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Diffstat (limited to 'drivers/pinctrl/pxa/pinctrl-pxa2xx.h')
-rw-r--r--drivers/pinctrl/pxa/pinctrl-pxa2xx.h92
1 files changed, 92 insertions, 0 deletions
diff --git a/drivers/pinctrl/pxa/pinctrl-pxa2xx.h b/drivers/pinctrl/pxa/pinctrl-pxa2xx.h
new file mode 100644
index 000000000..8be1e0b79
--- /dev/null
+++ b/drivers/pinctrl/pxa/pinctrl-pxa2xx.h
@@ -0,0 +1,92 @@
+/*
+ * Marvell PXA2xx family pin control
+ *
+ * Copyright (C) 2015 Robert Jarzmik
+ *
+ * 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; version 2 of the License.
+ *
+ */
+
+#ifndef __PINCTRL_PXA_H
+#define __PINCTRL_PXA_H
+
+#define PXA_FUNCTION(_dir, _af, _name) \
+ { \
+ .name = _name, \
+ .muxval = (_dir | (_af << 1)), \
+ }
+
+#define PXA_PIN(_pin, funcs...) \
+ { \
+ .pin = _pin, \
+ .functions = (struct pxa_desc_function[]){ \
+ funcs, { } }, \
+ }
+
+#define PXA_GPIO_PIN(_pin, funcs...) \
+ { \
+ .pin = _pin, \
+ .functions = (struct pxa_desc_function[]){ \
+ PXA_FUNCTION(0, 0, "gpio_in"), \
+ PXA_FUNCTION(1, 0, "gpio_out"), \
+ funcs, { } }, \
+ }
+
+#define PXA_GPIO_ONLY_PIN(_pin) \
+ { \
+ .pin = _pin, \
+ .functions = (struct pxa_desc_function[]){ \
+ PXA_FUNCTION(0, 0, "gpio_in"), \
+ PXA_FUNCTION(1, 0, "gpio_out"), \
+ { } }, \
+ }
+
+#define PXA_PINCTRL_PIN(pin) \
+ PINCTRL_PIN(pin, "P" #pin)
+
+struct pxa_desc_function {
+ const char *name;
+ u8 muxval;
+};
+
+struct pxa_desc_pin {
+ struct pinctrl_pin_desc pin;
+ struct pxa_desc_function *functions;
+};
+
+struct pxa_pinctrl_group {
+ const char *name;
+ unsigned pin;
+};
+
+struct pxa_pinctrl_function {
+ const char *name;
+ const char **groups;
+ unsigned ngroups;
+};
+
+struct pxa_pinctrl {
+ spinlock_t lock;
+ void __iomem **base_gafr;
+ void __iomem **base_gpdr;
+ void __iomem **base_pgsr;
+ struct device *dev;
+ struct pinctrl_desc desc;
+ struct pinctrl_dev *pctl_dev;
+ unsigned npins;
+ const struct pxa_desc_pin *ppins;
+ unsigned ngroups;
+ struct pxa_pinctrl_group *groups;
+ unsigned nfuncs;
+ struct pxa_pinctrl_function *functions;
+ char *name;
+};
+
+int pxa2xx_pinctrl_init(struct platform_device *pdev,
+ const struct pxa_desc_pin *ppins, int npins,
+ void __iomem *base_gafr[], void __iomem *base_gpdr[],
+ void __iomem *base_gpsr[]);
+
+#endif /* __PINCTRL_PXA_H */