platform/x86: Add Whiskey Cove PMIC TMU support
This adds TMU (Time Management Unit) support for Intel BXT platform.
It enables the alarm wake-up functionality in the TMU unit of Whiskey Cove
PMIC.
Signed-off-by: Nilesh Bacchewar <nilesh.bacchewar@intel.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
[andy: resolve merge conflict in Kconfig]
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
diff --git a/drivers/mfd/intel_soc_pmic_bxtwc.c b/drivers/mfd/intel_soc_pmic_bxtwc.c
index 43e54b7..92aba02 100644
--- a/drivers/mfd/intel_soc_pmic_bxtwc.c
+++ b/drivers/mfd/intel_soc_pmic_bxtwc.c
@@ -42,6 +42,7 @@
#define BXTWC_GPIOIRQ0 0x4E0B
#define BXTWC_GPIOIRQ1 0x4E0C
#define BXTWC_CRITIRQ 0x4E0D
+#define BXTWC_TMUIRQ 0x4FB6
/* Interrupt MASK Registers */
#define BXTWC_MIRQLVL1 0x4E0E
@@ -59,6 +60,7 @@
#define BXTWC_MGPIO0IRQ 0x4E19
#define BXTWC_MGPIO1IRQ 0x4E1A
#define BXTWC_MCRITIRQ 0x4E1B
+#define BXTWC_MTMUIRQ 0x4FB7
/* Whiskey Cove PMIC share same ACPI ID between different platforms */
#define BROXTON_PMIC_WC_HRV 4
@@ -91,6 +93,7 @@
BXTWC_GPIO0_IRQ,
BXTWC_GPIO1_IRQ,
BXTWC_CRIT_IRQ,
+ BXTWC_TMU_IRQ,
};
static const struct regmap_irq bxtwc_regmap_irqs[] = {
@@ -118,6 +121,10 @@
REGMAP_IRQ_REG(BXTWC_CRIT_IRQ, 9, 0x03),
};
+static const struct regmap_irq bxtwc_regmap_irqs_tmu[] = {
+ REGMAP_IRQ_REG(BXTWC_TMU_IRQ, 0, 0x06),
+};
+
static struct regmap_irq_chip bxtwc_regmap_irq_chip = {
.name = "bxtwc_irq_chip",
.status_base = BXTWC_IRQLVL1,
@@ -136,6 +143,15 @@
.num_regs = 10,
};
+static struct regmap_irq_chip bxtwc_regmap_irq_chip_tmu = {
+ .name = "bxtwc_irq_chip_tmu",
+ .status_base = BXTWC_TMUIRQ,
+ .mask_base = BXTWC_MTMUIRQ,
+ .irqs = bxtwc_regmap_irqs_tmu,
+ .num_irqs = ARRAY_SIZE(bxtwc_regmap_irqs_tmu),
+ .num_regs = 1,
+};
+
static struct resource gpio_resources[] = {
DEFINE_RES_IRQ_NAMED(BXTWC_GPIO0_IRQ, "GPIO0"),
DEFINE_RES_IRQ_NAMED(BXTWC_GPIO1_IRQ, "GPIO1"),
@@ -164,6 +180,10 @@
DEFINE_RES_IRQ_NAMED(BXTWC_BCU_IRQ, "BCU"),
};
+static struct resource tmu_resources[] = {
+ DEFINE_RES_IRQ_NAMED(BXTWC_TMU_IRQ, "TMU"),
+};
+
static struct mfd_cell bxt_wc_dev[] = {
{
.name = "bxt_wcove_gpadc",
@@ -191,6 +211,12 @@
.resources = bcu_resources,
},
{
+ .name = "bxt_wcove_tmu",
+ .num_resources = ARRAY_SIZE(tmu_resources),
+ .resources = tmu_resources,
+ },
+
+ {
.name = "bxt_wcove_gpio",
.num_resources = ARRAY_SIZE(gpio_resources),
.resources = gpio_resources,
@@ -400,6 +426,15 @@
goto err_irq_chip_level2;
}
+ ret = regmap_add_irq_chip(pmic->regmap, pmic->irq,
+ IRQF_ONESHOT | IRQF_SHARED,
+ 0, &bxtwc_regmap_irq_chip_tmu,
+ &pmic->irq_chip_data_tmu);
+ if (ret) {
+ dev_err(&pdev->dev, "Failed to add TMU IRQ chip\n");
+ goto err_irq_chip_tmu;
+ }
+
ret = mfd_add_devices(&pdev->dev, PLATFORM_DEVID_NONE, bxt_wc_dev,
ARRAY_SIZE(bxt_wc_dev), NULL, 0,
NULL);
@@ -429,6 +464,8 @@
err_sysfs:
mfd_remove_devices(&pdev->dev);
err_mfd:
+ regmap_del_irq_chip(pmic->irq, pmic->irq_chip_data_tmu);
+err_irq_chip_tmu:
regmap_del_irq_chip(pmic->irq, pmic->irq_chip_data_level2);
err_irq_chip_level2:
regmap_del_irq_chip(pmic->irq, pmic->irq_chip_data);
@@ -444,6 +481,7 @@
mfd_remove_devices(&pdev->dev);
regmap_del_irq_chip(pmic->irq, pmic->irq_chip_data);
regmap_del_irq_chip(pmic->irq, pmic->irq_chip_data_level2);
+ regmap_del_irq_chip(pmic->irq, pmic->irq_chip_data_tmu);
return 0;
}