linux-kernel - Re: [PATCH v2 1/2] tty: serial: 8250: Add Mediatek UART driver

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Message-ID: <1407417714.8334.8.camel@acox1-desk.ger.corp.intel.com>
Date:	Thu, 07 Aug 2014 14:21:54 +0100
From:	Alan Cox <alan@...ux.intel.com>
To:	Matthias Brugger <matthias.bgg@...il.com>
Cc:	linux-kernel@...r.kernel.org, robh+dt@...nel.org,
	pawel.moll@....com, mark.rutland@....com,
	ijc+devicetree@...lion.org.uk, galak@...eaurora.org,
	rdunlap@...radead.org, gregkh@...uxfoundation.org, jslaby@...e.cz,
	grant.likely@...aro.org, varkabhadram@...il.com, heiko@...ech.de,
	yingjoe.chen@...il.com, devicetree@...r.kernel.org,
	linux-doc@...r.kernel.org, linux-serial@...r.kernel.org
Subject: Re: [PATCH v2 1/2] tty: serial: 8250: Add Mediatek UART driver


> +	 * Some baudrates are not supported by the chip, so we use the next
> +	 * lower rate supported and update termios c_flag.

I don't see the termios updating being done now ?

> +	data->clk = of_clk_get(np, 0);
> +	if (IS_ERR(data->clk)) {
> +		pr_warn("Can't get timer clock");
> +		return PTR_ERR(data->clk);
> +	}
> +
> +	err = clk_prepare_enable(data->clk);
> +	if (err) {
> +		pr_warn("Can't prepare clock");

and these do need a newline on them. They are also not very useful as
they don't indicate what device was involved. If you passed pdev from
mtk8250_probe you'd be able to use dev_warn instead

Otherwise looks great and exactly as 8250_core is intended to be used.

Alan


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