linux-kernel - [PATCH v3 6/6] ARM: dts: hisilicon: Fix SP805 clocks

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Message-Id: <20200907121831.242281-7-andre.przywara@arm.com>
Date:   Mon,  7 Sep 2020 13:18:31 +0100
From:   Andre Przywara <andre.przywara@....com>
To:     soc@...nel.org
Cc:     Rob Herring <robh@...nel.org>, devicetree@...r.kernel.org,
        Wei Xu <xuwei5@...ilicon.com>, Chanho Min <chanho.min@....com>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH v3 6/6] ARM: dts: hisilicon: Fix SP805 clocks

The SP805 DT binding requires two clocks to be specified, but
Hisilicon platform DTs currently only specify one clock.

In practice, Linux would pick a clock named "apb_pclk" for the bus
clock, and the Linux and U-Boot SP805 driver would use the first clock
to derive the actual watchdog counter frequency.

Since currently both are the very same clock, we can just double the
clock reference, and add the correct clock-names, to match the binding.

Signed-off-by: Andre Przywara <andre.przywara@....com>
---
 arch/arm/boot/dts/hisi-x5hd2.dtsi | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/arch/arm/boot/dts/hisi-x5hd2.dtsi b/arch/arm/boot/dts/hisi-x5hd2.dtsi
index 3ee7967c202d..e2dbf1d8a67b 100644
--- a/arch/arm/boot/dts/hisi-x5hd2.dtsi
+++ b/arch/arm/boot/dts/hisi-x5hd2.dtsi
@@ -370,8 +370,9 @@
 				arm,primecell-periphid = <0x00141805>;
 				reg = <0xa2c000 0x1000>;
 				interrupts = <0 29 4>;
-				clocks = <&clock HIX5HD2_WDG0_RST>;
-				clock-names = "apb_pclk";
+				clocks = <&clock HIX5HD2_WDG0_RST>,
+					 <&clock HIX5HD2_WDG0_RST>;
+				clock-names = "wdog_clk", "apb_pclk";
 			};
 		};
 
-- 
2.17.1