From: Matthias Schiffer Date: Tue, 19 Apr 2022 07:51:57 +0000 (+0200) Subject: arm64: dts: ti: k3-am64-mcu: remove incorrect UART base clock rates X-Git-Tag: Ubuntu-5.15.0-48.54~961 X-Git-Url: https://git.proxmox.com/?a=commitdiff_plain;h=a4e74b3107ce9d60f2b7a8d95aa3456226cda6f5;p=mirror_ubuntu-jammy-kernel.git arm64: dts: ti: k3-am64-mcu: remove incorrect UART base clock rates BugLink: https://bugs.launchpad.net/bugs/1981864 [ Upstream commit 439677d416b17dd39964d5f7d64b742a2e51da5b ] We found that (at least some versions of) the sci-fw set the base clock rate for UARTs in the MCU domain to 96 MHz instead of the expected 48 MHz, leading to incorrect baud rates when used from Linux. As the 8250_omap driver will query the actual clock rate from the clk driver when clock-frequency is unset, removing the incorrect property is sufficient to fix the baud rate. Fixes: 8abae9389bdb ("arm64: dts: ti: Add support for AM642 SoC") Signed-off-by: Matthias Schiffer Signed-off-by: Vignesh Raghavendra Reviewed-by: Vignesh Raghavendra Link: https://lore.kernel.org/r/20220419075157.189347-1-matthias.schiffer@ew.tq-group.com Signed-off-by: Sasha Levin Signed-off-by: Kamal Mostafa Signed-off-by: Stefan Bader --- diff --git a/arch/arm64/boot/dts/ti/k3-am64-mcu.dtsi b/arch/arm64/boot/dts/ti/k3-am64-mcu.dtsi index 59cc58f7d0c8..93e684bbd66c 100644 --- a/arch/arm64/boot/dts/ti/k3-am64-mcu.dtsi +++ b/arch/arm64/boot/dts/ti/k3-am64-mcu.dtsi @@ -10,7 +10,6 @@ compatible = "ti,am64-uart", "ti,am654-uart"; reg = <0x00 0x04a00000 0x00 0x100>; interrupts = ; - clock-frequency = <48000000>; current-speed = <115200>; power-domains = <&k3_pds 149 TI_SCI_PD_EXCLUSIVE>; clocks = <&k3_clks 149 0>; @@ -21,7 +20,6 @@ compatible = "ti,am64-uart", "ti,am654-uart"; reg = <0x00 0x04a10000 0x00 0x100>; interrupts = ; - clock-frequency = <48000000>; current-speed = <115200>; power-domains = <&k3_pds 160 TI_SCI_PD_EXCLUSIVE>; clocks = <&k3_clks 160 0>;