Memory Controller has a memory client "hot reset" functionality, which
resets the DMA interface of a memory client, so MC is a reset controller.
Signed-off-by: Dmitry Osipenko <digetx@xxxxxxxxx>
Reviewed-by: Rob Herring <robh@xxxxxxxxxx>
---
.../devicetree/bindings/arm/tegra/nvidia,tegra20-mc.txt | 12 +++++++++++-
1 file changed, 11 insertions(+), 1 deletion(-)
diff --git a/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra20-mc.txt b/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra20-mc.txt
index f9632bacbd04..7d60a50a4fa1 100644
--- a/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra20-mc.txt
+++ b/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra20-mc.txt
@@ -6,11 +6,21 @@ Required properties:
example below. Note that the MC registers are interleaved with the
GART registers, and hence must be represented as multiple ranges.
- interrupts : Should contain MC General interrupt.
+- #reset-cells : Should be 1. This cell represents memory client module ID.
+ The assignments may be found in header file <dt-bindings/memory/tegra20-mc.h>
+ or in the TRM documentation.
Example:
- memory-controller@7000f000 {
+ mc: memory-controller@7000f000 {
compatible = "nvidia,tegra20-mc";
reg = <0x7000f000 0x024
0x7000f03c 0x3c4>;
interrupts = <0 77 0x04>;
+ #reset-cells = <1>;
+ };
+
+ video-codec@6001a000 {
+ compatible = "nvidia,tegra20-vde";
+ ...
+ resets = <&mc TEGRA20_MC_RESET_VDE>;
};
--
2.16.3
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