* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
-#include <linux/kernel_stat.h>
#include <linux/init.h>
#include <linux/mutex.h>
-#include <linux/interrupt.h>
-#include <linux/irq.h>
-#include <linux/random.h>
-#include <linux/kthread.h>
#include <linux/platform_device.h>
#include <linux/clk.h>
+#include <linux/err.h>
+
+#include <linux/regulator/machine.h>
#include <linux/i2c.h>
#include <linux/i2c/twl4030.h>
+#ifdef CONFIG_ARM
+#include <mach/cpu.h>
+#endif
/*
* The TWL4030 "Triton 2" is one of a family of a multi-function "Power
#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
-static inline void activate_irq(int irq)
-{
-#ifdef CONFIG_ARM
- /* ARM requires an extra step to clear IRQ_NOREQUEST, which it
- * sets on behalf of every irq_chip. Also sets IRQ_NOPROBE.
- */
- set_irq_flags(irq, IRQF_VALID);
-#else
- /* same effect on other architectures */
- set_irq_noprobe(irq);
-#endif
-}
-
-/* Primary Interrupt Handler on TWL4030 Registers */
-
-/* Register Definitions */
-
-#define REG_PIH_ISR_P1 (0x1)
-#define REG_PIH_ISR_P2 (0x2)
-#define REG_PIH_SIR (0x3)
/* Triton Core internal information (BEGIN) */
#define HIGH_PERF_SQ (1 << 3)
-/*----------------------------------------------------------------------*/
-
-/**
- * struct twl4030_mod_iregs - TWL module IMR/ISR regs to mask/clear at init
- * @mod_no: TWL4030 module number (e.g., TWL4030_MODULE_GPIO)
- * @sih_ctrl: address of module SIH_CTRL register
- * @reg_cnt: number of IMR/ISR regs
- * @imrs: pointer to array of TWL module interrupt mask register indices
- * @isrs: pointer to array of TWL module interrupt status register indices
- *
- * Ties together TWL4030 modules and lists of IMR/ISR registers to mask/clear
- * during twl_init_irq().
- */
-struct twl4030_mod_iregs {
- const u8 mod_no;
- const u8 sih_ctrl;
- const u8 reg_cnt;
- const u8 *imrs;
- const u8 *isrs;
-};
-
-/* TWL4030 INT module interrupt mask registers */
-static const u8 __initconst twl4030_int_imr_regs[] = {
- TWL4030_INT_PWR_IMR1,
- TWL4030_INT_PWR_IMR2,
-};
-
-/* TWL4030 INT module interrupt status registers */
-static const u8 __initconst twl4030_int_isr_regs[] = {
- TWL4030_INT_PWR_ISR1,
- TWL4030_INT_PWR_ISR2,
-};
-
-/* TWL4030 INTERRUPTS module interrupt mask registers */
-static const u8 __initconst twl4030_interrupts_imr_regs[] = {
- TWL4030_INTERRUPTS_BCIIMR1A,
- TWL4030_INTERRUPTS_BCIIMR1B,
- TWL4030_INTERRUPTS_BCIIMR2A,
- TWL4030_INTERRUPTS_BCIIMR2B,
-};
-
-/* TWL4030 INTERRUPTS module interrupt status registers */
-static const u8 __initconst twl4030_interrupts_isr_regs[] = {
- TWL4030_INTERRUPTS_BCIISR1A,
- TWL4030_INTERRUPTS_BCIISR1B,
- TWL4030_INTERRUPTS_BCIISR2A,
- TWL4030_INTERRUPTS_BCIISR2B,
-};
-
-/* TWL4030 MADC module interrupt mask registers */
-static const u8 __initconst twl4030_madc_imr_regs[] = {
- TWL4030_MADC_IMR1,
- TWL4030_MADC_IMR2,
-};
-
-/* TWL4030 MADC module interrupt status registers */
-static const u8 __initconst twl4030_madc_isr_regs[] = {
- TWL4030_MADC_ISR1,
- TWL4030_MADC_ISR2,
-};
-
-/* TWL4030 keypad module interrupt mask registers */
-static const u8 __initconst twl4030_keypad_imr_regs[] = {
- TWL4030_KEYPAD_KEYP_IMR1,
- TWL4030_KEYPAD_KEYP_IMR2,
-};
-
-/* TWL4030 keypad module interrupt status registers */
-static const u8 __initconst twl4030_keypad_isr_regs[] = {
- TWL4030_KEYPAD_KEYP_ISR1,
- TWL4030_KEYPAD_KEYP_ISR2,
-};
-
-/* TWL4030 GPIO module interrupt mask registers */
-static const u8 __initconst twl4030_gpio_imr_regs[] = {
- REG_GPIO_IMR1A,
- REG_GPIO_IMR1B,
- REG_GPIO_IMR2A,
- REG_GPIO_IMR2B,
- REG_GPIO_IMR3A,
- REG_GPIO_IMR3B,
-};
-
-/* TWL4030 GPIO module interrupt status registers */
-static const u8 __initconst twl4030_gpio_isr_regs[] = {
- REG_GPIO_ISR1A,
- REG_GPIO_ISR1B,
- REG_GPIO_ISR2A,
- REG_GPIO_ISR2B,
- REG_GPIO_ISR3A,
- REG_GPIO_ISR3B,
-};
-
-/* TWL4030 modules that have IMR/ISR registers that must be masked/cleared */
-static const struct twl4030_mod_iregs __initconst twl4030_mod_regs[] = {
- {
- .mod_no = TWL4030_MODULE_INT,
- .sih_ctrl = TWL4030_INT_PWR_SIH_CTRL,
- .reg_cnt = ARRAY_SIZE(twl4030_int_imr_regs),
- .imrs = twl4030_int_imr_regs,
- .isrs = twl4030_int_isr_regs,
- },
- {
- .mod_no = TWL4030_MODULE_INTERRUPTS,
- .sih_ctrl = TWL4030_INTERRUPTS_BCISIHCTRL,
- .reg_cnt = ARRAY_SIZE(twl4030_interrupts_imr_regs),
- .imrs = twl4030_interrupts_imr_regs,
- .isrs = twl4030_interrupts_isr_regs,
- },
- {
- .mod_no = TWL4030_MODULE_MADC,
- .sih_ctrl = TWL4030_MADC_SIH_CTRL,
- .reg_cnt = ARRAY_SIZE(twl4030_madc_imr_regs),
- .imrs = twl4030_madc_imr_regs,
- .isrs = twl4030_madc_isr_regs,
- },
- {
- .mod_no = TWL4030_MODULE_KEYPAD,
- .sih_ctrl = TWL4030_KEYPAD_KEYP_SIH_CTRL,
- .reg_cnt = ARRAY_SIZE(twl4030_keypad_imr_regs),
- .imrs = twl4030_keypad_imr_regs,
- .isrs = twl4030_keypad_isr_regs,
- },
- {
- .mod_no = TWL4030_MODULE_GPIO,
- .sih_ctrl = REG_GPIO_SIH_CTRL,
- .reg_cnt = ARRAY_SIZE(twl4030_gpio_imr_regs),
- .imrs = twl4030_gpio_imr_regs,
- .isrs = twl4030_gpio_isr_regs,
- },
-};
+/* 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? */
static bool inuse;
{ 3, TWL4030_BASEADD_SECURED_REG },
};
-/*----------------------------------------------------------------------*/
-
-/*
- * TWL4030 doesn't have PIH mask, hence dummy function for mask
- * and unmask of the (eight) interrupts reported at that level ...
- * masking is only available from SIH (secondary) modules.
- */
-
-static void twl4030_i2c_ackirq(unsigned int irq)
-{
-}
-
-static void twl4030_i2c_disableint(unsigned int irq)
-{
-}
-
-static void twl4030_i2c_enableint(unsigned int irq)
-{
-}
-
-static struct irq_chip twl4030_irq_chip = {
- .name = "twl4030",
- .ack = twl4030_i2c_ackirq,
- .mask = twl4030_i2c_disableint,
- .unmask = twl4030_i2c_enableint,
-};
+extern void twl4030_power_init(struct twl4030_power_data *triton2_scripts);
/*----------------------------------------------------------------------*/
*
* 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;
/*----------------------------------------------------------------------*/
-static unsigned twl4030_irq_base;
-
-static struct completion irq_event;
-
-/*
- * This thread processes interrupts reported by the Primary Interrupt Handler.
- */
-static int twl4030_irq_thread(void *data)
+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)
{
- long irq = (long)data;
- irq_desc_t *desc = irq_desc + irq;
- static unsigned i2c_errors;
- const static unsigned max_i2c_errors = 100;
-
- current->flags |= PF_NOFREEZE;
-
- while (!kthread_should_stop()) {
- int ret;
- int module_irq;
- u8 pih_isr;
-
- /* Wait for IRQ, then read PIH irq status (also blocking) */
- wait_for_completion_interruptible(&irq_event);
-
- ret = twl4030_i2c_read_u8(TWL4030_MODULE_PIH, &pih_isr,
- REG_PIH_ISR_P1);
- if (ret) {
- pr_warning("%s: I2C error %d reading PIH ISR\n",
- DRIVER_NAME, ret);
- if (++i2c_errors >= max_i2c_errors) {
- printk(KERN_ERR "Maximum I2C error count"
- " exceeded. Terminating %s.\n",
- __func__);
- break;
- }
- complete(&irq_event);
- continue;
- }
+ 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;
+ }
- /* these handlers deal with the relevant SIH irq status */
- local_irq_disable();
- for (module_irq = twl4030_irq_base;
- pih_isr;
- pih_isr >>= 1, module_irq++) {
- if (pih_isr & 0x1) {
- irq_desc_t *d = irq_desc + module_irq;
+ device_init_wakeup(&pdev->dev, can_wakeup);
+ pdev->dev.parent = &twl->client->dev;
- d->handle_irq(module_irq, d);
- }
+ 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;
}
- local_irq_enable();
-
- desc->chip->unmask(irq);
}
- return 0;
-}
-
-/*
- * do_twl4030_irq() is the desc->handle method for the twl4030 interrupt.
- * This is a chained interrupt, so there is no desc->action method for it.
- * Now we need to query the interrupt controller in the twl4030 to determine
- * which module is generating the interrupt request. However, we can't do i2c
- * transactions in interrupt context, so we must defer that work to a kernel
- * thread. All we do here is acknowledge and mask the interrupt and wakeup
- * the kernel thread.
- */
-static void do_twl4030_irq(unsigned int irq, irq_desc_t *desc)
-{
- const unsigned int cpu = smp_processor_id();
-
- /*
- * Earlier this was desc->triggered = 1;
- */
- desc->status |= IRQ_LEVEL;
+ if (irq0) {
+ struct resource r[2] = {
+ { .start = irq0, .flags = IORESOURCE_IRQ, },
+ { .start = irq1, .flags = IORESOURCE_IRQ, },
+ };
- /*
- * Acknowledge, clear _AND_ disable the interrupt.
- */
- desc->chip->ack(irq);
+ status = platform_device_add_resources(pdev, r, irq1 ? 2 : 1);
+ if (status < 0) {
+ dev_dbg(&pdev->dev, "can't add irqs\n");
+ goto err;
+ }
+ }
- if (!desc->depth) {
- kstat_cpu(cpu).irqs[irq]++;
+ status = platform_device_add(pdev);
- complete(&irq_event);
+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;
}
-static struct task_struct * __init start_twl4030_irq_thread(long irq)
+static inline struct device *add_child(unsigned chip, const char *name,
+ void *pdata, unsigned pdata_len,
+ bool can_wakeup, int irq0, int irq1)
{
- struct task_struct *thread;
-
- init_completion(&irq_event);
- thread = kthread_run(twl4030_irq_thread, (void *)irq, "twl4030-irq");
- if (!thread)
- pr_err("%s: could not create twl4030 irq %ld thread!\n",
- DRIVER_NAME, irq);
-
- return thread;
+ return add_numbered_child(chip, name, -1, pdata, pdata_len,
+ can_wakeup, irq0, irq1);
}
-/*----------------------------------------------------------------------*/
-
-static int add_children(struct twl4030_platform_data *pdata)
+static struct device *
+add_regulator_linked(int num, struct regulator_init_data *pdata,
+ struct regulator_consumer_supply *consumers,
+ unsigned num_consumers)
{
- struct platform_device *pdev = NULL;
- struct twl4030_client *twl = NULL;
- int status = 0;
+ /* regulator framework demands init_data ... */
+ if (!pdata)
+ return NULL;
- if (twl_has_bci() && pdata->bci) {
- twl = &twl4030_modules[3];
-
- pdev = platform_device_alloc("twl4030_bci", -1);
- if (!pdev) {
- pr_debug("%s: can't alloc bci dev\n", DRIVER_NAME);
- status = -ENOMEM;
- 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 (consumers) {
+ pdata->consumer_supplies = consumers;
+ pdata->num_consumer_supplies = num_consumers;
+ }
- if (status == 0) {
- struct resource r = {
- .start = TWL4030_PWRIRQ_CHG_PRES,
- .flags = IORESOURCE_IRQ,
- };
+ /* 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);
+}
- status = platform_device_add_resources(pdev, &r, 1);
- }
+static struct device *
+add_regulator(int num, struct regulator_init_data *pdata)
+{
+ return add_regulator_linked(num, pdata, NULL, 0);
+}
- if (status == 0)
- status = platform_device_add(pdev);
+/*
+ * 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.
+ */
- if (status < 0) {
- platform_device_put(pdev);
- dev_dbg(&twl->client->dev,
- "can't create bci dev, %d\n",
- status);
- goto err;
- }
+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) {
- twl = &twl4030_modules[1];
-
- pdev = platform_device_alloc("twl4030_gpio", -1);
- if (!pdev) {
- pr_debug("%s: can't alloc gpio dev\n", DRIVER_NAME);
- status = -ENOMEM;
- goto err;
- }
-
- /* 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;
- }
- }
-
- /* GPIO module IRQ */
- if (status == 0) {
- struct resource r = {
- .start = pdata->irq_base + 0,
- .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 gpio dev, %d\n",
- status);
- goto err;
- }
+ 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 = {
- /* REVISIT don't hard-wire this stuff */
- .start = TWL4030_PWRIRQ_RTC,
- .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;
- }
-
- 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 (status == 0) {
- struct resource r = {
- .start = TWL4030_PWRIRQ_USB_PRES,
- .flags = IORESOURCE_IRQ,
- };
+ 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;
+ }
- 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;
}
/*----------------------------------------------------------------------*/
osc = clk_get(NULL, "osc_ck");
else
osc = clk_get(NULL, "osc_sys_ck");
-#else
- /* REVISIT for non-OMAP systems, pass the clock rate from
- * board init code, using platform_data.
- */
- osc = ERR_PTR(-EIO);
-#endif
+
if (IS_ERR(osc)) {
printk(KERN_WARNING "Skipping twl4030 internal clock init and "
"using bootloader value (unknown osc rate)\n");
rate = clk_get_rate(osc);
clk_put(osc);
+#else
+ /* REVISIT for non-OMAP systems, pass the clock rate from
+ * board init code, using platform_data.
+ */
+ osc = ERR_PTR(-EIO);
+
+ printk(KERN_WARNING "Skipping twl4030 internal clock init and "
+ "using bootloader value (unknown osc rate)\n");
+
+ return;
+#endif
+
switch (rate) {
case 19200000:
ctrl = HFCLK_FREQ_19p2_MHZ;
/*----------------------------------------------------------------------*/
-/**
- * twl4030_i2c_clear_isr - clear TWL4030 SIH ISR regs via read + write
- * @mod_no: TWL4030 module number
- * @reg: register index to clear
- * @cor: value of the <module>_SIH_CTRL.COR bit (1 or 0)
- *
- * Either reads (cor == 1) or writes (cor == 0) to a TWL4030 interrupt
- * status register to ensure that any prior interrupts are cleared.
- * Returns the status from the I2C read operation.
- */
-static int __init twl4030_i2c_clear_isr(u8 mod_no, u8 reg, u8 cor)
-{
- u8 tmp;
-
- return (cor) ? twl4030_i2c_read_u8(mod_no, &tmp, reg) :
- twl4030_i2c_write_u8(mod_no, 0xff, reg);
-}
-
-/**
- * twl4030_read_cor_bit - are TWL module ISRs cleared by reads or writes?
- * @mod_no: TWL4030 module number
- * @reg: register index to clear
- *
- * Returns 1 if the TWL4030 SIH interrupt status registers (ISRs) for
- * the specified TWL module are cleared by reads, or 0 if cleared by
- * writes.
- */
-static int twl4030_read_cor_bit(u8 mod_no, u8 reg)
-{
- u8 tmp = 0;
-
- WARN_ON(twl4030_i2c_read_u8(mod_no, &tmp, reg) < 0);
-
- tmp &= TWL4030_SIH_CTRL_COR_MASK;
- tmp >>= __ffs(TWL4030_SIH_CTRL_COR_MASK);
-
- return tmp;
-}
-
-/**
- * twl4030_mask_clear_intrs - mask and clear all TWL4030 interrupts
- * @t: pointer to twl4030_mod_iregs array
- * @t_sz: ARRAY_SIZE(t) (starting at 1)
- *
- * Mask all TWL4030 interrupt mask registers (IMRs) and clear all
- * interrupt status registers (ISRs). No return value, but will WARN if
- * any I2C operations fail.
- */
-static void __init twl4030_mask_clear_intrs(const struct twl4030_mod_iregs *t,
- const u8 t_sz)
-{
- int i, j;
-
- /*
- * N.B. - further efficiency is possible here. Eight I2C
- * operations on BCI and GPIO modules are avoidable if I2C
- * burst read/write transactions were implemented. Would
- * probably save about 1ms of boot time and a small amount of
- * power.
- */
- for (i = 0; i < t_sz; i++) {
- const struct twl4030_mod_iregs tmr = t[i];
- int cor;
-
- /* Are ISRs cleared by reads or writes? */
- cor = twl4030_read_cor_bit(tmr.mod_no, tmr.sih_ctrl);
-
- for (j = 0; j < tmr.reg_cnt; j++) {
-
- /* Mask interrupts at the TWL4030 */
- WARN_ON(twl4030_i2c_write_u8(tmr.mod_no, 0xff,
- tmr.imrs[j]) < 0);
-
- /* Clear TWL4030 ISRs */
- WARN_ON(twl4030_i2c_clear_isr(tmr.mod_no,
- tmr.isrs[j], cor) < 0);
- }
- }
-}
-
-
-static void twl_init_irq(int irq_num, unsigned irq_base, unsigned irq_end)
-{
- int i;
-
- /*
- * Mask and clear all TWL4030 interrupts since initially we do
- * not have any TWL4030 module interrupt handlers present
- */
- twl4030_mask_clear_intrs(twl4030_mod_regs,
- ARRAY_SIZE(twl4030_mod_regs));
-
- twl4030_irq_base = irq_base;
-
- /* install an irq handler for each of the PIH modules */
- for (i = irq_base; i < irq_end; i++) {
- set_irq_chip_and_handler(i, &twl4030_irq_chip,
- handle_simple_irq);
- activate_irq(i);
- }
-
- /* install an irq handler to demultiplex the TWL4030 interrupt */
- set_irq_data(irq_num, start_twl4030_irq_thread(irq_num));
- set_irq_chained_handler(irq_num, do_twl4030_irq);
-}
-
-/*----------------------------------------------------------------------*/
+int twl_init_irq(int irq_num, unsigned irq_base, unsigned irq_end);
+int twl_exit_irq(void);
static int twl4030_remove(struct i2c_client *client)
{
unsigned i;
+ int status;
- /* FIXME undo twl_init_irq() */
- if (twl4030_irq_base) {
- dev_err(&client->dev, "can't yet clean up IRQs?\n");
- return -ENOSYS;
- }
+ status = twl_exit_irq();
+ if (status < 0)
+ return status;
for (i = 0; i < TWL4030_NUM_SLAVES; i++) {
struct twl4030_client *twl = &twl4030_modules[i];
return -EIO;
}
- if (inuse || twl4030_irq_base) {
+ if (inuse) {
dev_dbg(&client->dev, "driver is already in use\n");
return -EBUSY;
}
/* 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
&& pdata->irq_end > pdata->irq_base) {
- twl_init_irq(client->irq, pdata->irq_base, pdata->irq_end);
- dev_info(&client->dev, "IRQ %d chains IRQs %d..%d\n",
- client->irq, pdata->irq_base, pdata->irq_end - 1);
+ status = twl_init_irq(client->irq, pdata->irq_base, pdata->irq_end);
+ if (status < 0)
+ 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 / linux-2.6-omap-h63xx.git / blobdiff