diff mbox series

[v2,1/2] dts: ppc: t4240rdb: remove interrupts property

Message ID 20200520091543.44692-1-biwen.li@oss.nxp.com
State Not Applicable
Headers show
Series [v2,1/2] dts: ppc: t4240rdb: remove interrupts property | expand

Checks

Context Check Description
snowpatch_ozlabs/needsstable success Patch has no Fixes tags
snowpatch_ozlabs/checkpatch success total: 0 errors, 0 warnings, 0 checks, 7 lines checked
snowpatch_ozlabs/apply_patch success Successfully applied on branch powerpc/merge (7b06fb8795ffea9d12be45a172197c3307955479)

Commit Message

Biwen Li May 20, 2020, 9:15 a.m. UTC
From: Biwen Li <biwen.li@nxp.com>

This removes interrupts 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 | 1 -
 1 file changed, 1 deletion(-)

Comments

Li Yang May 22, 2020, 7:20 p.m. UTC | #1
On Wed, May 20, 2020 at 4:21 AM Biwen Li <biwen.li@oss.nxp.com> wrote:
>
> From: Biwen Li <biwen.li@nxp.com>
>
> This removes interrupts 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

The commit message need a little bit improvement.  Something like:

Since the interrupt pin for RTC DS1374 is not connected to the CPU on
T4240RDB, remove
the interrupt property from the device tree.

This also fix the following warning for hwclock.util-linux:
  $ hwclock.util-linux
   hwclock.util-linux: select() to /dev/rtc0
   to wait for clock tick timed out

>
> Signed-off-by: Biwen Li <biwen.li@nxp.com>
> ---
>  arch/powerpc/boot/dts/fsl/t4240rdb.dts | 1 -
>  1 file changed, 1 deletion(-)
>
> diff --git a/arch/powerpc/boot/dts/fsl/t4240rdb.dts b/arch/powerpc/boot/dts/fsl/t4240rdb.dts
> index a56a705d41f7..145896f2eef6 100644
> --- a/arch/powerpc/boot/dts/fsl/t4240rdb.dts
> +++ b/arch/powerpc/boot/dts/fsl/t4240rdb.dts
> @@ -144,7 +144,6 @@
>                         rtc@68 {
>                                 compatible = "dallas,ds1374";
>                                 reg = <0x68>;
> -                               interrupts = <0x1 0x1 0 0>;
>                         };
>                 };
>
> --
> 2.17.1
>
diff mbox series

Patch

diff --git a/arch/powerpc/boot/dts/fsl/t4240rdb.dts b/arch/powerpc/boot/dts/fsl/t4240rdb.dts
index a56a705d41f7..145896f2eef6 100644
--- a/arch/powerpc/boot/dts/fsl/t4240rdb.dts
+++ b/arch/powerpc/boot/dts/fsl/t4240rdb.dts
@@ -144,7 +144,6 @@ 
 			rtc@68 {
 				compatible = "dallas,ds1374";
 				reg = <0x68>;
-				interrupts = <0x1 0x1 0 0>;
 			};
 		};