1 files changed, 86 insertions, 0 deletions
diff --git a/include/linux/mfd/rohm-generic.h b/include/linux/mfd/rohm-generic.h
new file mode 100644
index 000000000..4eeb22876
--- /dev/null
+++ b/include/linux/mfd/rohm-generic.h
@@ -0,0 +1,86 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/* Copyright (C) 2018 ROHM Semiconductors */
+
+#ifndef __LINUX_MFD_ROHM_H__
+#define __LINUX_MFD_ROHM_H__
+
+#include <linux/regmap.h>
+#include <linux/regulator/driver.h>
+
+enum rohm_chip_type {
+	ROHM_CHIP_TYPE_BD9571,
+	ROHM_CHIP_TYPE_BD9573,
+	ROHM_CHIP_TYPE_BD9574,
+	ROHM_CHIP_TYPE_BD9576,
+	ROHM_CHIP_TYPE_BD71815,
+	ROHM_CHIP_TYPE_BD71828,
+	ROHM_CHIP_TYPE_BD71837,
+	ROHM_CHIP_TYPE_BD71847,
+	ROHM_CHIP_TYPE_AMOUNT
+};
+
+struct rohm_regmap_dev {
+	struct device *dev;
+	struct regmap *regmap;
+};
+
+#define ROHM_DVS_LEVEL_RUN		BIT(0)
+#define ROHM_DVS_LEVEL_IDLE		BIT(1)
+#define ROHM_DVS_LEVEL_SUSPEND		BIT(2)
+#define ROHM_DVS_LEVEL_LPSR		BIT(3)
+#define ROHM_DVS_LEVEL_SNVS		BIT(4)
+#define ROHM_DVS_LEVEL_VALID_AMOUNT	5
+#define ROHM_DVS_LEVEL_UNKNOWN		0
+
+/**
+ * struct rohm_dvs_config - dynamic voltage scaling register descriptions
+ *
+ * @level_map:		bitmap representing supported run-levels for this
+ *			regulator
+ * @run_reg:		register address for regulator config at 'run' state
+ * @run_mask:		value mask for regulator voltages at 'run' state
+ * @run_on_mask:	enable mask for regulator at 'run' state
+ * @idle_reg:		register address for regulator config at 'idle' state
+ * @idle_mask:		value mask for regulator voltages at 'idle' state
+ * @idle_on_mask:	enable mask for regulator at 'idle' state
+ * @suspend_reg:	register address for regulator config at 'suspend' state
+ * @suspend_mask:	value mask for regulator voltages at 'suspend' state
+ * @suspend_on_mask:	enable mask for regulator at 'suspend' state
+ * @lpsr_reg:		register address for regulator config at 'lpsr' state
+ * @lpsr_mask:		value mask for regulator voltages at 'lpsr' state
+ * @lpsr_on_mask:	enable mask for regulator at 'lpsr' state
+ *
+ * Description of ROHM PMICs voltage configuration registers for different
+ * system states. This is used to correctly configure the PMIC at startup
+ * based on values read from DT.
+ */
+struct rohm_dvs_config {
+	uint64_t level_map;
+	unsigned int run_reg;
+	unsigned int run_mask;
+	unsigned int run_on_mask;
+	unsigned int idle_reg;
+	unsigned int idle_mask;
+	unsigned int idle_on_mask;
+	unsigned int suspend_reg;
+	unsigned int suspend_mask;
+	unsigned int suspend_on_mask;
+	unsigned int lpsr_reg;
+	unsigned int lpsr_mask;
+	unsigned int lpsr_on_mask;
+	unsigned int snvs_reg;
+	unsigned int snvs_mask;
+	unsigned int snvs_on_mask;
+};
+
+#if IS_ENABLED(CONFIG_REGULATOR_ROHM)
+int rohm_regulator_set_dvs_levels(const struct rohm_dvs_config *dvs,
+				  struct device_node *np,
+				  const struct regulator_desc *desc,
+				  struct regmap *regmap);
+
+int rohm_regulator_set_voltage_sel_restricted(struct regulator_dev *rdev,
+					      unsigned int sel);
+#endif
+
+#endif