From: andrew@lunn.ch (Andrew Lunn)
Date: Wed, 15 Apr 2015 20:57:05 +0200
Subject: [PATCH] ARM: mvebu: armada-xp-openblocks-ax3-4: Disable internal
 RTC
In-Reply-To: <1429094447-4324-1-git-send-email-gregory.clement@free-electrons.com>
References: <1429094447-4324-1-git-send-email-gregory.clement@free-electrons.com>
Message-ID: <20150415185705.GA13105@lunn.ch>
To: linux-arm-kernel@lists.infradead.org
List-Id: linux-arm-kernel.lists.infradead.org

On Wed, Apr 15, 2015 at 12:40:47PM +0200, Gregory CLEMENT wrote:
> There is no crystal connected to the internal RTC on the Open Block
> AX3. So let's disable it in order to prevent the kernel probing the
> driver uselessly. Eventually this patches removes the following
> warning message from the boot log:
> "rtc-mv d0010300.rtc: internal RTC not ticking"

Hi Gregory

I've seen this as well with my device.

Acked-by: Andrew Lunn <andrew@lunn.ch>

	  Andrew

> 
> Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
> Cc: <stable@vger.kernel.org> # v3.8 +
> ---
> Hi,
> 
> I plan to add this patch to mvebu/fixes once the v4.1-rc1 will be
> released. I don't expect much comments about it, but there is time
> for them if needed until the next PR.
> 
> Thanks,
> 
> Gregory
> 
> 
>  arch/arm/boot/dts/armada-xp-openblocks-ax3-4.dts | 4 ++++
>  1 file changed, 4 insertions(+)
> 
> diff --git a/arch/arm/boot/dts/armada-xp-openblocks-ax3-4.dts b/arch/arm/boot/dts/armada-xp-openblocks-ax3-4.dts
> index 0c76d9f05fd0..f4838ebd918b 100644
> --- a/arch/arm/boot/dts/armada-xp-openblocks-ax3-4.dts
> +++ b/arch/arm/boot/dts/armada-xp-openblocks-ax3-4.dts
> @@ -105,6 +105,10 @@
>  		};
>  
>  		internal-regs {
> +			rtc at 10300 {
> +				/* No crystal connected to the internal RTC */
> +				status = "disabled";
> +			};
>  			serial at 12000 {
>  				status = "okay";
>  			};
> -- 
> 2.1.0
>