ARM: dts: Configure interconnect target module for omap4 hdmi

We can now probe devices with device tree only configuration using
ti-sysc interconnect target module driver. Let's configure the
module and drop "ti,hwmods" peroperty as this module is a child node
of dispc and has no dependencies to to legacy platform data.

Note that we must disable smart idle modes for HDMI audio like we've
done with the legacy platform data. And HDMI needs both hdmi clock
and dss clock to operate.

Cc: Jyri Sarha <jsarha@ti.com>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Sebastian Reichel <sre@kernel.org>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/boot/dts/omap4.dtsi

@@ -589,16 +589,34 @@ dsi2: encoder@0 {
 					};
 				};
 
-				hdmi: encoder@6000 {
+				target-module@6000 {
+					compatible = "ti,sysc-omap4", "ti,sysc";
+					reg = <0x6000 0x4>,
+					      <0x6010 0x4>;
+					reg-names = "rev", "sysc";
+					/*
+					 * Has SYSC_IDLE_SMART and SYSC_IDLE_SMART_WKUP
+					 * but HDMI audio will fail with them.
+					 */
+					ti,sysc-sidle = <SYSC_IDLE_FORCE>,
+							<SYSC_IDLE_NO>;
+					ti,sysc-mask = <(SYSC_OMAP4_SOFTRESET)>;
+					clocks = <&l3_dss_clkctrl OMAP4_DSS_CORE_CLKCTRL 9>,
+						 <&l3_dss_clkctrl OMAP4_DSS_CORE_CLKCTRL 8>;
+					clock-names = "fck", "dss_clk";
+					#address-cells = <1>;
+					#size-cells = <1>;
+					ranges = <0 0x6000 0x2000>;
+
+					hdmi: encoder@0 {
 					compatible = "ti,omap4-hdmi";
-					reg = <0x6000 0x200>,
-					      <0x6200 0x100>,
-					      <0x6300 0x100>,
-					      <0x6400 0x1000>;
+						reg = <0 0x200>,
+						      <0x200 0x100>,
+						      <0x300 0x100>,
+						      <0x400 0x1000>;
 						reg-names = "wp", "pll", "phy", "core";
 						interrupts = <GIC_SPI 101 IRQ_TYPE_LEVEL_HIGH>;
 						status = "disabled";
-					ti,hwmods = "dss_hdmi";
 						clocks = <&l3_dss_clkctrl OMAP4_DSS_CORE_CLKCTRL 9>,
 						         <&l3_dss_clkctrl OMAP4_DSS_CORE_CLKCTRL 10>;
 						clock-names = "fck", "sys_clk";
@@ -608,6 +626,7 @@ hdmi: encoder@6000 {
 				};
 			};
 		};
+	};
 };
 
 #include "omap4-l4.dtsi"