max1720x_battery: add nv ram reg dump path for debugging
Bug: 205259954
Signed-off-by: Jenny Ho <[email protected]>
Change-Id: I5b59473fc423e892ebc26327d1a938311fb8c492
diff --git a/max1720x_battery.c b/max1720x_battery.c
index 8a5225a..6cb2b5a 100644
--- a/max1720x_battery.c
+++ b/max1720x_battery.c
@@ -3753,6 +3753,43 @@
BATTERY_DEBUG_ATTRIBUTE(debug_reg_all_fops, max1720x_show_reg_all, NULL);
+static ssize_t max1720x_show_nvreg_all(struct file *filp, char __user *buf,
+ size_t count, loff_t *ppos)
+{
+ struct max1720x_chip *chip = (struct max1720x_chip *)filp->private_data;
+ const struct max17x0x_regmap *map = &chip->regmap_nvram;
+ u32 reg_address;
+ unsigned int data;
+ char *tmp;
+ int ret = 0, len = 0;
+
+ if (!map->regmap) {
+ pr_err("Failed to read, no regmap\n");
+ return -EIO;
+ }
+
+ tmp = kmalloc(PAGE_SIZE, GFP_KERNEL);
+ if (!tmp)
+ return -ENOMEM;
+
+ for (reg_address = 0; reg_address <= 0xFF; reg_address++) {
+ ret = regmap_read(map->regmap, reg_address, &data);
+ if (ret < 0)
+ continue;
+
+ len += scnprintf(tmp + len, PAGE_SIZE - len, "%02x: %04x\n", reg_address, data);
+ }
+
+ if (len > 0)
+ len = simple_read_from_buffer(buf, count, ppos, tmp, strlen(tmp));
+
+ kfree(tmp);
+
+ return len;
+}
+
+BATTERY_DEBUG_ATTRIBUTE(debug_nvreg_all_fops, max1720x_show_nvreg_all, NULL);
+
static ssize_t max1720x_force_psy_update(struct file *filp,
const char __user *user_buf,
size_t count, loff_t *ppos)
@@ -3892,9 +3929,14 @@
/* dump all registers */
debugfs_create_file("registers", 0444, de, chip, &debug_reg_all_fops);
+ if (chip->regmap_nvram.regmap)
+ debugfs_create_file("nv_registers", 0444, de, chip, &debug_nvreg_all_fops);
+
/* reset fg eeprom data for debugging */
- debugfs_create_file("cnhs_reset", 0400, de, chip, &debug_reset_cnhs_fops);
- debugfs_create_file("gmsr_reset", 0400, de, chip, &debug_reset_gmsr_fops);
+ if (chip->gauge_type == MAX_M5_GAUGE_TYPE) {
+ debugfs_create_file("cnhs_reset", 0400, de, chip, &debug_reset_cnhs_fops);
+ debugfs_create_file("gmsr_reset", 0400, de, chip, &debug_reset_gmsr_fops);
+ }
/* capacity fade */
debugfs_create_u32("bhi_fcn_count", 0644, de, &chip->bhi_fcn_count);
