arm: dra7: add DESHDCP clock

Add a new Linux clock for DRA7 based SoCs to control DESHDCP clock.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Acked-by: Tero Kristo <t-kristo@ti.com>
diff --git a/arch/arm/boot/dts/dra7.dtsi b/arch/arm/boot/dts/dra7.dtsi
index f03a091..387c76c 100644
--- a/arch/arm/boot/dts/dra7.dtsi
+++ b/arch/arm/boot/dts/dra7.dtsi
@@ -131,6 +131,11 @@
 							regulator-max-microvolt = <3000000>;
 						};
 					};
+
+					scm_conf_clocks: clocks {
+						#address-cells = <1>;
+						#size-cells = <0>;
+					};
 				};
 
 				dra7_pmx_core: pinmux@1400 {
diff --git a/arch/arm/boot/dts/dra7xx-clocks.dtsi b/arch/arm/boot/dts/dra7xx-clocks.dtsi
index 3b933f7..470f39c 100644
--- a/arch/arm/boot/dts/dra7xx-clocks.dtsi
+++ b/arch/arm/boot/dts/dra7xx-clocks.dtsi
@@ -2136,3 +2136,13 @@
 		clocks = <&dpll_usb_ck>;
 	};
 };
+
+&scm_conf_clocks {
+	dss_deshdcp_clk: dss_deshdcp_clk {
+		#clock-cells = <0>;
+		compatible = "ti,gate-clock";
+		clocks = <&l3_iclk_div>;
+		ti,bit-shift = <0>;
+		reg = <0x558>;
+	};
+};
diff --git a/arch/arm/mach-omap2/omap_hwmod_7xx_data.c b/arch/arm/mach-omap2/omap_hwmod_7xx_data.c
index 0e64c2f..817dbd8 100644
--- a/arch/arm/mach-omap2/omap_hwmod_7xx_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_7xx_data.c
@@ -438,6 +438,7 @@
 	{ .role = "video2_clk", .clk = "dss_video2_clk" },
 	{ .role = "video1_clk", .clk = "dss_video1_clk" },
 	{ .role = "hdmi_clk", .clk = "dss_hdmi_clk" },
+	{ .role = "hdcp_clk", .clk = "dss_deshdcp_clk" },
 };
 
 static struct omap_hwmod dra7xx_dss_hwmod = {