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From: Andre Przywara <andre.przywara@arm.com>
To: Rob Herring <robh+dt@kernel.org>, devicetree@vger.kernel.org
Cc: Guenter Roeck <linux@roeck-us.net>,
	Wim Van Sebroeck <wim@linux-watchdog.org>,
	Viresh Kumar <vireshk@kernel.org>,
	linux-watchdog@vger.kernel.org, linux-kernel@vger.kernel.org,
	Ray Jui <rjui@broadcom.com>,
	Scott Branden <sbranden@broadcom.com>,
	Florian Fainelli <f.fainelli@gmail.com>,
	bcm-kernel-feedback-list@broadcom.com
Subject: [PATCH 08/10] ARM: dts: Cygnus: Fix SP805 clocks
Date: Fri, 28 Aug 2020 14:06:00 +0100	[thread overview]
Message-ID: <20200828130602.42203-9-andre.przywara@arm.com> (raw)
In-Reply-To: <20200828130602.42203-1-andre.przywara@arm.com>

The SP805 DT binding requires two clocks to be specified, but the
Broadcom Cygnus DT currently only specifies 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@arm.com>
---
 arch/arm/boot/dts/bcm-cygnus.dtsi | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm/boot/dts/bcm-cygnus.dtsi b/arch/arm/boot/dts/bcm-cygnus.dtsi
index 35bdd0969f0a..dacaef2c14ca 100644
--- a/arch/arm/boot/dts/bcm-cygnus.dtsi
+++ b/arch/arm/boot/dts/bcm-cygnus.dtsi
@@ -234,8 +234,8 @@
 			compatible = "arm,sp805" , "arm,primecell";
 			reg = <0x18009000 0x1000>;
 			interrupts = <GIC_SPI 91 IRQ_TYPE_LEVEL_HIGH>;
-			clocks = <&axi81_clk>;
-			clock-names = "apb_pclk";
+			clocks = <&axi81_clk>, <&axi81_clk>;
+			clock-names = "wdog_clk", "apb_pclk";
 		};
 
 		gpio_ccm: gpio@1800a000 {
-- 
2.17.1


  parent reply	other threads:[~2020-08-28 13:10 UTC|newest]

Thread overview: 35+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-08-28 13:05 [PATCH 00/10] dt-bindings: Convert SP805 to Json-schema (and fix users) Andre Przywara
2020-08-28 13:05 ` [PATCH 01/10] dt-bindings: watchdog: sp-805: Convert to Json-schema Andre Przywara
2020-08-31  5:28   ` Viresh Kumar
2020-09-08 17:20   ` Rob Herring
2020-09-08 17:25     ` Rob Herring
2020-08-28 13:05 ` [PATCH 02/10] arm64: dts: arm: Fix SP805 clock-names Andre Przywara
2020-08-28 13:05 ` [PATCH 03/10] arm64: dts: broadcom: " Andre Przywara
2020-08-28 17:08   ` Ray Jui
2020-08-28 19:32   ` Florian Fainelli
2020-08-31  3:57   ` Florian Fainelli
2020-08-28 13:05 ` [PATCH 04/10] arm64: dts: freescale: " Andre Przywara
2020-08-31  5:53   ` Shawn Guo
2020-08-28 13:05 ` [PATCH 05/10] arm64: dts: hisilicon: Fix SP805 clocks Andre Przywara
2020-08-28 13:05 ` [PATCH 06/10] arm64: dts: lg: " Andre Przywara
2020-08-28 13:05 ` [PATCH 07/10] ARM: dts: arm: " Andre Przywara
2020-08-28 14:45   ` Linus Walleij
2020-08-28 13:06 ` Andre Przywara [this message]
2020-08-28 17:09   ` [PATCH 08/10] ARM: dts: Cygnus: " Ray Jui
2020-08-28 19:31   ` Florian Fainelli
2020-08-31  3:55   ` Florian Fainelli
2020-08-31  3:59     ` Florian Fainelli
2020-08-28 13:06 ` [PATCH 09/10] ARM: dts: NSP: Fix SP805 clock-names Andre Przywara
2020-08-28 17:09   ` Ray Jui
2020-08-28 19:31   ` Florian Fainelli
2020-08-31  3:55   ` Florian Fainelli
2020-08-28 13:06 ` [PATCH 10/10] ARM: dts: hisilicon: Fix SP805 clocks Andre Przywara
2020-08-28 19:34 ` [PATCH 00/10] dt-bindings: Convert SP805 to Json-schema (and fix users) Florian Fainelli
2020-08-28 21:28   ` Rob Herring
2020-08-28 21:32     ` Florian Fainelli
2020-09-01 15:56       ` André Przywara
2020-09-04  8:58   ` Linus Walleij
2020-09-04 15:29     ` Florian Fainelli
2020-09-04 15:35       ` André Przywara
2020-09-04 15:40         ` Florian Fainelli
2020-09-08 12:48 ` Sudeep Holla

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