From: Rudi Heitbaum <rudi@heitbaum.com>
Date: Wed, 2 Jun 2021 11:29:47 +0000 (+0000)
Subject: regulator: fan53555: add tcs4526
X-Git-Tag: accepted/tizen/unified/20230118.172025~6784^2~37
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=5eee5eced95f1b35c8567688ed52932b7e58deee;p=platform%2Fkernel%2Flinux-rpi.git

regulator: fan53555: add tcs4526

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>
---

diff --git a/drivers/regulator/fan53555.c b/drivers/regulator/fan53555.c
index eb67500..dac1fb5 100644
--- a/drivers/regulator/fan53555.c
+++ b/drivers/regulator/fan53555.c
@@ -92,6 +92,10 @@ enum {
 	TCS4525_CHIP_ID_12 = 12,
 };
 
+enum {
+	TCS4526_CHIP_ID_00 = 0,
+};
+
 /* IC mask revision */
 enum {
 	FAN53555_CHIP_REV_00 = 0x3,
@@ -341,6 +345,7 @@ static int fan53526_voltages_setup_tcs(struct fan53555_device_info *di)
 {
 	switch (di->chip_id) {
 	case TCS4525_CHIP_ID_12:
+	case TCS4526_CHIP_ID_00:
 		di->slew_reg = TCS4525_TIME;
 		di->slew_mask = TCS_SLEW_MASK;
 		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",
 		.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",
 		.driver_data = FAN53526_VENDOR_TCS
+	}, {
+		.name = "tcs4526",
+		.driver_data = FAN53526_VENDOR_TCS
 	},
 	{ },
 };