Linux-libre 4.5-gnu

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 */