dt-bindings: host1x: Document OPP and power domain properties

Document new DVFS OPP table and power domain properties of the Host1x bus
and devices sitting on the bus.

Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>

diff --git a/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-host1x.txt b/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-host1x.txt
index 8a6d3e1..62861a8 100644 (file)
--- a/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-host1x.txt
+++ b/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-host1x.txt
@@ -20,6 +20,18 @@ Required properties:
 - reset-names: Must include the following entries:
   - host1x
 
+Optional properties:
+- operating-points-v2: See ../bindings/opp/opp.txt for details.
+  - power-domains: Phandle to HEG or core power domain.
+
+For each opp entry in 'operating-points-v2' table of host1x and its modules:
+- opp-supported-hw: One bitfield indicating:
+       On Tegra20: SoC process ID mask
+       On Tegra30+: SoC speedo ID mask
+
+       A bitwise AND is performed against the value and if any bit
+       matches, the OPP gets enabled.
+
 Each host1x client module having to perform DMA through the Memory Controller
 should have the interconnect endpoints set to the Memory Client and External
 Memory respectively.
@@ -45,6 +57,8 @@ of the following host1x client modules:
   - interconnect-names: Must include name of the interconnect path for each
     interconnect entry. Consult TRM documentation for information about
     available memory clients, see MEMORY CONTROLLER section.
+  - operating-points-v2: See ../bindings/opp/opp.txt for details.
+  - power-domains: Phandle to MPE power domain.
 
 - vi: video input
 
@@ -128,6 +142,8 @@ of the following host1x client modules:
   - interconnect-names: Must include name of the interconnect path for each
     interconnect entry. Consult TRM documentation for information about
     available memory clients, see MEMORY CONTROLLER section.
+  - operating-points-v2: See ../bindings/opp/opp.txt for details.
+  - power-domains: Phandle to VENC power domain.
 
 - epp: encoder pre-processor
 
@@ -147,6 +163,8 @@ of the following host1x client modules:
   - interconnect-names: Must include name of the interconnect path for each
     interconnect entry. Consult TRM documentation for information about
     available memory clients, see MEMORY CONTROLLER section.
+  - operating-points-v2: See ../bindings/opp/opp.txt for details.
+  - power-domains: Phandle to HEG or core power domain.
 
 - isp: image signal processor
 
@@ -166,6 +184,7 @@ of the following host1x client modules:
   - interconnect-names: Must include name of the interconnect path for each
     interconnect entry. Consult TRM documentation for information about
     available memory clients, see MEMORY CONTROLLER section.
+  - power-domains: Phandle to VENC or core power domain.
 
 - gr2d: 2D graphics engine
 
@@ -185,6 +204,8 @@ of the following host1x client modules:
   - interconnect-names: Must include name of the interconnect path for each
     interconnect entry. Consult TRM documentation for information about
     available memory clients, see MEMORY CONTROLLER section.
+  - operating-points-v2: See ../bindings/opp/opp.txt for details.
+  - power-domains: Phandle to HEG or core power domain.
 
 - gr3d: 3D graphics engine
 
@@ -209,6 +230,8 @@ of the following host1x client modules:
   - interconnect-names: Must include name of the interconnect path for each
     interconnect entry. Consult TRM documentation for information about
     available memory clients, see MEMORY CONTROLLER section.
+  - operating-points-v2: See ../bindings/opp/opp.txt for details.
+  - power-domains: Phandles to 3D or core power domain.
 
 - dc: display controller
 
@@ -241,6 +264,8 @@ of the following host1x client modules:
   - interconnect-names: Must include name of the interconnect path for each
     interconnect entry. Consult TRM documentation for information about
     available memory clients, see MEMORY CONTROLLER section.
+  - operating-points-v2: See ../bindings/opp/opp.txt for details.
+  - power-domains: Phandle to core power domain.
 
 - hdmi: High Definition Multimedia Interface
 
@@ -267,6 +292,7 @@ of the following host1x client modules:
   - nvidia,hpd-gpio: specifies a GPIO used for hotplug detection
   - nvidia,edid: supplies a binary EDID blob
   - nvidia,panel: phandle of a display panel
+  - operating-points-v2: See ../bindings/opp/opp.txt for details.
 
 - tvo: TV encoder output
 
@@ -277,6 +303,10 @@ of the following host1x client modules:
   - clocks: Must contain one entry, for the module clock.
     See ../clocks/clock-bindings.txt for details.
 
+  Optional properties:
+  - operating-points-v2: See ../bindings/opp/opp.txt for details.
+  - power-domains: Phandle to core power domain.
+
 - dsi: display serial interface
 
   Required properties:
@@ -305,6 +335,7 @@ of the following host1x client modules:
   - nvidia,panel: phandle of a display panel
   - nvidia,ganged-mode: contains a phandle to a second DSI controller to gang
     up with in order to support up to 8 data lanes
+  - operating-points-v2: See ../bindings/opp/opp.txt for details.
 
 - sor: serial output resource
 
@@ -408,6 +439,8 @@ Example:
                clocks = <&tegra_car TEGRA20_CLK_HOST1X>;
                resets = <&tegra_car 28>;
                reset-names = "host1x";
+               operating-points-v2 = <&dvfs_opp_table>;
+               power-domains = <&domain>;
 
                #address-cells = <1>;
                #size-cells = <1>;
@@ -421,6 +454,8 @@ Example:
                        clocks = <&tegra_car TEGRA20_CLK_MPE>;
                        resets = <&tegra_car 60>;
                        reset-names = "mpe";
+                       operating-points-v2 = <&dvfs_opp_table>;
+                       power-domains = <&domain>;
                };
 
                vi@54080000 {
@@ -429,6 +464,7 @@ Example:
                        interrupts = <GIC_SPI 69 IRQ_TYPE_LEVEL_HIGH>;
                        assigned-clocks = <&tegra_car TEGRA210_CLK_VI>;
                        assigned-clock-parents = <&tegra_car TEGRA210_CLK_PLL_C4_OUT0>;
+                       operating-points-v2 = <&dvfs_opp_table>;
 
                        clocks = <&tegra_car TEGRA210_CLK_VI>;
                        power-domains = <&pd_venc>;
@@ -510,6 +546,8 @@ Example:
                        clocks = <&tegra_car TEGRA20_CLK_EPP>;
                        resets = <&tegra_car 19>;
                        reset-names = "epp";
+                       operating-points-v2 = <&dvfs_opp_table>;
+                       power-domains = <&domain>;
                };
 
                isp {
@@ -528,6 +566,8 @@ Example:
                        clocks = <&tegra_car TEGRA20_CLK_GR2D>;
                        resets = <&tegra_car 21>;
                        reset-names = "2d";
+                       operating-points-v2 = <&dvfs_opp_table>;
+                       power-domains = <&domain>;
                };
 
                gr3d {
@@ -536,6 +576,8 @@ Example:
                        clocks = <&tegra_car TEGRA20_CLK_GR3D>;
                        resets = <&tegra_car 24>;
                        reset-names = "3d";
+                       operating-points-v2 = <&dvfs_opp_table>;
+                       power-domains = <&domain>;
                };
 
                dc@54200000 {
@@ -547,6 +589,8 @@ Example:
                        clock-names = "dc", "parent";
                        resets = <&tegra_car 27>;
                        reset-names = "dc";
+                       operating-points-v2 = <&dvfs_opp_table>;
+                       power-domains = <&domain>;
 
                        interconnects = <&mc TEGRA20_MC_DISPLAY0A &emc>,
                                        <&mc TEGRA20_MC_DISPLAY0B &emc>,
@@ -571,6 +615,8 @@ Example:
                        clock-names = "dc", "parent";
                        resets = <&tegra_car 26>;
                        reset-names = "dc";
+                       operating-points-v2 = <&dvfs_opp_table>;
+                       power-domains = <&domain>;
 
                        interconnects = <&mc TEGRA20_MC_DISPLAY0AB &emc>,
                                        <&mc TEGRA20_MC_DISPLAY0BB &emc>,
@@ -596,6 +642,7 @@ Example:
                        resets = <&tegra_car 51>;
                        reset-names = "hdmi";
                        status = "disabled";
+                       operating-points-v2 = <&dvfs_opp_table>;
                };
 
                tvo {
@@ -604,6 +651,7 @@ Example:
                        interrupts = <0 76 0x04>;
                        clocks = <&tegra_car TEGRA20_CLK_TVO>;
                        status = "disabled";
+                       operating-points-v2 = <&dvfs_opp_table>;
                };
 
                dsi {
@@ -615,6 +663,7 @@ Example:
                        resets = <&tegra_car 48>;
                        reset-names = "dsi";
                        status = "disabled";
+                       operating-points-v2 = <&dvfs_opp_table>;
                };
        };