kernel-ark/include/linux/jz4740-adc.h
Lars-Peter Clausen 91f4debf5e mfd: Add JZ4740 ADC driver
This patch adds a MFD driver for the JZ4740 ADC unit. The driver is used to
demultiplex IRQs and synchronize access to shared registers between the
battery, hwmon and (future) touchscreen driver.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-08-12 11:27:58 +02:00

33 lines
995 B
C

#ifndef __LINUX_JZ4740_ADC
#define __LINUX_JZ4740_ADC
#include <linux/device.h>
/*
* jz4740_adc_set_config - Configure a JZ4740 adc device
* @dev: Pointer to a jz4740-adc device
* @mask: Mask for the config value to be set
* @val: Value to be set
*
* This function can be used by the JZ4740 ADC mfd cells to configure their
* options in the shared config register.
*/
int jz4740_adc_set_config(struct device *dev, uint32_t mask, uint32_t val);
#define JZ_ADC_CONFIG_SPZZ BIT(31)
#define JZ_ADC_CONFIG_EX_IN BIT(30)
#define JZ_ADC_CONFIG_DNUM_MASK (0x7 << 16)
#define JZ_ADC_CONFIG_DMA_ENABLE BIT(15)
#define JZ_ADC_CONFIG_XYZ_MASK (0x2 << 13)
#define JZ_ADC_CONFIG_SAMPLE_NUM_MASK (0x7 << 10)
#define JZ_ADC_CONFIG_CLKDIV_MASK (0xf << 5)
#define JZ_ADC_CONFIG_BAT_MB BIT(4)
#define JZ_ADC_CONFIG_DNUM(dnum) ((dnum) << 16)
#define JZ_ADC_CONFIG_XYZ_OFFSET(dnum) ((xyz) << 13)
#define JZ_ADC_CONFIG_SAMPLE_NUM(x) ((x) << 10)
#define JZ_ADC_CONFIG_CLKDIV(div) ((div) << 5)
#endif