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platform/x86: Add Whiskey Cove PMIC TMU support

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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 <[email protected]>
Reviewed-by: Mika Westerberg <[email protected]>
[andy: resolve merge conflict in Kconfig]
Signed-off-by: Andy Shevchenko <[email protected]>
This commit is contained in:
Nilesh Bacchewar 2016-11-07 12:11:47 -08:00 • committed by Darren Hart
commit 957ae50981
5 changed files with 211 additions and 0 deletions
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38
drivers/mfd/intel_soc_pmic_bxtwc.c
View file

@ -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 @@ enum bxtwc_irqs_level2 {
BXTWC_GPIO0_IRQ,
BXTWC_GPIO1_IRQ,
BXTWC_CRIT_IRQ,
BXTWC_TMU_IRQ,
};
static const struct regmap_irq bxtwc_regmap_irqs[] = {
@ -118,6 +121,10 @@ static const struct regmap_irq bxtwc_regmap_irqs_level2[] = {
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 @@ static struct regmap_irq_chip bxtwc_regmap_irq_chip_level2 = {
.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 @@ static struct resource bcu_resources[] = {
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",
@ -190,6 +210,12 @@ static struct mfd_cell bxt_wc_dev[] = {
.num_resources = ARRAY_SIZE(bcu_resources),
.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),
@ -400,6 +426,15 @@ static int bxtwc_probe(struct platform_device *pdev)
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 @@ static int bxtwc_probe(struct platform_device *pdev)
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 @@ static int bxtwc_remove(struct platform_device *pdev)
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;
}