Document "clocks" sub-node which describes Tegra SoC clocks that require
a higher voltage of the core power domain in order to operate properly on
a higher rates.
Signed-off-by: Dmitry Osipenko <digetx@xxxxxxxxx>
---
.../bindings/clock/nvidia,tegra20-car.txt | 26 +++++++++++++++++++
.../bindings/clock/nvidia,tegra30-car.txt | 26 +++++++++++++++++++
2 files changed, 52 insertions(+)
diff --git a/Documentation/devicetree/bindings/clock/nvidia,tegra20-car.txt b/Documentation/devicetree/bindings/clock/nvidia,tegra20-car.txt
index 6c5901b503d0..353354477785 100644
--- a/Documentation/devicetree/bindings/clock/nvidia,tegra20-car.txt
+++ b/Documentation/devicetree/bindings/clock/nvidia,tegra20-car.txt
@@ -19,6 +19,16 @@ Required properties :
In clock consumers, this cell represents the bit number in the CAR's
array of CLK_RST_CONTROLLER_RST_DEVICES_* registers.
+Optional child sub-node "clocks" should contain nodes matching the clocks
+on the Tegra SoC. Refer to Tegra TRM for mode details on the clock nodes.
+
+Required properties :
+- compatible : Should be "nvidia,tegra20-clock".
+- operating-points-v2: See ../bindings/opp/opp.txt for details.
+- clocks : Should contain clock which corresponds to the node.
+- power-domains: Phandle to a power domain node as described by generic
+ PM domain bindings.
+
Example SoC include file:
/ {
@@ -27,6 +37,22 @@ Example SoC include file:
reg = <0x60006000 0x1000>;
#clock-cells = <1>;
#reset-cells = <1>;
+
+ clocks {
+ hdmi {
+ compatible = "nvidia,tegra20-clock";
+ operating-points-v2 = <&hdmi_opp_table>;
+ clocks = <&tegra_car TEGRA20_CLK_HDMI>;
+ power-domains = <&domain>;
+ };
+
+ pll_m {
+ compatible = "nvidia,tegra20-clock";
+ operating-points-v2 = <&pll_m_opp_table>;
+ clocks = <&tegra_car TEGRA20_CLK_PLL_M>;
+ power-domains = <&domain>;
+ };
+ };
};
usb@c5004000 {
diff --git a/Documentation/devicetree/bindings/clock/nvidia,tegra30-car.txt b/Documentation/devicetree/bindings/clock/nvidia,tegra30-car.txt
index 63618cde12df..bc7bbdaa9d3f 100644
--- a/Documentation/devicetree/bindings/clock/nvidia,tegra30-car.txt
+++ b/Documentation/devicetree/bindings/clock/nvidia,tegra30-car.txt
@@ -19,6 +19,16 @@ Required properties :
In clock consumers, this cell represents the bit number in the CAR's
array of CLK_RST_CONTROLLER_RST_DEVICES_* registers.
+Optional child sub-node "clocks" should contain nodes matching the clocks
+on the Tegra SoC. Refer to Tegra TRM for mode details on the clock nodes.
+
+Required properties :
+- compatible : Should be "nvidia,tegra30-clock".
+- operating-points-v2: See ../bindings/opp/opp.txt for details.
+- clocks : Should contain clock which corresponds to the node.
+- power-domains: Phandle to a power domain node as described by generic
+ PM domain bindings.
+
Example SoC include file:
/ {
@@ -31,6 +41,22 @@ Example SoC include file:
usb@c5004000 {
clocks = <&tegra_car TEGRA30_CLK_USB2>;
+
+ clocks {
+ hdmi {
+ compatible = "nvidia,tegra30-clock";
+ operating-points-v2 = <&hdmi_opp_table>;
+ clocks = <&tegra_car TEGRA30_CLK_HDMI>;
+ power-domains = <&domain>;
+ };
+
+ pll_m {
+ compatible = "nvidia,tegra30-clock";
+ operating-points-v2 = <&pll_m_opp_table>;
+ clocks = <&tegra_car TEGRA30_CLK_PLL_M>;
+ power-domains = <&domain>;
+ };
+ };
};
};
--
2.29.2
