linux-kernel - Re: [PATCH] clk: Simplify __of_clk_get_hw_from

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Message-ID: <20160826192833.GA19826@codeaurora.org>
Date:   Fri, 26 Aug 2016 12:28:33 -0700
From:   Stephen Boyd <sboyd@...eaurora.org>
To:     Michael Turquette <mturquette@...libre.com>
Cc:     Masahiro Yamada <yamada.masahiro@...ionext.com>,
        linux-kernel@...r.kernel.org, linux-clk@...r.kernel.org
Subject: Re: [PATCH] clk: Simplify __of_clk_get_hw_from_provider()

On 08/25, Stephen Boyd wrote:
> __of_clk_get_hw_from_provider() is confusing because it will
> return EPROBE_DEFER if there isn't a ->get() or ->get_hw()
> function pointer in a provider. That's just a bug though, and we
> used to NULL pointer exception when ->get() was missing anyway,
> so let's make this more obvious that they're not optional. The
> assumption is that most providers will implement ->get_hw() so we
> only fallback to the ->get() function if necessary. This
> clarifies the intent and removes any possibility of probe defer
> happening if clk providers are buggy.
> 
> Reported-by: Masahiro Yamada <yamada.masahiro@...ionext.com>
> Signed-off-by: Stephen Boyd <sboyd@...eaurora.org>
> ---

Applied to clk-next

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