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Diffstat (limited to 'drivers/pinctrl/visconti/pinctrl-common.h')
-rw-r--r--drivers/pinctrl/visconti/pinctrl-common.h96
1 files changed, 96 insertions, 0 deletions
diff --git a/drivers/pinctrl/visconti/pinctrl-common.h b/drivers/pinctrl/visconti/pinctrl-common.h
new file mode 100644
index 000000000..56a2eb022
--- /dev/null
+++ b/drivers/pinctrl/visconti/pinctrl-common.h
@@ -0,0 +1,96 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (c) 2020 TOSHIBA CORPORATION
+ * Copyright (c) 2020 Toshiba Electronic Devices & Storage Corporation
+ * Copyright (c) 2020 Nobuhiro Iwamatsu <nobuhiro1.iwamatsu@toshiba.co.jp>
+ */
+
+#ifndef __VISCONTI_PINCTRL_COMMON_H__
+#define __VISCONTI_PINCTRL_COMMON_H__
+
+struct pinctrl_pin_desc;
+
+/* PIN */
+#define VISCONTI_PINS(pins_name, ...) \
+ static const unsigned int pins_name ## _pins[] = { __VA_ARGS__ }
+
+struct visconti_desc_pin {
+ struct pinctrl_pin_desc pin;
+ unsigned int dsel_offset;
+ unsigned int dsel_shift;
+ unsigned int pude_offset;
+ unsigned int pudsel_offset;
+ unsigned int pud_shift;
+};
+
+#define VISCONTI_PIN(_pin, dsel, d_sh, pude, pudsel, p_sh) \
+{ \
+ .pin = _pin, \
+ .dsel_offset = dsel, \
+ .dsel_shift = d_sh, \
+ .pude_offset = pude, \
+ .pudsel_offset = pudsel, \
+ .pud_shift = p_sh, \
+}
+
+/* Group */
+#define VISCONTI_GROUPS(groups_name, ...) \
+ static const char * const groups_name ## _grps[] = { __VA_ARGS__ }
+
+struct visconti_mux {
+ unsigned int offset;
+ unsigned int mask;
+ unsigned int val;
+};
+
+struct visconti_pin_group {
+ const char *name;
+ const unsigned int *pins;
+ unsigned int nr_pins;
+ struct visconti_mux mux;
+};
+
+#define VISCONTI_PIN_GROUP(group_name, off, msk, v) \
+{ \
+ .name = __stringify(group_name) "_grp", \
+ .pins = group_name ## _pins, \
+ .nr_pins = ARRAY_SIZE(group_name ## _pins), \
+ .mux = { \
+ .offset = off, \
+ .mask = msk, \
+ .val = v, \
+ } \
+}
+
+/* MUX */
+struct visconti_pin_function {
+ const char *name;
+ const char * const *groups;
+ unsigned int nr_groups;
+};
+
+#define VISCONTI_PIN_FUNCTION(func) \
+{ \
+ .name = #func, \
+ .groups = func ## _grps, \
+ .nr_groups = ARRAY_SIZE(func ## _grps), \
+}
+
+/* chip dependent data */
+struct visconti_pinctrl_devdata {
+ const struct visconti_desc_pin *pins;
+ unsigned int nr_pins;
+ const struct visconti_pin_group *groups;
+ unsigned int nr_groups;
+ const struct visconti_pin_function *functions;
+ unsigned int nr_functions;
+
+ const struct visconti_mux *gpio_mux;
+
+ void (*unlock)(void __iomem *base);
+};
+
+int visconti_pinctrl_probe(struct platform_device *pdev,
+ const struct visconti_pinctrl_devdata *devdata);
+
+#endif /* __VISCONTI_PINCTRL_COMMON_H__ */