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Subject[PATCH 2/3] dts: ppc: t4240rdb: add uie_unsupported property to drop warning
Date
From: Biwen Li <biwen.li@nxp.com>

This adds uie_unsupported property to drop warning as follows:
- $ hwclock.util-linux
hwclock.util-linux: select() to /dev/rtc0
to wait for clock tick timed out

My case:
- RTC ds1374's INT pin is connected to VCC on T4240RDB,
then the RTC cannot inform cpu about the alarm interrupt

Signed-off-by: Biwen Li <biwen.li@nxp.com>
---
arch/powerpc/boot/dts/fsl/t4240rdb.dts | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/arch/powerpc/boot/dts/fsl/t4240rdb.dts b/arch/powerpc/boot/dts/fsl/t4240rdb.dts
index a56a705d41f7..ccdd10202e56 100644
--- a/arch/powerpc/boot/dts/fsl/t4240rdb.dts
+++ b/arch/powerpc/boot/dts/fsl/t4240rdb.dts
@@ -144,7 +144,11 @@
rtc@68 {
compatible = "dallas,ds1374";
reg = <0x68>;
- interrupts = <0x1 0x1 0 0>;
+ // The ds1374's INT pin isn't
+ // connected to cpu's INT pin,
+ // so the rtc cannot synchronize
+ // clock tick per second.
+ uie_unsupported;
};
};

--
2.17.1
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