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authorStephen Warren <swarren@nvidia.com>2016-04-12 11:46:37 -0600
committerThierry Reding <treding@nvidia.com>2016-04-22 13:32:29 +0200
commitec6b925579b40225d58f0374ada0e40a003cde16 (patch)
tree00992a072fbde89db2a9fb947e1e485c4519cb4c /include/dt-bindings/gpio
parent1e48b695d79f9afb6357fe0217b2829e0faed77d (diff)
downloadlinux-ec6b925579b40225d58f0374ada0e40a003cde16.tar.bz2
ARM: tegra: Add DT binding for Tegra186 GPIO controllers
Tegra186 contains two separate but mostly similar GPIO controllers. Register layout differs significantly from previous Tegra generations, and so a new binding is required to describe them in device tree. This patch adds that binding. Signed-off-by: Stephen Warren <swarren@nvidia.com> Acked-by: Rob Herring <robh@kernel.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Thierry Reding <treding@nvidia.com>
Diffstat (limited to 'include/dt-bindings/gpio')
-rw-r--r--include/dt-bindings/gpio/tegra186-gpio.h56
1 files changed, 56 insertions, 0 deletions
diff --git a/include/dt-bindings/gpio/tegra186-gpio.h b/include/dt-bindings/gpio/tegra186-gpio.h
new file mode 100644
index 000000000000..38001c7023f1
--- /dev/null
+++ b/include/dt-bindings/gpio/tegra186-gpio.h
@@ -0,0 +1,56 @@
+/*
+ * This header provides constants for binding nvidia,tegra186-gpio*.
+ *
+ * The first cell in Tegra's GPIO specifier is the GPIO ID. The macros below
+ * provide names for this.
+ *
+ * The second cell contains standard flag values specified in gpio.h.
+ */
+
+#ifndef _DT_BINDINGS_GPIO_TEGRA_GPIO_H
+#define _DT_BINDINGS_GPIO_TEGRA_GPIO_H
+
+#include <dt-bindings/gpio/gpio.h>
+
+/* GPIOs implemented by main GPIO controller */
+#define TEGRA_MAIN_GPIO_PORT_A 0
+#define TEGRA_MAIN_GPIO_PORT_B 1
+#define TEGRA_MAIN_GPIO_PORT_C 2
+#define TEGRA_MAIN_GPIO_PORT_D 3
+#define TEGRA_MAIN_GPIO_PORT_E 4
+#define TEGRA_MAIN_GPIO_PORT_F 5
+#define TEGRA_MAIN_GPIO_PORT_G 6
+#define TEGRA_MAIN_GPIO_PORT_H 7
+#define TEGRA_MAIN_GPIO_PORT_I 8
+#define TEGRA_MAIN_GPIO_PORT_J 9
+#define TEGRA_MAIN_GPIO_PORT_K 10
+#define TEGRA_MAIN_GPIO_PORT_L 11
+#define TEGRA_MAIN_GPIO_PORT_M 12
+#define TEGRA_MAIN_GPIO_PORT_N 13
+#define TEGRA_MAIN_GPIO_PORT_O 14
+#define TEGRA_MAIN_GPIO_PORT_P 15
+#define TEGRA_MAIN_GPIO_PORT_Q 16
+#define TEGRA_MAIN_GPIO_PORT_R 17
+#define TEGRA_MAIN_GPIO_PORT_T 18
+#define TEGRA_MAIN_GPIO_PORT_X 19
+#define TEGRA_MAIN_GPIO_PORT_Y 20
+#define TEGRA_MAIN_GPIO_PORT_BB 21
+#define TEGRA_MAIN_GPIO_PORT_CC 22
+
+#define TEGRA_MAIN_GPIO(port, offset) \
+ ((TEGRA_MAIN_GPIO_PORT_##port * 8) + offset)
+
+/* GPIOs implemented by AON GPIO controller */
+#define TEGRA_AON_GPIO_PORT_S 0
+#define TEGRA_AON_GPIO_PORT_U 1
+#define TEGRA_AON_GPIO_PORT_V 2
+#define TEGRA_AON_GPIO_PORT_W 3
+#define TEGRA_AON_GPIO_PORT_Z 4
+#define TEGRA_AON_GPIO_PORT_AA 5
+#define TEGRA_AON_GPIO_PORT_EE 6
+#define TEGRA_AON_GPIO_PORT_FF 7
+
+#define TEGRA_AON_GPIO(port, offset) \
+ ((TEGRA_AON_GPIO_PORT_##port * 8) + offset)
+
+#endif