61 lines
1.9 KiB
C
61 lines
1.9 KiB
C
|
/* platform data for the PCAL6524 16-bit I/O expander driver */
|
||
|
|
|
||
|
|
#ifndef _PCAL6524_H_
|
||
|
|
#define _PCAL6524_H_
|
||
|
|
|
||
|
|
#define DRV_NAME "pcal6524-gpio"
|
||
|
|
|
||
|
|
#define PCAL6524_INPUT 0x00 /* Input port [RO] */
|
||
|
|
#define PCAL6524_DAT_OUT 0x04 /* GPIO DATA OUT [R/W] */
|
||
|
|
#define PCAL6524_POLARITY 0x08 /* Polarity Inversion port [R/W] */
|
||
|
|
#define PCAL6524_CONFIG 0x0C /* Configuration port [R/W] */
|
||
|
|
#define PCAL6524_DRIVE0 0x40 /* Output drive strength register Port0 [R/W] */
|
||
|
|
#define PCAL6524_DRIVE1 0x42 /* Output drive strength register Port1 [R/W] */
|
||
|
|
#define PCAL6524_DRIVE2 0x44 /* Output drive strength register Port1 [R/W] */
|
||
|
|
#define PCAL6524_INPUT_LATCH 0x48 /* Port0 Input latch register [R/W] */
|
||
|
|
#define PCAL6524_EN_PULLUPDOWN 0x4C /* Port0 Pull-up/Pull-down Enable [R/W] */
|
||
|
|
#define PCAL6524_SEL_PULLUPDOWN 0x50 /* Port0 Pull-up/Pull-down selection [R/W] */
|
||
|
|
#define PCAL6524_INT_MASK 0x54 /* Interrupt mask register [R/W] */
|
||
|
|
#define PCAL6524_INT_STATUS 0x58 /* Interrupt status register [RO] */
|
||
|
|
#define PCAL6524_OUTPUT_CONFIG 0x5C /* Output port configuration register [R/W] */
|
||
|
|
|
||
|
|
#define NO_PULL 0x00
|
||
|
|
#define PULL_DOWN 0x01
|
||
|
|
#define PULL_UP 0x02
|
||
|
|
|
||
|
|
#define POWER_ON 1
|
||
|
|
#define POWER_OFF 0
|
||
|
|
|
||
|
|
#define PCAL6524_PORT_CNT 3
|
||
|
|
#define PCAL6524_MAX_GPIO 23
|
||
|
|
|
||
|
|
/* EXPANDER GPIO Drive Strength */
|
||
|
|
enum {
|
||
|
|
GPIO_CFG_6_25MA,
|
||
|
|
GPIO_CFG_12_5MA,
|
||
|
|
GPIO_CFG_18_75MA,
|
||
|
|
GPIO_CFG_25MA,
|
||
|
|
};
|
||
|
|
|
||
|
|
struct pcal6524_platform_data {
|
||
|
|
/* number of the first GPIO */
|
||
|
|
unsigned int gpio_base;
|
||
|
|
int gpio_start;
|
||
|
|
int ngpio;
|
||
|
|
int irq_base;
|
||
|
|
int irq_gpio;
|
||
|
|
int reset_gpio;
|
||
|
|
uint32_t support_init;
|
||
|
|
uint32_t init_config;
|
||
|
|
uint32_t init_data_out;
|
||
|
|
uint32_t init_en_pull;
|
||
|
|
uint32_t init_sel_pull;
|
||
|
|
struct regulator *vdd;
|
||
|
|
};
|
||
|
|
|
||
|
|
#ifdef CONFIG_SEC_PM_DEBUG
|
||
|
|
int expander_print_all(void);
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#endif
|