| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Caleb Connolly | 514 | 34.04% | 2 | 11.11% |
| Ivan T. Ivanov | 368 | 24.37% | 2 | 11.11% |
| Johan Hovold | 230 | 15.23% | 4 | 22.22% |
| Julia Cartwright | 198 | 13.11% | 1 | 5.56% |
| Björn Andersson | 120 | 7.95% | 2 | 11.11% |
| Angelo G. Del Regno | 42 | 2.78% | 2 | 11.11% |
| Stephen Boyd | 30 | 1.99% | 1 | 5.56% |
| Rob Herring | 4 | 0.26% | 1 | 5.56% |
| Thomas Gleixner | 2 | 0.13% | 1 | 5.56% |
| Robert Marko | 1 | 0.07% | 1 | 5.56% |
| Benjamin Gaignard | 1 | 0.07% | 1 | 5.56% |
| Total | 1510 | 18 |
// SPDX-License-Identifier: GPL-2.0-only /* * Copyright (c) 2014, The Linux Foundation. All rights reserved. */ #include <linux/device.h> #include <linux/errno.h> #include <linux/gfp.h> #include <linux/kernel.h> #include <linux/module.h> #include <linux/of.h> #include <linux/of_device.h> #include <linux/of_platform.h> #include <linux/spmi.h> #include <linux/types.h> #include <linux/regmap.h> #include <soc/qcom/qcom-spmi-pmic.h> #define PMIC_REV2 0x101 #define PMIC_REV3 0x102 #define PMIC_REV4 0x103 #define PMIC_TYPE 0x104 #define PMIC_SUBTYPE 0x105 #define PMIC_FAB_ID 0x1f2 #define PMIC_TYPE_VALUE 0x51 #define PMIC_REV4_V2 0x02 struct qcom_spmi_dev { int num_usids; struct qcom_spmi_pmic pmic; }; static DEFINE_MUTEX(pmic_spmi_revid_lock); #define N_USIDS(n) ((void *)n) static const struct of_device_id pmic_spmi_id_table[] = { { .compatible = "qcom,pm660", .data = N_USIDS(2) }, { .compatible = "qcom,pm660l", .data = N_USIDS(2) }, { .compatible = "qcom,pm8004", .data = N_USIDS(2) }, { .compatible = "qcom,pm8005", .data = N_USIDS(2) }, { .compatible = "qcom,pm8019", .data = N_USIDS(2) }, { .compatible = "qcom,pm8028", .data = N_USIDS(2) }, { .compatible = "qcom,pm8110", .data = N_USIDS(2) }, { .compatible = "qcom,pm8150", .data = N_USIDS(2) }, { .compatible = "qcom,pm8150b", .data = N_USIDS(2) }, { .compatible = "qcom,pm8150c", .data = N_USIDS(2) }, { .compatible = "qcom,pm8150l", .data = N_USIDS(2) }, { .compatible = "qcom,pm8226", .data = N_USIDS(2) }, { .compatible = "qcom,pm8841", .data = N_USIDS(2) }, { .compatible = "qcom,pm8901", .data = N_USIDS(2) }, { .compatible = "qcom,pm8909", .data = N_USIDS(2) }, { .compatible = "qcom,pm8916", .data = N_USIDS(2) }, { .compatible = "qcom,pm8941", .data = N_USIDS(2) }, { .compatible = "qcom,pm8950", .data = N_USIDS(2) }, { .compatible = "qcom,pm8994", .data = N_USIDS(2) }, { .compatible = "qcom,pm8998", .data = N_USIDS(2) }, { .compatible = "qcom,pma8084", .data = N_USIDS(2) }, { .compatible = "qcom,pmd9635", .data = N_USIDS(2) }, { .compatible = "qcom,pmi8950", .data = N_USIDS(2) }, { .compatible = "qcom,pmi8962", .data = N_USIDS(2) }, { .compatible = "qcom,pmi8994", .data = N_USIDS(2) }, { .compatible = "qcom,pmi8998", .data = N_USIDS(2) }, { .compatible = "qcom,pmk8002", .data = N_USIDS(2) }, { .compatible = "qcom,pmp8074", .data = N_USIDS(2) }, { .compatible = "qcom,smb2351", .data = N_USIDS(2) }, { .compatible = "qcom,spmi-pmic", .data = N_USIDS(1) }, { } }; /* * A PMIC can be represented by multiple SPMI devices, but * only the base PMIC device will contain a reference to * the revision information. * * This function takes a pointer to a pmic device and * returns a pointer to the base PMIC device. * * This only supports PMICs with 1 or 2 USIDs. */ static struct spmi_device *qcom_pmic_get_base_usid(struct spmi_device *sdev, struct qcom_spmi_dev *ctx) { struct device_node *spmi_bus; struct device_node *child; int function_parent_usid, ret; u32 pmic_addr; /* * Quick return if the function device is already in the base * USID. This will always be hit for PMICs with only 1 USID. */ if (sdev->usid % ctx->num_usids == 0) { get_device(&sdev->dev); return sdev; } function_parent_usid = sdev->usid; /* * Walk through the list of PMICs until we find the sibling USID. * The goal is to find the first USID which is less than the * number of USIDs in the PMIC array, e.g. for a PMIC with 2 USIDs * where the function device is under USID 3, we want to find the * device for USID 2. */ spmi_bus = of_get_parent(sdev->dev.of_node); sdev = ERR_PTR(-ENODATA); for_each_child_of_node(spmi_bus, child) { ret = of_property_read_u32_index(child, "reg", 0, &pmic_addr); if (ret) { of_node_put(child); sdev = ERR_PTR(ret); break; } if (pmic_addr == function_parent_usid - (ctx->num_usids - 1)) { sdev = spmi_find_device_by_of_node(child); if (!sdev) { /* * If the base USID for this PMIC hasn't been * registered yet then we need to defer. */ sdev = ERR_PTR(-EPROBE_DEFER); } of_node_put(child); break; } } of_node_put(spmi_bus); return sdev; } static int pmic_spmi_get_base_revid(struct spmi_device *sdev, struct qcom_spmi_dev *ctx) { struct qcom_spmi_dev *base_ctx; struct spmi_device *base; int ret = 0; base = qcom_pmic_get_base_usid(sdev, ctx); if (IS_ERR(base)) return PTR_ERR(base); /* * Copy revid info from base device if it has probed and is still * bound to its driver. */ mutex_lock(&pmic_spmi_revid_lock); base_ctx = spmi_device_get_drvdata(base); if (!base_ctx) { ret = -EPROBE_DEFER; goto out_unlock; } memcpy(&ctx->pmic, &base_ctx->pmic, sizeof(ctx->pmic)); out_unlock: mutex_unlock(&pmic_spmi_revid_lock); put_device(&base->dev); return ret; } static int pmic_spmi_load_revid(struct regmap *map, struct device *dev, struct qcom_spmi_pmic *pmic) { int ret; ret = regmap_read(map, PMIC_TYPE, &pmic->type); if (ret < 0) return ret; if (pmic->type != PMIC_TYPE_VALUE) return ret; ret = regmap_read(map, PMIC_SUBTYPE, &pmic->subtype); if (ret < 0) return ret; pmic->name = of_match_device(pmic_spmi_id_table, dev)->compatible; ret = regmap_read(map, PMIC_REV2, &pmic->rev2); if (ret < 0) return ret; ret = regmap_read(map, PMIC_REV3, &pmic->minor); if (ret < 0) return ret; ret = regmap_read(map, PMIC_REV4, &pmic->major); if (ret < 0) return ret; if (pmic->subtype == PMI8998_SUBTYPE || pmic->subtype == PM660_SUBTYPE) { ret = regmap_read(map, PMIC_FAB_ID, &pmic->fab_id); if (ret < 0) return ret; } /* * In early versions of PM8941 and PM8226, the major revision number * started incrementing from 0 (eg 0 = v1.0, 1 = v2.0). * Increment the major revision number here if the chip is an early * version of PM8941 or PM8226. */ if ((pmic->subtype == PM8941_SUBTYPE || pmic->subtype == PM8226_SUBTYPE) && pmic->major < PMIC_REV4_V2) pmic->major++; if (pmic->subtype == PM8110_SUBTYPE) pmic->minor = pmic->rev2; dev_dbg(dev, "%x: %s v%d.%d\n", pmic->subtype, pmic->name, pmic->major, pmic->minor); return 0; } /** * qcom_pmic_get() - Get a pointer to the base PMIC device * * This function takes a struct device for a driver which is a child of a PMIC. * And locates the PMIC revision information for it. * * @dev: the pmic function device * @return: the struct qcom_spmi_pmic* pointer associated with the function device */ const struct qcom_spmi_pmic *qcom_pmic_get(struct device *dev) { struct spmi_device *sdev; struct qcom_spmi_dev *spmi; /* * Make sure the device is actually a child of a PMIC */ if (!of_match_device(pmic_spmi_id_table, dev->parent)) return ERR_PTR(-EINVAL); sdev = to_spmi_device(dev->parent); spmi = dev_get_drvdata(&sdev->dev); return &spmi->pmic; } EXPORT_SYMBOL_GPL(qcom_pmic_get); static const struct regmap_config spmi_regmap_config = { .reg_bits = 16, .val_bits = 8, .max_register = 0xffff, .fast_io = true, }; static int pmic_spmi_probe(struct spmi_device *sdev) { struct regmap *regmap; struct qcom_spmi_dev *ctx; int ret; regmap = devm_regmap_init_spmi_ext(sdev, &spmi_regmap_config); if (IS_ERR(regmap)) return PTR_ERR(regmap); ctx = devm_kzalloc(&sdev->dev, sizeof(*ctx), GFP_KERNEL); if (!ctx) return -ENOMEM; ctx->num_usids = (uintptr_t)device_get_match_data(&sdev->dev); /* Only the first slave id for a PMIC contains this information */ if (sdev->usid % ctx->num_usids == 0) { ret = pmic_spmi_load_revid(regmap, &sdev->dev, &ctx->pmic); if (ret < 0) return ret; } else { ret = pmic_spmi_get_base_revid(sdev, ctx); if (ret) return ret; } mutex_lock(&pmic_spmi_revid_lock); spmi_device_set_drvdata(sdev, ctx); mutex_unlock(&pmic_spmi_revid_lock); return devm_of_platform_populate(&sdev->dev); } static void pmic_spmi_remove(struct spmi_device *sdev) { mutex_lock(&pmic_spmi_revid_lock); spmi_device_set_drvdata(sdev, NULL); mutex_unlock(&pmic_spmi_revid_lock); } MODULE_DEVICE_TABLE(of, pmic_spmi_id_table); static struct spmi_driver pmic_spmi_driver = { .probe = pmic_spmi_probe, .remove = pmic_spmi_remove, .driver = { .name = "pmic-spmi", .of_match_table = pmic_spmi_id_table, }, }; module_spmi_driver(pmic_spmi_driver); MODULE_DESCRIPTION("Qualcomm SPMI PMIC driver"); MODULE_ALIAS("spmi:spmi-pmic"); MODULE_LICENSE("GPL v2"); MODULE_AUTHOR("Josh Cartwright <joshc@codeaurora.org>"); MODULE_AUTHOR("Stanimir Varbanov <svarbanov@mm-sol.com>");
Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.
Created with Cregit http://github.com/cregit/cregit
Version 2.0-RC1