summaryrefslogtreecommitdiff
path: root/include/linux/pinctrl/consumer.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/linux/pinctrl/consumer.h')
-rw-r--r--include/linux/pinctrl/consumer.h118
1 files changed, 118 insertions, 0 deletions
diff --git a/include/linux/pinctrl/consumer.h b/include/linux/pinctrl/consumer.h
new file mode 100644
index 000000000000..9c8513d5d0fb
--- /dev/null
+++ b/include/linux/pinctrl/consumer.h
@@ -0,0 +1,118 @@
+/*
+ * Consumer interface the pin control subsystem
+ *
+ * Copyright (C) 2012 ST-Ericsson SA
+ * Written on behalf of Linaro for ST-Ericsson
+ * Based on bits of regulator core, gpio core and clk core
+ *
+ * Author: Linus Walleij <linus.walleij@linaro.org>
+ *
+ * License terms: GNU General Public License (GPL) version 2
+ */
+#ifndef __LINUX_PINCTRL_CONSUMER_H
+#define __LINUX_PINCTRL_CONSUMER_H
+
+#include <linux/list.h>
+#include <linux/seq_file.h>
+#include "pinctrl.h"
+
+/* This struct is private to the core and should be regarded as a cookie */
+struct pinmux;
+
+#ifdef CONFIG_PINMUX
+
+/* External interface to pinmux */
+extern int pinmux_request_gpio(unsigned gpio);
+extern void pinmux_free_gpio(unsigned gpio);
+extern int pinmux_gpio_direction_input(unsigned gpio);
+extern int pinmux_gpio_direction_output(unsigned gpio);
+extern struct pinmux * __must_check pinmux_get(struct device *dev, const char *name);
+extern void pinmux_put(struct pinmux *pmx);
+extern int pinmux_enable(struct pinmux *pmx);
+extern void pinmux_disable(struct pinmux *pmx);
+
+#else /* !CONFIG_PINMUX */
+
+static inline int pinmux_request_gpio(unsigned gpio)
+{
+ return 0;
+}
+
+static inline void pinmux_free_gpio(unsigned gpio)
+{
+}
+
+static inline int pinmux_gpio_direction_input(unsigned gpio)
+{
+ return 0;
+}
+
+static inline int pinmux_gpio_direction_output(unsigned gpio)
+{
+ return 0;
+}
+
+static inline struct pinmux * __must_check pinmux_get(struct device *dev, const char *name)
+{
+ return NULL;
+}
+
+static inline void pinmux_put(struct pinmux *pmx)
+{
+}
+
+static inline int pinmux_enable(struct pinmux *pmx)
+{
+ return 0;
+}
+
+static inline void pinmux_disable(struct pinmux *pmx)
+{
+}
+
+#endif /* CONFIG_PINMUX */
+
+#ifdef CONFIG_PINCONF
+
+extern int pin_config_get(const char *dev_name, const char *name,
+ unsigned long *config);
+extern int pin_config_set(const char *dev_name, const char *name,
+ unsigned long config);
+extern int pin_config_group_get(const char *dev_name,
+ const char *pin_group,
+ unsigned long *config);
+extern int pin_config_group_set(const char *dev_name,
+ const char *pin_group,
+ unsigned long config);
+
+#else
+
+static inline int pin_config_get(const char *dev_name, const char *name,
+ unsigned long *config)
+{
+ return 0;
+}
+
+static inline int pin_config_set(const char *dev_name, const char *name,
+ unsigned long config)
+{
+ return 0;
+}
+
+static inline int pin_config_group_get(const char *dev_name,
+ const char *pin_group,
+ unsigned long *config)
+{
+ return 0;
+}
+
+static inline int pin_config_group_set(const char *dev_name,
+ const char *pin_group,
+ unsigned long config)
+{
+ return 0;
+}
+
+#endif
+
+#endif /* __LINUX_PINCTRL_CONSUMER_H */