aa1eefc44a
These are various debugging related patches that I have used over the time when attempting to get new features working for the mainline kernel. Given that the downstream kernel is just intended for debugging in this case, it seems convenient to add them to pmaports so I don't need to go search for them in case I need them again in the future. [ci:skip-build] Already built on CI
92 lines
2.7 KiB
Diff
92 lines
2.7 KiB
Diff
Dump all known registers of the SMB1360 battery/charging chip.
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The same output can be generated with the mainline driver which allows verifying
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if all the registers are set correctly.
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diff --git a/drivers/power/Makefile b/drivers/power/Makefile
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index b8ae7ae0ef7..b88d1905a3c 100644
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--- a/drivers/power/Makefile
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+++ b/drivers/power/Makefile
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@@ -1,6 +1,7 @@
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ccflags-$(CONFIG_POWER_SUPPLY_DEBUG) := -DDEBUG
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power_supply-y := power_supply_core.o
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+power_supply-y += smb1360-dump.o
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power_supply-$(CONFIG_SYSFS) += power_supply_sysfs.o
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power_supply-$(CONFIG_LEDS_TRIGGERS) += power_supply_leds.o
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diff --git a/drivers/power/smb1360-charger-fg.c b/drivers/power/smb1360-charger-fg.c
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index 7931b6df9be..249b9825550 100644
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--- a/drivers/power/smb1360-charger-fg.c
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+++ b/drivers/power/smb1360-charger-fg.c
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@@ -4347,12 +4347,50 @@ static int smb1360_hw_init(struct smb1360_chip *chip)
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return rc;
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}
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+extern void smb1360_dump(struct i2c_client *client);
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+extern void smb1360_dump_fg_scratch(struct i2c_client *fg_client);
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+extern void smb1360_dump_fg(struct i2c_client *client);
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+
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+static void smb1360_dump_locked(struct smb1360_chip *chip)
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+{
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+ mutex_lock(&chip->read_write_lock);
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+ smb1360_dump(chip->client);
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+ mutex_unlock(&chip->read_write_lock);
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+}
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+
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+static void smb1360_dump_fg_access(struct smb1360_chip *chip)
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+{
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+ int ret;
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+
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+ ret = smb1360_enable_fg_access(chip);
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+ if (ret)
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+ return;
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+
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+ mutex_lock(&chip->read_write_lock);
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+ smb1360_dump_fg_scratch(chip->client);
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+
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+ /* Do cool hacks to access FG I2C address instead */
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+ chip->fg_access_type = FG_ACCESS_CFG;
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+ smb1360_select_fg_i2c_address(chip);
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+
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+ chip->client->addr = chip->fg_i2c_addr;
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+ smb1360_dump_fg(chip->client);
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+ chip->client->addr = chip->default_i2c_addr;
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+ mutex_unlock(&chip->read_write_lock);
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+
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+ smb1360_disable_fg_access(chip);
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+ smb1360_check_cycle_stretch(chip);
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+}
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+
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static int smb1360_delayed_hw_init(struct smb1360_chip *chip)
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{
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int rc;
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pr_debug("delayed hw init start!\n");
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+ /* Dump initial FG registers */
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+ smb1360_dump_fg_access(chip);
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+
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if (chip->otp_hard_jeita_config) {
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rc = smb1360_hard_jeita_otp_init(chip);
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if (rc) {
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@@ -4386,6 +4424,10 @@ static int smb1360_delayed_hw_init(struct smb1360_chip *chip)
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}
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pr_debug("delayed hw init complete!\n");
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+
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+ /* Dump final registers */
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+ smb1360_dump_locked(chip);
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+ smb1360_dump_fg_access(chip);
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return rc;
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}
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@@ -4945,6 +4987,9 @@ static int smb1360_probe(struct i2c_client *client,
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INIT_WORK(&chip->jeita_hysteresis_work,
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smb1360_jeita_hysteresis_work);
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+ /* Dump initial registers */
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+ smb1360_dump_locked(chip);
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+
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pr_debug("default_i2c_addr=%x\n", chip->default_i2c_addr);
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smb1360_otp_backup_pool_init(chip);
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rc = smb1360_hw_init(chip);
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