linux-kernel - Re: [PATCH] clk: clk_set_parent() with current parent shouldn't fail

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Message-ID: <1422956554.3070.1.camel@pengutronix.de>
Date:	Tue, 03 Feb 2015 10:42:34 +0100
From:	Philipp Zabel <p.zabel@...gutronix.de>
To:	Stephen Boyd <sboyd@...eaurora.org>
Cc:	Mike Turquette <mturquette@...aro.org>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] clk: clk_set_parent() with current parent shouldn't fail

Am Montag, den 02.02.2015, 14:11 -0800 schrieb Stephen Boyd:
> If a driver calls clk_set_parent(clk, parent) and parent is the
> current parent of clk we shouldn't fail in any case.
> Unfortunately if clk is a read-only mux we return -ENOSYS
> because we think we can't change the parent, except for in this
> special case where we don't actually need to change the parent at
> all. Return 0 in such a situation.
> 
> Cc: Philipp Zabel <p.zabel@...gutronix.de>
> Signed-off-by: Stephen Boyd <sboyd@...eaurora.org>

Acked-by: Philipp Zabel <p.zabel@...gutronix.de>

regards
Philipp

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