Messages in this thread | | | Subject | Re: [PATCH] ARM64: zynqmp: Fix i2c node's compatible string | From | Michal Simek <> | Date | Thu, 22 Dec 2016 08:35:19 +0100 |
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On 22.12.2016 06:49, Moritz Fischer wrote: > From: Moritz Fischer <mdf@kernel.org> > > The Zynq Ultrascale MP uses version 1.4 of the Cadence IP core > which fixes some silicon bugs that needed software workarounds > in Version 1.0 that was used on Zynq systems. > > Signed-off-by: Moritz Fischer <mdf@kernel.org> > Cc: Michal Simek <michal.simek@xilinx.com> > Cc: Sören Brinkmann <soren.brinkmann@xilinx.com> > Cc: U-Boot List <u-boot@lists.denx.de> > Cc: Rob Herring <robh+dt@kernel.org> > --- > > Hi Michal, > > I think this is a slip up and should be r1p14 for > Ultrascale ZynqMP. drivers/i2c/i2c-cadence.c already uses this. > I Cc'd the u-boot list, because the same change would be required there. > > Cheers, > > Moritz > > --- > arch/arm64/boot/dts/xilinx/zynqmp.dtsi | 4 ++-- > 1 file changed, 2 insertions(+), 2 deletions(-) > > diff --git a/arch/arm64/boot/dts/xilinx/zynqmp.dtsi b/arch/arm64/boot/dts/xilinx/zynqmp.dtsi > index 68a90833..a5a5f91 100644 > --- a/arch/arm64/boot/dts/xilinx/zynqmp.dtsi > +++ b/arch/arm64/boot/dts/xilinx/zynqmp.dtsi > @@ -175,7 +175,7 @@ > }; > > i2c0: i2c@ff020000 { > - compatible = "cdns,i2c-r1p10"; > + compatible = "cdns,i2c-r1p14";
I was checking this internally and p10 is doing something what p14 doesn't need to do. That's why this should be
compatible = "cdns,i2c-r1p14", "cdns,i2c-r1p10";
The same of course for u-boot where also p14 should be added to the driver.
Thanks, Michal
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