From: Boris BREZILLON <b.brezillon@overkiz.com>
Date: Fri, 11 Oct 2013 09:57:04 +0000 (+0200)
Subject: clk: at91: add PMC programmable clocks
X-Git-Tag: cleanup-for-linus~17^2~12
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1f22f8bb64b3619324020b48b03181914b1f5544;p=pandora-kernel.git

clk: at91: add PMC programmable clocks

This patch adds new at91 programmable clocks implementation using common clk
framework.
A programmable clock is a clock which can be exported on a given pin to clock
external devices.
Each programmable clock is given an id (from 0 to 8).
The number of available programmable clocks depends on the SoC you're using.
Programmable clock driver only implements the clock setting (clock rate and
parent setting). It must be chained to a system clock in order to
enable/disable the generated clock.
The PCKX pins used to output the clock signals must be assigned to the
appropriate peripheral (see atmel's datasheets).

Signed-off-by: Boris BREZILLON <b.brezillon@overkiz.com>
Acked-by: Mike Turquette <mturquette@linaro.org>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
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