arm64: dts: qcom: msm8998: Configure the MultiMedia Clock Controller (MMCC)

The MSM8998 MMCC is supported and has a driver: configure it as a
preparation for a later enablement of multimedia nodes (mdp, venus
and others).
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@somainline.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20210901183123.1087392-1-angelogioacchino.delregno@somainline.org

arch/arm64/boot/dts/qcom/msm8998.dtsi

@@ -4,6 +4,7 @@
 #include <dt-bindings/interrupt-controller/arm-gic.h>
 #include <dt-bindings/clock/qcom,gcc-msm8998.h>
 #include <dt-bindings/clock/qcom,gpucc-msm8998.h>
+#include <dt-bindings/clock/qcom,mmcc-msm8998.h>
 #include <dt-bindings/clock/qcom,rpmcc.h>
 #include <dt-bindings/power/qcom-rpmpd.h>
 #include <dt-bindings/gpio/gpio.h>
@@ -2333,6 +2334,36 @@ blsp2_i2c6: i2c@c1ba000 {
 			#size-cells = <0>;
 		};
 
+		mmcc: clock-controller@c8c0000 {
+			compatible = "qcom,mmcc-msm8998";
+			#clock-cells = <1>;
+			#reset-cells = <1>;
+			#power-domain-cells = <1>;
+			reg = <0xc8c0000 0x40000>;
+			status = "disabled";
+
+			clock-names = "xo",
+				      "gpll0",
+				      "dsi0dsi",
+				      "dsi0byte",
+				      "dsi1dsi",
+				      "dsi1byte",
+				      "hdmipll",
+				      "dplink",
+				      "dpvco",
+				      "core_bi_pll_test_se";
+			clocks = <&rpmcc RPM_SMD_XO_CLK_SRC>,
+				 <&gcc GCC_MMSS_GPLL0_CLK>,
+				 <0>,
+				 <0>,
+				 <0>,
+				 <0>,
+				 <0>,
+				 <0>,
+				 <0>,
+				 <0>;
+		};
+
 		remoteproc_adsp: remoteproc@17300000 {
 			compatible = "qcom,msm8998-adsp-pas";
 			reg = <0x17300000 0x4040>;