[PATCH 0/2] regulator: fan53555: Add support for Silergy SYM827

[PATCH 0/2] regulator: fan53555: Add support for Silergy SYM827

[Ben Grisdale via B4 Relay]

The Silergy SYM827 is a 6A synchronous step-down converter with a
similar I2C register map to the FAN53555, found in MediaTek MT8163
devices as the external VPROC regulator. It differs from the already
supported SYR827 in its die ID and output voltage range.

Signed-off-by: Ben Grisdale <bengris32@protonmail.ch>
---
Ben Grisdale (2):
      regulator: dt-bindings: fan53555: Add Silergy SYM827
      regulator: fan53555: Add support for Silergy SYM827

 Documentation/devicetree/bindings/regulator/fcs,fan53555.yaml |  1 +
 drivers/regulator/fan53555.c                                  | 11 +++++++++++
 2 files changed, 12 insertions(+)
---
base-commit: ddfe51b0a0f5dc9e415cc2c8ad8db17532dd426b
change-id: 20261105-fan53555-silergy-sym827-support-df98d756d3bb

Best regards,
--  
Ben Grisdale <bengris32@protonmail.ch>

[PATCH 1/2] regulator: dt-bindings: fan53555: Add Silergy SYM827

[Ben Grisdale via B4 Relay]

From: Ben Grisdale <bengris32@protonmail.ch>

Add a compatible string for the Silergy SYM827, a 6A synchronous
step-down converter with a similar I2C register map to the FAN53555.

Signed-off-by: Ben Grisdale <bengris32@protonmail.ch>
---
 Documentation/devicetree/bindings/regulator/fcs,fan53555.yaml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Documentation/devicetree/bindings/regulator/fcs,fan53555.yaml b/Documentation/devicetree/bindings/regulator/fcs,fan53555.yaml
index b35b8f365b0f..1bc22eb43dd9 100644
--- a/Documentation/devicetree/bindings/regulator/fcs,fan53555.yaml
+++ b/Documentation/devicetree/bindings/regulator/fcs,fan53555.yaml
@@ -20,6 +20,7 @@ properties:
           - fcs,fan53526
           - rockchip,rk8600
           - rockchip,rk8602
+          - silergy,sym827
           - silergy,syr827
           - silergy,syr828
           - tcs,tcs4525

-- 
2.56.0

[PATCH 2/2] regulator: fan53555: Add support for Silergy SYM827

[Ben Grisdale via B4 Relay]

From: Ben Grisdale <bengris32@protonmail.ch>

The Silergy SYM827 is a 6A synchronous step-down converter with a
similar I2C register map to the FAN53555.

SYM827 reports die ID 1. Its output starts at 600mV and increments in
12.5mV steps. No datasheet is available for this hardware, so the die ID
was read from devices, and the voltage range was taken from the
downstream driver [1].

Link: https://github.com/amazon-oss/android_kernel_amazon_mt8163/blob/7c8251b354f11a4703e6f7d5ad7b0c545bbed15d/drivers/regulator/sym827-regulator.c#L60-L62 [1]
Signed-off-by: Ben Grisdale <bengris32@protonmail.ch>
---
 drivers/regulator/fan53555.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/drivers/regulator/fan53555.c b/drivers/regulator/fan53555.c
index 6557d8cbe98d..9ac3a4e6832e 100644
--- a/drivers/regulator/fan53555.c
+++ b/drivers/regulator/fan53555.c
@@ -118,6 +118,7 @@ enum {
 };
 
 enum {
+	SILERGY_SYM827 = 1,
 	SILERGY_SYR82X = 8,
 	SILERGY_SYR83X = 9,
 };
@@ -412,6 +413,10 @@ static int fan53555_voltages_setup_silergy(struct fan53555_device_info *di)
 {
 	/* Init voltage range and step */
 	switch (di->chip_id) {
+	case SILERGY_SYM827:
+		di->vsel_min = 600000;
+		di->vsel_step = 12500;
+		break;
 	case SILERGY_SYR82X:
 	case SILERGY_SYR83X:
 		di->vsel_min = 712500;
@@ -684,6 +689,9 @@ static const struct of_device_id __maybe_unused fan53555_dt_ids[] = {
 	}, {
 		.compatible = "rockchip,rk8602",
 		.data = (void *)RK8602_VENDOR_ROCKCHIP
+	}, {
+		.compatible = "silergy,sym827",
+		.data = (void *)FAN53555_VENDOR_SILERGY,
 	}, {
 		.compatible = "silergy,syr827",
 		.data = (void *)FAN53555_VENDOR_SILERGY,
@@ -794,6 +802,9 @@ static const struct i2c_device_id fan53555_id[] = {
 	}, {
 		.name = "rk8602",
 		.driver_data = RK8602_VENDOR_ROCKCHIP
+	}, {
+		.name = "sym827",
+		.driver_data = FAN53555_VENDOR_SILERGY
 	}, {
 		.name = "syr827",
 		.driver_data = FAN53555_VENDOR_SILERGY

-- 
2.56.0

Re: [PATCH 1/2] regulator: dt-bindings: fan53555: Add Silergy SYM827

[Conor Dooley]

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Acked-by: Conor Dooley <conor.dooley@microchip.com>
pw-bot: not-applicable

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