Link the external IRQ controller irqc0 to the IRQC module clock, so it
can be power managed using that clock.

Signed-off-by: Geert Uytterhoeven <[email protected]>
---
 arch/arm/boot/dts/r8a7794.dtsi            | 9 +++++++++
 include/dt-bindings/clock/r8a7794-clock.h | 3 +++
 2 files changed, 12 insertions(+)

diff --git a/arch/arm/boot/dts/r8a7794.dtsi b/arch/arm/boot/dts/r8a7794.dtsi
index 7a3ffa51a8bf2c8b..01cf54f70501e8c2 100644
--- a/arch/arm/boot/dts/r8a7794.dtsi
+++ b/arch/arm/boot/dts/r8a7794.dtsi
@@ -105,6 +105,7 @@
                             <0 15 IRQ_TYPE_LEVEL_HIGH>,
                             <0 16 IRQ_TYPE_LEVEL_HIGH>,
                             <0 17 IRQ_TYPE_LEVEL_HIGH>;
+               clocks = <&mstp4_clks R8A7794_CLK_IRQC>;
        };
 
        dmac0: dma-controller@e6700000 {
@@ -625,6 +626,14 @@
                                "sdhi2", "sdhi1", "sdhi0",
                                "mmcif0", "cmt1", "usbdmac0", "usbdmac1";
                };
+               mstp4_clks: mstp4_clks@e6150140 {
+                       compatible = "renesas,r8a7794-mstp-clocks", 
"renesas,cpg-mstp-clocks";
+                       reg = <0 0xe6150140 0 4>, <0 0xe615004c 0 4>;
+                       clocks = <&cp_clk>;
+                       #clock-cells = <1>;
+                       clock-indices = <R8A7794_CLK_IRQC>;
+                       clock-output-names = "irqc";
+               };
                mstp7_clks: mstp7_clks@e615014c {
                        compatible = "renesas,r8a7794-mstp-clocks", 
"renesas,cpg-mstp-clocks";
                        reg = <0 0xe615014c 0 4>, <0 0xe61501c4 0 4>;
diff --git a/include/dt-bindings/clock/r8a7794-clock.h 
b/include/dt-bindings/clock/r8a7794-clock.h
index d63323032d6ef80e..09da38a58776b403 100644
--- a/include/dt-bindings/clock/r8a7794-clock.h
+++ b/include/dt-bindings/clock/r8a7794-clock.h
@@ -60,6 +60,9 @@
 #define R8A7794_CLK_USBDMAC0           30
 #define R8A7794_CLK_USBDMAC1           31
 
+/* MSTP4 */
+#define R8A7794_CLK_IRQC               7
+
 /* MSTP5 */
 #define R8A7794_CLK_THERMAL            22
 #define R8A7794_CLK_PWM                        23
-- 
1.9.1

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