This patch adds the MFD driver for Dollar Cove TI PMIC (ACPI INT33F5)
that is found on some Intel Cherry Trail devices.
The driver is based on the original work by Intel, found at:
https://github.com/01org/ProductionKernelQuilts
This is a minimal version for adding the basic resources. Currently,
only ACPI PMIC opregion and the external power-button are used.
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=193891
Signed-off-by: Takashi Iwai
---
drivers/mfd/Kconfig| 13 +++
drivers/mfd/Makefile | 1 +
drivers/mfd/intel_soc_pmic_dc_ti.c | 189 +
3 files changed, 203 insertions(+)
create mode 100644 drivers/mfd/intel_soc_pmic_dc_ti.c
diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index 94ad2c1c3d90..28c12bb50c9f 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -496,6 +496,19 @@ config INTEL_SOC_PMIC_CHTWC
available before any devices using it are probed. This option also
causes the designware-i2c driver to be builtin for the same reason.
+config INTEL_SOC_PMIC_DC_TI
+ tristate "Support for Dollar Cove TI PMIC"
+ depends on GPIOLIB
+ depends on I2C
+ depends on ACPI
+ depends on X86
+ select MFD_CORE
+ select REGMAP_I2C
+ select REGMAP_IRQ
+ help
+ Select this option for supporting Dollar Cove TI PMIC device that is
+ found on some Intel Cherry Trail systems.
+
config MFD_INTEL_LPSS
tristate
select COMMON_CLK
diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
index 080793b3fd0e..16c4fe519d30 100644
--- a/drivers/mfd/Makefile
+++ b/drivers/mfd/Makefile
@@ -216,6 +216,7 @@ intel-soc-pmic-objs := intel_soc_pmic_core.o
intel_soc_pmic_crc.o
obj-$(CONFIG_INTEL_SOC_PMIC) += intel-soc-pmic.o
obj-$(CONFIG_INTEL_SOC_PMIC_BXTWC) += intel_soc_pmic_bxtwc.o
obj-$(CONFIG_INTEL_SOC_PMIC_CHTWC) += intel_soc_pmic_chtwc.o
+obj-$(CONFIG_INTEL_SOC_PMIC_DC_TI) += intel_soc_pmic_dc_ti.o
obj-$(CONFIG_MFD_MT6397) += mt6397-core.o
obj-$(CONFIG_MFD_ALTERA_A10SR) += altera-a10sr.o
diff --git a/drivers/mfd/intel_soc_pmic_dc_ti.c
b/drivers/mfd/intel_soc_pmic_dc_ti.c
new file mode 100644
index ..f1c2ac310bf0
--- /dev/null
+++ b/drivers/mfd/intel_soc_pmic_dc_ti.c
@@ -0,0 +1,189 @@
+/*
+ * Device access for Dollar Cove TI PMIC
+ * Copyright (c) 2014, Intel Corporation.
+ * Author: Ramakrishna Pallala
+ *
+ * Cleanup and forward-ported
+ * Copyright (c) 2017 Takashi Iwai
+ */
+
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+
+#define DC_TI_IRQLVL1 0x01
+#define DC_TI_MASK_IRQLVL1 0x02
+
+/* Level 1 IRQs */
+enum {
+ DC_TI_PWRBTN = 0, /* power button */
+ DC_TI_DIETMPWARN, /* thermal */
+ DC_TI_ADCCMPL, /* ADC */
+ /* no irq 3 */
+ DC_TI_VBATLOW = 4, /* battery */
+ DC_TI_VBUSDET, /* power source */
+ /* no irq 6 */
+ DC_TI_CCEOCAL = 7, /* battery */
+};
+
+static struct resource power_button_resources[] = {
+ DEFINE_RES_IRQ(DC_TI_PWRBTN),
+};
+
+static struct resource thermal_resources[] = {
+ DEFINE_RES_IRQ(DC_TI_DIETMPWARN),
+};
+
+static struct resource adc_resources[] = {
+ DEFINE_RES_IRQ(DC_TI_ADCCMPL),
+};
+
+static struct resource pwrsrc_resources[] = {
+ DEFINE_RES_IRQ(DC_TI_VBUSDET),
+};
+
+static struct resource battery_resources[] = {
+ DEFINE_RES_IRQ(DC_TI_VBATLOW),
+ DEFINE_RES_IRQ(DC_TI_CCEOCAL),
+};
+
+static struct mfd_cell dc_ti_dev[] = {
+ {
+ .name = "dc_ti_pwrbtn",
+ .num_resources = ARRAY_SIZE(power_button_resources),
+ .resources = power_button_resources,
+ },
+ {
+ .name = "dc_ti_adc",
+ .num_resources = ARRAY_SIZE(adc_resources),
+ .resources = adc_resources,
+ },
+ {
+ .name = "dc_ti_thermal",
+ .num_resources = ARRAY_SIZE(thermal_resources),
+ .resources = thermal_resources,
+ },
+ {
+ .name = "dc_ti_pwrsrc",
+ .num_resources = ARRAY_SIZE(pwrsrc_resources),
+ .resources = pwrsrc_resources,
+ },
+ {
+ .name = "dc_ti_battery",
+ .num_resources = ARRAY_SIZE(battery_resources),
+ .resources = battery_resources,
+ },
+ {
+ .name = "dc_ti_region",
+ },
+};
+
+static const struct regmap_config dc_ti_regmap_config = {
+ .reg_bits = 8,
+ .val_bits = 8,
+ .max_register = 128,
+ .cache_type = REGCACHE_NONE,
+};
+
+static const struct regmap_irq dc_ti_irqs[] = {
+ REGMAP_IRQ_REG(DC_TI_PWRBTN, 0, BIT(DC_TI_PWRBTN)),
+ REGMAP_IRQ_REG(DC_TI_DIETMPWARN, 0, BIT(DC_TI_DIETMPWARN)),
+ REGMAP_IRQ_REG(DC_TI_ADCCMPL, 0, BIT(DC_TI_ADCCMPL)),
+ REGMAP_IRQ_REG
