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Diffstat (limited to 'Documentation/devicetree/bindings/pinctrl/rockchip,pinctrl.txt')
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diff --git a/Documentation/devicetree/bindings/pinctrl/rockchip,pinctrl.txt b/Documentation/devicetree/bindings/pinctrl/rockchip,pinctrl.txt deleted file mode 100644 index 84c4111293bd..000000000000 --- a/Documentation/devicetree/bindings/pinctrl/rockchip,pinctrl.txt +++ /dev/null @@ -1,114 +0,0 @@ -* Rockchip Pinmux Controller - -The Rockchip Pinmux Controller, enables the IC -to share one PAD to several functional blocks. The sharing is done by -multiplexing the PAD input/output signals. For each PAD there are several -muxing options with option 0 being the use as a GPIO. - -Please refer to pinctrl-bindings.txt in this directory for details of the -common pinctrl bindings used by client devices, including the meaning of the -phrase "pin configuration node". - -The Rockchip pin configuration node is a node of a group of pins which can be -used for a specific device or function. This node represents both mux and -config of the pins in that group. The 'pins' selects the function mode(also -named pin mode) this pin can work on and the 'config' configures various pad -settings such as pull-up, etc. - -The pins are grouped into up to 5 individual pin banks which need to be -defined as gpio sub-nodes of the pinmux controller. - -Required properties for iomux controller: - - compatible: should be - "rockchip,px30-pinctrl": for Rockchip PX30 - "rockchip,rv1108-pinctrl": for Rockchip RV1108 - "rockchip,rk2928-pinctrl": for Rockchip RK2928 - "rockchip,rk3066a-pinctrl": for Rockchip RK3066a - "rockchip,rk3066b-pinctrl": for Rockchip RK3066b - "rockchip,rk3128-pinctrl": for Rockchip RK3128 - "rockchip,rk3188-pinctrl": for Rockchip RK3188 - "rockchip,rk3228-pinctrl": for Rockchip RK3228 - "rockchip,rk3288-pinctrl": for Rockchip RK3288 - "rockchip,rk3308-pinctrl": for Rockchip RK3308 - "rockchip,rk3328-pinctrl": for Rockchip RK3328 - "rockchip,rk3368-pinctrl": for Rockchip RK3368 - "rockchip,rk3399-pinctrl": for Rockchip RK3399 - "rockchip,rk3568-pinctrl": for Rockchip RK3568 - - - 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. On the rk3368 this should - point to the PMUGRF syscon. - -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. - 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: -See rockchip,gpio-bank.yaml - -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>. - The MUX 0 means gpio and MUX 1 to N mean the specific device function. - The phandle of a node containing the generic pinconfig options - to use, as described in pinctrl-bindings.txt in this directory. - -Examples: - -#include <dt-bindings/pinctrl/rockchip.h> - -... - -pinctrl@20008000 { - compatible = "rockchip,rk3066a-pinctrl"; - rockchip,grf = <&grf>; - - #address-cells = <1>; - #size-cells = <1>; - ranges; - - gpio0: gpio0@20034000 { - compatible = "rockchip,gpio-bank"; - reg = <0x20034000 0x100>; - interrupts = <GIC_SPI 54 IRQ_TYPE_LEVEL_HIGH>; - clocks = <&clk_gates8 9>; - - gpio-controller; - #gpio-cells = <2>; - - interrupt-controller; - #interrupt-cells = <2>; - }; - - ... - - pcfg_pull_default: pcfg_pull_default { - bias-pull-pin-default - }; - - uart2 { - uart2_xfer: uart2-xfer { - rockchip,pins = <1 RK_PB0 1 &pcfg_pull_default>, - <1 RK_PB1 1 &pcfg_pull_default>; - }; - }; -}; - -uart2: serial@20064000 { - compatible = "snps,dw-apb-uart"; - reg = <0x20064000 0x400>; - interrupts = <GIC_SPI 36 IRQ_TYPE_LEVEL_HIGH>; - reg-shift = <2>; - reg-io-width = <1>; - clocks = <&mux_uart2>; - - pinctrl-names = "default"; - pinctrl-0 = <&uart2_xfer>; -}; |