mfd: bd96801: Support ROHM BD96806

The ROHM BD96806 is from the software perspective almost identical to
the ROHM BD96802. The main difference is different voltage tuning
ranges. Add support differentiating these PMICs based on the compatible,
and invoking the regulator driver with correct IC type.

Signed-off-by: Matti Vaittinen <[e-mail]>
Acked-by: Conor Dooley <[e-mail]>
Link: https://lore.kernel.org/r/ccc95a[e-mail]
Signed-off-by: Lee Jones <[e-mail]>

drivers/mfd/rohm-bd96801.c

···
 	[REGULATOR_CELL] = { .name = "bd96805-regulator", },
 };
 
+static struct mfd_cell bd96806_cells[] = {
+	[WDG_CELL] = { .name = "bd96806-wdt", },
+	[REGULATOR_CELL] = { .name = "bd96806-regulator", },
+};
+
 static const struct regmap_range bd96801_volatile_ranges[] = {
 	/* Status registers */
 	regmap_reg_range(BD96801_REG_WD_FEED, BD96801_REG_WD_FAILCOUNT),
···
 	.unlock_val = BD96801_UNLOCK,
 };
 
+static struct bd968xx bd96806_data = {
+	.errb_irqs = bd96802_reg_errb_irqs,
+	.intb_irqs = bd96802_reg_intb_irqs,
+	.num_errb_irqs = ARRAY_SIZE(bd96802_reg_errb_irqs),
+	.num_intb_irqs = ARRAY_SIZE(bd96802_reg_intb_irqs),
+	.errb_irq_chip = &bd96802_irq_chip_errb,
+	.intb_irq_chip = &bd96802_irq_chip_intb,
+	.regmap_config = &bd96802_regmap_config,
+	.cells = bd96806_cells,
+	.num_cells = ARRAY_SIZE(bd96806_cells),
+	.unlock_reg = BD96801_LOCK_REG,
+	.unlock_val = BD96801_UNLOCK,
+};
+
 static int bd96801_i2c_probe(struct i2c_client *i2c)
 {
 	struct regmap_irq_chip_data *intb_irq_data, *errb_irq_data;
···
 		break;
 	case ROHM_CHIP_TYPE_BD96805:
 		ddata = &bd96805_data;
+		break;
+	case ROHM_CHIP_TYPE_BD96806:
+		ddata = &bd96806_data;
 		break;
 	default:
 		dev_err(&i2c->dev, "Unknown IC\n");
···
 	{ .compatible = "rohm,bd96801", .data = (void *)ROHM_CHIP_TYPE_BD96801 },
 	{ .compatible = "rohm,bd96802", .data = (void *)ROHM_CHIP_TYPE_BD96802 },
 	{ .compatible = "rohm,bd96805", .data = (void *)ROHM_CHIP_TYPE_BD96805 },
+	{ .compatible = "rohm,bd96806", .data = (void *)ROHM_CHIP_TYPE_BD96806 },
 	{ }
 };
 MODULE_DEVICE_TABLE(of, bd96801_of_match);

include/linux/mfd/rohm-generic.h

···
 	ROHM_CHIP_TYPE_BD96801,
 	ROHM_CHIP_TYPE_BD96802,
 	ROHM_CHIP_TYPE_BD96805,
+	ROHM_CHIP_TYPE_BD96806,
 	ROHM_CHIP_TYPE_AMOUNT
 };