The Baytrail-T platform firmware has defined two customized operation
regions for PMIC chip Crystal Cove - one is for power resource handling
and one is for thermal: sensor temperature reporting, trip point setting,
etc. This patch adds support for them on top of the existing Crystal Cove
PMIC driver.

The reason to split code into a separate file intel_soc_pmic_opregion.c
is that there are more PMIC driver with ACPI operation region support
coming and we can re-use those code. The intel_soc_pmic_opregion_data
structure is created also for this purpose: when we need to support a
new PMIC's operation region, we just need to fill those callbacks and
the two register mapping tables.

Signed-off-by: Aaron Lu <aaron...@intel.com>
---
 drivers/mfd/Kconfig                       |  11 +
 drivers/mfd/Makefile                      |   1 +
 drivers/mfd/intel_soc_pmic_crc.c          |   3 +
 drivers/mfd/intel_soc_pmic_crc_opregion.c | 229 +++++++++++++++++++
 drivers/mfd/intel_soc_pmic_opregion.c     | 350 ++++++++++++++++++++++++++++++
 drivers/mfd/intel_soc_pmic_opregion.h     |  35 +++
 6 files changed, 629 insertions(+)
 create mode 100644 drivers/mfd/intel_soc_pmic_crc_opregion.c
 create mode 100644 drivers/mfd/intel_soc_pmic_opregion.c
 create mode 100644 drivers/mfd/intel_soc_pmic_opregion.h

diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index de5abf244746..77a7229058a6 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -266,6 +266,17 @@ config INTEL_SOC_PMIC
          thermal, charger and related power management functions
          on these systems.
 
+config CRC_PMIC_OPREGION
+       tristate "ACPI operation region support for CrystalCove PMIC"
+       depends on ACPI
+       depends on INTEL_SOC_PMIC
+       help
+         Select this option to enable support for ACPI operation
+         region of the PMIC chip. The operation region can be used
+         to control power rails and sensor reading/writing on the
+         PMIC chip. This config addes ACPI operation region support
+         for CrystalCove PMIC.
+
 config MFD_INTEL_MSIC
        bool "Intel MSIC"
        depends on INTEL_SCU_IPC
diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
index f00148782d9b..e02f0573e293 100644
--- a/drivers/mfd/Makefile
+++ b/drivers/mfd/Makefile
@@ -172,3 +172,4 @@ obj-$(CONFIG_MFD_IPAQ_MICRO)        += ipaq-micro.o
 
 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_CRC_PMIC_OPREGION) += intel_soc_pmic_crc_opregion.o 
intel_soc_pmic_opregion.o
diff --git a/drivers/mfd/intel_soc_pmic_crc.c b/drivers/mfd/intel_soc_pmic_crc.c
index 7107cab832e6..48845d636bba 100644
--- a/drivers/mfd/intel_soc_pmic_crc.c
+++ b/drivers/mfd/intel_soc_pmic_crc.c
@@ -106,6 +106,9 @@ static struct mfd_cell crystal_cove_dev[] = {
                .num_resources = ARRAY_SIZE(gpio_resources),
                .resources = gpio_resources,
        },
+       {
+               .name = "crystal_cove_region",
+       },
 };
 
 static struct regmap_config crystal_cove_regmap_config = {
diff --git a/drivers/mfd/intel_soc_pmic_crc_opregion.c 
b/drivers/mfd/intel_soc_pmic_crc_opregion.c
new file mode 100644
index 000000000000..27b67dc3fa8d
--- /dev/null
+++ b/drivers/mfd/intel_soc_pmic_crc_opregion.c
@@ -0,0 +1,229 @@
+/*
+ * intel_soc_pmic_crc_opregion.c - Intel SoC PMIC operation region Driver
+ *
+ * Copyright (C) 2014 Intel Corporation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version
+ * 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/module.h>
+#include <linux/acpi.h>
+#include <linux/mfd/intel_soc_pmic.h>
+#include <linux/regmap.h>
+#include <linux/platform_device.h>
+#include "intel_soc_pmic_opregion.h"
+
+#define PWR_SOURCE_SELECT      BIT(1)
+
+#define PMIC_A0LOCK_REG                0xc5
+
+static struct pmic_pwr_table pwr_table[] = {
+       {
+               .address = 0x24,
+               .pwr_reg = {
+                       .reg = 0x66,
+                       .bit = 0x00,
+               },
+       },      /* X285 -> V2P85SX, camara */
+       {
+               .address = 0x48,
+               .pwr_reg = {
+                       .reg = 0x5d,
+                       .bit = 0x00,
+               },
+       },      /* V18X -> V1P8SX, eMMC/camara/audio */
+};
+
+static struct pmic_dptf_table dptf_table[] = {
+       {
+               .address = 0x00,
+               .reg = 0x75
+       },      /* TMP0 -> SYS0_THRM_RSLT_L */
+       {
+               .address = 0x04,
+               .reg = 0x95
+       },      /* AX00 -> SYS0_THRMALRT0_L */
+       {
+               .address = 0x08,
+               .reg = 0x97
+       },      /* AX01 -> SYS0_THRMALRT1_L */
+       {
+               .address = 0x0c,
+               .reg = 0x77
+       },      /* TMP1 -> SYS1_THRM_RSLT_L */
+       {
+               .address = 0x10,
+               .reg = 0x9a
+       },      /* AX10 -> SYS1_THRMALRT0_L */
+       {
+               .address = 0x14,
+               .reg = 0x9c
+       },      /* AX11 -> SYS1_THRMALRT1_L */
+       {
+               .address = 0x18,
+               .reg = 0x79
+       },      /* TMP2 -> SYS2_THRM_RSLT_L */
+       {
+               .address = 0x1c,
+               .reg = 0x9f
+       },      /* AX20 -> SYS2_THRMALRT0_L */
+       {
+               .address = 0x20,
+               .reg = 0xa1
+       },      /* AX21 -> SYS2_THRMALRT1_L */
+       {
+               .address = 0x48,
+               .reg = 0x94
+       },      /* PEN0 -> SYS0_THRMALRT0_H */
+       {
+               .address = 0x4c,
+               .reg = 0x99
+       },      /* PEN1 -> SYS1_THRMALRT1_H */
+       {
+               .address = 0x50,
+               .reg = 0x9e
+       },      /* PEN2 -> SYS2_THRMALRT2_H */
+};
+
+static int intel_crc_pmic_get_power(struct regmap *regmap,
+                                   struct pmic_pwr_reg *preg, u64 *value)
+{
+       int data;
+
+       if (regmap_read(regmap, preg->reg, &data))
+               return -EIO;
+
+       *value = (data & PWR_SOURCE_SELECT) && (data & BIT(preg->bit)) ? 1 : 0;
+       return 0;
+}
+
+static int intel_crc_pmic_update_power(struct regmap *regmap,
+                                      struct pmic_pwr_reg *preg, bool on)
+{
+       int data;
+
+       if (regmap_read(regmap, preg->reg, &data))
+               return -EIO;
+
+       if (on) {
+               data |= PWR_SOURCE_SELECT | BIT(preg->bit);
+       } else {
+               data &= ~BIT(preg->bit);
+               data |= PWR_SOURCE_SELECT;
+       }
+
+       if (regmap_write(regmap, preg->reg, data))
+               return -EIO;
+       return 0;
+}
+
+/* Raw temperature value is 10bits: 8bits in reg and 2bits in reg-1 bit0,1 */
+static int intel_crc_pmic_get_raw_temp(struct regmap *regmap, int reg)
+{
+       int temp_l, temp_h;
+
+       if (regmap_read(regmap, reg, &temp_l) ||
+           regmap_read(regmap, reg - 1, &temp_h))
+               return -EIO;
+
+       return (temp_l | ((temp_h & 0x3) << 8));
+}
+
+static int
+intel_crc_pmic_update_aux(struct regmap *regmap, int reg, int raw)
+{
+       if (regmap_write(regmap, reg, raw) ||
+           regmap_update_bits(regmap, reg - 1, 0x3, raw >> 8))
+               return -EIO;
+
+       return 0;
+}
+
+static int
+intel_crc_pmic_get_policy(struct regmap *regmap, int reg, u64 *value)
+{
+       int pen;
+
+       if (regmap_read(regmap, reg, &pen))
+               return -EIO;
+       *value = pen >> 7;
+       return 0;
+}
+
+static int intel_crc_pmic_update_policy(struct regmap *regmap,
+                                       int reg, int enable)
+{
+       int alert0;
+
+       /* Update to policy enable bit requires unlocking a0lock */
+       if (regmap_read(regmap, PMIC_A0LOCK_REG, &alert0))
+               return -EIO;
+       if (regmap_update_bits(regmap, PMIC_A0LOCK_REG, 0x01, 0))
+               return -EIO;
+
+       if (regmap_update_bits(regmap, reg, 0x80, enable << 7))
+               return -EIO;
+
+       /* restore alert0 */
+       if (regmap_write(regmap, PMIC_A0LOCK_REG, alert0))
+               return -EIO;
+
+       return 0;
+}
+
+static struct intel_soc_pmic_opregion_data intel_crc_pmic_opregion_data = {
+       .get_power      = intel_crc_pmic_get_power,
+       .update_power   = intel_crc_pmic_update_power,
+       .get_raw_temp   = intel_crc_pmic_get_raw_temp,
+       .update_aux     = intel_crc_pmic_update_aux,
+       .get_policy     = intel_crc_pmic_get_policy,
+       .update_policy  = intel_crc_pmic_update_policy,
+       .pwr_table      = pwr_table,
+       .pwr_table_count= ARRAY_SIZE(pwr_table),
+       .dptf_table     = dptf_table,
+       .dptf_table_count = ARRAY_SIZE(dptf_table),
+};
+
+static int intel_crc_pmic_opregion_probe(struct platform_device *pdev)
+{
+       struct intel_soc_pmic *pmic = dev_get_drvdata(pdev->dev.parent);
+       return intel_soc_pmic_install_opregion_handler(&pdev->dev,
+                       ACPI_HANDLE(pdev->dev.parent), pmic->regmap,
+                       &intel_crc_pmic_opregion_data);
+}
+
+static int intel_crc_pmic_opregion_remove(struct platform_device *pdev)
+{
+       intel_soc_pmic_remove_opregion_handler(ACPI_HANDLE(pdev->dev.parent));
+       return 0;
+}
+
+#define DRV_NAME "crystal_cove_region"
+
+static struct platform_device_id crystal_cove_opregion_id_table[] = {
+       { .name = DRV_NAME },
+       {},
+};
+
+static struct platform_driver intel_crc_pmic_opregion_driver = {
+       .probe = intel_crc_pmic_opregion_probe,
+       .remove = intel_crc_pmic_opregion_remove,
+       .id_table = crystal_cove_opregion_id_table,
+       .driver = {
+               .name = DRV_NAME,
+       },
+};
+
+MODULE_DEVICE_TABLE(platform, crystal_cove_opregion_id_table);
+
+module_platform_driver(intel_crc_pmic_opregion_driver);
+
+MODULE_DESCRIPTION("CrystalCove ACPI opregion driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/mfd/intel_soc_pmic_opregion.c 
b/drivers/mfd/intel_soc_pmic_opregion.c
new file mode 100644
index 000000000000..62824a35ce97
--- /dev/null
+++ b/drivers/mfd/intel_soc_pmic_opregion.c
@@ -0,0 +1,350 @@
+/*
+ * intel_soc_pmic_opregion.c - Intel SoC PMIC operation region Driver
+ *
+ * Copyright (C) 2014 Intel Corporation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version
+ * 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/module.h>
+#include <linux/acpi.h>
+#include <linux/regmap.h>
+#include "intel_soc_pmic_opregion.h"
+
+#define PMIC_PMOP_OPREGION_ID  0x8d
+#define PMIC_DPTF_OPREGION_ID  0x8c
+
+struct acpi_lpat {
+       int temp;
+       int raw;
+};
+
+struct intel_soc_pmic_opregion {
+       struct mutex lock;
+       struct acpi_lpat *lpat;
+       int lpat_count;
+       struct regmap *regmap;
+       struct intel_soc_pmic_opregion_data *data;
+};
+
+static struct pmic_pwr_reg *
+pmic_get_pwr_reg(int address, struct pmic_pwr_table *table, int count)
+{
+       int i;
+
+       for (i = 0; i < count; i++) {
+               if (table[i].address == address)
+                       return &table[i].pwr_reg;
+       }
+       return NULL;
+}
+
+static int
+pmic_get_dptf_reg(int address, struct pmic_dptf_table *table, int count)
+{
+       int i;
+
+       for (i = 0; i < count; i++) {
+               if (table[i].address == address)
+                       return table[i].reg;
+       }
+       return -ENOENT;
+}
+
+/* Return temperature from raw value through LPAT table */
+static int raw_to_temp(struct acpi_lpat *lpat, int count, int raw)
+{
+       int i, delta_temp, delta_raw, temp;
+
+       for (i = 0; i < count - 1; i++) {
+               if ((raw >= lpat[i].raw && raw <= lpat[i+1].raw) ||
+                   (raw <= lpat[i].raw && raw >= lpat[i+1].raw))
+                       break;
+       }
+
+       if (i == count - 1)
+               return -ENOENT;
+
+       delta_temp = lpat[i+1].temp - lpat[i].temp;
+       delta_raw = lpat[i+1].raw - lpat[i].raw;
+       temp = lpat[i].temp + (raw - lpat[i].raw) * delta_temp / delta_raw;
+
+       return temp;
+}
+
+/* Return raw value from temperature through LPAT table */
+static int temp_to_raw(struct acpi_lpat *lpat, int count, int temp)
+{
+       int i, delta_temp, delta_raw, raw;
+
+       for (i = 0; i < count - 1; i++) {
+               if (temp >= lpat[i].temp && temp <= lpat[i+1].temp)
+                       break;
+       }
+
+       if (i == count - 1)
+               return -ENOENT;
+
+       delta_temp = lpat[i+1].temp - lpat[i].temp;
+       delta_raw = lpat[i+1].raw - lpat[i].raw;
+       raw = lpat[i].raw + (temp - lpat[i].temp) * delta_raw / delta_temp;
+
+       return raw;
+}
+
+static void
+pmic_dptf_lpat(struct intel_soc_pmic_opregion *opregion, acpi_handle handle,
+              struct device *dev)
+{
+       struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
+       union acpi_object *obj_p, *obj_e;
+       int *lpat, i;
+       acpi_status status;
+
+       status = acpi_evaluate_object(handle, "LPAT", NULL, &buffer);
+       if (ACPI_FAILURE(status))
+               return;
+
+       obj_p = (union acpi_object *)buffer.pointer;
+       if (!obj_p || (obj_p->type != ACPI_TYPE_PACKAGE) ||
+           (obj_p->package.count % 2) || (obj_p->package.count < 4))
+               goto out;
+
+       lpat = devm_kmalloc(dev, sizeof(*lpat) * obj_p->package.count,
+                           GFP_KERNEL);
+       if (!lpat)
+               goto out;
+
+       for (i = 0; i < obj_p->package.count; i++) {
+               obj_e = &obj_p->package.elements[i];
+               if (obj_e->type != ACPI_TYPE_INTEGER)
+                       goto out;
+               lpat[i] = obj_e->integer.value;
+       }
+
+       opregion->lpat = (struct acpi_lpat *)lpat;
+       opregion->lpat_count = obj_p->package.count / 2;
+
+out:
+       kfree(buffer.pointer);
+}
+
+static acpi_status
+intel_soc_pmic_pmop_handler(u32 function, acpi_physical_address address,
+                           u32 bits, u64 *value64,
+                           void *handler_context, void *region_context)
+{
+       struct intel_soc_pmic_opregion *opregion = region_context;
+       struct regmap *regmap = opregion->regmap;
+       struct intel_soc_pmic_opregion_data *d = opregion->data;
+       struct pmic_pwr_reg *preg;
+       int result;
+
+       if (bits != 32 || !value64)
+               return AE_BAD_PARAMETER;
+
+       if (function == ACPI_WRITE && !(*value64 == 0 || *value64 == 1))
+               return AE_BAD_PARAMETER;
+
+       preg = pmic_get_pwr_reg(address, d->pwr_table, d->pwr_table_count);
+       if (!preg)
+               return AE_BAD_PARAMETER;
+
+       mutex_lock(&opregion->lock);
+
+       if (function == ACPI_READ)
+               result = d->get_power(regmap, preg, value64);
+       else
+               result = d->update_power(regmap, preg, *value64 == 1);
+
+       mutex_unlock(&opregion->lock);
+
+       return result ? AE_ERROR : AE_OK;
+}
+
+static acpi_status pmic_read_temp(struct intel_soc_pmic_opregion *opregion,
+                                 int reg, u64 *value)
+{
+       int raw_temp, temp;
+
+       if (!opregion->data->get_raw_temp)
+               return AE_BAD_PARAMETER;
+
+       raw_temp = opregion->data->get_raw_temp(opregion->regmap, reg);
+       if (raw_temp < 0)
+               return AE_ERROR;
+
+       if (!opregion->lpat) {
+               *value = raw_temp;
+               return AE_OK;
+       }
+
+       temp = raw_to_temp(opregion->lpat, opregion->lpat_count, raw_temp);
+       if (temp < 0)
+               return AE_ERROR;
+
+       *value = temp;
+       return AE_OK;
+}
+
+static acpi_status pmic_dptf_temp(struct intel_soc_pmic_opregion *opregion,
+                                 int reg, u32 function, u64 *value)
+{
+       if (function != ACPI_READ)
+               return AE_BAD_PARAMETER;
+
+       return pmic_read_temp(opregion, reg, value);
+}
+
+static acpi_status pmic_dptf_aux(struct intel_soc_pmic_opregion *opregion,
+                                int reg, u32 function, u64 *value)
+{
+       int raw_temp;
+
+       if (function == ACPI_READ)
+               return pmic_read_temp(opregion, reg, value);
+
+       if (!opregion->data->update_aux)
+               return AE_BAD_PARAMETER;
+
+       if (opregion->lpat) {
+               raw_temp = temp_to_raw(opregion->lpat, opregion->lpat_count,
+                                        *value);
+               if (raw_temp < 0)
+                       return AE_ERROR;
+       } else {
+               raw_temp = *value;
+       }
+
+       return opregion->data->update_aux(opregion->regmap, reg, raw_temp) ?
+               AE_ERROR : AE_OK;
+}
+
+static acpi_status pmic_dptf_pen(struct intel_soc_pmic_opregion *opregion,
+                                int reg, u32 function, u64 *value)
+{
+       struct intel_soc_pmic_opregion_data *d = opregion->data;
+       struct regmap *regmap = opregion->regmap;
+
+       if (!d->get_policy || !d->update_policy)
+               return AE_BAD_PARAMETER;
+
+       if (function == ACPI_READ)
+               return d->get_policy(regmap, reg, value) ? AE_ERROR : AE_OK;
+
+       if (*value != 0 || *value != 1)
+               return AE_BAD_PARAMETER;
+
+       return d->update_policy(regmap, reg, *value) ? AE_ERROR : AE_OK;
+}
+
+static bool pmic_dptf_is_temp(int address)
+{
+       return (address <= 0x3c) && !(address % 12);
+}
+
+static bool pmic_dptf_is_aux(int address)
+{
+       return (address >= 4 && address <= 0x40 && !((address - 4) % 12)) ||
+              (address >= 8 && address <= 0x44 && !((address - 8) % 12));
+}
+
+static bool pmic_dptf_is_pen(int address)
+{
+       return address >= 0x48 && address <= 0x5c;
+}
+
+static acpi_status
+intel_soc_pmic_dptf_handler(u32 function, acpi_physical_address address,
+                           u32 bits, u64 *value64,
+                           void *handler_context, void *region_context)
+{
+       struct intel_soc_pmic_opregion *opregion = region_context;
+       int reg;
+       int result;
+
+       if (bits != 32 || !value64)
+               return AE_BAD_PARAMETER;
+
+       reg = pmic_get_dptf_reg(address, opregion->data->dptf_table,
+                               opregion->data->dptf_table_count);
+       if (!reg)
+               return AE_BAD_PARAMETER;
+
+       mutex_lock(&opregion->lock);
+
+       result = AE_BAD_PARAMETER;
+       if (pmic_dptf_is_temp(address))
+               result = pmic_dptf_temp(opregion, reg, function, value64);
+       else if (pmic_dptf_is_aux(address))
+               result = pmic_dptf_aux(opregion, reg, function, value64);
+       else if (pmic_dptf_is_pen(address))
+               result = pmic_dptf_pen(opregion, reg, function, value64);
+
+       mutex_unlock(&opregion->lock);
+
+       return result;
+}
+
+int
+intel_soc_pmic_install_opregion_handler(struct device *dev,
+                                       acpi_handle handle,
+                                       struct regmap *regmap,
+                                       struct intel_soc_pmic_opregion_data *d)
+{
+       acpi_status status;
+       struct intel_soc_pmic_opregion *opregion;
+
+       if (!dev || !regmap || !d)
+               return -EINVAL;
+
+       if (!handle)
+               return -ENODEV;
+
+       opregion = devm_kzalloc(dev, sizeof(*opregion), GFP_KERNEL);
+       if (!opregion)
+               return -ENOMEM;
+
+       mutex_init(&opregion->lock);
+       opregion->regmap = regmap;
+       pmic_dptf_lpat(opregion, handle, dev);
+
+       status = acpi_install_address_space_handler(handle,
+                                                   PMIC_PMOP_OPREGION_ID,
+                                                   intel_soc_pmic_pmop_handler,
+                                                   NULL, opregion);
+       if (ACPI_FAILURE(status))
+               return -ENODEV;
+
+       status = acpi_install_address_space_handler(handle,
+                                                   PMIC_DPTF_OPREGION_ID,
+                                                   intel_soc_pmic_dptf_handler,
+                                                   NULL, opregion);
+       if (ACPI_FAILURE(status)) {
+               acpi_remove_address_space_handler(handle, PMIC_PMOP_OPREGION_ID,
+                                                 intel_soc_pmic_pmop_handler);
+               return -ENODEV;
+       }
+
+       opregion->data = d;
+       return 0;
+}
+EXPORT_SYMBOL_GPL(intel_soc_pmic_install_opregion_handler);
+
+void intel_soc_pmic_remove_opregion_handler(acpi_handle handle)
+{
+       acpi_remove_address_space_handler(handle, PMIC_PMOP_OPREGION_ID,
+                                         intel_soc_pmic_pmop_handler);
+       acpi_remove_address_space_handler(handle, PMIC_DPTF_OPREGION_ID,
+                                         intel_soc_pmic_dptf_handler);
+}
+EXPORT_SYMBOL_GPL(intel_soc_pmic_remove_opregion_handler);
+
+MODULE_LICENSE("GPL");
diff --git a/drivers/mfd/intel_soc_pmic_opregion.h 
b/drivers/mfd/intel_soc_pmic_opregion.h
new file mode 100644
index 000000000000..752ec3d2bcbb
--- /dev/null
+++ b/drivers/mfd/intel_soc_pmic_opregion.h
@@ -0,0 +1,35 @@
+#ifndef __INTEL_SOC_PMIC_OPREGION_H
+#define __INTEL_SOC_PMIC_OPREGION_H
+
+struct pmic_pwr_reg {
+       int reg;        /* corresponding PMIC register */
+       int bit;        /* control bit for power */
+};
+
+struct pmic_pwr_table {
+       int address;    /* operation region address */
+       struct pmic_pwr_reg pwr_reg;
+};
+
+struct pmic_dptf_table {
+       int address;    /* operation region address */
+       int reg;        /* corresponding thermal register */
+};
+
+struct intel_soc_pmic_opregion_data {
+       int (*get_power)(struct regmap *r, struct pmic_pwr_reg *preg, u64 
*value);
+       int (*update_power)(struct regmap *r, struct pmic_pwr_reg *preg, bool 
on);
+       int (*get_raw_temp)(struct regmap *r, int reg);
+       int (*update_aux)(struct regmap *r, int reg, int raw_temp);
+       int (*get_policy)(struct regmap *r, int reg, u64 *value);
+       int (*update_policy)(struct regmap *r, int reg, int enable);
+       struct pmic_pwr_table *pwr_table;
+       int pwr_table_count;
+       struct pmic_dptf_table *dptf_table;
+       int dptf_table_count;
+};
+
+int intel_soc_pmic_install_opregion_handler(struct device *dev, acpi_handle 
handle, struct regmap *regmap, struct intel_soc_pmic_opregion_data *d);
+void intel_soc_pmic_remove_opregion_handler(acpi_handle handle);
+
+#endif
-- 
1.9.3

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