| // SPDX-License-Identifier: GPL-2.0 |
| /* |
| * Copyright (c) 2009-2017, The Linux Foundation. All rights reserved. |
| * Copyright (c) 2017-2019, Linaro Ltd. |
| */ |
| |
| #include <linux/debugfs.h> |
| #include <linux/err.h> |
| #include <linux/module.h> |
| #include <linux/platform_device.h> |
| #include <linux/random.h> |
| #include <linux/slab.h> |
| #include <linux/soc/qcom/smem.h> |
| #include <linux/string.h> |
| #include <linux/sys_soc.h> |
| #include <linux/types.h> |
| |
| #include <asm/unaligned.h> |
| |
| /* |
| * SoC version type with major number in the upper 16 bits and minor |
| * number in the lower 16 bits. |
| */ |
| #define SOCINFO_MAJOR(ver) (((ver) >> 16) & 0xffff) |
| #define SOCINFO_MINOR(ver) ((ver) & 0xffff) |
| #define SOCINFO_VERSION(maj, min) ((((maj) & 0xffff) << 16)|((min) & 0xffff)) |
| |
| #define SMEM_SOCINFO_BUILD_ID_LENGTH 32 |
| #define SMEM_SOCINFO_CHIP_ID_LENGTH 32 |
| |
| /* |
| * SMEM item id, used to acquire handles to respective |
| * SMEM region. |
| */ |
| #define SMEM_HW_SW_BUILD_ID 137 |
| |
| #ifdef CONFIG_DEBUG_FS |
| #define SMEM_IMAGE_VERSION_BLOCKS_COUNT 32 |
| #define SMEM_IMAGE_VERSION_SIZE 4096 |
| #define SMEM_IMAGE_VERSION_NAME_SIZE 75 |
| #define SMEM_IMAGE_VERSION_VARIANT_SIZE 20 |
| #define SMEM_IMAGE_VERSION_OEM_SIZE 32 |
| |
| /* |
| * SMEM Image table indices |
| */ |
| #define SMEM_IMAGE_TABLE_BOOT_INDEX 0 |
| #define SMEM_IMAGE_TABLE_TZ_INDEX 1 |
| #define SMEM_IMAGE_TABLE_RPM_INDEX 3 |
| #define SMEM_IMAGE_TABLE_APPS_INDEX 10 |
| #define SMEM_IMAGE_TABLE_MPSS_INDEX 11 |
| #define SMEM_IMAGE_TABLE_ADSP_INDEX 12 |
| #define SMEM_IMAGE_TABLE_CNSS_INDEX 13 |
| #define SMEM_IMAGE_TABLE_VIDEO_INDEX 14 |
| #define SMEM_IMAGE_VERSION_TABLE 469 |
| |
| /* |
| * SMEM Image table names |
| */ |
| static const char *const socinfo_image_names[] = { |
| [SMEM_IMAGE_TABLE_ADSP_INDEX] = "adsp", |
| [SMEM_IMAGE_TABLE_APPS_INDEX] = "apps", |
| [SMEM_IMAGE_TABLE_BOOT_INDEX] = "boot", |
| [SMEM_IMAGE_TABLE_CNSS_INDEX] = "cnss", |
| [SMEM_IMAGE_TABLE_MPSS_INDEX] = "mpss", |
| [SMEM_IMAGE_TABLE_RPM_INDEX] = "rpm", |
| [SMEM_IMAGE_TABLE_TZ_INDEX] = "tz", |
| [SMEM_IMAGE_TABLE_VIDEO_INDEX] = "video", |
| }; |
| |
| static const char *const pmic_models[] = { |
| [0] = "Unknown PMIC model", |
| [1] = "PM8941", |
| [2] = "PM8841", |
| [3] = "PM8019", |
| [4] = "PM8226", |
| [5] = "PM8110", |
| [6] = "PMA8084", |
| [7] = "PMI8962", |
| [8] = "PMD9635", |
| [9] = "PM8994", |
| [10] = "PMI8994", |
| [11] = "PM8916", |
| [12] = "PM8004", |
| [13] = "PM8909/PM8058", |
| [14] = "PM8028", |
| [15] = "PM8901", |
| [16] = "PM8950/PM8027", |
| [17] = "PMI8950/ISL9519", |
| [18] = "PM8921", |
| [19] = "PM8018", |
| [20] = "PM8998/PM8015", |
| [21] = "PMI8998/PM8014", |
| [22] = "PM8821", |
| [23] = "PM8038", |
| [24] = "PM8005/PM8922", |
| [25] = "PM8917", |
| [26] = "PM660L", |
| [27] = "PM660", |
| [30] = "PM8150", |
| [31] = "PM8150L", |
| [32] = "PM8150B", |
| [33] = "PMK8002", |
| [36] = "PM8009", |
| }; |
| #endif /* CONFIG_DEBUG_FS */ |
| |
| /* Socinfo SMEM item structure */ |
| struct socinfo { |
| __le32 fmt; |
| __le32 id; |
| __le32 ver; |
| char build_id[SMEM_SOCINFO_BUILD_ID_LENGTH]; |
| /* Version 2 */ |
| __le32 raw_id; |
| __le32 raw_ver; |
| /* Version 3 */ |
| __le32 hw_plat; |
| /* Version 4 */ |
| __le32 plat_ver; |
| /* Version 5 */ |
| __le32 accessory_chip; |
| /* Version 6 */ |
| __le32 hw_plat_subtype; |
| /* Version 7 */ |
| __le32 pmic_model; |
| __le32 pmic_die_rev; |
| /* Version 8 */ |
| __le32 pmic_model_1; |
| __le32 pmic_die_rev_1; |
| __le32 pmic_model_2; |
| __le32 pmic_die_rev_2; |
| /* Version 9 */ |
| __le32 foundry_id; |
| /* Version 10 */ |
| __le32 serial_num; |
| /* Version 11 */ |
| __le32 num_pmics; |
| __le32 pmic_array_offset; |
| /* Version 12 */ |
| __le32 chip_family; |
| __le32 raw_device_family; |
| __le32 raw_device_num; |
| /* Version 13 */ |
| __le32 nproduct_id; |
| char chip_id[SMEM_SOCINFO_CHIP_ID_LENGTH]; |
| /* Version 14 */ |
| __le32 num_clusters; |
| __le32 ncluster_array_offset; |
| __le32 num_defective_parts; |
| __le32 ndefective_parts_array_offset; |
| /* Version 15 */ |
| __le32 nmodem_supported; |
| }; |
| |
| #ifdef CONFIG_DEBUG_FS |
| struct socinfo_params { |
| u32 raw_device_family; |
| u32 hw_plat_subtype; |
| u32 accessory_chip; |
| u32 raw_device_num; |
| u32 chip_family; |
| u32 foundry_id; |
| u32 plat_ver; |
| u32 raw_ver; |
| u32 hw_plat; |
| u32 fmt; |
| u32 nproduct_id; |
| u32 num_clusters; |
| u32 ncluster_array_offset; |
| u32 num_defective_parts; |
| u32 ndefective_parts_array_offset; |
| u32 nmodem_supported; |
| }; |
| |
| struct smem_image_version { |
| char name[SMEM_IMAGE_VERSION_NAME_SIZE]; |
| char variant[SMEM_IMAGE_VERSION_VARIANT_SIZE]; |
| char pad; |
| char oem[SMEM_IMAGE_VERSION_OEM_SIZE]; |
| }; |
| #endif /* CONFIG_DEBUG_FS */ |
| |
| struct qcom_socinfo { |
| struct soc_device *soc_dev; |
| struct soc_device_attribute attr; |
| #ifdef CONFIG_DEBUG_FS |
| struct dentry *dbg_root; |
| struct socinfo_params info; |
| #endif /* CONFIG_DEBUG_FS */ |
| }; |
| |
| struct soc_id { |
| unsigned int id; |
| const char *name; |
| }; |
| |
| static const struct soc_id soc_id[] = { |
| { 87, "MSM8960" }, |
| { 109, "APQ8064" }, |
| { 122, "MSM8660A" }, |
| { 123, "MSM8260A" }, |
| { 124, "APQ8060A" }, |
| { 126, "MSM8974" }, |
| { 130, "MPQ8064" }, |
| { 138, "MSM8960AB" }, |
| { 139, "APQ8060AB" }, |
| { 140, "MSM8260AB" }, |
| { 141, "MSM8660AB" }, |
| { 145, "MSM8626" }, |
| { 147, "MSM8610" }, |
| { 153, "APQ8064AB" }, |
| { 158, "MSM8226" }, |
| { 159, "MSM8526" }, |
| { 161, "MSM8110" }, |
| { 162, "MSM8210" }, |
| { 163, "MSM8810" }, |
| { 164, "MSM8212" }, |
| { 165, "MSM8612" }, |
| { 166, "MSM8112" }, |
| { 168, "MSM8225Q" }, |
| { 169, "MSM8625Q" }, |
| { 170, "MSM8125Q" }, |
| { 172, "APQ8064AA" }, |
| { 178, "APQ8084" }, |
| { 184, "APQ8074" }, |
| { 185, "MSM8274" }, |
| { 186, "MSM8674" }, |
| { 194, "MSM8974PRO" }, |
| { 198, "MSM8126" }, |
| { 199, "APQ8026" }, |
| { 200, "MSM8926" }, |
| { 205, "MSM8326" }, |
| { 206, "MSM8916" }, |
| { 207, "MSM8994" }, |
| { 208, "APQ8074-AA" }, |
| { 209, "APQ8074-AB" }, |
| { 210, "APQ8074PRO" }, |
| { 211, "MSM8274-AA" }, |
| { 212, "MSM8274-AB" }, |
| { 213, "MSM8274PRO" }, |
| { 214, "MSM8674-AA" }, |
| { 215, "MSM8674-AB" }, |
| { 216, "MSM8674PRO" }, |
| { 217, "MSM8974-AA" }, |
| { 218, "MSM8974-AB" }, |
| { 219, "APQ8028" }, |
| { 220, "MSM8128" }, |
| { 221, "MSM8228" }, |
| { 222, "MSM8528" }, |
| { 223, "MSM8628" }, |
| { 224, "MSM8928" }, |
| { 225, "MSM8510" }, |
| { 226, "MSM8512" }, |
| { 233, "MSM8936" }, |
| { 239, "MSM8939" }, |
| { 240, "APQ8036" }, |
| { 241, "APQ8039" }, |
| { 246, "MSM8996" }, |
| { 247, "APQ8016" }, |
| { 248, "MSM8216" }, |
| { 249, "MSM8116" }, |
| { 250, "MSM8616" }, |
| { 251, "MSM8992" }, |
| { 253, "APQ8094" }, |
| { 290, "MDM9607" }, |
| { 291, "APQ8096" }, |
| { 292, "MSM8998" }, |
| { 293, "MSM8953" }, |
| { 296, "MDM8207" }, |
| { 297, "MDM9207" }, |
| { 298, "MDM9307" }, |
| { 299, "MDM9628" }, |
| { 304, "APQ8053" }, |
| { 305, "MSM8996SG" }, |
| { 310, "MSM8996AU" }, |
| { 311, "APQ8096AU" }, |
| { 312, "APQ8096SG" }, |
| { 317, "SDM660" }, |
| { 318, "SDM630" }, |
| { 319, "APQ8098" }, |
| { 321, "SDM845" }, |
| { 322, "MDM9206" }, |
| { 324, "SDA660" }, |
| { 325, "SDM658" }, |
| { 326, "SDA658" }, |
| { 327, "SDA630" }, |
| { 338, "SDM450" }, |
| { 341, "SDA845" }, |
| { 345, "SDM636" }, |
| { 346, "SDA636" }, |
| { 349, "SDM632" }, |
| { 350, "SDA632" }, |
| { 351, "SDA450" }, |
| { 356, "SM8250" }, |
| { 394, "SM6125" }, |
| { 402, "IPQ6018" }, |
| { 403, "IPQ6028" }, |
| { 421, "IPQ6000" }, |
| { 422, "IPQ6010" }, |
| { 425, "SC7180" }, |
| { 453, "IPQ6005" }, |
| { 455, "QRB5165" }, |
| }; |
| |
| static const char *socinfo_machine(struct device *dev, unsigned int id) |
| { |
| int idx; |
| |
| for (idx = 0; idx < ARRAY_SIZE(soc_id); idx++) { |
| if (soc_id[idx].id == id) |
| return soc_id[idx].name; |
| } |
| |
| return NULL; |
| } |
| |
| #ifdef CONFIG_DEBUG_FS |
| |
| #define QCOM_OPEN(name, _func) \ |
| static int qcom_open_##name(struct inode *inode, struct file *file) \ |
| { \ |
| return single_open(file, _func, inode->i_private); \ |
| } \ |
| \ |
| static const struct file_operations qcom_ ##name## _ops = { \ |
| .open = qcom_open_##name, \ |
| .read = seq_read, \ |
| .llseek = seq_lseek, \ |
| .release = single_release, \ |
| } |
| |
| #define DEBUGFS_ADD(info, name) \ |
| debugfs_create_file(__stringify(name), 0444, \ |
| qcom_socinfo->dbg_root, \ |
| info, &qcom_ ##name## _ops) |
| |
| |
| static int qcom_show_build_id(struct seq_file *seq, void *p) |
| { |
| struct socinfo *socinfo = seq->private; |
| |
| seq_printf(seq, "%s\n", socinfo->build_id); |
| |
| return 0; |
| } |
| |
| static int qcom_show_pmic_model(struct seq_file *seq, void *p) |
| { |
| struct socinfo *socinfo = seq->private; |
| int model = SOCINFO_MINOR(le32_to_cpu(socinfo->pmic_model)); |
| |
| if (model < 0) |
| return -EINVAL; |
| |
| if (model < ARRAY_SIZE(pmic_models) && pmic_models[model]) |
| seq_printf(seq, "%s\n", pmic_models[model]); |
| else |
| seq_printf(seq, "unknown (%d)\n", model); |
| |
| return 0; |
| } |
| |
| static int qcom_show_pmic_model_array(struct seq_file *seq, void *p) |
| { |
| struct socinfo *socinfo = seq->private; |
| unsigned int num_pmics = le32_to_cpu(socinfo->num_pmics); |
| unsigned int pmic_array_offset = le32_to_cpu(socinfo->pmic_array_offset); |
| int i; |
| void *ptr = socinfo; |
| |
| ptr += pmic_array_offset; |
| |
| /* No need for bounds checking, it happened at socinfo_debugfs_init */ |
| for (i = 0; i < num_pmics; i++) { |
| unsigned int model = SOCINFO_MINOR(get_unaligned_le32(ptr + 2 * i * sizeof(u32))); |
| unsigned int die_rev = get_unaligned_le32(ptr + (2 * i + 1) * sizeof(u32)); |
| |
| if (model < ARRAY_SIZE(pmic_models) && pmic_models[model]) |
| seq_printf(seq, "%s %u.%u\n", pmic_models[model], |
| SOCINFO_MAJOR(die_rev), |
| SOCINFO_MINOR(die_rev)); |
| else |
| seq_printf(seq, "unknown (%d)\n", model); |
| } |
| |
| return 0; |
| } |
| |
| static int qcom_show_pmic_die_revision(struct seq_file *seq, void *p) |
| { |
| struct socinfo *socinfo = seq->private; |
| |
| seq_printf(seq, "%u.%u\n", |
| SOCINFO_MAJOR(le32_to_cpu(socinfo->pmic_die_rev)), |
| SOCINFO_MINOR(le32_to_cpu(socinfo->pmic_die_rev))); |
| |
| return 0; |
| } |
| |
| static int qcom_show_chip_id(struct seq_file *seq, void *p) |
| { |
| struct socinfo *socinfo = seq->private; |
| |
| seq_printf(seq, "%s\n", socinfo->chip_id); |
| |
| return 0; |
| } |
| |
| QCOM_OPEN(build_id, qcom_show_build_id); |
| QCOM_OPEN(pmic_model, qcom_show_pmic_model); |
| QCOM_OPEN(pmic_model_array, qcom_show_pmic_model_array); |
| QCOM_OPEN(pmic_die_rev, qcom_show_pmic_die_revision); |
| QCOM_OPEN(chip_id, qcom_show_chip_id); |
| |
| #define DEFINE_IMAGE_OPS(type) \ |
| static int show_image_##type(struct seq_file *seq, void *p) \ |
| { \ |
| struct smem_image_version *image_version = seq->private; \ |
| if (image_version->type[0] != '\0') \ |
| seq_printf(seq, "%s\n", image_version->type); \ |
| return 0; \ |
| } \ |
| static int open_image_##type(struct inode *inode, struct file *file) \ |
| { \ |
| return single_open(file, show_image_##type, inode->i_private); \ |
| } \ |
| \ |
| static const struct file_operations qcom_image_##type##_ops = { \ |
| .open = open_image_##type, \ |
| .read = seq_read, \ |
| .llseek = seq_lseek, \ |
| .release = single_release, \ |
| } |
| |
| DEFINE_IMAGE_OPS(name); |
| DEFINE_IMAGE_OPS(variant); |
| DEFINE_IMAGE_OPS(oem); |
| |
| static void socinfo_debugfs_init(struct qcom_socinfo *qcom_socinfo, |
| struct socinfo *info, size_t info_size) |
| { |
| struct smem_image_version *versions; |
| struct dentry *dentry; |
| size_t size; |
| int i; |
| unsigned int num_pmics; |
| unsigned int pmic_array_offset; |
| |
| qcom_socinfo->dbg_root = debugfs_create_dir("qcom_socinfo", NULL); |
| |
| qcom_socinfo->info.fmt = __le32_to_cpu(info->fmt); |
| |
| debugfs_create_x32("info_fmt", 0444, qcom_socinfo->dbg_root, |
| &qcom_socinfo->info.fmt); |
| |
| switch (qcom_socinfo->info.fmt) { |
| case SOCINFO_VERSION(0, 15): |
| qcom_socinfo->info.nmodem_supported = __le32_to_cpu(info->nmodem_supported); |
| |
| debugfs_create_u32("nmodem_supported", 0444, qcom_socinfo->dbg_root, |
| &qcom_socinfo->info.nmodem_supported); |
| fallthrough; |
| case SOCINFO_VERSION(0, 14): |
| qcom_socinfo->info.num_clusters = __le32_to_cpu(info->num_clusters); |
| qcom_socinfo->info.ncluster_array_offset = __le32_to_cpu(info->ncluster_array_offset); |
| qcom_socinfo->info.num_defective_parts = __le32_to_cpu(info->num_defective_parts); |
| qcom_socinfo->info.ndefective_parts_array_offset = __le32_to_cpu(info->ndefective_parts_array_offset); |
| |
| debugfs_create_u32("num_clusters", 0444, qcom_socinfo->dbg_root, |
| &qcom_socinfo->info.num_clusters); |
| debugfs_create_u32("ncluster_array_offset", 0444, qcom_socinfo->dbg_root, |
| &qcom_socinfo->info.ncluster_array_offset); |
| debugfs_create_u32("num_defective_parts", 0444, qcom_socinfo->dbg_root, |
| &qcom_socinfo->info.num_defective_parts); |
| debugfs_create_u32("ndefective_parts_array_offset", 0444, qcom_socinfo->dbg_root, |
| &qcom_socinfo->info.ndefective_parts_array_offset); |
| fallthrough; |
| case SOCINFO_VERSION(0, 13): |
| qcom_socinfo->info.nproduct_id = __le32_to_cpu(info->nproduct_id); |
| |
| debugfs_create_u32("nproduct_id", 0444, qcom_socinfo->dbg_root, |
| &qcom_socinfo->info.nproduct_id); |
| DEBUGFS_ADD(info, chip_id); |
| fallthrough; |
| case SOCINFO_VERSION(0, 12): |
| qcom_socinfo->info.chip_family = |
| __le32_to_cpu(info->chip_family); |
| qcom_socinfo->info.raw_device_family = |
| __le32_to_cpu(info->raw_device_family); |
| qcom_socinfo->info.raw_device_num = |
| __le32_to_cpu(info->raw_device_num); |
| |
| debugfs_create_x32("chip_family", 0444, qcom_socinfo->dbg_root, |
| &qcom_socinfo->info.chip_family); |
| debugfs_create_x32("raw_device_family", 0444, |
| qcom_socinfo->dbg_root, |
| &qcom_socinfo->info.raw_device_family); |
| debugfs_create_x32("raw_device_number", 0444, |
| qcom_socinfo->dbg_root, |
| &qcom_socinfo->info.raw_device_num); |
| fallthrough; |
| case SOCINFO_VERSION(0, 11): |
| num_pmics = le32_to_cpu(info->num_pmics); |
| pmic_array_offset = le32_to_cpu(info->pmic_array_offset); |
| if (pmic_array_offset + 2 * num_pmics * sizeof(u32) <= info_size) |
| DEBUGFS_ADD(info, pmic_model_array); |
| fallthrough; |
| case SOCINFO_VERSION(0, 10): |
| case SOCINFO_VERSION(0, 9): |
| qcom_socinfo->info.foundry_id = __le32_to_cpu(info->foundry_id); |
| |
| debugfs_create_u32("foundry_id", 0444, qcom_socinfo->dbg_root, |
| &qcom_socinfo->info.foundry_id); |
| fallthrough; |
| case SOCINFO_VERSION(0, 8): |
| case SOCINFO_VERSION(0, 7): |
| DEBUGFS_ADD(info, pmic_model); |
| DEBUGFS_ADD(info, pmic_die_rev); |
| fallthrough; |
| case SOCINFO_VERSION(0, 6): |
| qcom_socinfo->info.hw_plat_subtype = |
| __le32_to_cpu(info->hw_plat_subtype); |
| |
| debugfs_create_u32("hardware_platform_subtype", 0444, |
| qcom_socinfo->dbg_root, |
| &qcom_socinfo->info.hw_plat_subtype); |
| fallthrough; |
| case SOCINFO_VERSION(0, 5): |
| qcom_socinfo->info.accessory_chip = |
| __le32_to_cpu(info->accessory_chip); |
| |
| debugfs_create_u32("accessory_chip", 0444, |
| qcom_socinfo->dbg_root, |
| &qcom_socinfo->info.accessory_chip); |
| fallthrough; |
| case SOCINFO_VERSION(0, 4): |
| qcom_socinfo->info.plat_ver = __le32_to_cpu(info->plat_ver); |
| |
| debugfs_create_u32("platform_version", 0444, |
| qcom_socinfo->dbg_root, |
| &qcom_socinfo->info.plat_ver); |
| fallthrough; |
| case SOCINFO_VERSION(0, 3): |
| qcom_socinfo->info.hw_plat = __le32_to_cpu(info->hw_plat); |
| |
| debugfs_create_u32("hardware_platform", 0444, |
| qcom_socinfo->dbg_root, |
| &qcom_socinfo->info.hw_plat); |
| fallthrough; |
| case SOCINFO_VERSION(0, 2): |
| qcom_socinfo->info.raw_ver = __le32_to_cpu(info->raw_ver); |
| |
| debugfs_create_u32("raw_version", 0444, qcom_socinfo->dbg_root, |
| &qcom_socinfo->info.raw_ver); |
| fallthrough; |
| case SOCINFO_VERSION(0, 1): |
| DEBUGFS_ADD(info, build_id); |
| break; |
| } |
| |
| versions = qcom_smem_get(QCOM_SMEM_HOST_ANY, SMEM_IMAGE_VERSION_TABLE, |
| &size); |
| |
| for (i = 0; i < ARRAY_SIZE(socinfo_image_names); i++) { |
| if (!socinfo_image_names[i]) |
| continue; |
| |
| dentry = debugfs_create_dir(socinfo_image_names[i], |
| qcom_socinfo->dbg_root); |
| debugfs_create_file("name", 0444, dentry, &versions[i], |
| &qcom_image_name_ops); |
| debugfs_create_file("variant", 0444, dentry, &versions[i], |
| &qcom_image_variant_ops); |
| debugfs_create_file("oem", 0444, dentry, &versions[i], |
| &qcom_image_oem_ops); |
| } |
| } |
| |
| static void socinfo_debugfs_exit(struct qcom_socinfo *qcom_socinfo) |
| { |
| debugfs_remove_recursive(qcom_socinfo->dbg_root); |
| } |
| #else |
| static void socinfo_debugfs_init(struct qcom_socinfo *qcom_socinfo, |
| struct socinfo *info, size_t info_size) |
| { |
| } |
| static void socinfo_debugfs_exit(struct qcom_socinfo *qcom_socinfo) { } |
| #endif /* CONFIG_DEBUG_FS */ |
| |
| static int qcom_socinfo_probe(struct platform_device *pdev) |
| { |
| struct qcom_socinfo *qs; |
| struct socinfo *info; |
| size_t item_size; |
| |
| info = qcom_smem_get(QCOM_SMEM_HOST_ANY, SMEM_HW_SW_BUILD_ID, |
| &item_size); |
| if (IS_ERR(info)) { |
| dev_err(&pdev->dev, "Couldn't find socinfo\n"); |
| return PTR_ERR(info); |
| } |
| |
| qs = devm_kzalloc(&pdev->dev, sizeof(*qs), GFP_KERNEL); |
| if (!qs) |
| return -ENOMEM; |
| |
| qs->attr.family = "Snapdragon"; |
| qs->attr.machine = socinfo_machine(&pdev->dev, |
| le32_to_cpu(info->id)); |
| qs->attr.soc_id = devm_kasprintf(&pdev->dev, GFP_KERNEL, "%u", |
| le32_to_cpu(info->id)); |
| qs->attr.revision = devm_kasprintf(&pdev->dev, GFP_KERNEL, "%u.%u", |
| SOCINFO_MAJOR(le32_to_cpu(info->ver)), |
| SOCINFO_MINOR(le32_to_cpu(info->ver))); |
| if (offsetof(struct socinfo, serial_num) <= item_size) |
| qs->attr.serial_number = devm_kasprintf(&pdev->dev, GFP_KERNEL, |
| "%u", |
| le32_to_cpu(info->serial_num)); |
| |
| qs->soc_dev = soc_device_register(&qs->attr); |
| if (IS_ERR(qs->soc_dev)) |
| return PTR_ERR(qs->soc_dev); |
| |
| socinfo_debugfs_init(qs, info, item_size); |
| |
| /* Feed the soc specific unique data into entropy pool */ |
| add_device_randomness(info, item_size); |
| |
| platform_set_drvdata(pdev, qs->soc_dev); |
| |
| return 0; |
| } |
| |
| static int qcom_socinfo_remove(struct platform_device *pdev) |
| { |
| struct qcom_socinfo *qs = platform_get_drvdata(pdev); |
| |
| soc_device_unregister(qs->soc_dev); |
| |
| socinfo_debugfs_exit(qs); |
| |
| return 0; |
| } |
| |
| static struct platform_driver qcom_socinfo_driver = { |
| .probe = qcom_socinfo_probe, |
| .remove = qcom_socinfo_remove, |
| .driver = { |
| .name = "qcom-socinfo", |
| }, |
| }; |
| |
| module_platform_driver(qcom_socinfo_driver); |
| |
| MODULE_DESCRIPTION("Qualcomm SoCinfo driver"); |
| MODULE_LICENSE("GPL v2"); |
| MODULE_ALIAS("platform:qcom-socinfo"); |