[PATCH] regulator: fan53555: add back tcs4526

From: Rudi Heitbaum
Date: Wed May 26 2021 - 12:23:59 EST



For rk3399pro boards the tcs4526 regulator supports the vdd_gpu
regulator. The tcs4526 regulator has a chip id of <0>.
Add the compatibile tcs,tcs4526

without this patch, the dmesg output is:
fan53555-regulator 0-0010: Chip ID 0 not supported!
fan53555-regulator 0-0010: Failed to setup device!
fan53555-regulator: probe of 0-0010 failed with error -22
with this patch, the dmesg output is:
vdd_gpu: supplied by vcc5v0_sys

The regulators are described as:
- Dedicated power management IC TCS4525
- Lithium battery protection chip TCS4526

This has been tested with a Radxa Rock Pi N10.

Fixes: f9028dcdf589 ("regulator: fan53555: only bind tcs4525 to correct chip id")
Signed-off-by: Rudi Heitbaum <rudi@xxxxxxxxxxxx>
---
drivers/regulator/fan53555.c | 8 ++++++++
1 file changed, 8 insertions(+)

diff --git a/drivers/regulator/fan53555.c b/drivers/regulator/fan53555.c
index 2695be617373..ddab9359ea20 100644
--- a/drivers/regulator/fan53555.c
+++ b/drivers/regulator/fan53555.c
@@ -90,6 +90,7 @@ enum {
};

enum {
+ TCS4525_CHIP_ID_00 = 0,
TCS4525_CHIP_ID_12 = 12,
};

@@ -373,6 +374,7 @@ static int fan53555_voltages_setup_silergy(struct fan53555_device_info *di)
static int fan53526_voltages_setup_tcs(struct fan53555_device_info *di)
{
switch (di->chip_id) {
+ case TCS4525_CHIP_ID_00:
case TCS4525_CHIP_ID_12:
di->slew_reg = TCS4525_TIME;
di->slew_mask = TCS_SLEW_MASK;
@@ -564,6 +566,9 @@ static const struct of_device_id __maybe_unused fan53555_dt_ids[] = {
}, {
.compatible = "tcs,tcs4525",
.data = (void *)FAN53526_VENDOR_TCS
+ }, {
+ .compatible = "tcs,tcs4526",
+ .data = (void *)FAN53526_VENDOR_TCS
},
{ }
};
@@ -672,6 +677,9 @@ static const struct i2c_device_id fan53555_id[] = {
}, {
.name = "tcs4525",
.driver_data = FAN53526_VENDOR_TCS
+ }, {
+ .name = "tcs4526",
+ .driver_data = FAN53526_VENDOR_TCS
},
{ },
};
--
2.29.2