Re: [PATCHv3 01/10] dt-bindings: omap: add new binding for PRM instances
From: Rob Herring <robh@kernel.org>
Date: 2019-09-02 13:39:16
Also in:
linux-arm-kernel, linux-omap
On Fri, Aug 30, 2019 at 03:18:07PM +0300, Tero Kristo wrote:
Add new binding for OMAP PRM (Power and Reset Manager) instances. Each of these will act as a power domain controller and potentially as a reset provider.
Converting this to schema would be nice.
Signed-off-by: Tero Kristo <redacted> --- .../devicetree/bindings/arm/omap/prm-inst.txt | 31 +++++++++++++++++++
bindings/reset/
quoted hunk ↗ jump to hunk
1 file changed, 31 insertions(+) create mode 100644 Documentation/devicetree/bindings/arm/omap/prm-inst.txtdiff --git a/Documentation/devicetree/bindings/arm/omap/prm-inst.txt b/Documentation/devicetree/bindings/arm/omap/prm-inst.txt new file mode 100644 index 000000000000..7c7527c37734 --- /dev/null +++ b/Documentation/devicetree/bindings/arm/omap/prm-inst.txt@@ -0,0 +1,31 @@ +OMAP PRM instance bindings + +Power and Reset Manager is an IP block on OMAP family of devices which +handle the power domains and their current state, and provide reset +handling for the domains and/or separate IP blocks under the power domain +hierarchy. + +Required properties: +- compatible: Must be one of: + "ti,am3-prm-inst" + "ti,am4-prm-inst" + "ti,omap4-prm-inst" + "ti,omap5-prm-inst" + "ti,dra7-prm-inst"
'-inst' seems a bit redundant.
+- reg: Contains PRM instance register address range
+ (base address and length)
+
+Optional properties:
+- #reset-cells: Should be 1 if the PRM instance in question supports resets.
+- clocks: Associated clocks for the reset signals if any. Certain reset
+ signals can't be toggled properly without functional clock
+ being active for them.
+
+Example:
+
+prm_dsp2: prm@1b00 {reset-controller@...
+ compatible = "ti,dra7-prm-inst"; + reg = <0x1b00 0x40>; + #reset-cells = <1>; + clocks = <&dsp2_clkctrl DRA7_DSP2_MMU0_DSP2_CLKCTRL 0>; +}; -- 2.17.1 -- Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki. Y-tunnus/Business ID: 0615521-4. Kotipaikka/Domicile: Helsinki