From mboxrd@z Thu Jan 1 00:00:00 1970 From: Geert Uytterhoeven Subject: Re: [RFC] Serial port aliases in DT Date: Fri, 28 Mar 2014 09:39:22 +0100 Message-ID: References: <5448979.WQPtOb56tW@avalon> <20140328072827.GY17250@pengutronix.de> <6506478.py2Axu25u1@wuerfel> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Return-path: In-Reply-To: <6506478.py2Axu25u1@wuerfel> Sender: devicetree-spec-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Arnd Bergmann Cc: Sascha Hauer , Rob Herring , Laurent Pinchart , "devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" , SH-Linux , Wolfram Sang , devicetree-spec-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-Id: devicetree@vger.kernel.org Hi Arnd, On Fri, Mar 28, 2014 at 9:30 AM, Arnd Bergmann wrote: > On Friday 28 March 2014 09:09:23 Geert Uytterhoeven wrote: >> On the Renesas SoCs, where this thread started, you also have different >> types of IP blocks providing similar functionality on the same SoC. >> E.g. 3 types of serial ports, 2 types of i2c, (at least) 2 types of spi... >> Hence one more level of confusion (is SoC serial0 the first serial port of >> type A, B, or C?). > > The 'serial' aliases are defined to refer to UARTs only, there is no debate > about that. All 3 serial port types are UARTs. For the serial ports, they are sufficiently similar to use the same driver. For i2c and spi, that's not the case, and they use different drivers. Gr{oetje,eeting}s, Geert -- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert-Td1EMuHUCqxL1ZNQvxDV9g@public.gmane.org In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that. -- Linus Torvalds -- To unsubscribe from this list: send the line "unsubscribe devicetree-spec" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html