dt-bindings: power: Add ZynqMP power domain bindings

Add documentation to describe ZynqMP power domain bindings.

Signed-off-by: Rajan Vaja <rajan.vaja@xilinx.com>
Signed-off-by: Jolly Shah <jolly.shah@xilinx.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>

diff --git a/Documentation/devicetree/bindings/power/xlnx,zynqmp-genpd.txt b/Documentation/devicetree/bindings/power/xlnx,zynqmp-genpd.txt
new file mode 100644 (file)
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+++ b/Documentation/devicetree/bindings/power/xlnx,zynqmp-genpd.txt
@@ -0,0 +1,34 @@
+-----------------------------------------------------------
+Device Tree Bindings for the Xilinx Zynq MPSoC PM domains
+-----------------------------------------------------------
+The binding for zynqmp-power-controller follow the common
+generic PM domain binding[1].
+
+[1] Documentation/devicetree/bindings/power/power_domain.txt
+
+== Zynq MPSoC Generic PM Domain Node ==
+
+Required property:
+ - Below property should be in zynqmp-firmware node.
+ - #power-domain-cells:        Number of cells in a PM domain specifier. Must be 1.
+
+Power domain ID indexes are mentioned in
+include/dt-bindings/power/xlnx-zynqmp-power.h.
+
+-------
+Example
+-------
+
+firmware {
+       zynqmp_firmware: zynqmp-firmware {
+               ...
+               #power-domain-cells = <1>;
+               ...
+       };
+};
+
+sata {
+       ...
+       power-domains = <&zynqmp_firmware 28>;
+       ...
+};

diff --git a/include/dt-bindings/power/xlnx-zynqmp-power.h b/include/dt-bindings/power/xlnx-zynqmp-power.h
new file mode 100644 (file)
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+++ b/include/dt-bindings/power/xlnx-zynqmp-power.h
@@ -0,0 +1,39 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ *  Copyright (C) 2018 Xilinx, Inc.
+ */
+
+#ifndef _DT_BINDINGS_ZYNQMP_POWER_H
+#define _DT_BINDINGS_ZYNQMP_POWER_H
+
+#define                PD_USB_0        22
+#define                PD_USB_1        23
+#define                PD_TTC_0        24
+#define                PD_TTC_1        25
+#define                PD_TTC_2        26
+#define                PD_TTC_3        27
+#define                PD_SATA         28
+#define                PD_ETH_0        29
+#define                PD_ETH_1        30
+#define                PD_ETH_2        31
+#define                PD_ETH_3        32
+#define                PD_UART_0       33
+#define                PD_UART_1       34
+#define                PD_SPI_0        35
+#define                PD_SPI_1        36
+#define                PD_I2C_0        37
+#define                PD_I2C_1        38
+#define                PD_SD_0         39
+#define                PD_SD_1         40
+#define                PD_DP           41
+#define                PD_GDMA         42
+#define                PD_ADMA         43
+#define                PD_NAND         44
+#define                PD_QSPI         45
+#define                PD_GPIO         46
+#define                PD_CAN_0        47
+#define                PD_CAN_1        48
+#define                PD_GPU          58
+#define                PD_PCIE         59
+
+#endif