Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / drivers / pinctrl / freescale / pinctrl-imx.h

diff --git a/kernel/drivers/pinctrl/freescale/pinctrl-imx.h b/kernel/drivers/pinctrl/freescale/pinctrl-imx.h
new file mode 100644 (file)
index 0000000..49e55d3
--- /dev/null
+++ b/kernel/drivers/pinctrl/freescale/pinctrl-imx.h
@@ -0,0 +1,100 @@
+/*
+ * 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 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_group - describes an IMX pin group
+ * @name: the name of this specific pin group
+ * @npins: the number of pins in this group array, i.e. the number of
+ *     elements in .pins so we can iterate over that array
+ * @pin_ids: array of pin_ids. pinctrl forces us to maintain such an array
+ * @pins: array of pins
+ */
+struct imx_pin_group {
+       const char *name;
+       unsigned npins;
+       unsigned int *pin_ids;
+       struct imx_pin *pins;
+};
+
+/**
+ * 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
+ * @mux_reg: mux register offset
+ * @conf_reg: config register offset
+ */
+struct imx_pin_reg {
+       s16 mux_reg;
+       s16 conf_reg;
+};
+
+struct imx_pinctrl_soc_info {
+       struct device *dev;
+       const struct pinctrl_pin_desc *pins;
+       unsigned int npins;
+       struct imx_pin_reg *pin_regs;
+       struct imx_pin_group *groups;
+       unsigned int ngroups;
+       struct imx_pmx_func *functions;
+       unsigned int nfunctions;
+       unsigned int flags;
+};
+
+#define SHARE_MUX_CONF_REG     0x1
+
+#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,
+                       struct imx_pinctrl_soc_info *info);
+int imx_pinctrl_remove(struct platform_device *pdev);
+#endif /* __DRIVERS_PINCTRL_IMX_H */