| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Tony Lindgren | 1880 | 70.81% | 1 | 9.09% |
| Peter Geis | 723 | 27.23% | 2 | 18.18% |
| Sebastian Reichel | 38 | 1.43% | 2 | 18.18% |
| Axel Lin | 10 | 0.38% | 3 | 27.27% |
| Lee Jones | 2 | 0.08% | 1 | 9.09% |
| Rikard Falkeborn | 1 | 0.04% | 1 | 9.09% |
| Doug Anderson | 1 | 0.04% | 1 | 9.09% |
| Total | 2655 | 11 |
/* * Motorola CPCAP PMIC regulator driver * * Based on cpcap-regulator.c from Motorola Linux kernel tree * Copyright (C) 2009-2011 Motorola, Inc. * * Rewritten for mainline kernel to use device tree and regmap * Copyright (C) 2017 Tony Lindgren <tony@atomide.com> * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as * published by the Free Software Foundation version 2. * * This program is distributed "as is" WITHOUT ANY WARRANTY of any * kind, whether express or implied; without even the implied warranty * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. */ #include <linux/err.h> #include <linux/module.h> #include <linux/of.h> #include <linux/of_platform.h> #include <linux/regmap.h> #include <linux/regulator/driver.h> #include <linux/regulator/machine.h> #include <linux/regulator/of_regulator.h> #include <linux/mfd/motorola-cpcap.h> /* * Resource assignment register bits. These seem to control the state * idle modes adn are used at least for omap4. */ /* CPCAP_REG_ASSIGN2 bits - Resource Assignment 2 */ #define CPCAP_BIT_VSDIO_SEL BIT(15) #define CPCAP_BIT_VDIG_SEL BIT(14) #define CPCAP_BIT_VCAM_SEL BIT(13) #define CPCAP_BIT_SW6_SEL BIT(12) #define CPCAP_BIT_SW5_SEL BIT(11) #define CPCAP_BIT_SW4_SEL BIT(10) #define CPCAP_BIT_SW3_SEL BIT(9) #define CPCAP_BIT_SW2_SEL BIT(8) #define CPCAP_BIT_SW1_SEL BIT(7) /* CPCAP_REG_ASSIGN3 bits - Resource Assignment 3 */ #define CPCAP_BIT_VUSBINT2_SEL BIT(15) #define CPCAP_BIT_VUSBINT1_SEL BIT(14) #define CPCAP_BIT_VVIB_SEL BIT(13) #define CPCAP_BIT_VWLAN1_SEL BIT(12) #define CPCAP_BIT_VRF1_SEL BIT(11) #define CPCAP_BIT_VHVIO_SEL BIT(10) #define CPCAP_BIT_VDAC_SEL BIT(9) #define CPCAP_BIT_VUSB_SEL BIT(8) #define CPCAP_BIT_VSIM_SEL BIT(7) #define CPCAP_BIT_VRFREF_SEL BIT(6) #define CPCAP_BIT_VPLL_SEL BIT(5) #define CPCAP_BIT_VFUSE_SEL BIT(4) #define CPCAP_BIT_VCSI_SEL BIT(3) #define CPCAP_BIT_SPARE_14_2 BIT(2) #define CPCAP_BIT_VWLAN2_SEL BIT(1) #define CPCAP_BIT_VRF2_SEL BIT(0) /* CPCAP_REG_ASSIGN4 bits - Resource Assignment 4 */ #define CPCAP_BIT_VAUDIO_SEL BIT(0) /* * Enable register bits. At least CPCAP_BIT_AUDIO_LOW_PWR is generic, * and not limited to audio regulator. Let's use the Motorola kernel * naming for now until we have a better understanding of the other * enable register bits. No idea why BIT(3) is not defined. */ #define CPCAP_BIT_AUDIO_LOW_PWR BIT(6) #define CPCAP_BIT_AUD_LOWPWR_SPEED BIT(5) #define CPCAP_BIT_VAUDIOPRISTBY BIT(4) #define CPCAP_BIT_VAUDIO_MODE1 BIT(2) #define CPCAP_BIT_VAUDIO_MODE0 BIT(1) #define CPCAP_BIT_V_AUDIO_EN BIT(0) #define CPCAP_BIT_AUDIO_NORMAL_MODE 0x00 /* * Off mode configuration bit. Used currently only by SW5 on omap4. There's * the following comment in Motorola Linux kernel tree for it: * * When set in the regulator mode, the regulator assignment will be changed * to secondary when the regulator is disabled. The mode will be set back to * primary when the regulator is turned on. */ #define CPCAP_REG_OFF_MODE_SEC BIT(15) /* * SoC specific configuration for CPCAP regulator. There are at least three * different SoCs each with their own parameters: omap3, omap4 and tegra2. * * The assign_reg and assign_mask seem to allow toggling between primary * and secondary mode that at least omap4 uses for off mode. */ struct cpcap_regulator { struct regulator_desc rdesc; const u16 assign_reg; const u16 assign_mask; }; #define CPCAP_REG(_ID, reg, assignment_reg, assignment_mask, val_tbl, \ mode_mask, volt_mask, mode_val, off_val, \ volt_trans_time) { \ .rdesc = { \ .name = #_ID, \ .of_match = of_match_ptr(#_ID), \ .ops = &cpcap_regulator_ops, \ .regulators_node = of_match_ptr("regulators"), \ .type = REGULATOR_VOLTAGE, \ .id = CPCAP_##_ID, \ .owner = THIS_MODULE, \ .n_voltages = ARRAY_SIZE(val_tbl), \ .volt_table = (val_tbl), \ .vsel_reg = (reg), \ .vsel_mask = (volt_mask), \ .enable_reg = (reg), \ .enable_mask = (mode_mask), \ .enable_val = (mode_val), \ .disable_val = (off_val), \ .ramp_delay = (volt_trans_time), \ .of_map_mode = cpcap_map_mode, \ }, \ .assign_reg = (assignment_reg), \ .assign_mask = (assignment_mask), \ } struct cpcap_ddata { struct regmap *reg; struct device *dev; const struct cpcap_regulator *soc; }; enum cpcap_regulator_id { CPCAP_SW1, CPCAP_SW2, CPCAP_SW3, CPCAP_SW4, CPCAP_SW5, CPCAP_SW6, CPCAP_VCAM, CPCAP_VCSI, CPCAP_VDAC, CPCAP_VDIG, CPCAP_VFUSE, CPCAP_VHVIO, CPCAP_VSDIO, CPCAP_VPLL, CPCAP_VRF1, CPCAP_VRF2, CPCAP_VRFREF, CPCAP_VWLAN1, CPCAP_VWLAN2, CPCAP_VSIM, CPCAP_VSIMCARD, CPCAP_VVIB, CPCAP_VUSB, CPCAP_VAUDIO, CPCAP_NR_REGULATORS, }; /* * We need to also configure regulator idle mode for SoC off mode if * CPCAP_REG_OFF_MODE_SEC is set. */ static int cpcap_regulator_enable(struct regulator_dev *rdev) { struct cpcap_regulator *regulator = rdev_get_drvdata(rdev); int error; error = regulator_enable_regmap(rdev); if (error) return error; if (rdev->desc->enable_val & CPCAP_REG_OFF_MODE_SEC) { error = regmap_update_bits(rdev->regmap, regulator->assign_reg, regulator->assign_mask, regulator->assign_mask); if (error) regulator_disable_regmap(rdev); } return error; } /* * We need to also configure regulator idle mode for SoC off mode if * CPCAP_REG_OFF_MODE_SEC is set. */ static int cpcap_regulator_disable(struct regulator_dev *rdev) { struct cpcap_regulator *regulator = rdev_get_drvdata(rdev); int error; if (rdev->desc->enable_val & CPCAP_REG_OFF_MODE_SEC) { error = regmap_update_bits(rdev->regmap, regulator->assign_reg, regulator->assign_mask, 0); if (error) return error; } error = regulator_disable_regmap(rdev); if (error && (rdev->desc->enable_val & CPCAP_REG_OFF_MODE_SEC)) { regmap_update_bits(rdev->regmap, regulator->assign_reg, regulator->assign_mask, regulator->assign_mask); } return error; } static unsigned int cpcap_map_mode(unsigned int mode) { switch (mode) { case CPCAP_BIT_AUDIO_NORMAL_MODE: return REGULATOR_MODE_NORMAL; case CPCAP_BIT_AUDIO_LOW_PWR: return REGULATOR_MODE_STANDBY; default: return REGULATOR_MODE_INVALID; } } static unsigned int cpcap_regulator_get_mode(struct regulator_dev *rdev) { int value; regmap_read(rdev->regmap, rdev->desc->enable_reg, &value); if (value & CPCAP_BIT_AUDIO_LOW_PWR) return REGULATOR_MODE_STANDBY; return REGULATOR_MODE_NORMAL; } static int cpcap_regulator_set_mode(struct regulator_dev *rdev, unsigned int mode) { int value; switch (mode) { case REGULATOR_MODE_NORMAL: value = CPCAP_BIT_AUDIO_NORMAL_MODE; break; case REGULATOR_MODE_STANDBY: value = CPCAP_BIT_AUDIO_LOW_PWR; break; default: return -EINVAL; } return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg, CPCAP_BIT_AUDIO_LOW_PWR, value); } static const struct regulator_ops cpcap_regulator_ops = { .enable = cpcap_regulator_enable, .disable = cpcap_regulator_disable, .is_enabled = regulator_is_enabled_regmap, .list_voltage = regulator_list_voltage_table, .map_voltage = regulator_map_voltage_iterate, .get_voltage_sel = regulator_get_voltage_sel_regmap, .set_voltage_sel = regulator_set_voltage_sel_regmap, .get_mode = cpcap_regulator_get_mode, .set_mode = cpcap_regulator_set_mode, }; static const unsigned int unknown_val_tbl[] = { 0, }; static const unsigned int sw2_sw4_val_tbl[] = { 612500, 625000, 637500, 650000, 662500, 675000, 687500, 700000, 712500, 725000, 737500, 750000, 762500, 775000, 787500, 800000, 812500, 825000, 837500, 850000, 862500, 875000, 887500, 900000, 912500, 925000, 937500, 950000, 962500, 975000, 987500, 1000000, 1012500, 1025000, 1037500, 1050000, 1062500, 1075000, 1087500, 1100000, 1112500, 1125000, 1137500, 1150000, 1162500, 1175000, 1187500, 1200000, 1212500, 1225000, 1237500, 1250000, 1262500, 1275000, 1287500, 1300000, 1312500, 1325000, 1337500, 1350000, 1362500, 1375000, 1387500, 1400000, 1412500, 1425000, 1437500, 1450000, 1462500, }; static const unsigned int sw5_val_tbl[] = { 0, 5050000, }; static const unsigned int vcam_val_tbl[] = { 2600000, 2700000, 2800000, 2900000, }; static const unsigned int vcsi_val_tbl[] = { 1200000, 1800000, }; static const unsigned int vdac_val_tbl[] = { 1200000, 1500000, 1800000, 2500000,}; static const unsigned int vdig_val_tbl[] = { 1200000, 1350000, 1500000, 1875000, }; static const unsigned int vfuse_val_tbl[] = { 1500000, 1600000, 1700000, 1800000, 1900000, 2000000, 2100000, 2200000, 2300000, 2400000, 2500000, 2600000, 2700000, 3150000, }; static const unsigned int vhvio_val_tbl[] = { 2775000, }; static const unsigned int vsdio_val_tbl[] = { 1500000, 1600000, 1800000, 2600000, 2700000, 2800000, 2900000, 3000000, }; static const unsigned int vpll_val_tbl[] = { 1200000, 1300000, 1400000, 1800000, }; /* Quirk: 2775000 is before 2500000 for vrf1 regulator */ static const unsigned int vrf1_val_tbl[] = { 2775000, 2500000, }; static const unsigned int vrf2_val_tbl[] = { 0, 2775000, }; static const unsigned int vrfref_val_tbl[] = { 2500000, 2775000, }; static const unsigned int vwlan1_val_tbl[] = { 1800000, 1900000, }; static const unsigned int vwlan2_val_tbl[] = { 2775000, 3000000, 3300000, 3300000, }; static const unsigned int vsim_val_tbl[] = { 1800000, 2900000, }; static const unsigned int vsimcard_val_tbl[] = { 1800000, 2900000, }; static const unsigned int vvib_val_tbl[] = { 1300000, 1800000, 2000000, 3000000, }; static const unsigned int vusb_val_tbl[] = { 0, 3300000, }; static const unsigned int vaudio_val_tbl[] = { 0, 2775000, }; /* * SoC specific configuration for omap4. The data below is comes from Motorola * Linux kernel tree. It's basically the values of cpcap_regltr_data, * cpcap_regulator_mode_values and cpcap_regulator_off_mode_values, see * CPCAP_REG macro above. * * SW1 to SW4 and SW6 seems to be unused for mapphone. Note that VSIM and * VSIMCARD have a shared resource assignment bit. */ static const struct cpcap_regulator omap4_regulators[] = { CPCAP_REG(SW1, CPCAP_REG_S1C1, CPCAP_REG_ASSIGN2, CPCAP_BIT_SW1_SEL, unknown_val_tbl, 0, 0, 0, 0, 0), CPCAP_REG(SW2, CPCAP_REG_S2C1, CPCAP_REG_ASSIGN2, CPCAP_BIT_SW2_SEL, unknown_val_tbl, 0, 0, 0, 0, 0), CPCAP_REG(SW3, CPCAP_REG_S3C, CPCAP_REG_ASSIGN2, CPCAP_BIT_SW3_SEL, unknown_val_tbl, 0, 0, 0, 0, 0), CPCAP_REG(SW4, CPCAP_REG_S4C1, CPCAP_REG_ASSIGN2, CPCAP_BIT_SW4_SEL, unknown_val_tbl, 0, 0, 0, 0, 0), CPCAP_REG(SW5, CPCAP_REG_S5C, CPCAP_REG_ASSIGN2, CPCAP_BIT_SW5_SEL, sw5_val_tbl, 0x28, 0, 0x20 | CPCAP_REG_OFF_MODE_SEC, 0, 0), CPCAP_REG(SW6, CPCAP_REG_S6C, CPCAP_REG_ASSIGN2, CPCAP_BIT_SW6_SEL, unknown_val_tbl, 0, 0, 0, 0, 0), CPCAP_REG(VCAM, CPCAP_REG_VCAMC, CPCAP_REG_ASSIGN2, CPCAP_BIT_VCAM_SEL, vcam_val_tbl, 0x87, 0x30, 0x3, 0, 420), CPCAP_REG(VCSI, CPCAP_REG_VCSIC, CPCAP_REG_ASSIGN3, CPCAP_BIT_VCSI_SEL, vcsi_val_tbl, 0x47, 0x10, 0x43, 0x41, 350), CPCAP_REG(VDAC, CPCAP_REG_VDACC, CPCAP_REG_ASSIGN3, CPCAP_BIT_VDAC_SEL, vdac_val_tbl, 0x87, 0x30, 0x3, 0, 420), CPCAP_REG(VDIG, CPCAP_REG_VDIGC, CPCAP_REG_ASSIGN2, CPCAP_BIT_VDIG_SEL, vdig_val_tbl, 0x87, 0x30, 0x82, 0, 420), CPCAP_REG(VFUSE, CPCAP_REG_VFUSEC, CPCAP_REG_ASSIGN3, CPCAP_BIT_VFUSE_SEL, vfuse_val_tbl, 0x80, 0xf, 0x80, 0, 420), CPCAP_REG(VHVIO, CPCAP_REG_VHVIOC, CPCAP_REG_ASSIGN3, CPCAP_BIT_VHVIO_SEL, vhvio_val_tbl, 0x17, 0, 0, 0x12, 0), CPCAP_REG(VSDIO, CPCAP_REG_VSDIOC, CPCAP_REG_ASSIGN2, CPCAP_BIT_VSDIO_SEL, vsdio_val_tbl, 0x87, 0x38, 0x82, 0, 420), CPCAP_REG(VPLL, CPCAP_REG_VPLLC, CPCAP_REG_ASSIGN3, CPCAP_BIT_VPLL_SEL, vpll_val_tbl, 0x43, 0x18, 0x2, 0, 420), CPCAP_REG(VRF1, CPCAP_REG_VRF1C, CPCAP_REG_ASSIGN3, CPCAP_BIT_VRF1_SEL, vrf1_val_tbl, 0xac, 0x2, 0x4, 0, 10), CPCAP_REG(VRF2, CPCAP_REG_VRF2C, CPCAP_REG_ASSIGN3, CPCAP_BIT_VRF2_SEL, vrf2_val_tbl, 0x23, 0x8, 0, 0, 10), CPCAP_REG(VRFREF, CPCAP_REG_VRFREFC, CPCAP_REG_ASSIGN3, CPCAP_BIT_VRFREF_SEL, vrfref_val_tbl, 0x23, 0x8, 0, 0, 420), CPCAP_REG(VWLAN1, CPCAP_REG_VWLAN1C, CPCAP_REG_ASSIGN3, CPCAP_BIT_VWLAN1_SEL, vwlan1_val_tbl, 0x47, 0x10, 0, 0, 420), CPCAP_REG(VWLAN2, CPCAP_REG_VWLAN2C, CPCAP_REG_ASSIGN3, CPCAP_BIT_VWLAN2_SEL, vwlan2_val_tbl, 0x20c, 0xc0, 0x20c, 0, 420), CPCAP_REG(VSIM, CPCAP_REG_VSIMC, CPCAP_REG_ASSIGN3, 0xffff, vsim_val_tbl, 0x23, 0x8, 0x3, 0, 420), CPCAP_REG(VSIMCARD, CPCAP_REG_VSIMC, CPCAP_REG_ASSIGN3, 0xffff, vsimcard_val_tbl, 0x1e80, 0x8, 0x1e00, 0, 420), CPCAP_REG(VVIB, CPCAP_REG_VVIBC, CPCAP_REG_ASSIGN3, CPCAP_BIT_VVIB_SEL, vvib_val_tbl, 0x1, 0xc, 0x1, 0, 500), CPCAP_REG(VUSB, CPCAP_REG_VUSBC, CPCAP_REG_ASSIGN3, CPCAP_BIT_VUSB_SEL, vusb_val_tbl, 0x11c, 0x40, 0xc, 0, 0), CPCAP_REG(VAUDIO, CPCAP_REG_VAUDIOC, CPCAP_REG_ASSIGN4, CPCAP_BIT_VAUDIO_SEL, vaudio_val_tbl, 0x16, 0x1, 0x4, 0, 0), { /* sentinel */ }, }; static const struct cpcap_regulator xoom_regulators[] = { CPCAP_REG(SW1, CPCAP_REG_S1C1, CPCAP_REG_ASSIGN2, CPCAP_BIT_SW1_SEL, unknown_val_tbl, 0, 0, 0, 0, 0), CPCAP_REG(SW2, CPCAP_REG_S2C1, CPCAP_REG_ASSIGN2, CPCAP_BIT_SW2_SEL, sw2_sw4_val_tbl, 0xf00, 0x7f, 0x800, 0, 120), CPCAP_REG(SW3, CPCAP_REG_S3C, CPCAP_REG_ASSIGN2, CPCAP_BIT_SW3_SEL, unknown_val_tbl, 0, 0, 0, 0, 0), CPCAP_REG(SW4, CPCAP_REG_S4C1, CPCAP_REG_ASSIGN2, CPCAP_BIT_SW4_SEL, sw2_sw4_val_tbl, 0xf00, 0x7f, 0x900, 0, 100), CPCAP_REG(SW5, CPCAP_REG_S5C, CPCAP_REG_ASSIGN2, CPCAP_BIT_SW5_SEL, sw5_val_tbl, 0x2a, 0, 0x22, 0, 0), CPCAP_REG(SW6, CPCAP_REG_S6C, CPCAP_REG_ASSIGN2, CPCAP_BIT_SW6_SEL, unknown_val_tbl, 0, 0, 0, 0, 0), CPCAP_REG(VCAM, CPCAP_REG_VCAMC, CPCAP_REG_ASSIGN2, CPCAP_BIT_VCAM_SEL, vcam_val_tbl, 0x87, 0x30, 0x7, 0, 420), CPCAP_REG(VCSI, CPCAP_REG_VCSIC, CPCAP_REG_ASSIGN3, CPCAP_BIT_VCSI_SEL, vcsi_val_tbl, 0x47, 0x10, 0x7, 0, 350), CPCAP_REG(VDAC, CPCAP_REG_VDACC, CPCAP_REG_ASSIGN3, CPCAP_BIT_VDAC_SEL, vdac_val_tbl, 0x87, 0x30, 0x3, 0, 420), CPCAP_REG(VDIG, CPCAP_REG_VDIGC, CPCAP_REG_ASSIGN2, CPCAP_BIT_VDIG_SEL, vdig_val_tbl, 0x87, 0x30, 0x5, 0, 420), CPCAP_REG(VFUSE, CPCAP_REG_VFUSEC, CPCAP_REG_ASSIGN3, CPCAP_BIT_VFUSE_SEL, vfuse_val_tbl, 0x80, 0xf, 0x80, 0, 420), CPCAP_REG(VHVIO, CPCAP_REG_VHVIOC, CPCAP_REG_ASSIGN3, CPCAP_BIT_VHVIO_SEL, vhvio_val_tbl, 0x17, 0, 0x2, 0, 0), CPCAP_REG(VSDIO, CPCAP_REG_VSDIOC, CPCAP_REG_ASSIGN2, CPCAP_BIT_VSDIO_SEL, vsdio_val_tbl, 0x87, 0x38, 0x2, 0, 420), CPCAP_REG(VPLL, CPCAP_REG_VPLLC, CPCAP_REG_ASSIGN3, CPCAP_BIT_VPLL_SEL, vpll_val_tbl, 0x43, 0x18, 0x1, 0, 420), CPCAP_REG(VRF1, CPCAP_REG_VRF1C, CPCAP_REG_ASSIGN3, CPCAP_BIT_VRF1_SEL, vrf1_val_tbl, 0xac, 0x2, 0xc, 0, 10), CPCAP_REG(VRF2, CPCAP_REG_VRF2C, CPCAP_REG_ASSIGN3, CPCAP_BIT_VRF2_SEL, vrf2_val_tbl, 0x23, 0x8, 0x3, 0, 10), CPCAP_REG(VRFREF, CPCAP_REG_VRFREFC, CPCAP_REG_ASSIGN3, CPCAP_BIT_VRFREF_SEL, vrfref_val_tbl, 0x23, 0x8, 0x3, 0, 420), CPCAP_REG(VWLAN1, CPCAP_REG_VWLAN1C, CPCAP_REG_ASSIGN3, CPCAP_BIT_VWLAN1_SEL, vwlan1_val_tbl, 0x47, 0x10, 0x5, 0, 420), CPCAP_REG(VWLAN2, CPCAP_REG_VWLAN2C, CPCAP_REG_ASSIGN3, CPCAP_BIT_VWLAN2_SEL, vwlan2_val_tbl, 0x20c, 0xc0, 0x8, 0, 420), CPCAP_REG(VSIM, CPCAP_REG_VSIMC, CPCAP_REG_ASSIGN3, 0xffff, vsim_val_tbl, 0x23, 0x8, 0x3, 0, 420), CPCAP_REG(VSIMCARD, CPCAP_REG_VSIMC, CPCAP_REG_ASSIGN3, 0xffff, vsimcard_val_tbl, 0x1e80, 0x8, 0x1e00, 0, 420), CPCAP_REG(VVIB, CPCAP_REG_VVIBC, CPCAP_REG_ASSIGN3, CPCAP_BIT_VVIB_SEL, vvib_val_tbl, 0x1, 0xc, 0, 0x1, 500), CPCAP_REG(VUSB, CPCAP_REG_VUSBC, CPCAP_REG_ASSIGN3, CPCAP_BIT_VUSB_SEL, vusb_val_tbl, 0x11c, 0x40, 0xc, 0, 0), CPCAP_REG(VAUDIO, CPCAP_REG_VAUDIOC, CPCAP_REG_ASSIGN4, CPCAP_BIT_VAUDIO_SEL, vaudio_val_tbl, 0x16, 0x1, 0x4, 0, 0), { /* sentinel */ }, }; static const struct of_device_id cpcap_regulator_id_table[] = { { .compatible = "motorola,cpcap-regulator", }, { .compatible = "motorola,mapphone-cpcap-regulator", .data = omap4_regulators, }, { .compatible = "motorola,xoom-cpcap-regulator", .data = xoom_regulators, }, {}, }; MODULE_DEVICE_TABLE(of, cpcap_regulator_id_table); static int cpcap_regulator_probe(struct platform_device *pdev) { struct cpcap_ddata *ddata; const struct cpcap_regulator *match_data; struct regulator_config config; int i; match_data = of_device_get_match_data(&pdev->dev); if (!match_data) { dev_err(&pdev->dev, "no configuration data found\n"); return -ENODEV; } ddata = devm_kzalloc(&pdev->dev, sizeof(*ddata), GFP_KERNEL); if (!ddata) return -ENOMEM; ddata->reg = dev_get_regmap(pdev->dev.parent, NULL); if (!ddata->reg) return -ENODEV; ddata->dev = &pdev->dev; ddata->soc = match_data; platform_set_drvdata(pdev, ddata); memset(&config, 0, sizeof(config)); config.dev = &pdev->dev; config.regmap = ddata->reg; for (i = 0; i < CPCAP_NR_REGULATORS; i++) { const struct cpcap_regulator *regulator = &ddata->soc[i]; struct regulator_dev *rdev; if (!regulator->rdesc.name) break; if (regulator->rdesc.volt_table == unknown_val_tbl) continue; config.driver_data = (void *)regulator; rdev = devm_regulator_register(&pdev->dev, ®ulator->rdesc, &config); if (IS_ERR(rdev)) { dev_err(&pdev->dev, "failed to register regulator %s\n", regulator->rdesc.name); return PTR_ERR(rdev); } } return 0; } static struct platform_driver cpcap_regulator_driver = { .probe = cpcap_regulator_probe, .driver = { .name = "cpcap-regulator", .of_match_table = of_match_ptr(cpcap_regulator_id_table), }, }; module_platform_driver(cpcap_regulator_driver); MODULE_ALIAS("platform:cpcap-regulator"); MODULE_AUTHOR("Tony Lindgren <tony@atomide.com>"); MODULE_DESCRIPTION("CPCAP regulator driver"); MODULE_LICENSE("GPL v2");
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