On Tue, Feb 27, 2018 at 10:31 PM, Shawn Guo [off-list ref] wrote:

On Mon, Feb 26, 2018 at 06:49:41AM -0800, Andrey Smirnov wrote:

quoted

With MFD and watchdog drivers for RAVE SP device support added by
538ee27290fa ("mfd: Add driver for RAVE Supervisory Processor") and
c3bb33345721 ("watchdog: Add RAVE SP watchdog driver") add
corresponding DT node for RDU2.

Cc: Rob Herring <robh+dt@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Fabio Estevam <redacted>
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: Chris Healy <redacted>
Cc: Lucas Stach <l.stach@pengutronix.de>
Cc: devicetree at vger.kernel.org
Cc: linux-arm-kernel at lists.infradead.org
Cc: linux-kernel at vger.kernel.org
Signed-off-by: Andrey Smirnov <redacted>
---
 arch/arm/boot/dts/imx6qdl-zii-rdu2.dtsi | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/arch/arm/boot/dts/imx6qdl-zii-rdu2.dtsi b/arch/arm/boot/dts/imx6qdl-zii-rdu2.dtsi
index 72f52fcecee1..460931089509 100644
--- a/arch/arm/boot/dts/imx6qdl-zii-rdu2.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-zii-rdu2.dtsi

@@ -305,6 +305,17 @@
      pinctrl-names = "default";
      pinctrl-0 = <&pinctrl_uart4>;
      status = "okay";
+
+     rave-sp {
+             compatible = "zii,rave-sp-rdu2";
+             current-speed = <1000000>;
+             status = "okay";

The okay status is to flip the state of devices that are initially
disabled.  I think it's unnecessary for the case here.

Good point, will respin v2 without that bit shortly.

Thanks,
Andrey Smirnov