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Diffstat (limited to 'drivers/pinctrl/exynos/pinctrl-exynos.h')
-rw-r--r--drivers/pinctrl/exynos/pinctrl-exynos.h77
1 files changed, 77 insertions, 0 deletions
diff --git a/drivers/pinctrl/exynos/pinctrl-exynos.h b/drivers/pinctrl/exynos/pinctrl-exynos.h
new file mode 100644
index 0000000000..abd582d318
--- /dev/null
+++ b/drivers/pinctrl/exynos/pinctrl-exynos.h
@@ -0,0 +1,77 @@
+/*
+ * Exynos pinctrl driver header.
+ * Copyright (C) 2016 Samsung Electronics
+ * Thomas Abraham <thomas.ab@samsung.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#ifndef __PINCTRL_EXYNOS_H_
+#define __PINCTRL_EXYNOS__H_
+
+#define PIN_CON 0x00 /* Offset of pin function register */
+#define PIN_DAT 0x04 /* Offset of pin data register */
+#define PIN_PUD 0x08 /* Offset of pin pull up/down config register */
+#define PIN_DRV 0x0C /* Offset of pin drive strength register */
+
+/**
+ * struct samsung_pin_bank_data: represent a controller pin-bank data.
+ * @offset: starting offset of the pin-bank registers.
+ * @nr_pins: number of pins included in this bank.
+ * @name: name to be prefixed for each pin in this pin bank.
+ */
+struct samsung_pin_bank_data {
+ u32 offset;
+ u8 nr_pins;
+ const char *name;
+};
+
+#define EXYNOS_PIN_BANK(pins, reg, id) \
+ { \
+ .offset = reg, \
+ .nr_pins = pins, \
+ .name = id \
+ }
+
+/**
+ * struct samsung_pin_ctrl: represent a pin controller.
+ * @pin_banks: list of pin banks included in this controller.
+ * @nr_banks: number of pin banks.
+ */
+struct samsung_pin_ctrl {
+ const struct samsung_pin_bank_data *pin_banks;
+ u32 nr_banks;
+};
+
+/**
+ * struct exynos_pinctrl_priv: exynos pin controller driver private data
+ * @pin_ctrl: pin controller bank information.
+ * @base: base address of the pin controller instance.
+ * @num_banks: number of pin banks included in the pin controller.
+ */
+struct exynos_pinctrl_priv {
+ const struct samsung_pin_ctrl *pin_ctrl;
+ unsigned long base;
+ int num_banks;
+};
+
+/**
+ * struct exynos_pinctrl_config_data: configuration for a peripheral.
+ * @offset: offset of the config registers in the controller.
+ * @mask: value of the register to be masked with.
+ * @value: new value to be programmed.
+ */
+struct exynos_pinctrl_config_data {
+ const unsigned int offset;
+ const unsigned int mask;
+ const unsigned int value;
+};
+
+
+void exynos_pinctrl_setup_peri(struct exynos_pinctrl_config_data *conf,
+ unsigned int num_conf, unsigned long base);
+int exynos_pinctrl_set_state(struct udevice *dev,
+ struct udevice *config);
+int exynos_pinctrl_probe(struct udevice *dev);
+
+#endif /* __PINCTRL_EXYNOS_H_ */