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authorMasahiro Yamada <yamada.masahiro@socionext.com>2017-10-12 14:36:15 +0300
committerLinus Walleij <linus.walleij@linaro.org>2017-10-23 11:36:58 +0300
commit1c59d045058750904926d5883ce8acdedbc52df3 (patch)
tree95a3a698cc704b5623cd9fca36f486d004fb27f7 /include/dt-bindings/gpio
parent2cbfca66ba5e00606bb0f24aba1e9cd8efe58849 (diff)
downloadlinux-1c59d045058750904926d5883ce8acdedbc52df3.tar.xz
dt-bindings: gpio: uniphier: add UniPhier GPIO binding
This GPIO controller is used on UniPhier SoC family. The vendor specific property "socionext,interrupt-ranges" is for specifying interrupt mapping to the parent interrupt controller because the mapping is not contiguous. It works like "ranges", but transforms "interrupts" instead of "reg". Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'include/dt-bindings/gpio')
-rw-r--r--include/dt-bindings/gpio/uniphier-gpio.h18
1 files changed, 18 insertions, 0 deletions
diff --git a/include/dt-bindings/gpio/uniphier-gpio.h b/include/dt-bindings/gpio/uniphier-gpio.h
new file mode 100644
index 000000000000..9f0ad174f61c
--- /dev/null
+++ b/include/dt-bindings/gpio/uniphier-gpio.h
@@ -0,0 +1,18 @@
+/*
+ * Copyright (C) 2017 Socionext Inc.
+ * Author: Masahiro Yamada <yamada.masahiro@socionext.com>
+ */
+
+#ifndef _DT_BINDINGS_GPIO_UNIPHIER_H
+#define _DT_BINDINGS_GPIO_UNIPHIER_H
+
+#define UNIPHIER_GPIO_LINES_PER_BANK 8
+
+#define UNIPHIER_GPIO_IRQ_OFFSET ((UNIPHIER_GPIO_LINES_PER_BANK) * 15)
+
+#define UNIPHIER_GPIO_PORT(bank, line) \
+ ((UNIPHIER_GPIO_LINES_PER_BANK) * (bank) + (line))
+
+#define UNIPHIER_GPIO_IRQ(n) ((UNIPHIER_GPIO_IRQ_OFFSET) + (n))
+
+#endif /* _DT_BINDINGS_GPIO_UNIPHIER_H */