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dt-bindings: adapt rockchip-pinctrl doc to changed bindings

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Introduce the syscons for grf and pmu and deprecate the previous register
areas.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Tested-by: Max Schwarz <max.schwarz@online.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Heiko Stübner 2014-05-05 14:00:11 +02:00 committed by Linus Walleij
parent 1e747e59cc
commit c51426efd3
1 changed files with 20 additions and 8 deletions
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28
Documentation/devicetree/bindings/pinctrl/rockchip,pinctrl.txt
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@ -21,15 +21,23 @@ defined as gpio sub-nodes of the pinmux controller.
Required properties for iomux controller:
- compatible: one of "rockchip,rk2928-pinctrl", "rockchip,rk3066a-pinctrl"
"rockchip,rk3066b-pinctrl", "rockchip,rk3188-pinctrl"
- rockchip,grf: phandle referencing a syscon providing the
"general register files"
Optional properties for iomux controller:
- rockchip,pmu: phandle referencing a syscon providing the pmu registers
as some SoCs carry parts of the iomux controller registers there.
Required for at least rk3188 and rk3288.
Deprecated properties for iomux controller:
- reg: first element is the general register space of the iomux controller
It should be large enough to contain also separate pull registers.
Deprecated:
second element is the separate pull register space of the rk3188
second element is the separate pull register space of the rk3188.
Use rockchip,grf and rockchip,pmu described above instead.
Required properties for gpio sub nodes:
- compatible: "rockchip,gpio-bank", "rockchip,rk3188-gpio-bank0"
- reg: register of the gpio bank (different than the iomux registerset)
second element: separate pull register for rk3188 bank0
- interrupts: base interrupt of the gpio bank in the interrupt controller
- clocks: clock that drives this bank
- gpio-controller: identifies the node as a gpio controller and pin bank.
@ -41,6 +49,10 @@ Required properties for gpio sub nodes:
cells should use the standard two-cell scheme described in
bindings/interrupt-controller/interrupts.txt
Deprecated properties for gpio sub nodes:
- reg: second element: separate pull register for rk3188 bank0, use
rockchip,pmu described above instead
Required properties for pin configuration node:
- rockchip,pins: 3 integers array, represents a group of pins mux and config
setting. The format is rockchip,pins = <PIN_BANK PIN_BANK_IDX MUX &phandle>.
@ -56,7 +68,8 @@ Examples:
pinctrl@20008000 {
compatible = "rockchip,rk3066a-pinctrl";
reg = <0x20008000 0x150>;
rockchip,grf = <&grf>;
#address-cells = <1>;
#size-cells = <1>;
ranges;
@ -105,16 +118,15 @@ Example for rk3188:
pinctrl@20008000 {
compatible = "rockchip,rk3188-pinctrl";
reg = <0x20008000 0xa0>,
<0x20008164 0x1a0>;
rockchip,grf = <&grf>;
rockchip,pmu = <&pmu>;
#address-cells = <1>;
#size-cells = <1>;
ranges;
gpio0: gpio0@0x2000a000 {
compatible = "rockchip,rk3188-gpio-bank0";
reg = <0x2000a000 0x100>,
<0x20004064 0x8>;
reg = <0x2000a000 0x100>;
interrupts = <GIC_SPI 54 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&clk_gates8 9>;