leandrof/linux
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

regulator: fan53555: add tcs4526

Browse Source 
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.

Signed-off-by: Rudi Heitbaum <rudi@heitbaum.com>
Link: https://lore.kernel.org/r/20210602112943.GA119@5f9be87369f8
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Rudi Heitbaum 2021-06-02 11:29:47 +00:00 committed by Mark Brown
parent a747070e9b
commit 5eee5eced9
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
1 changed files with 11 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
drivers/regulator/fan53555.c
View File

@ -92,6 +92,10 @@ enum {
TCS4525_CHIP_ID_12 = 12, TCS4525_CHIP_ID_12 = 12,
}; };
enum {
TCS4526_CHIP_ID_00 = 0,
};
/* IC mask revision */ /* IC mask revision */
enum { enum {
FAN53555_CHIP_REV_00 = 0x3, FAN53555_CHIP_REV_00 = 0x3,
@ -341,6 +345,7 @@ static int fan53526_voltages_setup_tcs(struct fan53555_device_info *di)
{ {
switch (di->chip_id) { switch (di->chip_id) {
case TCS4525_CHIP_ID_12: case TCS4525_CHIP_ID_12:
case TCS4526_CHIP_ID_00:
di->slew_reg = TCS4525_TIME; di->slew_reg = TCS4525_TIME;
di->slew_mask = TCS_SLEW_MASK; di->slew_mask = TCS_SLEW_MASK;
di->ramp_delay_table = tcs_slew_rates; di->ramp_delay_table = tcs_slew_rates;
@ -536,6 +541,9 @@ static const struct of_device_id __maybe_unused fan53555_dt_ids[] = {
}, { }, {
.compatible = "tcs,tcs4525", .compatible = "tcs,tcs4525",
.data = (void *)FAN53526_VENDOR_TCS .data = (void *)FAN53526_VENDOR_TCS
}, {
.compatible = "tcs,tcs4526",
.data = (void *)FAN53526_VENDOR_TCS
}, },
{ } { }
}; };
@ -644,6 +652,9 @@ static const struct i2c_device_id fan53555_id[] = {
}, { }, {
.name = "tcs4525", .name = "tcs4525",
.driver_data = FAN53526_VENDOR_TCS .driver_data = FAN53526_VENDOR_TCS
}, {
.name = "tcs4526",
.driver_data = FAN53526_VENDOR_TCS
}, },
{ }, { },
}; };