1 files changed, 59 insertions, 0 deletions
diff --git a/include/drivers/allwinner/axp.h b/include/drivers/allwinner/axp.h
new file mode 100644
index 0000000..8b90c7f
--- /dev/null
+++ b/include/drivers/allwinner/axp.h
@@ -0,0 +1,59 @@
+/*
+ * Copyright (c) 2017-2019, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef AXP_H
+#define AXP_H
+
+#include <stdint.h>
+
+#define AXP20X_MODE_REG 0x3e
+#define AXP20X_MODE_I2C 0x00
+#define AXP20X_MODE_RSB 0x7c
+
+#define NA 0xff
+
+enum {
+	AXP803_CHIP_ID = 0x41,
+	AXP805_CHIP_ID = 0x40,
+};
+
+struct axp_regulator {
+	const char *dt_name;
+	uint16_t min_volt;
+	uint16_t max_volt;
+	uint16_t step;
+	unsigned char split;
+	unsigned char volt_reg;
+	unsigned char switch_reg;
+	unsigned char switch_bit;
+};
+
+extern const uint8_t axp_chip_id;
+extern const char *const axp_compatible;
+extern const struct axp_regulator axp_regulators[];
+
+/*
+ * Since the PMIC can be connected to multiple bus types,
+ * low-level read/write functions must be provided by the platform
+ */
+int axp_read(uint8_t reg);
+int axp_write(uint8_t reg, uint8_t val);
+int axp_clrsetbits(uint8_t reg, uint8_t clr_mask, uint8_t set_mask);
+#define axp_clrbits(reg, clr_mask) axp_clrsetbits(reg, clr_mask, 0)
+#define axp_setbits(reg, set_mask) axp_clrsetbits(reg, 0, set_mask)
+
+int axp_check_id(void);
+void axp_power_off(void);
+
+#if SUNXI_SETUP_REGULATORS == 1
+void axp_setup_regulators(const void *fdt);
+#else
+static inline void axp_setup_regulators(const void *fdt)
+{
+}
+#endif
+
+#endif /* AXP_H */