diff options
Diffstat (limited to 'drivers/acpi/pmic/intel_pmic_crc.c')
| -rw-r--r-- | drivers/acpi/pmic/intel_pmic_crc.c | 209 |
1 files changed, 0 insertions, 209 deletions
diff --git a/drivers/acpi/pmic/intel_pmic_crc.c b/drivers/acpi/pmic/intel_pmic_crc.c deleted file mode 100644 index d7f1761ab1bc..000000000000 --- a/drivers/acpi/pmic/intel_pmic_crc.c +++ /dev/null @@ -1,209 +0,0 @@ -/* - * intel_pmic_crc.c - Intel CrystalCove 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/init.h> -#include <linux/acpi.h> -#include <linux/mfd/intel_soc_pmic.h> -#include <linux/regmap.h> -#include <linux/platform_device.h> -#include "intel_pmic.h" - -#define PWR_SOURCE_SELECT BIT(1) - -#define PMIC_A0LOCK_REG 0xc5 - -static struct pmic_table power_table[] = { - { - .address = 0x24, - .reg = 0x66, - .bit = 0x00, - }, - { - .address = 0x48, - .reg = 0x5d, - .bit = 0x00, - }, -}; - -static struct pmic_table thermal_table[] = { - { - .address = 0x00, - .reg = 0x75 - }, - { - .address = 0x04, - .reg = 0x95 - }, - { - .address = 0x08, - .reg = 0x97 - }, - { - .address = 0x0c, - .reg = 0x77 - }, - { - .address = 0x10, - .reg = 0x9a - }, - { - .address = 0x14, - .reg = 0x9c - }, - { - .address = 0x18, - .reg = 0x79 - }, - { - .address = 0x1c, - .reg = 0x9f - }, - { - .address = 0x20, - .reg = 0xa1 - }, - { - .address = 0x48, - .reg = 0x94 - }, - { - .address = 0x4c, - .reg = 0x99 - }, - { - .address = 0x50, - .reg = 0x9e - }, -}; - -static int intel_crc_pmic_get_power(struct regmap *regmap, int reg, - int bit, u64 *value) -{ - int data; - - if (regmap_read(regmap, reg, &data)) - return -EIO; - - *value = (data & PWR_SOURCE_SELECT) && (data & BIT(bit)) ? 1 : 0; - return 0; -} - -static int intel_crc_pmic_update_power(struct regmap *regmap, int reg, - int bit, bool on) -{ - int data; - - if (regmap_read(regmap, reg, &data)) - return -EIO; - - if (on) { - data |= PWR_SOURCE_SELECT | BIT(bit); - } else { - data &= ~BIT(bit); - data |= PWR_SOURCE_SELECT; - } - - if (regmap_write(regmap, reg, data)) - return -EIO; - return 0; -} - -static int intel_crc_pmic_get_raw_temp(struct regmap *regmap, int reg) -{ - int temp_l, temp_h; - - /* - * Raw temperature value is 10bits: 8bits in reg - * and 2bits in reg-1: bit0,1 - */ - 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) -{ - return regmap_write(regmap, reg, raw) || - regmap_update_bits(regmap, reg - 1, 0x3, raw >> 8) ? -EIO : 0; -} - -static int intel_crc_pmic_get_policy(struct regmap *regmap, - int reg, int bit, 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 bit, 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_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, - .power_table = power_table, - .power_table_count= ARRAY_SIZE(power_table), - .thermal_table = thermal_table, - .thermal_table_count = ARRAY_SIZE(thermal_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_pmic_install_opregion_handler(&pdev->dev, - ACPI_HANDLE(pdev->dev.parent), pmic->regmap, - &intel_crc_pmic_opregion_data); -} - -static struct platform_driver intel_crc_pmic_opregion_driver = { - .probe = intel_crc_pmic_opregion_probe, - .driver = { - .name = "crystal_cove_pmic", - }, -}; - -static int __init intel_crc_pmic_opregion_driver_init(void) -{ - return platform_driver_register(&intel_crc_pmic_opregion_driver); -} -device_initcall(intel_crc_pmic_opregion_driver_init); |