Commit 2eec62d7 authored by Dmitry Artamonow's avatar Dmitry Artamonow Committed by Russell King
Browse files

ARM: 5813/1: SA1100: h3100/h3600: add htc-egpio driver 



It will be used for future conversion of assign_h3600_egpio calls to
gpiolib.

Signed-off-by: default avatarDmitry Artamonow <mad_soft@inbox.ru>
Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
parent cf5a87d8

arch/arm/mach-sa1100/h3600.c

+45 −0
Original line number Diff line number Diff line
@@ -25,10 +25,12 @@ 
#include <linux/tty.h>

#include <linux/pm.h>

#include <linux/device.h>

#include <linux/mfd/htc-egpio.h>

#include <linux/mtd/mtd.h>

#include <linux/mtd/partitions.h>

#include <linux/serial_core.h>

#include <linux/gpio.h>

#include <linux/platform_device.h>



#include <asm/irq.h>

#include <mach/hardware.h>
@@ -184,11 +186,54 @@ static struct sa1100_port_fns h3xxx_port_fns __initdata = { 
	.set_wake	= h3xxx_uart_set_wake,

};



/*

 * EGPIO

 */



static struct resource egpio_resources[] = {

	[0] = {

		.start	= H3600_EGPIO_PHYS,

		.end	= H3600_EGPIO_PHYS + 0x4 - 1,

		.flags	= IORESOURCE_MEM,

	},

};



static struct htc_egpio_chip egpio_chips[] = {

	[0] = {

		.reg_start	= 0,

		.gpio_base	= H3XXX_EGPIO_BASE,

		.num_gpios	= 16,

		.direction	= HTC_EGPIO_OUTPUT,

		.initial_values	= 0x0080, /* H3XXX_EGPIO_RS232_ON */

	},

};



static struct htc_egpio_platform_data egpio_info = {

	.reg_width	= 16,

	.bus_width	= 16,

	.chip		= egpio_chips,

	.num_chips	= ARRAY_SIZE(egpio_chips),

};



static struct platform_device h3xxx_egpio = {

	.name		= "htc-egpio",

	.id		= -1,

	.resource	= egpio_resources,

	.num_resources	= ARRAY_SIZE(egpio_resources),

	.dev		= {

		.platform_data = &egpio_info,

	},

};



static struct platform_device *h3xxx_devices[] = {

	&h3xxx_egpio,

};



static void __init h3xxx_mach_init(void)

{

	sa1100_register_uart_fns(&h3xxx_port_fns);

	sa11x0_register_mtd(&h3xxx_flash_data, &h3xxx_flash_resource, 1);

	platform_add_devices(h3xxx_devices, ARRAY_SIZE(h3xxx_devices));

}



static struct map_desc h3600_io_desc[] __initdata = {

arch/arm/mach-sa1100/include/mach/h3600_gpio.h

+24 −0
Original line number Diff line number Diff line
@@ -97,4 +97,28 @@ 
#define EGPIO_H3600_LVDD_ON		(1 << 15)  /* enable 9V and -6.5V to LCD. */





/* gpiolib versions of EGPIOs */



/* H3100 / 3600 EGPIO pins */

#define H3XXX_EGPIO_BASE		(GPIO_MAX + 1)



#define H3XXX_EGPIO_VPP_ON		(H3XXX_EGPIO_BASE + 0)

#define H3XXX_EGPIO_CARD_RESET		(H3XXX_EGPIO_BASE + 1) /* reset the attached pcmcia/compactflash card.  active high. */

#define H3XXX_EGPIO_OPT_RESET		(H3XXX_EGPIO_BASE + 2) /* reset the attached option pack.  active high. */

#define H3XXX_EGPIO_CODEC_NRESET	(H3XXX_EGPIO_BASE + 3) /* reset the onboard UDA1341.  active low. */

#define H3XXX_EGPIO_OPT_NVRAM_ON	(H3XXX_EGPIO_BASE + 4) /* apply power to optionpack nvram, active high. */

#define H3XXX_EGPIO_OPT_ON		(H3XXX_EGPIO_BASE + 5) /* full power to option pack.  active high. */

#define H3XXX_EGPIO_LCD_ON		(H3XXX_EGPIO_BASE + 6) /* enable 3.3V to LCD.  active high. */

#define H3XXX_EGPIO_RS232_ON		(H3XXX_EGPIO_BASE + 7) /* UART3 transceiver force on.  Active high. */



/* H3600 only EGPIO pins */

#define H3600_EGPIO_LCD_PCI		(H3XXX_EGPIO_BASE + 8) /* LCD control IC enable.  active high. */

#define H3600_EGPIO_IR_ON		(H3XXX_EGPIO_BASE + 9) /* apply power to IR module.  active high. */

#define H3600_EGPIO_AUD_AMP_ON		(H3XXX_EGPIO_BASE + 10) /* apply power to audio power amp.  active high. */

#define H3600_EGPIO_AUD_PWR_ON		(H3XXX_EGPIO_BASE + 11) /* apply power to reset of audio circuit.  active high. */

#define H3600_EGPIO_QMUTE		(H3XXX_EGPIO_BASE + 12) /* mute control for onboard UDA1341.  active high. */

#define H3600_EGPIO_IR_FSEL		(H3XXX_EGPIO_BASE + 13) /* IR speed select: 1->fast, 0->slow */

#define H3600_EGPIO_LCD_5V_ON		(H3XXX_EGPIO_BASE + 14) /* enable 5V to LCD. active high. */

#define H3600_EGPIO_LVDD_ON		(H3XXX_EGPIO_BASE + 15) /* enable 9V and -6.5V to LCD. */



#endif /* _INCLUDE_H3600_GPIO_H_ */