linux-kernel - [PATCH v2 10/14] mfd: bd96801: Support ROHM BD96805

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Message-ID: <7e81709d2ca56d1ee60ee8af5db86109869da862.1742802856.git.mazziesaccount@gmail.com>
Date: Mon, 24 Mar 2025 10:56:37 +0200
From: Matti Vaittinen <mazziesaccount@...il.com>
To: Matti Vaittinen <mazziesaccount@...il.com>,
	Matti Vaittinen <matti.vaittinen@...rohmeurope.com>
Cc: Lee Jones <lee@...nel.org>, Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Liam Girdwood <lgirdwood@...il.com>,
	Mark Brown <broonie@...nel.org>,
	Matti Vaittinen <mazziesaccount@...il.com>,
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH v2 10/14] mfd: bd96801: Support ROHM BD96805

The ROHM BD96805 is from the software perspective almost identical to
the ROHM BD96801. 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 <mazziesaccount@...il.com>

---
Revision history:
v1 => v2:
 - Use chip_type enum
---
 drivers/mfd/rohm-bd96801.c       | 22 ++++++++++++++++++++++
 include/linux/mfd/rohm-generic.h |  1 +
 2 files changed, 23 insertions(+)

diff --git a/drivers/mfd/rohm-bd96801.c b/drivers/mfd/rohm-bd96801.c
index e5ee5f556a55..dd0be7d675b8 100644
--- a/drivers/mfd/rohm-bd96801.c
+++ b/drivers/mfd/rohm-bd96801.c
@@ -220,6 +220,10 @@ static struct mfd_cell bd96802_cells[] = {
 	[WDG_CELL] = { .name = "bd96801-wdt", },
 	[REGULATOR_CELL] = { .name = "bd96802-regulator", },
 };
+static struct mfd_cell bd96805_cells[] = {
+	[WDG_CELL] = { .name = "bd96801-wdt", },
+	[REGULATOR_CELL] = { .name = "bd96805-regulator", },
+};
 
 static const struct regmap_range bd96801_volatile_ranges[] = {
 	/* Status registers */
@@ -599,6 +603,20 @@ static const struct bd968xx bd96802_data = {
 	.unlock_val = BD96801_UNLOCK,
 };
 
+static const struct bd968xx bd96805_data = {
+	.errb_irqs = bd96801_reg_errb_irqs,
+	.intb_irqs = bd96801_reg_intb_irqs,
+	.num_errb_irqs = ARRAY_SIZE(bd96801_reg_errb_irqs),
+	.num_intb_irqs = ARRAY_SIZE(bd96801_reg_intb_irqs),
+	.errb_irq_chip = &bd96801_irq_chip_errb,
+	.intb_irq_chip = &bd96801_irq_chip_intb,
+	.regmap_config = &bd96801_regmap_config,
+	.cells = bd96805_cells,
+	.num_cells = ARRAY_SIZE(bd96805_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;
@@ -621,6 +639,9 @@ static int bd96801_i2c_probe(struct i2c_client *i2c)
 	case ROHM_CHIP_TYPE_BD96802:
 		ddata = &bd96802_data;
 		break;
+	case ROHM_CHIP_TYPE_BD96805:
+		ddata = &bd96805_data;
+		break;
 	default:
 		dev_err(&i2c->dev, "Unknown IC\n");
 		return -EINVAL;
@@ -717,6 +738,7 @@ static int bd96801_i2c_probe(struct i2c_client *i2c)
 static const struct of_device_id bd96801_of_match[] = {
 	{ .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 },
 	{ }
 };
 MODULE_DEVICE_TABLE(of, bd96801_of_match);
diff --git a/include/linux/mfd/rohm-generic.h b/include/linux/mfd/rohm-generic.h
index 11b86f9129e3..867acf5baefc 100644
--- a/include/linux/mfd/rohm-generic.h
+++ b/include/linux/mfd/rohm-generic.h
@@ -18,6 +18,7 @@ enum rohm_chip_type {
 	ROHM_CHIP_TYPE_BD71847,
 	ROHM_CHIP_TYPE_BD96801,
 	ROHM_CHIP_TYPE_BD96802,
+	ROHM_CHIP_TYPE_BD96805,
 	ROHM_CHIP_TYPE_AMOUNT
 };
 
-- 
2.49.0


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