#include <linux/mfd/wm831x/pdata.h>
#include <linux/mfd/wm831x/irq.h>
#include <linux/mfd/wm831x/auxadc.h>
+#include <linux/mfd/wm831x/otp.h>
+#include <linux/mfd/wm831x/regulator.h>
+
+/* Current settings - values are 2*2^(reg_val/4) microamps. These are
+ * exported since they are used by multiple drivers.
+ */
+int wm831x_isinkv_values[WM831X_ISINK_MAX_ISEL + 1] = {
+ 2,
+ 2,
+ 3,
+ 3,
+ 4,
+ 5,
+ 6,
+ 7,
+ 8,
+ 10,
+ 11,
+ 13,
+ 16,
+ 19,
+ 23,
+ 27,
+ 32,
+ 38,
+ 45,
+ 54,
+ 64,
+ 76,
+ 91,
+ 108,
+ 128,
+ 152,
+ 181,
+ 215,
+ 256,
+ 304,
+ 362,
+ 431,
+ 512,
+ 609,
+ 724,
+ 861,
+ 1024,
+ 1218,
+ 1448,
+ 1722,
+ 2048,
+ 2435,
+ 2896,
+ 3444,
+ 4096,
+ 4871,
+ 5793,
+ 6889,
+ 8192,
+ 9742,
+ 11585,
+ 13777,
+ 16384,
+ 19484,
+ 23170,
+ 27554,
+};
+EXPORT_SYMBOL_GPL(wm831x_isinkv_values);
enum wm831x_parent {
- WM8310 = 0,
- WM8311 = 1,
- WM8312 = 2,
+ WM8310 = 0x8310,
+ WM8311 = 0x8311,
+ WM8312 = 0x8312,
+ WM8320 = 0x8320,
};
static int wm831x_reg_locked(struct wm831x *wm831x, unsigned short reg)
*/
int wm831x_auxadc_read(struct wm831x *wm831x, enum wm831x_auxadc input)
{
- int tries = 10;
int ret, src;
mutex_lock(&wm831x->auxadc_lock);
goto disable;
}
- do {
- msleep(1);
+ /* Ignore the result to allow us to soldier on without IRQ hookup */
+ wait_for_completion_timeout(&wm831x->auxadc_done, msecs_to_jiffies(5));
- ret = wm831x_reg_read(wm831x, WM831X_AUXADC_CONTROL);
- if (ret < 0)
- ret = WM831X_AUX_CVT_ENA;
- } while ((ret & WM831X_AUX_CVT_ENA) && --tries);
+ ret = wm831x_reg_read(wm831x, WM831X_AUXADC_CONTROL);
+ if (ret < 0) {
+ dev_err(wm831x->dev, "AUXADC status read failed: %d\n", ret);
+ goto disable;
+ }
if (ret & WM831X_AUX_CVT_ENA) {
dev_err(wm831x->dev, "Timed out reading AUXADC\n");
}
EXPORT_SYMBOL_GPL(wm831x_auxadc_read);
+static irqreturn_t wm831x_auxadc_irq(int irq, void *irq_data)
+{
+ struct wm831x *wm831x = irq_data;
+
+ complete(&wm831x->auxadc_done);
+
+ return IRQ_HANDLED;
+}
+
/**
* wm831x_auxadc_read_uv: Read a voltage from the WM831x AUXADC
*
},
};
+static struct resource wm8320_dcdc4_buck_resources[] = {
+ {
+ .start = WM831X_DC4_CONTROL,
+ .end = WM832X_DC4_SLEEP_CONTROL,
+ .flags = IORESOURCE_IO,
+ },
+ {
+ .name = "UV",
+ .start = WM831X_IRQ_UV_DC4,
+ .end = WM831X_IRQ_UV_DC4,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
static struct resource wm831x_gpio_resources[] = {
{
.start = WM831X_IRQ_GPIO_1,
static struct mfd_cell wm8310_devs[] = {
{
+ .name = "wm831x-backup",
+ },
+ {
.name = "wm831x-buckv",
.id = 1,
.num_resources = ARRAY_SIZE(wm831x_dcdc1_resources),
static struct mfd_cell wm8311_devs[] = {
{
+ .name = "wm831x-backup",
+ },
+ {
.name = "wm831x-buckv",
.id = 1,
.num_resources = ARRAY_SIZE(wm831x_dcdc1_resources),
static struct mfd_cell wm8312_devs[] = {
{
+ .name = "wm831x-backup",
+ },
+ {
.name = "wm831x-buckv",
.id = 1,
.num_resources = ARRAY_SIZE(wm831x_dcdc1_resources),
},
};
+static struct mfd_cell wm8320_devs[] = {
+ {
+ .name = "wm831x-backup",
+ },
+ {
+ .name = "wm831x-buckv",
+ .id = 1,
+ .num_resources = ARRAY_SIZE(wm831x_dcdc1_resources),
+ .resources = wm831x_dcdc1_resources,
+ },
+ {
+ .name = "wm831x-buckv",
+ .id = 2,
+ .num_resources = ARRAY_SIZE(wm831x_dcdc2_resources),
+ .resources = wm831x_dcdc2_resources,
+ },
+ {
+ .name = "wm831x-buckp",
+ .id = 3,
+ .num_resources = ARRAY_SIZE(wm831x_dcdc3_resources),
+ .resources = wm831x_dcdc3_resources,
+ },
+ {
+ .name = "wm831x-buckp",
+ .id = 4,
+ .num_resources = ARRAY_SIZE(wm8320_dcdc4_buck_resources),
+ .resources = wm8320_dcdc4_buck_resources,
+ },
+ {
+ .name = "wm831x-gpio",
+ .num_resources = ARRAY_SIZE(wm831x_gpio_resources),
+ .resources = wm831x_gpio_resources,
+ },
+ {
+ .name = "wm831x-hwmon",
+ },
+ {
+ .name = "wm831x-ldo",
+ .id = 1,
+ .num_resources = ARRAY_SIZE(wm831x_ldo1_resources),
+ .resources = wm831x_ldo1_resources,
+ },
+ {
+ .name = "wm831x-ldo",
+ .id = 2,
+ .num_resources = ARRAY_SIZE(wm831x_ldo2_resources),
+ .resources = wm831x_ldo2_resources,
+ },
+ {
+ .name = "wm831x-ldo",
+ .id = 3,
+ .num_resources = ARRAY_SIZE(wm831x_ldo3_resources),
+ .resources = wm831x_ldo3_resources,
+ },
+ {
+ .name = "wm831x-ldo",
+ .id = 4,
+ .num_resources = ARRAY_SIZE(wm831x_ldo4_resources),
+ .resources = wm831x_ldo4_resources,
+ },
+ {
+ .name = "wm831x-ldo",
+ .id = 5,
+ .num_resources = ARRAY_SIZE(wm831x_ldo5_resources),
+ .resources = wm831x_ldo5_resources,
+ },
+ {
+ .name = "wm831x-ldo",
+ .id = 6,
+ .num_resources = ARRAY_SIZE(wm831x_ldo6_resources),
+ .resources = wm831x_ldo6_resources,
+ },
+ {
+ .name = "wm831x-aldo",
+ .id = 7,
+ .num_resources = ARRAY_SIZE(wm831x_ldo7_resources),
+ .resources = wm831x_ldo7_resources,
+ },
+ {
+ .name = "wm831x-aldo",
+ .id = 8,
+ .num_resources = ARRAY_SIZE(wm831x_ldo8_resources),
+ .resources = wm831x_ldo8_resources,
+ },
+ {
+ .name = "wm831x-aldo",
+ .id = 9,
+ .num_resources = ARRAY_SIZE(wm831x_ldo9_resources),
+ .resources = wm831x_ldo9_resources,
+ },
+ {
+ .name = "wm831x-aldo",
+ .id = 10,
+ .num_resources = ARRAY_SIZE(wm831x_ldo10_resources),
+ .resources = wm831x_ldo10_resources,
+ },
+ {
+ .name = "wm831x-alive-ldo",
+ .id = 11,
+ .num_resources = ARRAY_SIZE(wm831x_ldo11_resources),
+ .resources = wm831x_ldo11_resources,
+ },
+ {
+ .name = "wm831x-on",
+ .num_resources = ARRAY_SIZE(wm831x_on_resources),
+ .resources = wm831x_on_resources,
+ },
+ {
+ .name = "wm831x-rtc",
+ .num_resources = ARRAY_SIZE(wm831x_rtc_resources),
+ .resources = wm831x_rtc_resources,
+ },
+ {
+ .name = "wm831x-status",
+ .id = 1,
+ .num_resources = ARRAY_SIZE(wm831x_status1_resources),
+ .resources = wm831x_status1_resources,
+ },
+ {
+ .name = "wm831x-status",
+ .id = 2,
+ .num_resources = ARRAY_SIZE(wm831x_status2_resources),
+ .resources = wm831x_status2_resources,
+ },
+ {
+ .name = "wm831x-watchdog",
+ .num_resources = ARRAY_SIZE(wm831x_wdt_resources),
+ .resources = wm831x_wdt_resources,
+ },
+};
+
+static struct mfd_cell backlight_devs[] = {
+ {
+ .name = "wm831x-backlight",
+ },
+};
+
/*
* Instantiate the generic non-control parts of the device.
*/
mutex_init(&wm831x->io_lock);
mutex_init(&wm831x->key_lock);
mutex_init(&wm831x->auxadc_lock);
+ init_completion(&wm831x->auxadc_done);
dev_set_drvdata(wm831x->dev, wm831x);
ret = wm831x_reg_read(wm831x, WM831X_PARENT_ID);
goto err;
}
+ /* Some engineering samples do not have the ID set, rely on
+ * the device being registered correctly.
+ */
+ if (ret == 0) {
+ dev_info(wm831x->dev, "Device is an engineering sample\n");
+ ret = id;
+ }
+
switch (ret) {
- case 0x8310:
+ case WM8310:
parent = WM8310;
- switch (rev) {
- case 0:
- dev_info(wm831x->dev, "WM8310 revision %c\n",
- 'A' + rev);
- break;
+ wm831x->num_gpio = 16;
+ if (rev > 0) {
+ wm831x->has_gpio_ena = 1;
+ wm831x->has_cs_sts = 1;
}
+
+ dev_info(wm831x->dev, "WM8310 revision %c\n", 'A' + rev);
break;
- case 0x8311:
+ case WM8311:
parent = WM8311;
- switch (rev) {
- case 0:
- dev_info(wm831x->dev, "WM8311 revision %c\n",
- 'A' + rev);
- break;
+ wm831x->num_gpio = 16;
+ if (rev > 0) {
+ wm831x->has_gpio_ena = 1;
+ wm831x->has_cs_sts = 1;
}
+
+ dev_info(wm831x->dev, "WM8311 revision %c\n", 'A' + rev);
break;
- case 0x8312:
+ case WM8312:
parent = WM8312;
- switch (rev) {
- case 0:
- dev_info(wm831x->dev, "WM8312 revision %c\n",
- 'A' + rev);
- break;
+ wm831x->num_gpio = 16;
+ if (rev > 0) {
+ wm831x->has_gpio_ena = 1;
+ wm831x->has_cs_sts = 1;
}
+
+ dev_info(wm831x->dev, "WM8312 revision %c\n", 'A' + rev);
break;
- case 0:
- /* Some engineering samples do not have the ID set,
- * rely on the device being registered correctly.
- * This will need revisiting for future devices with
- * multiple dies.
- */
- parent = id;
- switch (rev) {
- case 0:
- dev_info(wm831x->dev, "WM831%d ES revision %c\n",
- parent, 'A' + rev);
- break;
- }
+ case WM8320:
+ parent = WM8320;
+ wm831x->num_gpio = 12;
+ dev_info(wm831x->dev, "WM8320 revision %c\n", 'A' + rev);
break;
default:
* current parts.
*/
if (parent != id)
- dev_warn(wm831x->dev, "Device was registered as a WM831%lu\n",
+ dev_warn(wm831x->dev, "Device was registered as a WM%lx\n",
id);
/* Bootstrap the user key */
if (ret != 0)
goto err;
+ if (wm831x->irq_base) {
+ ret = request_threaded_irq(wm831x->irq_base +
+ WM831X_IRQ_AUXADC_DATA,
+ NULL, wm831x_auxadc_irq, 0,
+ "auxadc", wm831x);
+ if (ret < 0)
+ dev_err(wm831x->dev, "AUXADC IRQ request failed: %d\n",
+ ret);
+ }
+
/* The core device is up, instantiate the subdevices. */
switch (parent) {
case WM8310:
ret = mfd_add_devices(wm831x->dev, -1,
wm8310_devs, ARRAY_SIZE(wm8310_devs),
- NULL, 0);
+ NULL, wm831x->irq_base);
break;
case WM8311:
ret = mfd_add_devices(wm831x->dev, -1,
wm8311_devs, ARRAY_SIZE(wm8311_devs),
- NULL, 0);
+ NULL, wm831x->irq_base);
break;
case WM8312:
ret = mfd_add_devices(wm831x->dev, -1,
wm8312_devs, ARRAY_SIZE(wm8312_devs),
+ NULL, wm831x->irq_base);
+ break;
+
+ case WM8320:
+ ret = mfd_add_devices(wm831x->dev, -1,
+ wm8320_devs, ARRAY_SIZE(wm8320_devs),
NULL, 0);
break;
goto err_irq;
}
+ if (pdata && pdata->backlight) {
+ /* Treat errors as non-critical */
+ ret = mfd_add_devices(wm831x->dev, -1, backlight_devs,
+ ARRAY_SIZE(backlight_devs), NULL,
+ wm831x->irq_base);
+ if (ret < 0)
+ dev_err(wm831x->dev, "Failed to add backlight: %d\n",
+ ret);
+ }
+
+ wm831x_otp_init(wm831x);
+
if (pdata && pdata->post_init) {
ret = pdata->post_init(wm831x);
if (ret != 0) {
static void wm831x_device_exit(struct wm831x *wm831x)
{
+ wm831x_otp_exit(wm831x);
mfd_remove_devices(wm831x->dev);
+ if (wm831x->irq_base)
+ free_irq(wm831x->irq_base + WM831X_IRQ_AUXADC_DATA, wm831x);
wm831x_irq_exit(wm831x);
kfree(wm831x);
}
{ "wm8310", WM8310 },
{ "wm8311", WM8311 },
{ "wm8312", WM8312 },
+ { "wm8320", WM8320 },
{ }
};
MODULE_DEVICE_TABLE(i2c, wm831x_i2c_id);
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff