1 files changed, 29 insertions, 0 deletions
diff --git a/drivers/power/sy8106a.c b/drivers/power/sy8106a.c
new file mode 100644
index 0000000..bbf116f
--- /dev/null
+++ b/drivers/power/sy8106a.c
@@ -0,0 +1,29 @@
+/*
+ * (C) Copyright 2016
+ * Jelle van der Waa <jelle@vdwaa.nl>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+#include <common.h>
+#include <i2c.h>
+#include <sy8106a.h>
+
+#define SY8106A_I2C_ADDR 0x65
+#define SY8106A_VOUT1_SEL 1
+#define SY8106A_VOUT1_SEL_ENABLE (1 << 7)
+
+static u8 sy8106a_mvolt_to_cfg(int mvolt, int min, int max, int div)
+{
+	if (mvolt < min)
+		mvolt = min;
+	else if (mvolt > max)
+		mvolt = max;
+
+	return (mvolt - min) / div;
+}
+
+int sy8106a_set_vout1(unsigned int mvolt)
+{
+	u8 data = sy8106a_mvolt_to_cfg(mvolt, 680, 1950, 10) | SY8106A_VOUT1_SEL_ENABLE;
+	return i2c_write(SY8106A_I2C_ADDR, SY8106A_VOUT1_SEL, 1, &data, 1);
+}