linux-kernel - [PATCH] ARM64: zynqmp: Fix i2c node's compatible string

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Message-Id: <1482385788-7187-1-git-send-email-moritz.fischer@ettus.com>
Date:   Wed, 21 Dec 2016 21:49:48 -0800
From:   Moritz Fischer <moritz.fischer@...us.com>
To:     devicetree@...r.kernel.org
Cc:     linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Moritz Fischer <mdf@...nel.org>,
        Michal Simek <michal.simek@...inx.com>,
        Sören Brinkmann <soren.brinkmann@...inx.com>,
        U-Boot List <u-boot@...ts.denx.de>,
        Rob Herring <robh+dt@...nel.org>
Subject: [PATCH] ARM64: zynqmp: Fix i2c node's compatible string

From: Moritz Fischer <mdf@...nel.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@...nel.org>
Cc: Michal Simek <michal.simek@...inx.com>
Cc: Sören Brinkmann <soren.brinkmann@...inx.com>
Cc: U-Boot List <u-boot@...ts.denx.de>
Cc: Rob Herring <robh+dt@...nel.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@...20000 {
-			compatible = "cdns,i2c-r1p10";
+			compatible = "cdns,i2c-r1p14";
 			status = "disabled";
 			interrupt-parent = <&gic>;
 			interrupts = <0 17 4>;
@@ -185,7 +185,7 @@
 		};
 
 		i2c1: i2c@...30000 {
-			compatible = "cdns,i2c-r1p10";
+			compatible = "cdns,i2c-r1p14";
 			status = "disabled";
 			interrupt-parent = <&gic>;
 			interrupts = <0 18 4>;
-- 
2.4.11