Re: [PATCH 1/2] ARM: dts: BCM5301X: Specify serial console parameters
From: Andrew Lunn <hidden>
Date: 2017-03-14 12:51:39
Also in:
linux-arm-kernel
quoted
The alias is fine. But putting the stdout-path here is unusual. Which serial port is used for console is board specific, where as bcm5301x.dtsi is very generic, it describes the SoC, not a board. If you look at other .dtsi files, those that specify stdout-path contain properties which are common to a range of similar boards.So far I've never seen any board using other uart. Also uart0 is disabled by default and we enable it per board family (BCM4708 / BCM47081 / BCM4709 / BCM47094). I think it's just more practical to have simple DTS that covers 99,9% boards by default and handled that margin of devices separately. We already got a lot of duplicated code for enabling uart0, see: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=7b790d3b2943bf8e7e7bafe184008bd6451fe0bd Jon Mason from Broadcom who knows this hardware and designs very well confirmed it's a sane/safe assumption.
I don't disagree with you, it does make sense. But it is just different to every other SoC .dtsi file Linux has. And we try to avoid things being different. It is down to Florian to decide, as maintainer. Andrew -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html