#include <linux/clk.h>
#include <linux/err.h>
+#include <linux/regulator/machine.h>
+
#include <linux/i2c.h>
#include <linux/i2c/twl4030.h>
#define twl_has_gpio() false
#endif
+#if defined(CONFIG_REGULATOR_TWL4030) \
+ || defined(CONFIG_REGULATOR_TWL4030_MODULE)
+#define twl_has_regulator() true
+#else
+#define twl_has_regulator() false
+#endif
+
#if defined(CONFIG_TWL4030_MADC) || defined(CONFIG_TWL4030_MADC_MODULE)
#define twl_has_madc() true
#else
#define twl_has_madc() false
#endif
+#ifdef CONFIG_TWL4030_POWER
+#define twl_has_power() true
+#else
+#define twl_has_power() false
+#endif
+
#if defined(CONFIG_RTC_DRV_TWL4030) || defined(CONFIG_RTC_DRV_TWL4030_MODULE)
#define twl_has_rtc() true
#else
#define twl_has_usb() false
#endif
+#if defined(CONFIG_LEDS_TWL4030_VIBRA) || \
+ defined(CONFIG_LEDS_TWL4030_VIBRA_MODULE)
+#define twl_has_vibra() true
+#else
+#define twl_has_vibra() false
+#endif
+
+#if defined(CONFIG_TWL4030_WATCHDOG) || \
+ defined(CONFIG_TWL4030_WATCHDOG_MODULE)
+#define twl_has_watchdog() true
+#else
+#define twl_has_watchdog() false
+#endif
/* Triton Core internal information (BEGIN) */
#define HIGH_PERF_SQ (1 << 3)
+/* chip-specific feature flags, for i2c_device_id.driver_data */
+#define TWL4030_VAUX2 BIT(0) /* pre-5030 voltage ranges */
+#define TPS_SUBSET BIT(1) /* tps659[23]0 have fewer LDOs */
+
/*----------------------------------------------------------------------*/
/* is driver active, bound to a chip? */
{ 3, TWL4030_BASEADD_SECURED_REG },
};
+extern void twl4030_power_init(struct twl4030_power_data *triton2_scripts);
+
/*----------------------------------------------------------------------*/
/* Exported Functions */
*
* Returns the result of operation - 0 is success
*/
-int twl4030_i2c_write(u8 mod_no, u8 *value, u8 reg, u8 num_bytes)
+int twl4030_i2c_write(u8 mod_no, u8 *value, u8 reg, unsigned num_bytes)
{
int ret;
int sid;
*
* Returns result of operation - num_bytes is success else failure.
*/
-int twl4030_i2c_read(u8 mod_no, u8 *value, u8 reg, u8 num_bytes)
+int twl4030_i2c_read(u8 mod_no, u8 *value, u8 reg, unsigned num_bytes)
{
int ret;
u8 val;
int twl4030_i2c_write_u8(u8 mod_no, u8 value, u8 reg)
{
- /* 2 bytes offset 1 contains the data offset 0 is used by i2c_write */
+ /* 2 bytes: offset 1 contains the data, offset 0 is used by i2c_write */
u8 temp_buffer[2] = { 0 };
/* offset 1 contains the data */
temp_buffer[1] = value;
/*----------------------------------------------------------------------*/
-/*
- * NOTE: We know the first 8 IRQs after pdata->base_irq are
- * for the PIH, and the next are for the PWR_INT SIH, since
- * that's how twl_init_irq() sets things up.
- */
-
-static int add_children(struct twl4030_platform_data *pdata)
+static struct device *
+add_numbered_child(unsigned chip, const char *name, int num,
+ void *pdata, unsigned pdata_len,
+ bool can_wakeup, int irq0, int irq1)
{
- struct platform_device *pdev = NULL;
- struct twl4030_client *twl = NULL;
- int status = 0;
+ struct platform_device *pdev;
+ struct twl4030_client *twl = &twl4030_modules[chip];
+ int status;
+
+ pdev = platform_device_alloc(name, num);
+ if (!pdev) {
+ dev_dbg(&twl->client->dev, "can't alloc dev\n");
+ status = -ENOMEM;
+ goto err;
+ }
- if (twl_has_bci() && pdata->bci) {
- twl = &twl4030_modules[3];
+ device_init_wakeup(&pdev->dev, can_wakeup);
+ pdev->dev.parent = &twl->client->dev;
- pdev = platform_device_alloc("twl4030_bci", -1);
- if (!pdev) {
- pr_debug("%s: can't alloc bci dev\n", DRIVER_NAME);
- status = -ENOMEM;
+ if (pdata) {
+ status = platform_device_add_data(pdev, pdata, pdata_len);
+ if (status < 0) {
+ dev_dbg(&pdev->dev, "can't add platform_data\n");
goto err;
}
+ }
- if (status == 0) {
- pdev->dev.parent = &twl->client->dev;
- status = platform_device_add_data(pdev, pdata->bci,
- sizeof(*pdata->bci));
- if (status < 0) {
- dev_dbg(&twl->client->dev,
- "can't add bci data, %d\n",
- status);
- goto err;
- }
- }
-
- if (status == 0) {
- struct resource r = {
- .start = pdata->irq_base + 8 + 1,
- .flags = IORESOURCE_IRQ,
- };
-
- status = platform_device_add_resources(pdev, &r, 1);
- }
-
- if (status == 0)
- status = platform_device_add(pdev);
+ if (irq0) {
+ struct resource r[2] = {
+ { .start = irq0, .flags = IORESOURCE_IRQ, },
+ { .start = irq1, .flags = IORESOURCE_IRQ, },
+ };
+ status = platform_device_add_resources(pdev, r, irq1 ? 2 : 1);
if (status < 0) {
- platform_device_put(pdev);
- dev_dbg(&twl->client->dev,
- "can't create bci dev, %d\n",
- status);
+ dev_dbg(&pdev->dev, "can't add irqs\n");
goto err;
}
}
- if (twl_has_gpio() && pdata->gpio) {
- twl = &twl4030_modules[1];
+ status = platform_device_add(pdev);
- pdev = platform_device_alloc("twl4030_gpio", -1);
- if (!pdev) {
- pr_debug("%s: can't alloc gpio dev\n", DRIVER_NAME);
- status = -ENOMEM;
- goto err;
- }
+err:
+ if (status < 0) {
+ platform_device_put(pdev);
+ dev_err(&twl->client->dev, "can't add %s dev\n", name);
+ return ERR_PTR(status);
+ }
+ return &pdev->dev;
+}
- /* more driver model init */
- if (status == 0) {
- pdev->dev.parent = &twl->client->dev;
- /* device_init_wakeup(&pdev->dev, 1); */
-
- status = platform_device_add_data(pdev, pdata->gpio,
- sizeof(*pdata->gpio));
- if (status < 0) {
- dev_dbg(&twl->client->dev,
- "can't add gpio data, %d\n",
- status);
- goto err;
- }
- }
+static inline struct device *add_child(unsigned chip, const char *name,
+ void *pdata, unsigned pdata_len,
+ bool can_wakeup, int irq0, int irq1)
+{
+ return add_numbered_child(chip, name, -1, pdata, pdata_len,
+ can_wakeup, irq0, irq1);
+}
+
+static struct device *
+add_regulator_linked(int num, struct regulator_init_data *pdata,
+ struct regulator_consumer_supply *consumers,
+ unsigned num_consumers)
+{
+ /* regulator framework demands init_data ... */
+ if (!pdata)
+ return NULL;
- /* GPIO module IRQ */
- if (status == 0) {
- struct resource r = {
- .start = pdata->irq_base + 0,
- .flags = IORESOURCE_IRQ,
- };
+ if (consumers) {
+ pdata->consumer_supplies = consumers;
+ pdata->num_consumer_supplies = num_consumers;
+ }
- status = platform_device_add_resources(pdev, &r, 1);
- }
+ /* NOTE: we currently ignore regulator IRQs, e.g. for short circuits */
+ return add_numbered_child(3, "twl4030_reg", num,
+ pdata, sizeof(*pdata), false, 0, 0);
+}
- if (status == 0)
- status = platform_device_add(pdev);
+static struct device *
+add_regulator(int num, struct regulator_init_data *pdata)
+{
+ return add_regulator_linked(num, pdata, NULL, 0);
+}
- if (status < 0) {
- platform_device_put(pdev);
- dev_dbg(&twl->client->dev,
- "can't create gpio dev, %d\n",
- status);
- goto err;
- }
+/*
+ * NOTE: We know the first 8 IRQs after pdata->base_irq are
+ * for the PIH, and the next are for the PWR_INT SIH, since
+ * that's how twl_init_irq() sets things up.
+ */
+
+static int
+add_children(struct twl4030_platform_data *pdata, unsigned long features)
+{
+ struct device *child;
+ struct device *usb_transceiver = NULL;
+
+ if (twl_has_bci() && pdata->bci && !(features & TPS_SUBSET)) {
+ child = add_child(3, "twl4030_bci",
+ pdata->bci, sizeof(*pdata->bci),
+ false,
+ /* irq0 = CHG_PRES, irq1 = BCI */
+ pdata->irq_base + 8 + 1, pdata->irq_base + 2);
+ if (IS_ERR(child))
+ return PTR_ERR(child);
+ }
+
+ if (twl_has_gpio() && pdata->gpio) {
+ child = add_child(1, "twl4030_gpio",
+ pdata->gpio, sizeof(*pdata->gpio),
+ false, pdata->irq_base + 0, 0);
+ if (IS_ERR(child))
+ return PTR_ERR(child);
}
if (twl_has_keypad() && pdata->keypad) {
- pdev = platform_device_alloc("twl4030_keypad", -1);
- if (pdev) {
- twl = &twl4030_modules[2];
- pdev->dev.parent = &twl->client->dev;
- device_init_wakeup(&pdev->dev, 1);
- status = platform_device_add_data(pdev, pdata->keypad,
- sizeof(*pdata->keypad));
- if (status < 0) {
- dev_dbg(&twl->client->dev,
- "can't add keypad data, %d\n",
- status);
- platform_device_put(pdev);
- goto err;
- }
- status = platform_device_add(pdev);
- if (status < 0) {
- platform_device_put(pdev);
- dev_dbg(&twl->client->dev,
- "can't create keypad dev, %d\n",
- status);
- goto err;
- }
- } else {
- pr_debug("%s: can't alloc keypad dev\n", DRIVER_NAME);
- status = -ENOMEM;
- goto err;
- }
+ child = add_child(2, "twl4030_keypad",
+ pdata->keypad, sizeof(*pdata->keypad),
+ true, pdata->irq_base + 1, 0);
+ if (IS_ERR(child))
+ return PTR_ERR(child);
}
if (twl_has_madc() && pdata->madc) {
- pdev = platform_device_alloc("twl4030_madc", -1);
- if (pdev) {
- twl = &twl4030_modules[2];
- pdev->dev.parent = &twl->client->dev;
- device_init_wakeup(&pdev->dev, 1);
- status = platform_device_add_data(pdev, pdata->madc,
- sizeof(*pdata->madc));
- if (status < 0) {
- platform_device_put(pdev);
- dev_dbg(&twl->client->dev,
- "can't add madc data, %d\n",
- status);
- goto err;
- }
- status = platform_device_add(pdev);
- if (status < 0) {
- platform_device_put(pdev);
- dev_dbg(&twl->client->dev,
- "can't create madc dev, %d\n",
- status);
- goto err;
- }
- } else {
- pr_debug("%s: can't alloc madc dev\n", DRIVER_NAME);
- status = -ENOMEM;
- goto err;
- }
+ child = add_child(2, "twl4030_madc",
+ pdata->madc, sizeof(*pdata->madc),
+ true, pdata->irq_base + 3, 0);
+ if (IS_ERR(child))
+ return PTR_ERR(child);
}
if (twl_has_rtc()) {
- twl = &twl4030_modules[3];
-
- pdev = platform_device_alloc("twl4030_rtc", -1);
- if (!pdev) {
- pr_debug("%s: can't alloc rtc dev\n", DRIVER_NAME);
- status = -ENOMEM;
- } else {
- pdev->dev.parent = &twl->client->dev;
- device_init_wakeup(&pdev->dev, 1);
- }
-
/*
- * REVISIT platform_data here currently might use of
+ * REVISIT platform_data here currently might expose the
* "msecure" line ... but for now we just expect board
- * setup to tell the chip "we are secure" at all times.
+ * setup to tell the chip "it's always ok to SET_TIME".
* Eventually, Linux might become more aware of such
* HW security concerns, and "least privilege".
*/
-
- /* RTC module IRQ */
- if (status == 0) {
- struct resource r = {
- .start = pdata->irq_base + 8 + 3,
- .flags = IORESOURCE_IRQ,
- };
-
- status = platform_device_add_resources(pdev, &r, 1);
- }
-
- if (status == 0)
- status = platform_device_add(pdev);
-
- if (status < 0) {
- platform_device_put(pdev);
- dev_dbg(&twl->client->dev,
- "can't create rtc dev, %d\n",
- status);
- goto err;
- }
+ child = add_child(3, "twl4030_rtc",
+ NULL, 0,
+ true, pdata->irq_base + 8 + 3, 0);
+ if (IS_ERR(child))
+ return PTR_ERR(child);
}
if (twl_has_usb() && pdata->usb) {
- twl = &twl4030_modules[0];
-
- pdev = platform_device_alloc("twl4030_usb", -1);
- if (!pdev) {
- pr_debug("%s: can't alloc usb dev\n", DRIVER_NAME);
- status = -ENOMEM;
- goto err;
- }
+ child = add_child(0, "twl4030_usb",
+ pdata->usb, sizeof(*pdata->usb),
+ true,
+ /* irq0 = USB_PRES, irq1 = USB */
+ pdata->irq_base + 8 + 2, pdata->irq_base + 4);
+ if (IS_ERR(child))
+ return PTR_ERR(child);
+
+ /* we need to connect regulators to this transceiver */
+ usb_transceiver = child;
+ }
- if (status == 0) {
- pdev->dev.parent = &twl->client->dev;
- device_init_wakeup(&pdev->dev, 1);
- status = platform_device_add_data(pdev, pdata->usb,
- sizeof(*pdata->usb));
- if (status < 0) {
- platform_device_put(pdev);
- dev_dbg(&twl->client->dev,
- "can't add usb data, %d\n",
- status);
- goto err;
- }
- }
+ if (twl_has_vibra()) {
+ child = add_child(0, "twl4030_vibra", NULL, 0, true, 0, 0);
+ if (IS_ERR(child))
+ return PTR_ERR(child);
+ }
- if (status == 0) {
- struct resource r = {
- .start = pdata->irq_base + 8 + 2,
- .flags = IORESOURCE_IRQ,
- };
+ if (twl_has_watchdog()) {
+ child = add_child(0, "twl4030_wdt", NULL, 0, false, 0, 0);
+ if (IS_ERR(child))
+ return PTR_ERR(child);
+ }
- status = platform_device_add_resources(pdev, &r, 1);
- }
+ if (twl_has_regulator()) {
+ /*
+ child = add_regulator(TWL4030_REG_VPLL1, pdata->vpll1);
+ if (IS_ERR(child))
+ return PTR_ERR(child);
+ */
+
+ child = add_regulator(TWL4030_REG_VMMC1, pdata->vmmc1);
+ if (IS_ERR(child))
+ return PTR_ERR(child);
+
+ child = add_regulator(TWL4030_REG_VDAC, pdata->vdac);
+ if (IS_ERR(child))
+ return PTR_ERR(child);
+
+ child = add_regulator((features & TWL4030_VAUX2)
+ ? TWL4030_REG_VAUX2_4030
+ : TWL4030_REG_VAUX2,
+ pdata->vaux2);
+ if (IS_ERR(child))
+ return PTR_ERR(child);
+ }
- if (status == 0)
- status = platform_device_add(pdev);
+ if (twl_has_regulator() && usb_transceiver) {
+ static struct regulator_consumer_supply usb1v5 = {
+ .supply = "usb1v5",
+ };
+ static struct regulator_consumer_supply usb1v8 = {
+ .supply = "usb1v8",
+ };
+ static struct regulator_consumer_supply usb3v1 = {
+ .supply = "usb3v1",
+ };
+
+ /* this is a template that gets copied */
+ struct regulator_init_data usb_fixed = {
+ .constraints.valid_modes_mask =
+ REGULATOR_MODE_NORMAL
+ | REGULATOR_MODE_STANDBY,
+ .constraints.valid_ops_mask =
+ REGULATOR_CHANGE_MODE
+ | REGULATOR_CHANGE_STATUS,
+ };
+
+ usb1v5.dev = usb_transceiver;
+ usb1v8.dev = usb_transceiver;
+ usb3v1.dev = usb_transceiver;
+
+ child = add_regulator_linked(TWL4030_REG_VUSB1V5, &usb_fixed,
+ &usb1v5, 1);
+ if (IS_ERR(child))
+ return PTR_ERR(child);
+
+ child = add_regulator_linked(TWL4030_REG_VUSB1V8, &usb_fixed,
+ &usb1v8, 1);
+ if (IS_ERR(child))
+ return PTR_ERR(child);
+
+ child = add_regulator_linked(TWL4030_REG_VUSB3V1, &usb_fixed,
+ &usb3v1, 1);
+ if (IS_ERR(child))
+ return PTR_ERR(child);
+ }
- if (status < 0) {
- platform_device_put(pdev);
- dev_dbg(&twl->client->dev,
- "can't create usb dev, %d\n",
- status);
- }
+ /* maybe add LDOs that are omitted on cost-reduced parts */
+ if (twl_has_regulator() && !(features & TPS_SUBSET)) {
+ /*
+ child = add_regulator(TWL4030_REG_VPLL2, pdata->vpll2);
+ if (IS_ERR(child))
+ return PTR_ERR(child);
+ */
+
+ child = add_regulator(TWL4030_REG_VMMC2, pdata->vmmc2);
+ if (IS_ERR(child))
+ return PTR_ERR(child);
+
+ child = add_regulator(TWL4030_REG_VSIM, pdata->vsim);
+ if (IS_ERR(child))
+ return PTR_ERR(child);
+
+ child = add_regulator(TWL4030_REG_VAUX1, pdata->vaux1);
+ if (IS_ERR(child))
+ return PTR_ERR(child);
+
+ child = add_regulator(TWL4030_REG_VAUX3, pdata->vaux3);
+ if (IS_ERR(child))
+ return PTR_ERR(child);
+
+ child = add_regulator(TWL4030_REG_VAUX4, pdata->vaux4);
+ if (IS_ERR(child))
+ return PTR_ERR(child);
}
-err:
- if (status)
- pr_err("failed to add twl4030's children (status %d)\n", status);
- return status;
+ return 0;
}
/*----------------------------------------------------------------------*/
twl->client = i2c_new_dummy(client->adapter,
twl->address);
if (!twl->client) {
- dev_err(&twl->client->dev,
+ dev_err(&client->dev,
"can't attach client %d\n", i);
status = -ENOMEM;
goto fail;
/* setup clock framework */
clocks_init();
+ /* load power event scripts */
+ if (twl_has_power() && pdata->power)
+ twl4030_power_init(pdata->power);
+
/* Maybe init the T2 Interrupt subsystem */
if (client->irq
&& pdata->irq_base
goto fail;
}
- status = add_children(pdata);
+ status = add_children(pdata, id->driver_data);
fail:
if (status < 0)
twl4030_remove(client);
}
static const struct i2c_device_id twl4030_ids[] = {
- { "twl4030", 0 }, /* "Triton 2" */
- { "tps65950", 0 }, /* catalog version of twl4030 */
- { "tps65930", 0 }, /* fewer LDOs and DACs; no charger */
- { "tps65920", 0 }, /* fewer LDOs; no codec or charger */
- { "twl5030", 0 }, /* T2 updated */
+ { "twl4030", TWL4030_VAUX2 }, /* "Triton 2" */
+ { "twl5030", 0 }, /* T2 updated */
+ { "tps65950", 0 }, /* catalog version of twl5030 */
+ { "tps65930", TPS_SUBSET }, /* fewer LDOs and DACs; no charger */
+ { "tps65920", TPS_SUBSET }, /* fewer LDOs; no codec or charger */
{ /* end of list */ },
};
MODULE_DEVICE_TABLE(i2c, twl4030_ids);
projects / h-e-n / blobdiff