From 68bab8662f49b9e158f1d32f11becd4e48c04079 Mon Sep 17 00:00:00 2001 From: Peter Ujfalusi Date: Thu, 3 Apr 2014 13:54:41 +0300 Subject: mfd: twl6040: Optional clk32k clock handling In certain boards the source for the clk32k clock can be gated. In these boards the clk32k clock can be provided to the driver and it is going to be enabled/disabled when it is needed. If the clk32k clock is not provided the driver will assume that it is always running. Signed-off-by: Peter Ujfalusi Signed-off-by: Lee Jones --- Documentation/devicetree/bindings/mfd/twl6040.txt | 2 ++ 1 file changed, 2 insertions(+) (limited to 'Documentation/devicetree/bindings/mfd') diff --git a/Documentation/devicetree/bindings/mfd/twl6040.txt b/Documentation/devicetree/bindings/mfd/twl6040.txt index 0f5dd709d752..a41157b5d930 100644 --- a/Documentation/devicetree/bindings/mfd/twl6040.txt +++ b/Documentation/devicetree/bindings/mfd/twl6040.txt @@ -19,6 +19,8 @@ Required properties: Optional properties, nodes: - enable-active-high: To power on the twl6040 during boot. +- clocks: phandle to the clk32k clock provider +- clock-names: Must be "clk32k" Vibra functionality Required properties: -- cgit v1.2.1 From e4e3d1b03695c458a954954c8efae745517dd44d Mon Sep 17 00:00:00 2001 From: Boris BREZILLON Date: Fri, 9 May 2014 13:11:48 +0200 Subject: mfd: sun6i-prcm: Document DT bindings Document DT bindings of the PRCM (Power/Reset/Clock Management) unit. Signed-off-by: Boris BREZILLON Signed-off-by: Lee Jones --- .../devicetree/bindings/mfd/sun6i-prcm.txt | 59 ++++++++++++++++++++++ 1 file changed, 59 insertions(+) create mode 100644 Documentation/devicetree/bindings/mfd/sun6i-prcm.txt (limited to 'Documentation/devicetree/bindings/mfd') diff --git a/Documentation/devicetree/bindings/mfd/sun6i-prcm.txt b/Documentation/devicetree/bindings/mfd/sun6i-prcm.txt new file mode 100644 index 000000000000..1f5a31fef907 --- /dev/null +++ b/Documentation/devicetree/bindings/mfd/sun6i-prcm.txt @@ -0,0 +1,59 @@ +* Allwinner PRCM (Power/Reset/Clock Management) Multi-Functional Device + +PRCM is an MFD device exposing several Power Management related devices +(like clks and reset controllers). + +Required properties: + - compatible: "allwinner,sun6i-a31-prcm" + - reg: The PRCM registers range + +The prcm node may contain several subdevices definitions: + - see Documentation/devicetree/clk/sunxi.txt for clock devices + - see Documentation/devicetree/reset/allwinner,sunxi-clock-reset.txt for reset + controller devices + + +Example: + + prcm: prcm@01f01400 { + compatible = "allwinner,sun6i-a31-prcm"; + reg = <0x01f01400 0x200>; + + /* Put subdevices here */ + ar100: ar100_clk { + compatible = "allwinner,sun6i-a31-ar100-clk"; + #clock-cells = <0>; + clocks = <&osc32k>, <&osc24M>, <&pll6>, <&pll6>; + }; + + ahb0: ahb0_clk { + compatible = "fixed-factor-clock"; + #clock-cells = <0>; + clock-div = <1>; + clock-mult = <1>; + clocks = <&ar100_div>; + clock-output-names = "ahb0"; + }; + + apb0: apb0_clk { + compatible = "allwinner,sun6i-a31-apb0-clk"; + #clock-cells = <0>; + clocks = <&ahb0>; + clock-output-names = "apb0"; + }; + + apb0_gates: apb0_gates_clk { + compatible = "allwinner,sun6i-a31-apb0-gates-clk"; + #clock-cells = <1>; + clocks = <&apb0>; + clock-output-names = "apb0_pio", "apb0_ir", + "apb0_timer01", "apb0_p2wi", + "apb0_uart", "apb0_1wire", + "apb0_i2c"; + }; + + apb0_rst: apb0_rst { + compatible = "allwinner,sun6i-a31-clock-reset"; + #reset-cells = <1>; + }; + }; -- cgit v1.2.1 From 60fd011bfaaae91f0f795621ba80d6f5d46ca966 Mon Sep 17 00:00:00 2001 From: Ivan Khoronzhuk Date: Thu, 22 May 2014 19:44:18 +0300 Subject: mfd: ti-keystone-devctrl: Add bindings for device state control The Keystone II devices have a set of registers that are used to control the status of its peripherals. This node is intended to allow access to this functionality. Reviewed-by: Arnd Bergmann Signed-off-by: Ivan Khoronzhuk Signed-off-by: Lee Jones --- .../devicetree/bindings/mfd/ti-keystone-devctrl.txt | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) create mode 100644 Documentation/devicetree/bindings/mfd/ti-keystone-devctrl.txt (limited to 'Documentation/devicetree/bindings/mfd') diff --git a/Documentation/devicetree/bindings/mfd/ti-keystone-devctrl.txt b/Documentation/devicetree/bindings/mfd/ti-keystone-devctrl.txt new file mode 100644 index 000000000000..20963c76b4bc --- /dev/null +++ b/Documentation/devicetree/bindings/mfd/ti-keystone-devctrl.txt @@ -0,0 +1,19 @@ +* Device tree bindings for Texas Instruments keystone device state control + +The Keystone II devices have a set of registers that are used to control +the status of its peripherals. This node is intended to allow access to +this functionality. + +Required properties: + +- compatible: "ti,keystone-devctrl", "syscon" + +- reg: contains offset/length value for device state control + registers space. + +Example: + +devctrl: device-state-control@0x02620000 { + compatible = "ti,keystone-devctrl", "syscon"; + reg = <0x02620000 0x1000>; +}; -- cgit v1.2.1