Commit 2c237329 authored by Paul Mundt's avatar Paul Mundt
Browse files

sh: mach-x3proto: gpio-keys support.



This adds gpio-keys mappings for the button matrix on the baseboard,
now that we have support for the pin controller.

Signed-off-by: default avatarPaul Mundt <lethal@linux-sh.org>
parent 55059114
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+105 −2
Original line number Diff line number Diff line
/*
 * arch/sh/boards/renesas/x3proto/setup.c
 * arch/sh/boards/mach-x3proto/setup.c
 *
 * Renesas SH-X3 Prototype Board Support.
 *
 * Copyright (C) 2007 - 2008 Paul Mundt
 * Copyright (C) 2007 - 2010  Paul Mundt
 *
 * This file is subject to the terms and conditions of the GNU General Public
 * License.  See the file "COPYING" in the main directory of this archive
@@ -16,9 +16,13 @@
#include <linux/smc91x.h>
#include <linux/irq.h>
#include <linux/interrupt.h>
#include <linux/input.h>
#include <linux/usb/r8a66597.h>
#include <linux/usb/m66592.h>
#include <linux/gpio.h>
#include <linux/gpio_keys.h>
#include <mach/ilsel.h>
#include <mach/hardware.h>
#include <asm/smp-ops.h>

static struct resource heartbeat_resources[] = {
@@ -122,11 +126,95 @@ static struct platform_device m66592_usb_peripheral_device = {
	.resource	= m66592_usb_peripheral_resources,
};

static struct gpio_keys_button baseboard_buttons[NR_BASEBOARD_GPIOS] = {
	{
		.desc		= "key44",
		.code		= KEY_POWER,
		.active_low	= 1,
		.wakeup		= 1,
	}, {
		.desc		= "key43",
		.code		= KEY_SUSPEND,
		.active_low	= 1,
		.wakeup		= 1,
	}, {
		.desc		= "key42",
		.code		= KEY_KATAKANAHIRAGANA,
		.active_low	= 1,
	}, {
		.desc		= "key41",
		.code		= KEY_SWITCHVIDEOMODE,
		.active_low	= 1,
	}, {
		.desc		= "key34",
		.code		= KEY_F12,
		.active_low	= 1,
	}, {
		.desc		= "key33",
		.code		= KEY_F11,
		.active_low	= 1,
	}, {
		.desc		= "key32",
		.code		= KEY_F10,
		.active_low	= 1,
	}, {
		.desc		= "key31",
		.code		= KEY_F9,
		.active_low	= 1,
	}, {
		.desc		= "key24",
		.code		= KEY_F8,
		.active_low	= 1,
	}, {
		.desc		= "key23",
		.code		= KEY_F7,
		.active_low	= 1,
	}, {
		.desc		= "key22",
		.code		= KEY_F6,
		.active_low	= 1,
	}, {
		.desc		= "key21",
		.code		= KEY_F5,
		.active_low	= 1,
	}, {
		.desc		= "key14",
		.code		= KEY_F4,
		.active_low	= 1,
	}, {
		.desc		= "key13",
		.code		= KEY_F3,
		.active_low	= 1,
	}, {
		.desc		= "key12",
		.code		= KEY_F2,
		.active_low	= 1,
	}, {
		.desc		= "key11",
		.code		= KEY_F1,
		.active_low	= 1,
	},
};

static struct gpio_keys_platform_data baseboard_buttons_data = {
	.buttons	= baseboard_buttons,
	.nbuttons	= ARRAY_SIZE(baseboard_buttons),
};

static struct platform_device baseboard_buttons_device = {
	.name		= "gpio-keys",
	.id		= -1,
	.dev		= {
		.platform_data	= &baseboard_buttons_data,
	},
};

static struct platform_device *x3proto_devices[] __initdata = {
	&heartbeat_device,
	&smc91x_device,
	&r8a66597_usb_host_device,
	&m66592_usb_peripheral_device,
	&baseboard_buttons_device,
};

static void __init x3proto_init_irq(void)
@@ -139,12 +227,27 @@ static void __init x3proto_init_irq(void)

static int __init x3proto_devices_setup(void)
{
	int ret, i;

	/*
	 * IRLs are only needed for ILSEL mappings, so flip over the INTC
	 * pins at a later point to enable the GPIOs to settle.
	 */
	x3proto_init_irq();

	/*
	 * Now that ILSELs are available, set up the baseboard GPIOs.
	 */
	ret = x3proto_gpio_setup();
	if (unlikely(ret))
		return ret;

	/*
	 * Propagate dynamic GPIOs for the baseboard button device.
	 */
	for (i = 0; i < ARRAY_SIZE(baseboard_buttons); i++)
		baseboard_buttons[i].gpio = x3proto_gpio_chip.base + i;

	r8a66597_usb_host_resources[1].start =
		r8a66597_usb_host_resources[1].end = ilsel_enable(ILSEL_USBH_I);