| Message ID | 20171115141043.29202-11-srinivas.kandagatla@linaro.org |
|---|---|
| State | Superseded |
| Headers | show |
| Series | Introduce framework for SLIMbus device driver | expand |
On Wed, Nov 15, 2017 at 02:10:40PM +0000, srinivas.kandagatla@linaro.org wrote: > From: Sagar Dharia <sdharia@codeaurora.org> > > This patch add device tree bindings for Qualcomm slimbus controller. > > Signed-off-by: Sagar Dharia <sdharia@codeaurora.org> > Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> > --- > .../devicetree/bindings/slimbus/slim-qcom-ctrl.txt | 43 ++++++++++++++++++++++ > 1 file changed, 43 insertions(+) > create mode 100644 Documentation/devicetree/bindings/slimbus/slim-qcom-ctrl.txt > > diff --git a/Documentation/devicetree/bindings/slimbus/slim-qcom-ctrl.txt b/Documentation/devicetree/bindings/slimbus/slim-qcom-ctrl.txt > new file mode 100644 > index 000000000000..e4d28910b2e0 > --- /dev/null > +++ b/Documentation/devicetree/bindings/slimbus/slim-qcom-ctrl.txt > @@ -0,0 +1,43 @@ > +Qualcomm SLIMBUS controller > +This controller is used if applications processor driver controls slimbus > +master component. > + > +Required properties: > + > + - #address-cells - refer to Documentation/devicetree/bindings/slimbus/bus.txt > + - #size-cells - refer to Documentation/devicetree/bindings/slimbus/bus.txt > + > + - reg : Offset and length of the register region(s) for the device > + - reg-names : Register region name(s) referenced in reg above > + Required register resource entries are: > + "ctrl": Physical address of controller register blocks > + - compatible : should be "qcom,<SOC-NAME>-slim" for SOC specific compatible > + followed by "qcom,slim" for fallback. > + - interrupts : Interrupt number used by this controller > + - clocks : Interface and core clocks used by this slimbus controller > + - clock-names : Required clock-name entries are: > + "iface_clk" : Interface clock for this controller > + "core_clk" : Interrupt for controller core's BAM > + > + > +Optional property: > + - reg entry for slew rate : If slew rate control register is provided, this > + entry should be used. > + - reg-name for slew rate: "slew" reg-names I'd prefer it be explicit as to which compatibles do or don't have this register. > + > +Example: > + > + slim@28080000 { > + compatible = "qcom,apq8064-slim", "qcom,slim"; > + reg = <0x28080000 0x2000>, error ^ > + interrupts = <0 33 0>; > + clocks = <&lcc SLIMBUS_SRC>, <&lcc AUDIO_SLIMBUS_CLK>; > + clock-names = "iface", "core"; > + #address-cells = <2>; > + #size-cell = <0>; > + > + codec: wcd9310@1,0{ Use generic node names: wcd9310: audio-codec@1,0 > + compatible = "slim217,60"; > + reg = <1 0>; > + }; > + }; > -- > 2.15.0 > -- To unsubscribe from this list: send the line "unsubscribe linux-arm-msm" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/Documentation/devicetree/bindings/slimbus/slim-qcom-ctrl.txt b/Documentation/devicetree/bindings/slimbus/slim-qcom-ctrl.txt new file mode 100644 index 000000000000..e4d28910b2e0 --- /dev/null +++ b/Documentation/devicetree/bindings/slimbus/slim-qcom-ctrl.txt @@ -0,0 +1,43 @@ +Qualcomm SLIMBUS controller +This controller is used if applications processor driver controls slimbus +master component. + +Required properties: + + - #address-cells - refer to Documentation/devicetree/bindings/slimbus/bus.txt + - #size-cells - refer to Documentation/devicetree/bindings/slimbus/bus.txt + + - reg : Offset and length of the register region(s) for the device + - reg-names : Register region name(s) referenced in reg above + Required register resource entries are: + "ctrl": Physical address of controller register blocks + - compatible : should be "qcom,<SOC-NAME>-slim" for SOC specific compatible + followed by "qcom,slim" for fallback. + - interrupts : Interrupt number used by this controller + - clocks : Interface and core clocks used by this slimbus controller + - clock-names : Required clock-name entries are: + "iface_clk" : Interface clock for this controller + "core_clk" : Interrupt for controller core's BAM + + +Optional property: + - reg entry for slew rate : If slew rate control register is provided, this + entry should be used. + - reg-name for slew rate: "slew" + +Example: + + slim@28080000 { + compatible = "qcom,apq8064-slim", "qcom,slim"; + reg = <0x28080000 0x2000>, + interrupts = <0 33 0>; + clocks = <&lcc SLIMBUS_SRC>, <&lcc AUDIO_SLIMBUS_CLK>; + clock-names = "iface", "core"; + #address-cells = <2>; + #size-cell = <0>; + + codec: wcd9310@1,0{ + compatible = "slim217,60"; + reg = <1 0>; + }; + };