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Diffstat (limited to 'drivers/soc/qcom/socinfo.c')
-rw-r--r--drivers/soc/qcom/socinfo.c694
1 files changed, 694 insertions, 0 deletions
diff --git a/drivers/soc/qcom/socinfo.c b/drivers/soc/qcom/socinfo.c
new file mode 100644
index 000000000..aa37e1bad
--- /dev/null
+++ b/drivers/soc/qcom/socinfo.c
@@ -0,0 +1,694 @@
+// 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] = "PMK8001/PM8921",
+ [19] = "PMI8996/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",
+ [38] = "PM8150C",
+ [41] = "SMB2351",
+ [45] = "PM6125",
+ [47] = "PMK8350",
+ [48] = "PM8350",
+ [49] = "PM8350C",
+ [50] = "PM8350B",
+ [51] = "PMR735A",
+ [52] = "PMR735B",
+ [58] = "PM8450",
+ [65] = "PM8010",
+};
+#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-AC" },
+ { 198, "MSM8126" },
+ { 199, "APQ8026" },
+ { 200, "MSM8926" },
+ { 205, "MSM8326" },
+ { 206, "MSM8916" },
+ { 207, "MSM8994" },
+ { 208, "APQ8074PRO-AA" },
+ { 209, "APQ8074PRO-AB" },
+ { 210, "APQ8074PRO-AC" },
+ { 211, "MSM8274PRO-AA" },
+ { 212, "MSM8274PRO-AB" },
+ { 213, "MSM8274PRO-AC" },
+ { 214, "MSM8674PRO-AA" },
+ { 215, "MSM8674PRO-AB" },
+ { 216, "MSM8674PRO-AC" },
+ { 217, "MSM8974PRO-AA" },
+ { 218, "MSM8974PRO-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" },
+ { 323, "IPQ8074" },
+ { 324, "SDA660" },
+ { 325, "SDM658" },
+ { 326, "SDA658" },
+ { 327, "SDA630" },
+ { 338, "SDM450" },
+ { 341, "SDA845" },
+ { 342, "IPQ8072" },
+ { 343, "IPQ8076" },
+ { 344, "IPQ8078" },
+ { 345, "SDM636" },
+ { 346, "SDA636" },
+ { 349, "SDM632" },
+ { 350, "SDA632" },
+ { 351, "SDA450" },
+ { 356, "SM8250" },
+ { 375, "IPQ8070" },
+ { 376, "IPQ8071" },
+ { 389, "IPQ8072A" },
+ { 390, "IPQ8074A" },
+ { 391, "IPQ8076A" },
+ { 392, "IPQ8078A" },
+ { 394, "SM6125" },
+ { 395, "IPQ8070A" },
+ { 396, "IPQ8071A" },
+ { 402, "IPQ6018" },
+ { 403, "IPQ6028" },
+ { 421, "IPQ6000" },
+ { 422, "IPQ6010" },
+ { 425, "SC7180" },
+ { 434, "SM6350" },
+ { 439, "SM8350" },
+ { 449, "SC8280XP" },
+ { 453, "IPQ6005" },
+ { 455, "QRB5165" },
+ { 457, "SM8450" },
+ { 459, "SM7225" },
+ { 460, "SA8295P" },
+ { 461, "SA8540P" },
+ { 480, "SM8450" },
+ { 482, "SM8450" },
+ { 487, "SC7280" },
+ { 495, "SC7180P" },
+ { 507, "SM6375" },
+};
+
+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);
+
+ 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");
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-27 00:46:53 +0000