From c77a6ac84085c0f27209f6f26c271d20f8e74f93 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Pali=20Roh=C3=A1r?= Date: Sat, 19 Feb 2022 16:28:18 +0100 Subject: [PATCH] arm64: dts: marvell: armada-37xx: add device node for UART clock and use it MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Define DT node for UART clock "marvell,armada-3700-uart-clock" and use this UART clock as a base clock for all UART devices. Reviewed-by: Marek Behún Acked-by: Gregory CLEMENT Signed-off-by: Pali Rohár Signed-off-by: Marek Behún Link: https://lore.kernel.org/r/20220219152818.4319-7-kabel@kernel.org Signed-off-by: Greg Kroah-Hartman --- arch/arm64/boot/dts/marvell/armada-37xx.dtsi | 14 ++++++++++++-- 1 file changed, 12 insertions(+), 2 deletions(-) diff --git a/arch/arm64/boot/dts/marvell/armada-37xx.dtsi b/arch/arm64/boot/dts/marvell/armada-37xx.dtsi index 673f4906eef90..da2f6b5c4b203 100644 --- a/arch/arm64/boot/dts/marvell/armada-37xx.dtsi +++ b/arch/arm64/boot/dts/marvell/armada-37xx.dtsi @@ -132,10 +132,20 @@ reg = <0x11500 0x40>; }; + uartclk: clock-controller@12010 { + compatible = "marvell,armada-3700-uart-clock"; + reg = <0x12010 0x4>, <0x12210 0x4>; + clocks = <&tbg 0>, <&tbg 1>, <&tbg 2>, + <&tbg 3>, <&xtalclk>; + clock-names = "TBG-A-P", "TBG-B-P", "TBG-A-S", + "TBG-B-S", "xtal"; + #clock-cells = <1>; + }; + uart0: serial@12000 { compatible = "marvell,armada-3700-uart"; reg = <0x12000 0x18>; - clocks = <&xtalclk>; + clocks = <&uartclk 0>; interrupts = , , @@ -147,7 +157,7 @@ uart1: serial@12200 { compatible = "marvell,armada-3700-uart-ext"; reg = <0x12200 0x30>; - clocks = <&xtalclk>; + clocks = <&uartclk 1>; interrupts = , ; -- 2.30.2