From b0142a10db149daadbc2cc94c890dd00b3fa58ad Mon Sep 17 00:00:00 2001 From: Tony Lindgren Date: Wed, 30 Aug 2017 08:19:38 -0700 Subject: [PATCH] ARM: dts: Configure pmu without interrupt for omap4430 On omap4430, the PMU is not configure unlike on omap4460 because of the missing handling. The missing pmu node with the missing ti,hwmods entry will cause boot time errors when the legacy platform data is removed as the SoC interconnect code needs it. Note that this will only show up as a bug with "doesn't have mpu register target base" boot errors when the legacy platform data is removed. Let's fix the issue by configuring PMU but without the interrupts. Then when cross trigger interface (CTI) is supported, we can add interrupts also for omap4430. Cc: Jon Hunter Cc: Will Deacon Signed-off-by: Tony Lindgren --- arch/arm/boot/dts/omap4.dtsi | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/arch/arm/boot/dts/omap4.dtsi b/arch/arm/boot/dts/omap4.dtsi index 64d00f5..47bc419 100644 --- a/arch/arm/boot/dts/omap4.dtsi +++ b/arch/arm/boot/dts/omap4.dtsi @@ -51,6 +51,17 @@ }; }; + /* + * Note that 4430 needs cross trigger interface (CTI) supported + * before we can configure the interrupts. This means sampling + * events are not supported for pmu. Note that 4460 does not use + * CTI, see also 4460.dtsi. + */ + pmu { + compatible = "arm,cortex-a9-pmu"; + ti,hwmods = "debugss"; + }; + gic: interrupt-controller@48241000 { compatible = "arm,cortex-a9-gic"; interrupt-controller; -- 2.7.4