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-rw-r--r--drivers/mfd/88pm860x-core.c217
-rw-r--r--include/linux/mfd/88pm860x.h151
2 files changed, 356 insertions, 12 deletions
diff --git a/drivers/mfd/88pm860x-core.c b/drivers/mfd/88pm860x-core.c
index 9185f0d945f4..16f0dca707a7 100644
--- a/drivers/mfd/88pm860x-core.c
+++ b/drivers/mfd/88pm860x-core.c
@@ -17,6 +17,100 @@
#include <linux/mfd/core.h>
#include <linux/mfd/88pm860x.h>
+char pm860x_backlight_name[][MFD_NAME_SIZE] = {
+ "backlight-0",
+ "backlight-1",
+ "backlight-2",
+};
+EXPORT_SYMBOL(pm860x_backlight_name);
+
+char pm860x_led_name[][MFD_NAME_SIZE] = {
+ "led0-red",
+ "led0-green",
+ "led0-blue",
+ "led1-red",
+ "led1-green",
+ "led1-blue",
+};
+EXPORT_SYMBOL(pm860x_led_name);
+
+#define PM8606_BACKLIGHT_RESOURCE(_i, _x) \
+{ \
+ .name = pm860x_backlight_name[_i], \
+ .start = PM8606_##_x, \
+ .end = PM8606_##_x, \
+ .flags = IORESOURCE_IO, \
+}
+
+static struct resource backlight_resources[] = {
+ PM8606_BACKLIGHT_RESOURCE(PM8606_BACKLIGHT1, WLED1A),
+ PM8606_BACKLIGHT_RESOURCE(PM8606_BACKLIGHT2, WLED2A),
+ PM8606_BACKLIGHT_RESOURCE(PM8606_BACKLIGHT3, WLED3A),
+};
+
+#define PM8606_BACKLIGHT_DEVS(_i) \
+{ \
+ .name = "88pm860x-backlight", \
+ .num_resources = 1, \
+ .resources = &backlight_resources[_i], \
+ .id = _i, \
+}
+
+static struct mfd_cell backlight_devs[] = {
+ PM8606_BACKLIGHT_DEVS(PM8606_BACKLIGHT1),
+ PM8606_BACKLIGHT_DEVS(PM8606_BACKLIGHT2),
+ PM8606_BACKLIGHT_DEVS(PM8606_BACKLIGHT3),
+};
+
+#define PM8606_LED_RESOURCE(_i, _x) \
+{ \
+ .name = pm860x_led_name[_i], \
+ .start = PM8606_##_x, \
+ .end = PM8606_##_x, \
+ .flags = IORESOURCE_IO, \
+}
+
+static struct resource led_resources[] = {
+ PM8606_LED_RESOURCE(PM8606_LED1_RED, RGB2B),
+ PM8606_LED_RESOURCE(PM8606_LED1_GREEN, RGB2C),
+ PM8606_LED_RESOURCE(PM8606_LED1_BLUE, RGB2D),
+ PM8606_LED_RESOURCE(PM8606_LED2_RED, RGB1B),
+ PM8606_LED_RESOURCE(PM8606_LED2_GREEN, RGB1C),
+ PM8606_LED_RESOURCE(PM8606_LED2_BLUE, RGB1D),
+};
+
+#define PM8606_LED_DEVS(_i) \
+{ \
+ .name = "88pm860x-led", \
+ .num_resources = 1, \
+ .resources = &led_resources[_i], \
+ .id = _i, \
+}
+
+static struct mfd_cell led_devs[] = {
+ PM8606_LED_DEVS(PM8606_LED1_RED),
+ PM8606_LED_DEVS(PM8606_LED1_GREEN),
+ PM8606_LED_DEVS(PM8606_LED1_BLUE),
+ PM8606_LED_DEVS(PM8606_LED2_RED),
+ PM8606_LED_DEVS(PM8606_LED2_GREEN),
+ PM8606_LED_DEVS(PM8606_LED2_BLUE),
+};
+
+static struct resource touch_resources[] = {
+ {
+ .start = PM8607_IRQ_PEN,
+ .end = PM8607_IRQ_PEN,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct mfd_cell touch_devs[] = {
+ {
+ .name = "88pm860x-touch",
+ .num_resources = 1,
+ .resources = &touch_resources[0],
+ },
+};
#define PM8607_REG_RESOURCE(_start, _end) \
{ \
@@ -25,7 +119,7 @@
.flags = IORESOURCE_IO, \
}
-static struct resource pm8607_regulator_resources[] = {
+static struct resource regulator_resources[] = {
PM8607_REG_RESOURCE(BUCK1, BUCK1),
PM8607_REG_RESOURCE(BUCK2, BUCK2),
PM8607_REG_RESOURCE(BUCK3, BUCK3),
@@ -47,10 +141,11 @@ static struct resource pm8607_regulator_resources[] = {
{ \
.name = "88pm8607-" #_name, \
.num_resources = 1, \
- .resources = &pm8607_regulator_resources[PM8607_ID_##_id], \
+ .resources = &regulator_resources[PM8607_ID_##_id], \
+ .id = PM8607_ID_##_id, \
}
-static struct mfd_cell pm8607_devs[] = {
+static struct mfd_cell regulator_devs[] = {
PM8607_REG_DEVS(buck1, BUCK1),
PM8607_REG_DEVS(buck2, BUCK2),
PM8607_REG_DEVS(buck3, BUCK3),
@@ -192,6 +287,61 @@ int pm860x_free_irq(struct pm860x_chip *chip, int irq)
}
EXPORT_SYMBOL(pm860x_free_irq);
+static int __devinit device_gpadc_init(struct pm860x_chip *chip,
+ struct pm860x_platform_data *pdata)
+{
+ struct i2c_client *i2c = (chip->id == CHIP_PM8607) ? chip->client \
+ : chip->companion;
+ int use_gpadc = 0, data, ret;
+
+ /* initialize GPADC without activating it */
+
+ if (pdata && pdata->touch) {
+ /* set GPADC MISC1 register */
+ data = 0;
+ data |= (pdata->touch->gpadc_prebias << 1)
+ & PM8607_GPADC_PREBIAS_MASK;
+ data |= (pdata->touch->slot_cycle << 3)
+ & PM8607_GPADC_SLOT_CYCLE_MASK;
+ data |= (pdata->touch->off_scale << 5)
+ & PM8607_GPADC_OFF_SCALE_MASK;
+ data |= (pdata->touch->sw_cal << 7)
+ & PM8607_GPADC_SW_CAL_MASK;
+ if (data) {
+ ret = pm860x_reg_write(i2c, PM8607_GPADC_MISC1, data);
+ if (ret < 0)
+ goto out;
+ }
+ /* set tsi prebias time */
+ if (pdata->touch->tsi_prebias) {
+ data = pdata->touch->tsi_prebias;
+ ret = pm860x_reg_write(i2c, PM8607_TSI_PREBIAS, data);
+ if (ret < 0)
+ goto out;
+ }
+ /* set prebias & prechg time of pen detect */
+ data = 0;
+ data |= pdata->touch->pen_prebias & PM8607_PD_PREBIAS_MASK;
+ data |= (pdata->touch->pen_prechg << 5)
+ & PM8607_PD_PRECHG_MASK;
+ if (data) {
+ ret = pm860x_reg_write(i2c, PM8607_PD_PREBIAS, data);
+ if (ret < 0)
+ goto out;
+ }
+
+ use_gpadc = 1;
+ }
+
+ /* turn on GPADC */
+ if (use_gpadc) {
+ ret = pm860x_set_bits(i2c, PM8607_GPADC_MISC1,
+ PM8607_GPADC_EN, PM8607_GPADC_EN);
+ }
+out:
+ return ret;
+}
+
static int __devinit device_irq_init(struct pm860x_chip *chip,
struct pm860x_platform_data *pdata)
{
@@ -264,14 +414,40 @@ static void __devinit device_8606_init(struct pm860x_chip *chip,
struct i2c_client *i2c,
struct pm860x_platform_data *pdata)
{
+ int ret;
+
+ if (pdata && pdata->backlight) {
+ ret = mfd_add_devices(chip->dev, 0, &backlight_devs[0],
+ ARRAY_SIZE(backlight_devs),
+ &backlight_resources[0], 0);
+ if (ret < 0) {
+ dev_err(chip->dev, "Failed to add backlight "
+ "subdev\n");
+ goto out_dev;
+ }
+ }
+
+ if (pdata && pdata->led) {
+ ret = mfd_add_devices(chip->dev, 0, &led_devs[0],
+ ARRAY_SIZE(led_devs),
+ &led_resources[0], 0);
+ if (ret < 0) {
+ dev_err(chip->dev, "Failed to add led "
+ "subdev\n");
+ goto out_dev;
+ }
+ }
+ return;
+out_dev:
+ mfd_remove_devices(chip->dev);
+ device_irq_exit(chip);
}
static void __devinit device_8607_init(struct pm860x_chip *chip,
struct i2c_client *i2c,
struct pm860x_platform_data *pdata)
{
- int i, count, data;
- int ret;
+ int data, ret;
ret = pm860x_reg_read(i2c, PM8607_CHIP_ID);
if (ret < 0) {
@@ -311,19 +487,36 @@ static void __devinit device_8607_init(struct pm860x_chip *chip,
goto out;
}
+ ret = device_gpadc_init(chip, pdata);
+ if (ret < 0)
+ goto out;
+
ret = device_irq_init(chip, pdata);
if (ret < 0)
goto out;
- count = ARRAY_SIZE(pm8607_devs);
- for (i = 0; i < count; i++) {
- ret = mfd_add_devices(chip->dev, i, &pm8607_devs[i],
- 1, NULL, 0);
- if (ret != 0) {
- dev_err(chip->dev, "Failed to add subdevs\n");
- goto out;
+ ret = mfd_add_devices(chip->dev, 0, &regulator_devs[0],
+ ARRAY_SIZE(regulator_devs),
+ &regulator_resources[0], 0);
+ if (ret < 0) {
+ dev_err(chip->dev, "Failed to add regulator subdev\n");
+ goto out_dev;
+ }
+
+ if (pdata && pdata->touch) {
+ ret = mfd_add_devices(chip->dev, 0, &touch_devs[0],
+ ARRAY_SIZE(touch_devs),
+ &touch_resources[0], 0);
+ if (ret < 0) {
+ dev_err(chip->dev, "Failed to add touch "
+ "subdev\n");
+ goto out_dev;
}
}
+ return;
+out_dev:
+ mfd_remove_devices(chip->dev);
+ device_irq_exit(chip);
out:
return;
}
diff --git a/include/linux/mfd/88pm860x.h b/include/linux/mfd/88pm860x.h
index b4d6018ba0d6..d7edf11784f5 100644
--- a/include/linux/mfd/88pm860x.h
+++ b/include/linux/mfd/88pm860x.h
@@ -14,6 +14,8 @@
#include <linux/interrupt.h>
+#define MFD_NAME_SIZE (40)
+
enum {
CHIP_INVALID = 0,
CHIP_PM8606,
@@ -22,6 +24,99 @@ enum {
};
enum {
+ PM8606_ID_INVALID,
+ PM8606_ID_BACKLIGHT,
+ PM8606_ID_LED,
+ PM8606_ID_VIBRATOR,
+ PM8606_ID_TOUCH,
+ PM8606_ID_SOUND,
+ PM8606_ID_CHARGER,
+ PM8606_ID_MAX,
+};
+
+enum {
+ PM8606_BACKLIGHT1 = 0,
+ PM8606_BACKLIGHT2,
+ PM8606_BACKLIGHT3,
+};
+
+enum {
+ PM8606_LED1_RED = 0,
+ PM8606_LED1_GREEN,
+ PM8606_LED1_BLUE,
+ PM8606_LED2_RED,
+ PM8606_LED2_GREEN,
+ PM8606_LED2_BLUE,
+ PM8607_LED_VIBRATOR,
+};
+
+
+/* 8606 Registers */
+#define PM8606_DCM_BOOST (0x00)
+#define PM8606_PWM (0x01)
+
+/* Backlight Registers */
+#define PM8606_WLED1A (0x02)
+#define PM8606_WLED1B (0x03)
+#define PM8606_WLED2A (0x04)
+#define PM8606_WLED2B (0x05)
+#define PM8606_WLED3A (0x06)
+#define PM8606_WLED3B (0x07)
+
+/* LED Registers */
+#define PM8606_RGB2A (0x08)
+#define PM8606_RGB2B (0x09)
+#define PM8606_RGB2C (0x0A)
+#define PM8606_RGB2D (0x0B)
+#define PM8606_RGB1A (0x0C)
+#define PM8606_RGB1B (0x0D)
+#define PM8606_RGB1C (0x0E)
+#define PM8606_RGB1D (0x0F)
+
+#define PM8606_PREREGULATORA (0x10)
+#define PM8606_PREREGULATORB (0x11)
+#define PM8606_VIBRATORA (0x12)
+#define PM8606_VIBRATORB (0x13)
+#define PM8606_VCHG (0x14)
+#define PM8606_VSYS (0x15)
+#define PM8606_MISC (0x16)
+#define PM8606_CHIP_ID (0x17)
+#define PM8606_STATUS (0x18)
+#define PM8606_FLAGS (0x19)
+#define PM8606_PROTECTA (0x1A)
+#define PM8606_PROTECTB (0x1B)
+#define PM8606_PROTECTC (0x1C)
+
+/* Bit definitions of PM8606 registers */
+#define PM8606_DCM_500MA (0x0) /* current limit */
+#define PM8606_DCM_750MA (0x1)
+#define PM8606_DCM_1000MA (0x2)
+#define PM8606_DCM_1250MA (0x3)
+#define PM8606_DCM_250MV (0x0 << 2)
+#define PM8606_DCM_300MV (0x1 << 2)
+#define PM8606_DCM_350MV (0x2 << 2)
+#define PM8606_DCM_400MV (0x3 << 2)
+
+#define PM8606_PWM_31200HZ (0x0)
+#define PM8606_PWM_15600HZ (0x1)
+#define PM8606_PWM_7800HZ (0x2)
+#define PM8606_PWM_3900HZ (0x3)
+#define PM8606_PWM_1950HZ (0x4)
+#define PM8606_PWM_976HZ (0x5)
+#define PM8606_PWM_488HZ (0x6)
+#define PM8606_PWM_244HZ (0x7)
+#define PM8606_PWM_FREQ_MASK (0x7)
+
+#define PM8606_WLED_ON (1 << 0)
+#define PM8606_WLED_CURRENT(x) ((x & 0x1F) << 1)
+
+#define PM8606_LED_CURRENT(x) (((x >> 2) & 0x07) << 5)
+
+#define PM8606_VSYS_EN (1 << 1)
+
+#define PM8606_MISC_OSC_EN (1 << 4)
+
+enum {
PM8607_ID_BUCK1 = 0,
PM8607_ID_BUCK2,
PM8607_ID_BUCK3,
@@ -91,6 +186,21 @@ enum {
#define PM8607_SUPPLIES_EN21 (0x33)
#define PM8607_SUPPLIES_EN22 (0x34)
+/* Vibrator Control Registers */
+#define PM8607_VIBRATOR_SET (0x28)
+#define PM8607_VIBRATOR_PWM (0x29)
+
+/* GPADC Registers */
+#define PM8607_GP_BIAS1 (0x4F)
+#define PM8607_MEAS_EN1 (0x50)
+#define PM8607_MEAS_EN2 (0x51)
+#define PM8607_MEAS_EN3 (0x52)
+#define PM8607_MEAS_OFF_TIME1 (0x53)
+#define PM8607_MEAS_OFF_TIME2 (0x54)
+#define PM8607_TSI_PREBIAS (0x55) /* prebias time */
+#define PM8607_PD_PREBIAS (0x56) /* prebias time */
+#define PM8607_GPADC_MISC1 (0x57)
+
/* RTC Control Registers */
#define PM8607_RTC1 (0xA0)
#define PM8607_RTC_COUNTER1 (0xA1)
@@ -140,6 +250,16 @@ enum {
#define PM8607_B0_MISC1_PI2C (1 << 3)
#define PM8607_B0_MISC1_RESET (1 << 6)
+/* bits definitions of GPADC */
+#define PM8607_GPADC_EN (1 << 0)
+#define PM8607_GPADC_PREBIAS_MASK (3 << 1)
+#define PM8607_GPADC_SLOT_CYCLE_MASK (3 << 3) /* slow mode */
+#define PM8607_GPADC_OFF_SCALE_MASK (3 << 5) /* GP sleep mode */
+#define PM8607_GPADC_SW_CAL_MASK (1 << 7)
+
+#define PM8607_PD_PREBIAS_MASK (0x1F << 0)
+#define PM8607_PD_PRECHG_MASK (7 << 5)
+
/* Interrupt Number in 88PM8607 */
enum {
PM8607_IRQ_ONKEY = 0,
@@ -202,13 +322,44 @@ enum {
PI2C_PORT,
};
+struct pm860x_backlight_pdata {
+ int id;
+ int pwm;
+ int iset;
+ unsigned long flags;
+};
+
+struct pm860x_led_pdata {
+ int id;
+ int iset;
+ unsigned long flags;
+};
+
+struct pm860x_touch_pdata {
+ int gpadc_prebias;
+ int slot_cycle;
+ int off_scale;
+ int sw_cal;
+ int tsi_prebias; /* time, slot */
+ int pen_prebias; /* time, slot */
+ int pen_prechg; /* time, slot */
+ unsigned long flags;
+};
+
struct pm860x_platform_data {
+ struct pm860x_backlight_pdata *backlight;
+ struct pm860x_led_pdata *led;
+ struct pm860x_touch_pdata *touch;
+
unsigned short companion_addr; /* I2C address of companion chip */
int i2c_port; /* Controlled by GI2C or PI2C */
int irq_mode; /* Clear interrupt by read/write(0/1) */
struct regulator_init_data *regulator[PM8607_MAX_REGULATOR];
};
+extern char pm860x_backlight_name[][MFD_NAME_SIZE];
+extern char pm860x_led_name[][MFD_NAME_SIZE];
+
extern int pm860x_reg_read(struct i2c_client *, int);
extern int pm860x_reg_write(struct i2c_client *, int, unsigned char);
extern int pm860x_bulk_read(struct i2c_client *, int, int, unsigned char *);
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.