mfd: Add support for twl6030 irq framework
This patch adds support for phoenix interrupt framework. New iInterrupt
status register A, B, C are introduced in Phoenix and are cleared on write.
Due to the differences in interrupt handling with respect to TWL4030,
twl6030-irq.c is created for TWL6030 PMIC
Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Signed-off-by: Balaji T K <balajitk@ti.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Reviewed-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
diff --git a/drivers/mfd/twl-core.c b/drivers/mfd/twl-core.c
index 79946fe..c48a613 100644
--- a/drivers/mfd/twl-core.c
+++ b/drivers/mfd/twl-core.c
@@ -181,6 +181,30 @@
/* Triton Core internal information (END) */
+/* subchip/slave 0 0x48 - POWER */
+#define TWL6030_BASEADD_RTC 0x0000
+#define TWL6030_BASEADD_MEM 0x0017
+#define TWL6030_BASEADD_PM_MASTER 0x001F
+#define TWL6030_BASEADD_PM_SLAVE_MISC 0x0030 /* PM_RECEIVER */
+#define TWL6030_BASEADD_PM_MISC 0x00E2
+#define TWL6030_BASEADD_PM_PUPD 0x00F0
+
+/* subchip/slave 1 0x49 - FEATURE */
+#define TWL6030_BASEADD_USB 0x0000
+#define TWL6030_BASEADD_GPADC_CTRL 0x002E
+#define TWL6030_BASEADD_AUX 0x0090
+#define TWL6030_BASEADD_PWM 0x00BA
+#define TWL6030_BASEADD_GASGAUGE 0x00C0
+#define TWL6030_BASEADD_PIH 0x00D0
+#define TWL6030_BASEADD_CHARGER 0x00E0
+
+/* subchip/slave 2 0x4A - DFT */
+#define TWL6030_BASEADD_DIEID 0x00C0
+
+/* subchip/slave 3 0x4B - AUDIO */
+#define TWL6030_BASEADD_AUDIO 0x0000
+#define TWL6030_BASEADD_RSV 0x0000
+
/* Few power values */
#define R_CFG_BOOT 0x05
#define R_PROTECT_KEY 0x0E
@@ -202,13 +226,21 @@
#define TWL4030_VAUX2 BIT(0) /* pre-5030 voltage ranges */
#define TPS_SUBSET BIT(1) /* tps659[23]0 have fewer LDOs */
#define TWL5031 BIT(2) /* twl5031 has different registers */
+#define TWL6030_CLASS BIT(3) /* TWL6030 class */
/*----------------------------------------------------------------------*/
/* is driver active, bound to a chip? */
static bool inuse;
-/* Structure for each TWL4030 Slave */
+static unsigned int twl_id;
+unsigned int twl_rev(void)
+{
+ return twl_id;
+}
+EXPORT_SYMBOL(twl_rev);
+
+/* Structure for each TWL4030/TWL6030 Slave */
struct twl_client {
struct i2c_client *client;
u8 address;
@@ -228,11 +260,12 @@
unsigned char sid; /* Slave ID */
unsigned char base; /* base address */
};
+struct twl_mapping *twl_map;
static struct twl_mapping twl4030_map[TWL4030_MODULE_LAST + 1] = {
/*
* NOTE: don't change this table without updating the
- * <linux/i2c/twl4030.h> defines for TWL4030_MODULE_*
+ * <linux/i2c/twl.h> defines for TWL4030_MODULE_*
* so they continue to match the order in this table.
*/
@@ -265,6 +298,40 @@
{ 3, TWL4030_BASEADD_SECURED_REG },
};
+static struct twl_mapping twl6030_map[] = {
+ /*
+ * NOTE: don't change this table without updating the
+ * <linux/i2c/twl.h> defines for TWL4030_MODULE_*
+ * so they continue to match the order in this table.
+ */
+ { SUB_CHIP_ID1, TWL6030_BASEADD_USB },
+ { SUB_CHIP_ID3, TWL6030_BASEADD_AUDIO },
+ { SUB_CHIP_ID2, TWL6030_BASEADD_DIEID },
+ { SUB_CHIP_ID2, TWL6030_BASEADD_RSV },
+ { SUB_CHIP_ID1, TWL6030_BASEADD_PIH },
+
+ { SUB_CHIP_ID2, TWL6030_BASEADD_RSV },
+ { SUB_CHIP_ID2, TWL6030_BASEADD_RSV },
+ { SUB_CHIP_ID1, TWL6030_BASEADD_GPADC_CTRL },
+ { SUB_CHIP_ID2, TWL6030_BASEADD_RSV },
+ { SUB_CHIP_ID2, TWL6030_BASEADD_RSV },
+
+ { SUB_CHIP_ID1, TWL6030_BASEADD_CHARGER },
+ { SUB_CHIP_ID1, TWL6030_BASEADD_GASGAUGE },
+ { SUB_CHIP_ID1, TWL6030_BASEADD_PWM },
+ { SUB_CHIP_ID2, TWL6030_BASEADD_RSV },
+ { SUB_CHIP_ID2, TWL6030_BASEADD_RSV },
+
+ { SUB_CHIP_ID2, TWL6030_BASEADD_RSV },
+ { SUB_CHIP_ID2, TWL6030_BASEADD_RSV },
+ { SUB_CHIP_ID2, TWL6030_BASEADD_RSV },
+ { SUB_CHIP_ID0, TWL6030_BASEADD_PM_MASTER },
+ { SUB_CHIP_ID0, TWL6030_BASEADD_PM_SLAVE_MISC },
+
+ { SUB_CHIP_ID0, TWL6030_BASEADD_RTC },
+ { SUB_CHIP_ID0, TWL6030_BASEADD_MEM },
+};
+
/*----------------------------------------------------------------------*/
/* Exported Functions */
@@ -292,7 +359,7 @@
pr_err("%s: invalid module number %d\n", DRIVER_NAME, mod_no);
return -EPERM;
}
- sid = twl4030_map[mod_no].sid;
+ sid = twl_map[mod_no].sid;
twl = &twl_modules[sid];
if (unlikely(!inuse)) {
@@ -310,7 +377,7 @@
msg->flags = 0;
msg->buf = value;
/* over write the first byte of buffer with the register address */
- *value = twl4030_map[mod_no].base + reg;
+ *value = twl_map[mod_no].base + reg;
ret = i2c_transfer(twl->client->adapter, twl->xfer_msg, 1);
mutex_unlock(&twl->xfer_lock);
@@ -349,7 +416,7 @@
pr_err("%s: invalid module number %d\n", DRIVER_NAME, mod_no);
return -EPERM;
}
- sid = twl4030_map[mod_no].sid;
+ sid = twl_map[mod_no].sid;
twl = &twl_modules[sid];
if (unlikely(!inuse)) {
@@ -362,7 +429,7 @@
msg->addr = twl->address;
msg->len = 1;
msg->flags = 0; /* Read the register value */
- val = twl4030_map[mod_no].base + reg;
+ val = twl_map[mod_no].base + reg;
msg->buf = &val;
/* [MSG2] fill the data rx buffer */
msg = &twl->xfer_msg[1];
@@ -486,6 +553,7 @@
struct regulator_consumer_supply *consumers,
unsigned num_consumers)
{
+ unsigned sub_chip_id;
/* regulator framework demands init_data ... */
if (!pdata)
return NULL;
@@ -496,7 +564,8 @@
}
/* NOTE: we currently ignore regulator IRQs, e.g. for short circuits */
- return add_numbered_child(3, "twl_reg", num,
+ sub_chip_id = twl_map[TWL_MODULE_PM_MASTER].sid;
+ return add_numbered_child(sub_chip_id, "twl_reg", num,
pdata, sizeof(*pdata), false, 0, 0);
}
@@ -516,6 +585,7 @@
add_children(struct twl4030_platform_data *pdata, unsigned long features)
{
struct device *child;
+ unsigned sub_chip_id;
if (twl_has_bci() && pdata->bci &&
!(features & (TPS_SUBSET | TWL5031))) {
@@ -561,7 +631,8 @@
* Eventually, Linux might become more aware of such
* HW security concerns, and "least privilege".
*/
- child = add_child(3, "twl_rtc",
+ sub_chip_id = twl_map[TWL_MODULE_RTC].sid;
+ child = add_child(sub_chip_id, "twl_rtc",
NULL, 0,
true, pdata->irq_base + RTC_INTR_OFFSET, 0);
if (IS_ERR(child))
@@ -812,16 +883,22 @@
/*----------------------------------------------------------------------*/
-int twl_init_irq(int irq_num, unsigned irq_base, unsigned irq_end);
-int twl_exit_irq(void);
-int twl_init_chip_irq(const char *chip);
+int twl4030_init_irq(int irq_num, unsigned irq_base, unsigned irq_end);
+int twl4030_exit_irq(void);
+int twl4030_init_chip_irq(const char *chip);
+int twl6030_init_irq(int irq_num, unsigned irq_base, unsigned irq_end);
+int twl6030_exit_irq(void);
static int twl_remove(struct i2c_client *client)
{
unsigned i;
int status;
- status = twl_exit_irq();
+ if (twl_class_is_4030())
+ status = twl4030_exit_irq();
+ else
+ status = twl6030_exit_irq();
+
if (status < 0)
return status;
@@ -878,6 +955,13 @@
mutex_init(&twl->xfer_lock);
}
inuse = true;
+ if ((id->driver_data) & TWL6030_CLASS) {
+ twl_id = TWL6030_CLASS_ID;
+ twl_map = &twl6030_map[0];
+ } else {
+ twl_id = TWL4030_CLASS_ID;
+ twl_map = &twl4030_map[0];
+ }
/* setup clock framework */
clocks_init(&client->dev, pdata->clock);
@@ -890,8 +974,15 @@
if (client->irq
&& pdata->irq_base
&& pdata->irq_end > pdata->irq_base) {
- twl_init_chip_irq(id->name);
- status = twl_init_irq(client->irq, pdata->irq_base, pdata->irq_end);
+ if (twl_class_is_4030()) {
+ twl4030_init_chip_irq(id->name);
+ status = twl4030_init_irq(client->irq, pdata->irq_base,
+ pdata->irq_end);
+ } else {
+ status = twl6030_init_irq(client->irq, pdata->irq_base,
+ pdata->irq_end);
+ }
+
if (status < 0)
goto fail;
}
@@ -910,6 +1001,7 @@
{ "tps65950", 0 }, /* catalog version of twl5030 */
{ "tps65930", TPS_SUBSET }, /* fewer LDOs and DACs; no charger */
{ "tps65920", TPS_SUBSET }, /* fewer LDOs; no codec or charger */
+ { "twl6030", TWL6030_CLASS }, /* "Phoenix power chip" */
{ /* end of list */ },
};
MODULE_DEVICE_TABLE(i2c, twl_ids);