pinctrl: meson: add axg support
This adds support for the Amlogic AXG SoC pinctrl and GPIO controller
using a specific set of pinctrl functions which differs from the GX SoCs.
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
diff --git a/drivers/pinctrl/meson/pinctrl-meson-axg.h b/drivers/pinctrl/meson/pinctrl-meson-axg.h
new file mode 100644
index 0000000..c8d2b3a
--- /dev/null
+++ b/drivers/pinctrl/meson/pinctrl-meson-axg.h
@@ -0,0 +1,66 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright (C) 2017 Jerome Brunet <jbrunet@baylibre.com>
+ * Copyright (C) 2017 Xingyu Chen <xingyu.chen@amlogic.com>
+ */
+
+#ifndef __PINCTRL_MESON_AXG_H__
+#define __PINCTRL_MESON_AXG_H__
+
+#include "pinctrl-meson.h"
+
+struct meson_pmx_bank {
+ const char *name;
+ unsigned int first;
+ unsigned int last;
+ unsigned int reg;
+ unsigned int offset;
+};
+
+struct meson_axg_pmx_data {
+ struct meson_pmx_bank *pmx_banks;
+ unsigned int num_pmx_banks;
+};
+
+#define BANK_PMX(n, f, l, r, o) \
+ { \
+ .name = n, \
+ .first = f, \
+ .last = l, \
+ .reg = r, \
+ .offset = o, \
+ }
+
+struct meson_pmx_axg_data {
+ unsigned int func;
+};
+
+#define PMX_DATA(f) \
+ { \
+ .func = f, \
+ }
+
+#define GROUP(grp, f) \
+ { \
+ .name = #grp, \
+ .pins = grp ## _pins, \
+ .num_pins = ARRAY_SIZE(grp ## _pins), \
+ .data = (const struct meson_pmx_axg_data[]){ \
+ PMX_DATA(f), \
+ }, \
+ }
+
+#define GPIO_GROUP(gpio, b) \
+ { \
+ .name = #gpio, \
+ .pins = (const unsigned int[]){ PIN(gpio, b) }, \
+ .num_pins = 1, \
+ .data = (const struct meson_pmx_axg_data[]){ \
+ PMX_DATA(0), \
+ }, \
+ }
+
+extern const struct pinctrl_ops meson_axg_pinctrl_ops;
+extern const struct driver meson_axg_gpio_driver;
+
+#endif /* __PINCTRL_MESON_AXG_H__ */