	{
+		.type	= EV_PWR,
+		.code	= KEY_SUSPEND,
+		.gpio	= SPITZ_GPIO_ON_KEY,
+		.desc	= "On/Off",
+		.wakeup	= 1,
+	},
+	/* Two buttons detecting the LID state */
+	{
+		.type	= EV_SW,
+		.code	= 0,
+		.gpio	= SPITZ_GPIO_SWA,
+		.desc	= "Lid SWA",
+	},
+	{
+		.type	= EV_SW,
+		.code	= 1,
+		.gpio	= SPITZ_GPIO_SWB,
+		.desc	= "Lid SWB",
+	},
+};
+
+static struct gpio_keys_platform_data spitz_gpio_keys_platform_data = {
+	.buttons	= spitz_gpio_keys,
+	.nbuttons	= ARRAY_SIZE(spitz_gpio_keys),
+};
+
+static struct platform_device spitz_gpio_keys_device = {
+	.name	= "gpio-keys",
+	.id	= -1,
+	.dev	= {
+		.platform_data	= &spitz_gpio_keys_platform_data,
+	},
+};
+
+
 /*
  * Spitz LEDs
  */
@@ -689,6 +727,7 @@ static struct platform_device sharpsl_rom_device = {
 static struct platform_device *devices[] __initdata = {
 	&spitzscoop_device,
 	&spitzkbd_device,
+	&spitz_gpio_keys_device,
 	&spitzled_device,
 	&sharpsl_nand_device,
 	&sharpsl_rom_device,



________________________________________________________________________
Stanislav Brabec
http://www.penguin.cz/~utx

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