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Diffstat (limited to 'include/linux/pinctrl/pinconf.h')
-rw-r--r--include/linux/pinctrl/pinconf.h75
1 files changed, 75 insertions, 0 deletions
diff --git a/include/linux/pinctrl/pinconf.h b/include/linux/pinctrl/pinconf.h
new file mode 100644
index 000000000..09eb80f25
--- /dev/null
+++ b/include/linux/pinctrl/pinconf.h
@@ -0,0 +1,75 @@
+/*
+ * Interface the pinconfig portions of the pinctrl subsystem
+ *
+ * Copyright (C) 2011 ST-Ericsson SA
+ * Written on behalf of Linaro for ST-Ericsson
+ * This interface is used in the core to keep track of pins.
+ *
+ * Author: Linus Walleij <linus.walleij@linaro.org>
+ *
+ * License terms: GNU General Public License (GPL) version 2
+ */
+#ifndef __LINUX_PINCTRL_PINCONF_H
+#define __LINUX_PINCTRL_PINCONF_H
+
+#ifdef CONFIG_PINCONF
+
+#include <linux/pinctrl/machine.h>
+
+struct pinctrl_dev;
+struct seq_file;
+
+/**
+ * struct pinconf_ops - pin config operations, to be implemented by
+ * pin configuration capable drivers.
+ * @is_generic: for pin controllers that want to use the generic interface,
+ * this flag tells the framework that it's generic.
+ * @pin_config_get: get the config of a certain pin, if the requested config
+ * is not available on this controller this should return -ENOTSUPP
+ * and if it is available but disabled it should return -EINVAL
+ * @pin_config_set: configure an individual pin
+ * @pin_config_group_get: get configurations for an entire pin group
+ * @pin_config_group_set: configure all pins in a group
+ * @pin_config_dbg_parse_modify: optional debugfs to modify a pin configuration
+ * @pin_config_dbg_show: optional debugfs display hook that will provide
+ * per-device info for a certain pin in debugfs
+ * @pin_config_group_dbg_show: optional debugfs display hook that will provide
+ * per-device info for a certain group in debugfs
+ * @pin_config_config_dbg_show: optional debugfs display hook that will decode
+ * and display a driver's pin configuration parameter
+ */
+struct pinconf_ops {
+#ifdef CONFIG_GENERIC_PINCONF
+ bool is_generic;
+#endif
+ int (*pin_config_get) (struct pinctrl_dev *pctldev,
+ unsigned pin,
+ unsigned long *config);
+ int (*pin_config_set) (struct pinctrl_dev *pctldev,
+ unsigned pin,
+ unsigned long *configs,
+ unsigned num_configs);
+ int (*pin_config_group_get) (struct pinctrl_dev *pctldev,
+ unsigned selector,
+ unsigned long *config);
+ int (*pin_config_group_set) (struct pinctrl_dev *pctldev,
+ unsigned selector,
+ unsigned long *configs,
+ unsigned num_configs);
+ int (*pin_config_dbg_parse_modify) (struct pinctrl_dev *pctldev,
+ const char *arg,
+ unsigned long *config);
+ void (*pin_config_dbg_show) (struct pinctrl_dev *pctldev,
+ struct seq_file *s,
+ unsigned offset);
+ void (*pin_config_group_dbg_show) (struct pinctrl_dev *pctldev,
+ struct seq_file *s,
+ unsigned selector);
+ void (*pin_config_config_dbg_show) (struct pinctrl_dev *pctldev,
+ struct seq_file *s,
+ unsigned long config);
+};
+
+#endif
+
+#endif /* __LINUX_PINCTRL_PINCONF_H */