cregit-Linux how code gets into the kernel

Release 4.10 drivers/regulator/ab8500-ext.c

/*
 * Copyright (C) ST-Ericsson SA 2010
 *
 * License Terms: GNU General Public License v2
 *
 * Authors: Bengt Jonsson <bengt.g.jonsson@stericsson.com>
 *
 * This file is based on drivers/regulator/ab8500.c
 *
 * AB8500 external regulators
 *
 * ab8500-ext supports the following regulators:
 * - VextSupply3
 */
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/err.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#include <linux/regulator/of_regulator.h>
#include <linux/mfd/abx500.h>
#include <linux/mfd/abx500/ab8500.h>
#include <linux/regulator/ab8500.h>


static struct regulator_consumer_supply ab8500_vaux1_consumers[] = {
	/* Main display, u8500 R3 uib */
	REGULATOR_SUPPLY("vddi", "mcde_disp_sony_acx424akp.0"),
	/* Main display, u8500 uib and ST uib */
	REGULATOR_SUPPLY("vdd1", "samsung_s6d16d0.0"),
	/* Secondary display, ST uib */
	REGULATOR_SUPPLY("vdd1", "samsung_s6d16d0.1"),
	/* SFH7741 proximity sensor */
	REGULATOR_SUPPLY("vcc", "gpio-keys.0"),
	/* BH1780GLS ambient light sensor */
	REGULATOR_SUPPLY("vcc", "2-0029"),
	/* lsm303dlh accelerometer */
	REGULATOR_SUPPLY("vdd", "2-0018"),
	/* lsm303dlhc accelerometer */
	REGULATOR_SUPPLY("vdd", "2-0019"),
	/* lsm303dlh magnetometer */
	REGULATOR_SUPPLY("vdd", "2-001e"),
	/* Rohm BU21013 Touchscreen devices */
	REGULATOR_SUPPLY("avdd", "3-005c"),
	REGULATOR_SUPPLY("avdd", "3-005d"),
	/* Synaptics RMI4 Touchscreen device */
	REGULATOR_SUPPLY("vdd", "3-004b"),
	/* L3G4200D Gyroscope device */
	REGULATOR_SUPPLY("vdd", "2-0068"),
	/* Ambient light sensor device */
	REGULATOR_SUPPLY("vdd", "3-0029"),
	/* Pressure sensor device */
	REGULATOR_SUPPLY("vdd", "2-005c"),
	/* Cypress TrueTouch Touchscreen device */
	REGULATOR_SUPPLY("vcpin", "spi8.0"),
	/* Camera device */
	REGULATOR_SUPPLY("vaux12v5", "mmio_camera"),
};


static struct regulator_consumer_supply ab8500_vaux2_consumers[] = {
	/* On-board eMMC power */
	REGULATOR_SUPPLY("vmmc", "sdi4"),
	/* AB8500 audio codec */
	REGULATOR_SUPPLY("vcc-N2158", "ab8500-codec.0"),
	/* AB8500 accessory detect 1 */
	REGULATOR_SUPPLY("vcc-N2158", "ab8500-acc-det.0"),
	/* AB8500 Tv-out device */
	REGULATOR_SUPPLY("vcc-N2158", "mcde_tv_ab8500.4"),
	/* AV8100 HDMI device */
	REGULATOR_SUPPLY("vcc-N2158", "av8100_hdmi.3"),
};


static struct regulator_consumer_supply ab8500_vaux3_consumers[] = {
	REGULATOR_SUPPLY("v-SD-STM", "stm"),
	/* External MMC slot power */
	REGULATOR_SUPPLY("vmmc", "sdi0"),
};


static struct regulator_consumer_supply ab8500_vtvout_consumers[] = {
	/* TV-out DENC supply */
	REGULATOR_SUPPLY("vtvout", "ab8500-denc.0"),
	/* Internal general-purpose ADC */
	REGULATOR_SUPPLY("vddadc", "ab8500-gpadc.0"),
	/* ADC for charger */
	REGULATOR_SUPPLY("vddadc", "ab8500-charger.0"),
	/* AB8500 Tv-out device */
	REGULATOR_SUPPLY("vtvout", "mcde_tv_ab8500.4"),
};


static struct regulator_consumer_supply ab8500_vaud_consumers[] = {
	/* AB8500 audio-codec main supply */
	REGULATOR_SUPPLY("vaud", "ab8500-codec.0"),
};


static struct regulator_consumer_supply ab8500_vamic1_consumers[] = {
	/* AB8500 audio-codec Mic1 supply */
	REGULATOR_SUPPLY("vamic1", "ab8500-codec.0"),
};


static struct regulator_consumer_supply ab8500_vamic2_consumers[] = {
	/* AB8500 audio-codec Mic2 supply */
	REGULATOR_SUPPLY("vamic2", "ab8500-codec.0"),
};


static struct regulator_consumer_supply ab8500_vdmic_consumers[] = {
	/* AB8500 audio-codec DMic supply */
	REGULATOR_SUPPLY("vdmic", "ab8500-codec.0"),
};


static struct regulator_consumer_supply ab8500_vintcore_consumers[] = {
	/* SoC core supply, no device */
	REGULATOR_SUPPLY("v-intcore", NULL),
	/* USB Transceiver */
	REGULATOR_SUPPLY("vddulpivio18", "ab8500-usb.0"),
	/* Handled by abx500 clk driver */
	REGULATOR_SUPPLY("v-intcore", "abx500-clk.0"),
};


static struct regulator_consumer_supply ab8500_vana_consumers[] = {
	/* DB8500 DSI */
	REGULATOR_SUPPLY("vdddsi1v2", "mcde"),
	REGULATOR_SUPPLY("vdddsi1v2", "b2r2_core"),
	REGULATOR_SUPPLY("vdddsi1v2", "b2r2_1_core"),
	REGULATOR_SUPPLY("vdddsi1v2", "dsilink.0"),
	REGULATOR_SUPPLY("vdddsi1v2", "dsilink.1"),
	REGULATOR_SUPPLY("vdddsi1v2", "dsilink.2"),
	/* DB8500 CSI */
	REGULATOR_SUPPLY("vddcsi1v2", "mmio_camera"),
};

/* ab8500 regulator register initialization */

static struct ab8500_regulator_reg_init ab8500_reg_init[] = {
	/*
         * VanaRequestCtrl          = HP/LP depending on VxRequest
         * VextSupply1RequestCtrl   = HP/LP depending on VxRequest
         */
	INIT_REGULATOR_REGISTER(AB8500_REGUREQUESTCTRL2,       0xf0, 0x00),
	/*
         * VextSupply2RequestCtrl   = HP/LP depending on VxRequest
         * VextSupply3RequestCtrl   = HP/LP depending on VxRequest
         * Vaux1RequestCtrl         = HP/LP depending on VxRequest
         * Vaux2RequestCtrl         = HP/LP depending on VxRequest
         */
	INIT_REGULATOR_REGISTER(AB8500_REGUREQUESTCTRL3,       0xff, 0x00),
	/*
         * Vaux3RequestCtrl         = HP/LP depending on VxRequest
         * SwHPReq                  = Control through SWValid disabled
         */
	INIT_REGULATOR_REGISTER(AB8500_REGUREQUESTCTRL4,       0x07, 0x00),
	/*
         * VanaSysClkReq1HPValid    = disabled
         * Vaux1SysClkReq1HPValid   = disabled
         * Vaux2SysClkReq1HPValid   = disabled
         * Vaux3SysClkReq1HPValid   = disabled
         */
	INIT_REGULATOR_REGISTER(AB8500_REGUSYSCLKREQ1HPVALID1, 0xe8, 0x00),
	/*
         * VextSupply1SysClkReq1HPValid = disabled
         * VextSupply2SysClkReq1HPValid = disabled
         * VextSupply3SysClkReq1HPValid = SysClkReq1 controlled
         */
	INIT_REGULATOR_REGISTER(AB8500_REGUSYSCLKREQ1HPVALID2, 0x70, 0x40),
	/*
         * VanaHwHPReq1Valid        = disabled
         * Vaux1HwHPreq1Valid       = disabled
         * Vaux2HwHPReq1Valid       = disabled
         * Vaux3HwHPReqValid        = disabled
         */
	INIT_REGULATOR_REGISTER(AB8500_REGUHWHPREQ1VALID1,     0xe8, 0x00),
	/*
         * VextSupply1HwHPReq1Valid = disabled
         * VextSupply2HwHPReq1Valid = disabled
         * VextSupply3HwHPReq1Valid = disabled
         */
	INIT_REGULATOR_REGISTER(AB8500_REGUHWHPREQ1VALID2,     0x07, 0x00),
	/*
         * VanaHwHPReq2Valid        = disabled
         * Vaux1HwHPReq2Valid       = disabled
         * Vaux2HwHPReq2Valid       = disabled
         * Vaux3HwHPReq2Valid       = disabled
         */
	INIT_REGULATOR_REGISTER(AB8500_REGUHWHPREQ2VALID1,     0xe8, 0x00),
	/*
         * VextSupply1HwHPReq2Valid = disabled
         * VextSupply2HwHPReq2Valid = disabled
         * VextSupply3HwHPReq2Valid = HWReq2 controlled
         */
	INIT_REGULATOR_REGISTER(AB8500_REGUHWHPREQ2VALID2,     0x07, 0x04),
	/*
         * VanaSwHPReqValid         = disabled
         * Vaux1SwHPReqValid        = disabled
         */
	INIT_REGULATOR_REGISTER(AB8500_REGUSWHPREQVALID1,      0xa0, 0x00),
	/*
         * Vaux2SwHPReqValid        = disabled
         * Vaux3SwHPReqValid        = disabled
         * VextSupply1SwHPReqValid  = disabled
         * VextSupply2SwHPReqValid  = disabled
         * VextSupply3SwHPReqValid  = disabled
         */
	INIT_REGULATOR_REGISTER(AB8500_REGUSWHPREQVALID2,      0x1f, 0x00),
	/*
         * SysClkReq2Valid1         = SysClkReq2 controlled
         * SysClkReq3Valid1         = disabled
         * SysClkReq4Valid1         = SysClkReq4 controlled
         * SysClkReq5Valid1         = disabled
         * SysClkReq6Valid1         = SysClkReq6 controlled
         * SysClkReq7Valid1         = disabled
         * SysClkReq8Valid1         = disabled
         */
	INIT_REGULATOR_REGISTER(AB8500_REGUSYSCLKREQVALID1,    0xfe, 0x2a),
	/*
         * SysClkReq2Valid2         = disabled
         * SysClkReq3Valid2         = disabled
         * SysClkReq4Valid2         = disabled
         * SysClkReq5Valid2         = disabled
         * SysClkReq6Valid2         = SysClkReq6 controlled
         * SysClkReq7Valid2         = disabled
         * SysClkReq8Valid2         = disabled
         */
	INIT_REGULATOR_REGISTER(AB8500_REGUSYSCLKREQVALID2,    0xfe, 0x20),
	/*
         * VTVoutEna                = disabled
         * Vintcore12Ena            = disabled
         * Vintcore12Sel            = 1.25 V
         * Vintcore12LP             = inactive (HP)
         * VTVoutLP                 = inactive (HP)
         */
	INIT_REGULATOR_REGISTER(AB8500_REGUMISC1,              0xfe, 0x10),
	/*
         * VaudioEna                = disabled
         * VdmicEna                 = disabled
         * Vamic1Ena                = disabled
         * Vamic2Ena                = disabled
         */
	INIT_REGULATOR_REGISTER(AB8500_VAUDIOSUPPLY,           0x1e, 0x00),
	/*
         * Vamic1_dzout             = high-Z when Vamic1 is disabled
         * Vamic2_dzout             = high-Z when Vamic2 is disabled
         */
	INIT_REGULATOR_REGISTER(AB8500_REGUCTRL1VAMIC,         0x03, 0x00),
	/*
         * VPll                     = Hw controlled (NOTE! PRCMU bits)
         * VanaRegu                 = force off
         */
	INIT_REGULATOR_REGISTER(AB8500_VPLLVANAREGU,           0x0f, 0x02),
	/*
         * VrefDDREna               = disabled
         * VrefDDRSleepMode         = inactive (no pulldown)
         */
	INIT_REGULATOR_REGISTER(AB8500_VREFDDR,                0x03, 0x00),
	/*
         * VextSupply1Regu          = force LP
         * VextSupply2Regu          = force OFF
         * VextSupply3Regu          = force HP (-> STBB2=LP and TPS=LP)
         * ExtSupply2Bypass         = ExtSupply12LPn ball is 0 when Ena is 0
         * ExtSupply3Bypass         = ExtSupply3LPn ball is 0 when Ena is 0
         */
	INIT_REGULATOR_REGISTER(AB8500_EXTSUPPLYREGU,          0xff, 0x13),
	/*
         * Vaux1Regu                = force HP
         * Vaux2Regu                = force off
         */
	INIT_REGULATOR_REGISTER(AB8500_VAUX12REGU,             0x0f, 0x01),
	/*
         * Vaux3Regu                = force off
         */
	INIT_REGULATOR_REGISTER(AB8500_VRF1VAUX3REGU,          0x03, 0x00),
	/*
         * Vaux1Sel                 = 2.8 V
         */
	INIT_REGULATOR_REGISTER(AB8500_VAUX1SEL,               0x0f, 0x0C),
	/*
         * Vaux2Sel                 = 2.9 V
         */
	INIT_REGULATOR_REGISTER(AB8500_VAUX2SEL,               0x0f, 0x0d),
	/*
         * Vaux3Sel                 = 2.91 V
         */
	INIT_REGULATOR_REGISTER(AB8500_VRF1VAUX3SEL,           0x07, 0x07),
	/*
         * VextSupply12LP           = disabled (no LP)
         */
	INIT_REGULATOR_REGISTER(AB8500_REGUCTRL2SPARE,         0x01, 0x00),
	/*
         * Vaux1Disch               = short discharge time
         * Vaux2Disch               = short discharge time
         * Vaux3Disch               = short discharge time
         * Vintcore12Disch          = short discharge time
         * VTVoutDisch              = short discharge time
         * VaudioDisch              = short discharge time
         */
	INIT_REGULATOR_REGISTER(AB8500_REGUCTRLDISCH,          0xfc, 0x00),
	/*
         * VanaDisch                = short discharge time
         * VdmicPullDownEna         = pulldown disabled when Vdmic is disabled
         * VdmicDisch               = short discharge time
         */
	INIT_REGULATOR_REGISTER(AB8500_REGUCTRLDISCH2,         0x16, 0x00),
};

/* AB8500 regulators */

static struct regulator_init_data ab8500_regulators[AB8500_NUM_REGULATORS] = {
	/* supplies to the display/camera */
	[AB8500_LDO_AUX1] = {
		.supply_regulator = "ab8500-ext-supply3",
		.constraints = {
			.name = "V-DISPLAY",
			.min_uV = 2800000,
			.max_uV = 3300000,
			.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
					  REGULATOR_CHANGE_STATUS,
			.boot_on = 1, /* display is on at boot */
		},
		.num_consumer_supplies = ARRAY_SIZE(ab8500_vaux1_consumers),
		.consumer_supplies = ab8500_vaux1_consumers,
        },
	/* supplies to the on-board eMMC */
	[AB8500_LDO_AUX2] = {
		.supply_regulator = "ab8500-ext-supply3",
		.constraints = {
			.name = "V-eMMC1",
			.min_uV = 1100000,
			.max_uV = 3300000,
			.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
					  REGULATOR_CHANGE_STATUS |
					  REGULATOR_CHANGE_MODE,
			.valid_modes_mask = REGULATOR_MODE_NORMAL |
					    REGULATOR_MODE_IDLE,
                },
		.num_consumer_supplies = ARRAY_SIZE(ab8500_vaux2_consumers),
		.consumer_supplies = ab8500_vaux2_consumers,
        },
	/* supply for VAUX3, supplies to SDcard slots */
	[AB8500_LDO_AUX3] = {
		.supply_regulator = "ab8500-ext-supply3",
		.constraints = {
			.name = "V-MMC-SD",
			.min_uV = 1100000,
			.max_uV = 3300000,
			.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
					  REGULATOR_CHANGE_STATUS |
					  REGULATOR_CHANGE_MODE,
			.valid_modes_mask = REGULATOR_MODE_NORMAL |
					    REGULATOR_MODE_IDLE,
                },
		.num_consumer_supplies = ARRAY_SIZE(ab8500_vaux3_consumers),
		.consumer_supplies = ab8500_vaux3_consumers,
        },
	/* supply for tvout, gpadc, TVOUT LDO */
	[AB8500_LDO_TVOUT] = {
		.constraints = {
			.name = "V-TVOUT",
			.valid_ops_mask = REGULATOR_CHANGE_STATUS,
                },
		.num_consumer_supplies = ARRAY_SIZE(ab8500_vtvout_consumers),
		.consumer_supplies = ab8500_vtvout_consumers,
        },
	/* supply for ab8500-vaudio, VAUDIO LDO */
	[AB8500_LDO_AUDIO] = {
		.constraints = {
			.name = "V-AUD",
			.valid_ops_mask = REGULATOR_CHANGE_STATUS,
                },
		.num_consumer_supplies = ARRAY_SIZE(ab8500_vaud_consumers),
		.consumer_supplies = ab8500_vaud_consumers,
        },
	/* supply for v-anamic1 VAMic1-LDO */
	[AB8500_LDO_ANAMIC1] = {
		.constraints = {
			.name = "V-AMIC1",
			.valid_ops_mask = REGULATOR_CHANGE_STATUS,
                },
		.num_consumer_supplies = ARRAY_SIZE(ab8500_vamic1_consumers),
		.consumer_supplies = ab8500_vamic1_consumers,
        },
	/* supply for v-amic2, VAMIC2 LDO, reuse constants for AMIC1 */
	[AB8500_LDO_ANAMIC2] = {
		.constraints = {
			.name = "V-AMIC2",
			.valid_ops_mask = REGULATOR_CHANGE_STATUS,
                },
		.num_consumer_supplies = ARRAY_SIZE(ab8500_vamic2_consumers),
		.consumer_supplies = ab8500_vamic2_consumers,
        },
	/* supply for v-dmic, VDMIC LDO */
	[AB8500_LDO_DMIC] = {
		.constraints = {
			.name = "V-DMIC",
			.valid_ops_mask = REGULATOR_CHANGE_STATUS,
                },
		.num_consumer_supplies = ARRAY_SIZE(ab8500_vdmic_consumers),
		.consumer_supplies = ab8500_vdmic_consumers,
        },
	/* supply for v-intcore12, VINTCORE12 LDO */
	[AB8500_LDO_INTCORE] = {
		.constraints = {
			.name = "V-INTCORE",
			.min_uV = 1250000,
			.max_uV = 1350000,
			.input_uV = 1800000,
			.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
					  REGULATOR_CHANGE_STATUS |
					  REGULATOR_CHANGE_MODE |
					  REGULATOR_CHANGE_DRMS,
			.valid_modes_mask = REGULATOR_MODE_NORMAL |
					    REGULATOR_MODE_IDLE,
                },
		.num_consumer_supplies = ARRAY_SIZE(ab8500_vintcore_consumers),
		.consumer_supplies = ab8500_vintcore_consumers,
        },
	/* supply for U8500 CSI-DSI, VANA LDO */
	[AB8500_LDO_ANA] = {
		.constraints = {
			.name = "V-CSI-DSI",
			.valid_ops_mask = REGULATOR_CHANGE_STATUS,
                },
		.num_consumer_supplies = ARRAY_SIZE(ab8500_vana_consumers),
		.consumer_supplies = ab8500_vana_consumers,
        },
};

/* supply for VextSupply3 */

static struct regulator_consumer_supply ab8500_ext_supply3_consumers[] = {
	/* SIM supply for 3 V SIM cards */
	REGULATOR_SUPPLY("vinvsim", "sim-detect.0"),
};

/*
 * AB8500 external regulators
 */

static struct regulator_init_data ab8500_ext_regulators[] = {
	/* fixed Vbat supplies VSMPS1_EXT_1V8 */
	[AB8500_EXT_SUPPLY1] = {
		.constraints = {
			.name = "ab8500-ext-supply1",
			.min_uV = 1800000,
			.max_uV = 1800000,
			.initial_mode = REGULATOR_MODE_IDLE,
			.boot_on = 1,
			.always_on = 1,
                },
        },
	/* fixed Vbat supplies VSMPS2_EXT_1V36 and VSMPS5_EXT_1V15 */
	[AB8500_EXT_SUPPLY2] = {
		.constraints = {
			.name = "ab8500-ext-supply2",
			.min_uV = 1360000,
			.max_uV = 1360000,
                },
        },
	/* fixed Vbat supplies VSMPS3_EXT_3V4 and VSMPS4_EXT_3V4 */
	[AB8500_EXT_SUPPLY3] = {
		.constraints = {
			.name = "ab8500-ext-supply3",
			.min_uV = 3400000,
			.max_uV = 3400000,
			.valid_ops_mask = REGULATOR_CHANGE_STATUS,
			.boot_on = 1,
                },
		.num_consumer_supplies =
			ARRAY_SIZE(ab8500_ext_supply3_consumers),
		.consumer_supplies = ab8500_ext_supply3_consumers,
        },
};


static struct ab8500_regulator_platform_data ab8500_regulator_plat_data = {
	.reg_init               = ab8500_reg_init,
	.num_reg_init           = ARRAY_SIZE(ab8500_reg_init),
	.regulator              = ab8500_regulators,
	.num_regulator          = ARRAY_SIZE(ab8500_regulators),
	.ext_regulator          = ab8500_ext_regulators,
	.num_ext_regulator      = ARRAY_SIZE(ab8500_ext_regulators),
};

/**
 * struct ab8500_ext_regulator_info - ab8500 regulator information
 * @dev: device pointer
 * @desc: regulator description
 * @rdev: regulator device
 * @cfg: regulator configuration (extension of regulator FW configuration)
 * @update_bank: bank to control on/off
 * @update_reg: register to control on/off
 * @update_mask: mask to enable/disable and set mode of regulator
 * @update_val: bits holding the regulator current mode
 * @update_val_hp: bits to set EN pin active (LPn pin deactive)
 *                 normally this means high power mode
 * @update_val_lp: bits to set EN pin active and LPn pin active
 *                 normally this means low power mode
 * @update_val_hw: bits to set regulator pins in HW control
 *                 SysClkReq pins and logic will choose mode
 */

struct ab8500_ext_regulator_info {
	
struct device *dev;
	
struct regulator_desc desc;
	
struct regulator_dev *rdev;
	
struct ab8500_ext_regulator_cfg *cfg;
	
u8 update_bank;
	
u8 update_reg;
	
u8 update_mask;
	
u8 update_val;
	
u8 update_val_hp;
	
u8 update_val_lp;
	
u8 update_val_hw;
};


static int ab8500_ext_regulator_enable(struct regulator_dev *rdev) { int ret; struct ab8500_ext_regulator_info *info = rdev_get_drvdata(rdev); u8 regval; if (info == NULL) { dev_err(rdev_get_dev(rdev), "regulator info null pointer\n"); return -EINVAL; } /* * To satisfy both HW high power request and SW request, the regulator * must be on in high power. */ if (info->cfg && info->cfg->hwreq) regval = info->update_val_hp; else regval = info->update_val; ret = abx500_mask_and_set_register_interruptible(info->dev, info->update_bank, info->update_reg, info->update_mask, regval); if (ret < 0) { dev_err(rdev_get_dev(info->rdev), "couldn't set enable bits for regulator\n"); return ret; } dev_dbg(rdev_get_dev(rdev), "%s-enable (bank, reg, mask, value): 0x%02x, 0x%02x, 0x%02x, 0x%02x\n", info->desc.name, info->update_bank, info->update_reg, info->update_mask, regval); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
axel linaxel lin7850.65%250.00%
lee joneslee jones5535.71%125.00%
bengt jonssonbengt jonsson2113.64%125.00%
Total154100.00%4100.00%


static int ab8500_ext_regulator_disable(struct regulator_dev *rdev) { int ret; struct ab8500_ext_regulator_info *info = rdev_get_drvdata(rdev); u8 regval; if (info == NULL) { dev_err(rdev_get_dev(rdev), "regulator info null pointer\n"); return -EINVAL; } /* * Set the regulator in HW request mode if configured */ if (info->cfg && info->cfg->hwreq) regval = info->update_val_hw; else regval = 0; ret = abx500_mask_and_set_register_interruptible(info->dev, info->update_bank, info->update_reg, info->update_mask, regval); if (ret < 0) { dev_err(rdev_get_dev(info->rdev), "couldn't set disable bits for regulator\n"); return ret; } dev_dbg(rdev_get_dev(rdev), "%s-disable (bank, reg, mask, value):" " 0x%02x, 0x%02x, 0x%02x, 0x%02x\n", info->desc.name, info->update_bank, info->update_reg, info->update_mask, regval); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
lee joneslee jones7850.98%125.00%
bengt jonssonbengt jonsson6341.18%125.00%
axel linaxel lin127.84%250.00%
Total153100.00%4100.00%


static int ab8500_ext_regulator_is_enabled(struct regulator_dev *rdev) { int ret; struct ab8500_ext_regulator_info *info = rdev_get_drvdata(rdev); u8 regval; if (info == NULL) { dev_err(rdev_get_dev(rdev), "regulator info null pointer\n"); return -EINVAL; } ret = abx500_get_register_interruptible(info->dev, info->update_bank, info->update_reg, &regval); if (ret < 0) { dev_err(rdev_get_dev(rdev), "couldn't read 0x%x register\n", info->update_reg); return ret; } dev_dbg(rdev_get_dev(rdev), "%s-is_enabled (bank, reg, mask, value):" " 0x%02x, 0x%02x, 0x%02x, 0x%02x\n", info->desc.name, info->update_bank, info->update_reg, info->update_mask, regval); if (((regval & info->update_mask) == info->update_val_lp) || ((regval & info->update_mask) == info->update_val_hp)) return 1; else return 0; }

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lee joneslee jones13683.95%133.33%
bengt jonssonbengt jonsson2213.58%133.33%
axel linaxel lin42.47%133.33%
Total162100.00%3100.00%


static int ab8500_ext_regulator_set_mode(struct regulator_dev *rdev, unsigned int mode) { int ret = 0; struct ab8500_ext_regulator_info *info = rdev_get_drvdata(rdev); u8 regval; if (info == NULL) { dev_err(rdev_get_dev(rdev), "regulator info null pointer\n"); return -EINVAL; } switch (mode) { case REGULATOR_MODE_NORMAL: regval = info->update_val_hp; break; case REGULATOR_MODE_IDLE: regval = info->update_val_lp; break; default: return -EINVAL; } /* If regulator is enabled and info->cfg->hwreq is set, the regulator must be on in high power, so we don't need to write the register with the same value. */ if (ab8500_ext_regulator_is_enabled(rdev) && !(info->cfg && info->cfg->hwreq)) { ret = abx500_mask_and_set_register_interruptible(info->dev, info->update_bank, info->update_reg, info->update_mask, regval); if (ret < 0) { dev_err(rdev_get_dev(rdev), "Could not set regulator mode.\n"); return ret; } dev_dbg(rdev_get_dev(rdev), "%s-set_mode (bank, reg, mask, value): " "0x%x, 0x%x, 0x%x, 0x%x\n", info->desc.name, info->update_bank, info->update_reg, info->update_mask, regval); } info->update_val = regval; return 0; }

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lee joneslee jones14374.09%133.33%
axel linaxel lin5025.91%266.67%
Total193100.00%3100.00%


static unsigned int ab8500_ext_regulator_get_mode(struct regulator_dev *rdev) { struct ab8500_ext_regulator_info *info = rdev_get_drvdata(rdev); int ret; if (info == NULL) { dev_err(rdev_get_dev(rdev), "regulator info null pointer\n"); return -EINVAL; } if (info->update_val == info->update_val_hp) ret = REGULATOR_MODE_NORMAL; else if (info->update_val == info->update_val_lp) ret = REGULATOR_MODE_IDLE; else ret = -EINVAL; return ret; }

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lee joneslee jones85100.00%1100.00%
Total85100.00%1100.00%


static int ab8500_ext_set_voltage(struct regulator_dev *rdev, int min_uV, int max_uV, unsigned *selector) { struct regulation_constraints *regu_constraints = rdev->constraints; if (!regu_constraints) { dev_err(rdev_get_dev(rdev), "No regulator constraints\n"); return -EINVAL; } if (regu_constraints->min_uV == min_uV && regu_constraints->max_uV == max_uV) return 0; dev_err(rdev_get_dev(rdev), "Requested min %duV max %duV != constrained min %duV max %duV\n", min_uV, max_uV, regu_constraints->min_uV, regu_constraints->max_uV); return -EINVAL; }

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lee joneslee jones94100.00%1100.00%
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static int ab8500_ext_list_voltage(struct regulator_dev *rdev, unsigned selector) { struct regulation_constraints *regu_constraints = rdev->constraints; if (regu_constraints == NULL) { dev_err(rdev_get_dev(rdev), "regulator constraints null pointer\n"); return -EINVAL; } /* return the uV for the fixed regulators */ if (regu_constraints->min_uV && regu_constraints->max_uV) { if (regu_constraints->min_uV == regu_constraints->max_uV) return regu_constraints->min_uV; } return -EINVAL; }

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lee joneslee jones77100.00%1100.00%
Total77100.00%1100.00%

static struct regulator_ops ab8500_ext_regulator_ops = { .enable = ab8500_ext_regulator_enable, .disable = ab8500_ext_regulator_disable, .is_enabled = ab8500_ext_regulator_is_enabled, .set_mode = ab8500_ext_regulator_set_mode, .get_mode = ab8500_ext_regulator_get_mode, .set_voltage = ab8500_ext_set_voltage, .list_voltage = ab8500_ext_list_voltage, }; static struct ab8500_ext_regulator_info ab8500_ext_regulator_info[AB8500_NUM_EXT_REGULATORS] = { [AB8500_EXT_SUPPLY1] = { .desc = { .name = "VEXTSUPPLY1", .ops = &ab8500_ext_regulator_ops, .type = REGULATOR_VOLTAGE, .id = AB8500_EXT_SUPPLY1, .owner = THIS_MODULE, .n_voltages = 1, }, .update_bank = 0x04, .update_reg = 0x08, .update_mask = 0x03, .update_val = 0x01, .update_val_hp = 0x01, .update_val_lp = 0x03, .update_val_hw = 0x02, }, [AB8500_EXT_SUPPLY2] = { .desc = { .name = "VEXTSUPPLY2", .ops = &ab8500_ext_regulator_ops, .type = REGULATOR_VOLTAGE, .id = AB8500_EXT_SUPPLY2, .owner = THIS_MODULE, .n_voltages = 1, }, .update_bank = 0x04, .update_reg = 0x08, .update_mask = 0x0c, .update_val = 0x04, .update_val_hp = 0x04, .update_val_lp = 0x0c, .update_val_hw = 0x08, }, [AB8500_EXT_SUPPLY3] = { .desc = { .name = "VEXTSUPPLY3", .ops = &ab8500_ext_regulator_ops, .type = REGULATOR_VOLTAGE, .id = AB8500_EXT_SUPPLY3, .owner = THIS_MODULE, .n_voltages = 1, }, .update_bank = 0x04, .update_reg = 0x08, .update_mask = 0x30, .update_val = 0x10, .update_val_hp = 0x10, .update_val_lp = 0x30, .update_val_hw = 0x20, }, }; static struct of_regulator_match ab8500_ext_regulator_match[] = { { .name = "ab8500_ext1", .driver_data = (void *) AB8500_EXT_SUPPLY1, }, { .name = "ab8500_ext2", .driver_data = (void *) AB8500_EXT_SUPPLY2, }, { .name = "ab8500_ext3", .driver_data = (void *) AB8500_EXT_SUPPLY3, }, };
static int ab8500_ext_regulator_probe(struct platform_device *pdev) { struct ab8500 *ab8500 = dev_get_drvdata(pdev->dev.parent); struct ab8500_regulator_platform_data *pdata = &ab8500_regulator_plat_data; struct device_node *np = pdev->dev.of_node; struct regulator_config config = { }; int i, err; if (np) { err = of_regulator_match(&pdev->dev, np, ab8500_ext_regulator_match, ARRAY_SIZE(ab8500_ext_regulator_match)); if (err < 0) { dev_err(&pdev->dev, "Error parsing regulator init data: %d\n", err); return err; } } if (!ab8500) { dev_err(&pdev->dev, "null mfd parent\n"); return -EINVAL; } /* make sure the platform data has the correct size */ if (pdata->num_ext_regulator != ARRAY_SIZE(ab8500_ext_regulator_info)) { dev_err(&pdev->dev, "Configuration error: size mismatch.\n"); return -EINVAL; } /* check for AB8500 2.x */ if (is_ab8500_2p0_or_earlier(ab8500)) { struct ab8500_ext_regulator_info *info; /* VextSupply3LPn is inverted on AB8500 2.x */ info = &ab8500_ext_regulator_info[AB8500_EXT_SUPPLY3]; info->update_val = 0x30; info->update_val_hp = 0x30; info->update_val_lp = 0x10; } /* register all regulators */ for (i = 0; i < ARRAY_SIZE(ab8500_ext_regulator_info); i++) { struct ab8500_ext_regulator_info *info = NULL; /* assign per-regulator data */ info = &ab8500_ext_regulator_info[i]; info->dev = &pdev->dev; info->cfg = (struct ab8500_ext_regulator_cfg *) pdata->ext_regulator[i].driver_data; config.dev = &pdev->dev; config.driver_data = info; config.of_node = ab8500_ext_regulator_match[i].of_node; config.init_data = (np) ? ab8500_ext_regulator_match[i].init_data : &pdata->ext_regulator[i]; /* register regulator with framework */ info->rdev = devm_regulator_register(&pdev->dev, &info->desc, &config); if (IS_ERR(info->rdev)) { err = PTR_ERR(info->rdev); dev_err(&pdev->dev, "failed to register regulator %s\n", info->desc.name); return err; } dev_dbg(rdev_get_dev(info->rdev), "%s-probed\n", info->desc.name); } return 0; }

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lee joneslee jones35491.71%337.50%
bengt jonssonbengt jonsson225.70%225.00%
jingoo hanjingoo han61.55%112.50%
arnd bergmannarnd bergmann30.78%112.50%
sachin kamatsachin kamat10.26%112.50%
Total386100.00%8100.00%

static struct platform_driver ab8500_ext_regulator_driver = { .probe = ab8500_ext_regulator_probe, .driver = { .name = "ab8500-ext-regulator", }, };
static int __init ab8500_ext_regulator_init(void) { int ret; ret = platform_driver_register(&ab8500_ext_regulator_driver); if (ret) pr_err("Failed to register ab8500 ext regulator: %d\n", ret); return ret; }

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subsys_initcall(ab8500_ext_regulator_init);
static void __exit ab8500_ext_regulator_exit(void) { platform_driver_unregister(&ab8500_ext_regulator_driver); }

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lee joneslee jones15100.00%2100.00%
Total15100.00%2100.00%

module_exit(ab8500_ext_regulator_exit); MODULE_LICENSE("GPL v2"); MODULE_AUTHOR("Bengt Jonsson <bengt.g.jonsson@stericsson.com>"); MODULE_DESCRIPTION("AB8500 external regulator driver"); MODULE_ALIAS("platform:ab8500-ext-regulator");

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lee joneslee jones152748.28%430.77%
arnd bergmannarnd bergmann133942.33%17.69%
bengt jonssonbengt jonsson1454.58%215.38%
axel linaxel lin1454.58%430.77%
jingoo hanjingoo han60.19%17.69%
sachin kamatsachin kamat10.03%17.69%
Total3163100.00%13100.00%
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