Link the ARM GIC to the INTC-SYS module clock, and add it to the "always
on" PM Domain, so it can be power managed using that clock.
Note that currently the GIC-400 driver doesn't support module clocks nor
Runtime PM, so this must be handled as a critical clock.
Signed-off-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
---
v2:
- Drop RFC status,
- Rebased on top of CPG Clock Domain support,
- Add clock-names property,
- Change one-line summary prefix to match current arm-soc practices.
- Rebased on top of R-Car SYSC PM Domain support,
- s/GIC driver/GIC-400 driver/,
- Document critical clock dependency.
---
arch/arm/boot/dts/r8a7794.dtsi | 9 ++++++---
include/dt-bindings/clock/r8a7794-clock.h | 1 +
2 files changed, 7 insertions(+), 3 deletions(-)
diff --git a/arch/arm/boot/dts/r8a7794.dtsi b/arch/arm/boot/dts/r8a7794.dtsi
index cb31cd2232f9166f..38bf9ed8e739ea2b 100644
--- a/arch/arm/boot/dts/r8a7794.dtsi
+++ b/arch/arm/boot/dts/r8a7794.dtsi
@@ -74,6 +74,9 @@
<0 0xf1004000 0 0x2000>,
<0 0xf1006000 0 0x2000>;
interrupts = <GIC_PPI 9 (GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_HIGH)>;
+ clocks = <&mstp4_clks R8A7794_CLK_INTC_SYS>;
+ clock-names = "clk";
+ power-domains = <&sysc R8A7794_PD_ALWAYS_ON>;
};
gpio0: gpio@e6050000 {
@@ -1247,10 +1250,10 @@
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>;
+ clocks = <&cp_clk>, <&zs_clk>;
#clock-cells = <1>;
- clock-indices = <R8A7794_CLK_IRQC>;
- clock-output-names = "irqc";
+ clock-indices = <R8A7794_CLK_IRQC R8A7794_CLK_INTC_SYS>;
+ clock-output-names = "irqc", "intc-sys";
};
mstp5_clks: mstp5_clks@e6150144 {
compatible = "renesas,r8a7794-mstp-clocks", "renesas,cpg-mstp-clocks";
diff --git a/include/dt-bindings/clock/r8a7794-clock.h b/include/dt-bindings/clock/r8a7794-clock.h
index 88e64846cf370ff4..a26776f7deddbaa4 100644
--- a/include/dt-bindings/clock/r8a7794-clock.h
+++ b/include/dt-bindings/clock/r8a7794-clock.h
@@ -64,6 +64,7 @@
/* MSTP4 */
#define R8A7794_CLK_IRQC 7
+#define R8A7794_CLK_INTC_SYS 8
/* MSTP5 */
#define R8A7794_CLK_AUDIO_DMAC0 2
--
2.7.4
