Re: [PATCH 1/2] serial: samsung: Move uart_register_driver call todevice probe

From: Russell King - ARM Linux
Date: Mon Jan 20 2014 - 05:05:43 EST

On Mon, Jan 20, 2014 at 02:32:34PM +0530, Tushar Behera wrote:
> uart_register_driver call binds the driver to a specific device
> node through tty_register_driver call. This should typically happen
> during device probe call.
> In a multiplatform scenario, it is possible that multiple serial
> drivers are part of the kernel. Currently the driver registration fails
> if multiple serial drivers with same default major/minor numbers are
> included in the kernel.
> A typical case is observed with amba-pl011 and samsung-uart drivers.

The samsung-uart driver is at fault here - the major/minor numbers were
officially registered to amba-pl011. Samsung needs to be fixed properly.

FTTC broadband for 0.8mile line: 5.8Mbps down 500kbps up. Estimation
in database were 13.1 to 19Mbit for a good line, about 7.5+ for a bad.
Estimate before purchase was "up to 13.2Mbit".
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