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Diffstat (limited to 'drivers/pinctrl/pinctrl-imx.h')
-rw-r--r--drivers/pinctrl/pinctrl-imx.h106
1 files changed, 106 insertions, 0 deletions
diff --git a/drivers/pinctrl/pinctrl-imx.h b/drivers/pinctrl/pinctrl-imx.h
new file mode 100644
index 000000000000..9b65e7828f1d
--- /dev/null
+++ b/drivers/pinctrl/pinctrl-imx.h
@@ -0,0 +1,106 @@
+/*
+ * IMX pinmux core definitions
+ *
+ * Copyright (C) 2012 Freescale Semiconductor, Inc.
+ * Copyright (C) 2012 Linaro Ltd.
+ *
+ * Author: Dong Aisheng <dong.aisheng@linaro.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#ifndef __DRIVERS_PINCTRL_IMX_H
+#define __DRIVERS_PINCTRL_IMX_H
+
+struct platform_device;
+
+/**
+ * struct imx_pin_group - describes an IMX pin group
+ * @name: the name of this specific pin group
+ * @pins: an array of discrete physical pins used in this group, taken
+ * from the driver-local pin enumeration space
+ * @npins: the number of pins in this group array, i.e. the number of
+ * elements in .pins so we can iterate over that array
+ * @mux_mode: the mux mode for each pin in this group. The size of this
+ * array is the same as pins.
+ * @configs: the config for each pin in this group. The size of this
+ * array is the same as pins.
+ */
+struct imx_pin_group {
+ const char *name;
+ unsigned int *pins;
+ unsigned npins;
+ unsigned int *mux_mode;
+ unsigned long *configs;
+};
+
+/**
+ * struct imx_pmx_func - describes IMX pinmux functions
+ * @name: the name of this specific function
+ * @groups: corresponding pin groups
+ * @num_groups: the number of groups
+ */
+struct imx_pmx_func {
+ const char *name;
+ const char **groups;
+ unsigned num_groups;
+};
+
+/**
+ * struct imx_pin_reg - describe a pin reg map
+ * The last 3 members are used for select input setting
+ * @pid: pin id
+ * @mux_reg: mux register offset
+ * @conf_reg: config register offset
+ * @mux_mode: mux mode
+ * @input_reg: select input register offset for this mux if any
+ * 0 if no select input setting needed.
+ * @input_val: the value set to select input register
+ */
+struct imx_pin_reg {
+ u16 pid;
+ u16 mux_reg;
+ u16 conf_reg;
+ u8 mux_mode;
+ u16 input_reg;
+ u8 input_val;
+};
+
+struct imx_pinctrl_soc_info {
+ struct device *dev;
+ const struct pinctrl_pin_desc *pins;
+ unsigned int npins;
+ const struct imx_pin_reg *pin_regs;
+ unsigned int npin_regs;
+ struct imx_pin_group *groups;
+ unsigned int ngroups;
+ struct imx_pmx_func *functions;
+ unsigned int nfunctions;
+};
+
+#define NO_MUX 0x0
+#define NO_PAD 0x0
+
+#define IMX_PIN_REG(id, conf, mux, mode, input, val) \
+ { \
+ .pid = id, \
+ .conf_reg = conf, \
+ .mux_reg = mux, \
+ .mux_mode = mode, \
+ .input_reg = input, \
+ .input_val = val, \
+ }
+
+#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,
+ struct imx_pinctrl_soc_info *info);
+int imx_pinctrl_remove(struct platform_device *pdev);
+#endif /* __DRIVERS_PINCTRL_IMX_H */