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Commit 5364c647 authored by Alexander Sverdlin's avatar Alexander Sverdlin
Browse files

ARM: ep93xx: Add ADC platform device support to core 



Newly provided ep93xx_register_adc() could be used by machine-specific code
to create ADC platform device on Cirrus Logic EP93xx SoC-based machines.

Signed-off-by: default avatarAlexander Sverdlin <alexander.sverdlin@gmail.com>
parent f2322451

arch/arm/mach-ep93xx/core.c

+24 −0
Original line number Diff line number Diff line
@@ -820,6 +820,30 @@ void ep93xx_ide_release_gpio(struct platform_device *pdev) 
}

EXPORT_SYMBOL(ep93xx_ide_release_gpio);



/*************************************************************************

 * EP93xx ADC

 *************************************************************************/

static struct resource ep93xx_adc_resources[] = {

	DEFINE_RES_MEM(EP93XX_ADC_PHYS_BASE, 0x28),

	DEFINE_RES_IRQ(IRQ_EP93XX_TOUCH),

};



static struct platform_device ep93xx_adc_device = {

	.name		= "ep93xx-adc",

	.id		= -1,

	.num_resources	= ARRAY_SIZE(ep93xx_adc_resources),

	.resource	= ep93xx_adc_resources,

};



void __init ep93xx_register_adc(void)

{

	/* Power up ADC, deactivate Touch Screen Controller */

	ep93xx_devcfg_set_clear(EP93XX_SYSCON_DEVCFG_TIN,

				EP93XX_SYSCON_DEVCFG_ADCPD);



	platform_device_register(&ep93xx_adc_device);

}



/*************************************************************************

 * EP93xx Security peripheral

 *************************************************************************/

arch/arm/mach-ep93xx/include/mach/platform.h

+1 −0
Original line number Diff line number Diff line
@@ -52,6 +52,7 @@ int ep93xx_i2s_acquire(void); 
void ep93xx_i2s_release(void);

void ep93xx_register_ac97(void);

void ep93xx_register_ide(void);

void ep93xx_register_adc(void);

int ep93xx_ide_acquire_gpio(struct platform_device *pdev);

void ep93xx_ide_release_gpio(struct platform_device *pdev);

arch/arm/mach-ep93xx/soc.h

+1 −0
Original line number Diff line number Diff line
@@ -95,6 +95,7 @@ 
#define EP93XX_KEY_MATRIX_PHYS_BASE	EP93XX_APB_PHYS(0x000f0000)

#define EP93XX_KEY_MATRIX_BASE		EP93XX_APB_IOMEM(0x000f0000)



#define EP93XX_ADC_PHYS_BASE		EP93XX_APB_PHYS(0x00100000)

#define EP93XX_ADC_BASE			EP93XX_APB_IOMEM(0x00100000)

#define EP93XX_TOUCHSCREEN_BASE		EP93XX_APB_IOMEM(0x00100000)