1 files changed, 85 insertions, 0 deletions
diff --git a/drivers/pinctrl/qcom/pinctrl-lpass-lpi.h b/drivers/pinctrl/qcom/pinctrl-lpass-lpi.h
new file mode 100644
index 000000000..afbac2a6c
--- /dev/null
+++ b/drivers/pinctrl/qcom/pinctrl-lpass-lpi.h
@@ -0,0 +1,85 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (c) 2016-2019, The Linux Foundation. All rights reserved.
+ * Copyright (c) 2020 Linaro Ltd.
+ */
+#ifndef __PINCTRL_LPASS_LPI_H__
+#define __PINCTRL_LPASS_LPI_H__
+
+#include <linux/bitops.h>
+#include <linux/bitfield.h>
+#include "../core.h"
+
+#define LPI_SLEW_RATE_CTL_REG	0xa000
+#define LPI_TLMM_REG_OFFSET		0x1000
+#define LPI_SLEW_RATE_MAX		0x03
+#define LPI_SLEW_BITS_SIZE		0x02
+#define LPI_SLEW_RATE_MASK		GENMASK(1, 0)
+#define LPI_GPIO_CFG_REG		0x00
+#define LPI_GPIO_PULL_MASK		GENMASK(1, 0)
+#define LPI_GPIO_FUNCTION_MASK		GENMASK(5, 2)
+#define LPI_GPIO_OUT_STRENGTH_MASK	GENMASK(8, 6)
+#define LPI_GPIO_OE_MASK		BIT(9)
+#define LPI_GPIO_VALUE_REG		0x04
+#define LPI_GPIO_VALUE_IN_MASK		BIT(0)
+#define LPI_GPIO_VALUE_OUT_MASK		BIT(1)
+
+#define LPI_GPIO_BIAS_DISABLE		0x0
+#define LPI_GPIO_PULL_DOWN		0x1
+#define LPI_GPIO_KEEPER			0x2
+#define LPI_GPIO_PULL_UP		0x3
+#define LPI_GPIO_DS_TO_VAL(v)		(v / 2 - 1)
+#define LPI_NO_SLEW				-1
+
+#define LPI_FUNCTION(fname)			                \
+	[LPI_MUX_##fname] = {		                \
+		.name = #fname,				\
+		.groups = fname##_groups,               \
+		.ngroups = ARRAY_SIZE(fname##_groups),	\
+	}
+
+#define LPI_PINGROUP(id, soff, f1, f2, f3, f4)		\
+	{						\
+		.group.name = "gpio" #id,			\
+		.group.pins = gpio##id##_pins,		\
+		.pin = id,				\
+		.slew_offset = soff,			\
+		.group.num_pins = ARRAY_SIZE(gpio##id##_pins),	\
+		.funcs = (int[]){			\
+			LPI_MUX_gpio,			\
+			LPI_MUX_##f1,			\
+			LPI_MUX_##f2,			\
+			LPI_MUX_##f3,			\
+			LPI_MUX_##f4,			\
+		},					\
+		.nfuncs = 5,				\
+	}
+
+struct lpi_pingroup {
+	struct group_desc group;
+	unsigned int pin;
+	/* Bit offset in slew register for SoundWire pins only */
+	int slew_offset;
+	unsigned int *funcs;
+	unsigned int nfuncs;
+};
+
+struct lpi_function {
+	const char *name;
+	const char * const *groups;
+	unsigned int ngroups;
+};
+
+struct lpi_pinctrl_variant_data {
+	const struct pinctrl_pin_desc *pins;
+	int npins;
+	const struct lpi_pingroup *groups;
+	int ngroups;
+	const struct lpi_function *functions;
+	int nfunctions;
+};
+
+int lpi_pinctrl_probe(struct platform_device *pdev);
+int lpi_pinctrl_remove(struct platform_device *pdev);
+
+#endif /*__PINCTRL_LPASS_LPI_H__*/