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