lkml.org 
[lkml]   [2018]   [May]   [16]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 1/2] slimbus: ngd: dt-bindings: Add slim ngd dt bindings
Date
This patch adds bindings for Qualcomm SLIMBus NGD controller found in
all new SoCs starting from B family.
SLIMBus NGD controller is a light-weight driver responsible for
communicating with SLIMBus slaves directly over the bus using messaging
interface and communicating with master component residing on ADSP for
bandwidth and data-channel management

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
---
.../bindings/slimbus/slim-ngd-qcom-ctrl.txt | 70 ++++++++++++++++++++++
1 file changed, 70 insertions(+)
create mode 100644 Documentation/devicetree/bindings/slimbus/slim-ngd-qcom-ctrl.txt

diff --git a/Documentation/devicetree/bindings/slimbus/slim-ngd-qcom-ctrl.txt b/Documentation/devicetree/bindings/slimbus/slim-ngd-qcom-ctrl.txt
new file mode 100644
index 000000000000..c948fb098819
--- /dev/null
+++ b/Documentation/devicetree/bindings/slimbus/slim-ngd-qcom-ctrl.txt
@@ -0,0 +1,70 @@
+Qualcomm SLIMBus Non Generic Device (NGD) Controller binding
+
+SLIMBus NGD controller is a light-weight driver responsible for communicating
+with SLIMBus slaves directly over the bus using messaging interface and
+communicating with master component residing on ADSP for bandwidth and
+data-channel management
+
+Please refer to slimbus/bus.txt for details of the common SLIMBus bindings.
+
+- compatible:
+ Usage: required
+ Value type: <stringlist>
+ Definition: must be "qcom,slim-ngd"
+
+- reg:
+ Usage: required
+ Value type: <prop-encoded-array>
+ Definition: must specify the base address and size of the controller
+ register blocks.
+
+- reg-names:
+ Usage: required
+ Value type: <stringlist>
+ Definition: must be "ctrl"
+
+- qcom,ngd-id
+ Usage: required
+ Value type: <u32>
+ Definition: ngd instance id in the controller
+- dmas
+ Usage: required
+ Value type: <array of phandles>
+ Definition: List of rx and tx dma channels
+
+- dma-names
+ Usage: required
+ Value type: <stringlist>
+ Definition: must be "rx" and "tx".
+
+- interrupts:
+ Usage: required
+ Value type: <prop-encoded-array>
+ Definition: must list controller IRQ.
+
+#address-cells
+ Usage: required
+ Refer to slimbus/bus.txt for details of the common SLIMBus bindings.
+
+#size-cells
+ Usage: required
+ Refer to slimbus/bus.txt for details of the common SLIMBus bindings.
+
+= EXAMPLE
+
+slim@91c0000 {
+ compatible = "qcom,slim-ngd";
+ reg = <0x91c0000 0x2C000>;
+ reg-names = "ctrl";
+ interrupts = <0 163 0>;
+ qcom,ngd-id = <1>;
+ dmas = <&slimbam 3>, <&slimbam 4>;
+ dma-names = "rx", "tx";
+
+ #address-cells = <1>;
+ #size-cells = <1>;
+ codec@1 {
+ compatible = "slim217,1a0";
+ reg = <1 0>;
+ };
+};
--
2.16.2
\
 
 \ /
  Last update: 2018-05-16 18:55    [W:0.160 / U:2.720 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site