[ARM] pxa/balloon3: PCF857x GPIO expander and LEDs
Add supported for PCF8574A GPIO expander and LEDs attached to it. Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
This commit is contained in:
parent
a9c0629cde
commit
02a453e4a5
|
@ -26,6 +26,7 @@
|
|||
#include <linux/mtd/mtd.h>
|
||||
#include <linux/mtd/partitions.h>
|
||||
#include <linux/types.h>
|
||||
#include <linux/i2c/pcf857x.h>
|
||||
|
||||
#include <asm/setup.h>
|
||||
#include <asm/mach-types.h>
|
||||
|
@ -375,15 +376,65 @@ static struct gpio_led_platform_data balloon3_gpio_led_info = {
|
|||
|
||||
static struct platform_device balloon3_leds = {
|
||||
.name = "leds-gpio",
|
||||
.id = -1,
|
||||
.id = 0,
|
||||
.dev = {
|
||||
.platform_data = &balloon3_gpio_led_info,
|
||||
}
|
||||
};
|
||||
|
||||
struct gpio_led balloon3_pcf_gpio_leds[] = {
|
||||
{
|
||||
.name = "balloon3:green:led0",
|
||||
.gpio = BALLOON3_PCF_GPIO_LED0,
|
||||
.active_low = 1,
|
||||
}, {
|
||||
.name = "balloon3:green:led1",
|
||||
.gpio = BALLOON3_PCF_GPIO_LED1,
|
||||
.active_low = 1,
|
||||
}, {
|
||||
.name = "balloon3:orange:led2",
|
||||
.gpio = BALLOON3_PCF_GPIO_LED2,
|
||||
.active_low = 1,
|
||||
}, {
|
||||
.name = "balloon3:orange:led3",
|
||||
.gpio = BALLOON3_PCF_GPIO_LED3,
|
||||
.active_low = 1,
|
||||
}, {
|
||||
.name = "balloon3:orange:led4",
|
||||
.gpio = BALLOON3_PCF_GPIO_LED4,
|
||||
.active_low = 1,
|
||||
}, {
|
||||
.name = "balloon3:orange:led5",
|
||||
.gpio = BALLOON3_PCF_GPIO_LED5,
|
||||
.active_low = 1,
|
||||
}, {
|
||||
.name = "balloon3:red:led6",
|
||||
.gpio = BALLOON3_PCF_GPIO_LED6,
|
||||
.active_low = 1,
|
||||
}, {
|
||||
.name = "balloon3:red:led7",
|
||||
.gpio = BALLOON3_PCF_GPIO_LED7,
|
||||
.active_low = 1,
|
||||
},
|
||||
};
|
||||
|
||||
static struct gpio_led_platform_data balloon3_pcf_gpio_led_info = {
|
||||
.leds = balloon3_pcf_gpio_leds,
|
||||
.num_leds = ARRAY_SIZE(balloon3_pcf_gpio_leds),
|
||||
};
|
||||
|
||||
static struct platform_device balloon3_pcf_leds = {
|
||||
.name = "leds-gpio",
|
||||
.id = 1,
|
||||
.dev = {
|
||||
.platform_data = &balloon3_pcf_gpio_led_info,
|
||||
}
|
||||
};
|
||||
|
||||
static void __init balloon3_leds_init(void)
|
||||
{
|
||||
platform_device_register(&balloon3_leds);
|
||||
platform_device_register(&balloon3_pcf_leds);
|
||||
}
|
||||
#else
|
||||
static inline void balloon3_leds_init(void) {}
|
||||
|
@ -450,6 +501,34 @@ static void __init balloon3_init_irq(void)
|
|||
"enabled\n", __func__, BALLOON3_AUX_NIRQ);
|
||||
}
|
||||
|
||||
/******************************************************************************
|
||||
* GPIO expander
|
||||
******************************************************************************/
|
||||
#if defined(CONFIG_GPIO_PCF857X) || defined(CONFIG_GPIO_PCF857X_MODULE)
|
||||
static struct pcf857x_platform_data balloon3_pcf857x_pdata = {
|
||||
.gpio_base = BALLOON3_PCF_GPIO_BASE,
|
||||
.n_latch = 0,
|
||||
.setup = NULL,
|
||||
.teardown = NULL,
|
||||
.context = NULL,
|
||||
};
|
||||
|
||||
static struct i2c_board_info __initdata balloon3_i2c_devs[] = {
|
||||
{
|
||||
I2C_BOARD_INFO("pcf8574a", 0x38),
|
||||
.platform_data = &balloon3_pcf857x_pdata,
|
||||
},
|
||||
};
|
||||
|
||||
static void __init balloon3_i2c_init(void)
|
||||
{
|
||||
pxa_set_i2c_info(NULL);
|
||||
i2c_register_board_info(0, ARRAY_AND_SIZE(balloon3_i2c_devs));
|
||||
}
|
||||
#else
|
||||
static inline void balloon3_i2c_init(void) {}
|
||||
#endif
|
||||
|
||||
/******************************************************************************
|
||||
* Machine init
|
||||
******************************************************************************/
|
||||
|
@ -463,8 +542,7 @@ static void __init balloon3_init(void)
|
|||
pxa_set_btuart_info(NULL);
|
||||
pxa_set_stuart_info(NULL);
|
||||
|
||||
pxa_set_i2c_info(NULL);
|
||||
|
||||
balloon3_i2c_init();
|
||||
balloon3_irda_init();
|
||||
balloon3_lcd_init();
|
||||
balloon3_leds_init();
|
||||
|
|
|
@ -69,6 +69,17 @@ enum balloon3_features {
|
|||
|
||||
#define BALLOON3_GPIO_S0_CD (105)
|
||||
|
||||
/* PCF8574A Leds */
|
||||
#define BALLOON3_PCF_GPIO_BASE 160
|
||||
#define BALLOON3_PCF_GPIO_LED0 (BALLOON3_PCF_GPIO_BASE + 0)
|
||||
#define BALLOON3_PCF_GPIO_LED1 (BALLOON3_PCF_GPIO_BASE + 1)
|
||||
#define BALLOON3_PCF_GPIO_LED2 (BALLOON3_PCF_GPIO_BASE + 2)
|
||||
#define BALLOON3_PCF_GPIO_LED3 (BALLOON3_PCF_GPIO_BASE + 3)
|
||||
#define BALLOON3_PCF_GPIO_LED4 (BALLOON3_PCF_GPIO_BASE + 4)
|
||||
#define BALLOON3_PCF_GPIO_LED5 (BALLOON3_PCF_GPIO_BASE + 5)
|
||||
#define BALLOON3_PCF_GPIO_LED6 (BALLOON3_PCF_GPIO_BASE + 6)
|
||||
#define BALLOON3_PCF_GPIO_LED7 (BALLOON3_PCF_GPIO_BASE + 7)
|
||||
|
||||
/* FPGA Interrupt Mask/Acknowledge Register */
|
||||
#define BALLOON3_INT_S0_IRQ (1 << 0) /* PCMCIA 0 IRQ */
|
||||
#define BALLOON3_INT_S0_STSCHG (1 << 1) /* PCMCIA 0 status changed */
|
||||
|
|
Loading…
Reference in a new issue