1 files changed, 116 insertions, 0 deletions
diff --git a/drivers/pinctrl/freescale/pinctrl-imx.h b/drivers/pinctrl/freescale/pinctrl-imx.h
new file mode 100644
index 000000000..4b8225ccb
--- /dev/null
+++ b/drivers/pinctrl/freescale/pinctrl-imx.h
@@ -0,0 +1,116 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * IMX pinmux core definitions
+ *
+ * Copyright (C) 2012 Freescale Semiconductor, Inc.
+ * Copyright (C) 2012 Linaro Ltd.
+ *
+ * Author: Dong Aisheng <dong.aisheng@linaro.org>
+ */
+
+#ifndef __DRIVERS_PINCTRL_IMX_H
+#define __DRIVERS_PINCTRL_IMX_H
+
+#include <linux/pinctrl/pinconf-generic.h>
+#include <linux/pinctrl/pinmux.h>
+
+struct platform_device;
+
+extern struct pinmux_ops imx_pmx_ops;
+
+/**
+ * struct imx_pin - describes a single i.MX pin
+ * @pin: the pin_id of this pin
+ * @mux_mode: the mux mode for this pin.
+ * @input_reg: the select input register offset for this pin if any
+ *	0 if no select input setting needed.
+ * @input_val: the select input value for this pin.
+ * @configs: the config for this pin.
+ */
+struct imx_pin {
+	unsigned int pin;
+	unsigned int mux_mode;
+	u16 input_reg;
+	unsigned int input_val;
+	unsigned long config;
+};
+
+/**
+ * struct imx_pin_reg - describe a pin reg map
+ * @mux_reg: mux register offset
+ * @conf_reg: config register offset
+ */
+struct imx_pin_reg {
+	s16 mux_reg;
+	s16 conf_reg;
+};
+
+/* decode a generic config into raw register value */
+struct imx_cfg_params_decode {
+	enum pin_config_param param;
+	u32 mask;
+	u8 shift;
+	bool invert;
+};
+
+struct imx_pinctrl_soc_info {
+	const struct pinctrl_pin_desc *pins;
+	unsigned int npins;
+	unsigned int flags;
+	const char *gpr_compatible;
+
+	/* MUX_MODE shift and mask in case SHARE_MUX_CONF_REG */
+	unsigned int mux_mask;
+	u8 mux_shift;
+
+	/* generic pinconf */
+	bool generic_pinconf;
+	const struct pinconf_generic_params *custom_params;
+	unsigned int num_custom_params;
+	const struct imx_cfg_params_decode *decodes;
+	unsigned int num_decodes;
+	void (*fixup)(unsigned long *configs, unsigned int num_configs,
+		      u32 *raw_config);
+
+	int (*gpio_set_direction)(struct pinctrl_dev *pctldev,
+				  struct pinctrl_gpio_range *range,
+				  unsigned offset,
+				  bool input);
+};
+
+/**
+ * @dev: a pointer back to containing device
+ * @base: the offset to the controller in virtual memory
+ */
+struct imx_pinctrl {
+	struct device *dev;
+	struct pinctrl_dev *pctl;
+	void __iomem *base;
+	void __iomem *input_sel_base;
+	const struct imx_pinctrl_soc_info *info;
+	struct imx_pin_reg *pin_regs;
+	unsigned int group_index;
+	struct mutex mutex;
+};
+
+#define IMX_CFG_PARAMS_DECODE(p, m, o) \
+	{ .param = p, .mask = m, .shift = o, .invert = false, }
+
+#define IMX_CFG_PARAMS_DECODE_INVERT(p, m, o) \
+	{ .param = p, .mask = m, .shift = o, .invert = true, }
+
+#define SHARE_MUX_CONF_REG	0x1
+#define ZERO_OFFSET_VALID	0x2
+
+#define NO_MUX		0x0
+#define NO_PAD		0x0
+
+#define IMX_PINCTRL_PIN(pin) PINCTRL_PIN(pin, #pin)
+
+#define PAD_CTL_MASK(len)	((1 << len) - 1)
+#define IMX_MUX_MASK	0x7
+#define IOMUXC_CONFIG_SION	(0x1 << 4)
+
+int imx_pinctrl_probe(struct platform_device *pdev,
+			const struct imx_pinctrl_soc_info *info);
+#endif /* __DRIVERS_PINCTRL_IMX_H */