^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0-only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * Copyright (c) 2014, The Linux Foundation. All rights reserved.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) #include <linux/kernel.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) #include <linux/spmi.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) #include <linux/regmap.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/of_platform.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #define PMIC_REV2 0x101
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #define PMIC_REV3 0x102
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #define PMIC_REV4 0x103
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #define PMIC_TYPE 0x104
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #define PMIC_SUBTYPE 0x105
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #define PMIC_TYPE_VALUE 0x51
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #define COMMON_SUBTYPE 0x00
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #define PM8941_SUBTYPE 0x01
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) #define PM8841_SUBTYPE 0x02
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) #define PM8019_SUBTYPE 0x03
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) #define PM8226_SUBTYPE 0x04
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) #define PM8110_SUBTYPE 0x05
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) #define PMA8084_SUBTYPE 0x06
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) #define PMI8962_SUBTYPE 0x07
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) #define PMD9635_SUBTYPE 0x08
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) #define PM8994_SUBTYPE 0x09
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) #define PMI8994_SUBTYPE 0x0a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) #define PM8916_SUBTYPE 0x0b
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) #define PM8004_SUBTYPE 0x0c
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) #define PM8909_SUBTYPE 0x0d
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) #define PM8950_SUBTYPE 0x10
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) #define PMI8950_SUBTYPE 0x11
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) #define PM8998_SUBTYPE 0x14
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) #define PMI8998_SUBTYPE 0x15
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) #define PM8005_SUBTYPE 0x18
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) static const struct of_device_id pmic_spmi_id_table[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) { .compatible = "qcom,spmi-pmic", .data = (void *)COMMON_SUBTYPE },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) { .compatible = "qcom,pm8941", .data = (void *)PM8941_SUBTYPE },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) { .compatible = "qcom,pm8841", .data = (void *)PM8841_SUBTYPE },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) { .compatible = "qcom,pm8019", .data = (void *)PM8019_SUBTYPE },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) { .compatible = "qcom,pm8226", .data = (void *)PM8226_SUBTYPE },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) { .compatible = "qcom,pm8110", .data = (void *)PM8110_SUBTYPE },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) { .compatible = "qcom,pma8084", .data = (void *)PMA8084_SUBTYPE },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) { .compatible = "qcom,pmi8962", .data = (void *)PMI8962_SUBTYPE },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) { .compatible = "qcom,pmd9635", .data = (void *)PMD9635_SUBTYPE },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) { .compatible = "qcom,pm8994", .data = (void *)PM8994_SUBTYPE },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) { .compatible = "qcom,pmi8994", .data = (void *)PMI8994_SUBTYPE },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) { .compatible = "qcom,pm8916", .data = (void *)PM8916_SUBTYPE },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) { .compatible = "qcom,pm8004", .data = (void *)PM8004_SUBTYPE },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) { .compatible = "qcom,pm8909", .data = (void *)PM8909_SUBTYPE },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) { .compatible = "qcom,pm8950", .data = (void *)PM8950_SUBTYPE },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) { .compatible = "qcom,pmi8950", .data = (void *)PMI8950_SUBTYPE },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) { .compatible = "qcom,pm8998", .data = (void *)PM8998_SUBTYPE },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) { .compatible = "qcom,pmi8998", .data = (void *)PMI8998_SUBTYPE },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) { .compatible = "qcom,pm8005", .data = (void *)PM8005_SUBTYPE },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) { }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) static void pmic_spmi_show_revid(struct regmap *map, struct device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) unsigned int rev2, minor, major, type, subtype;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) const char *name = "unknown";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) int ret, i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) ret = regmap_read(map, PMIC_TYPE, &type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) if (type != PMIC_TYPE_VALUE)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) ret = regmap_read(map, PMIC_SUBTYPE, &subtype);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) for (i = 0; i < ARRAY_SIZE(pmic_spmi_id_table); i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) if (subtype == (unsigned long)pmic_spmi_id_table[i].data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) if (i != ARRAY_SIZE(pmic_spmi_id_table))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) name = pmic_spmi_id_table[i].compatible;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) ret = regmap_read(map, PMIC_REV2, &rev2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) ret = regmap_read(map, PMIC_REV3, &minor);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) ret = regmap_read(map, PMIC_REV4, &major);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) * In early versions of PM8941 and PM8226, the major revision number
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) * started incrementing from 0 (eg 0 = v1.0, 1 = v2.0).
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) * Increment the major revision number here if the chip is an early
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) * version of PM8941 or PM8226.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) if ((subtype == PM8941_SUBTYPE || subtype == PM8226_SUBTYPE) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) major < 0x02)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) major++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) if (subtype == PM8110_SUBTYPE)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) minor = rev2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) dev_dbg(dev, "%x: %s v%d.%d\n", subtype, name, major, minor);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) static const struct regmap_config spmi_regmap_config = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) .reg_bits = 16,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) .val_bits = 8,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) .max_register = 0xffff,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) .fast_io = true,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) static int pmic_spmi_probe(struct spmi_device *sdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) struct regmap *regmap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) regmap = devm_regmap_init_spmi_ext(sdev, &spmi_regmap_config);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) if (IS_ERR(regmap))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) return PTR_ERR(regmap);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) /* Only the first slave id for a PMIC contains this information */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) if (sdev->usid % 2 == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) pmic_spmi_show_revid(regmap, &sdev->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) return devm_of_platform_populate(&sdev->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) MODULE_DEVICE_TABLE(of, pmic_spmi_id_table);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) static struct spmi_driver pmic_spmi_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) .probe = pmic_spmi_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) .driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) .name = "pmic-spmi",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) .of_match_table = pmic_spmi_id_table,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) module_spmi_driver(pmic_spmi_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) MODULE_DESCRIPTION("Qualcomm SPMI PMIC driver");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) MODULE_ALIAS("spmi:spmi-pmic");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) MODULE_LICENSE("GPL v2");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) MODULE_AUTHOR("Josh Cartwright <joshc@codeaurora.org>");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) MODULE_AUTHOR("Stanimir Varbanov <svarbanov@mm-sol.com>");
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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