regulator: sy8824x: add SY20278 support

The differences between SY8824C and SY20278 are different regs
for mode/enable.

Signed-off-by: Jisheng Zhang <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Mark Brown <[e-mail]>

drivers/regulator/sy8824x.c

···
 	.vsel_count = 128,
 };
 
+static const struct sy8824_config sy20278_cfg = {
+	.vol_reg = 0x00,
+	.mode_reg = 0x01,
+	.enable_reg = 0x01,
+	.vsel_min = 762500,
+	.vsel_step = 12500,
+	.vsel_count = 64,
+};
+
 static const struct of_device_id sy8824_dt_ids[] = {
 	{
 		.compatible = "silergy,sy8824c",
···
 	{
 		.compatible = "silergy,sy20276",
 		.data = &sy20276_cfg
+	},
+	{
+		.compatible = "silergy,sy20278",
+		.data = &sy20278_cfg
 	},
 	{ }
 };