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From: Jean-Francois Moine <moinejf@free.fr>
To: Maxime Ripard <maxime.ripard@free-electrons.com>
Cc: Chen-Yu Tsai <wens@csie.org>,
	Michael Turquette <mturquette@baylibre.com>,
	Stephen Boyd <sboyd@codeaurora.org>,
	Rob Herring <robh+dt@kernel.org>,
	Mark Rutland <mark.rutland@arm.com>,
	devicetree@vger.kernel.org, dev@linux-sunxi.org,
	linux-kernel@vger.kernel.org, linux-clk@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH 4/9] clk: sunxi-ng: mux: Add support for mux tables
Date: Wed, 27 Jul 2016 10:36:49 +0200	[thread overview]
Message-ID: <20160727103649.9e6ef332847b5a5c8fac66af@free.fr> (raw)
In-Reply-To: <20160727074020.GH6560@lukather>

On Wed, 27 Jul 2016 09:40:20 +0200
Maxime Ripard <maxime.ripard@free-electrons.com> wrote:

> > > Parenting functions would also not work as expected,
> > > clk_hw_get_parent_by_index being the obvious example, in that case
> > > returning the empty string for an invalid parent, while it should
> > > really return NULL.
> >=20
> > I don't see why the clock should be orphan.
> > Then, when a parent is "", clk_hw_get_parent_by_index() returns NULL.
>=20
> Why? It should return NULL when there's no parent, while you
> explicitly registered a parent.

"" is not an existing parent. It could be "none" / "dum" / "toto" / ...
with the same result: 'this index cannot be used in mux'.

--=20
Ken ar c'henta=F1	|	      ** Breizh ha Linux atav! **
Jef		|		http://moinejf.free.fr/

  reply	other threads:[~2016-07-27  8:36 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-07-26  7:04 [PATCH 0/9] clk: sunxi-ng: Support A31/A31s CCU Chen-Yu Tsai
2016-07-26  7:04 ` [PATCH resend 1/9] clk: sunxi-ng: Fix inverted test condition in ccu_helper_wait_for_lock Chen-Yu Tsai
2016-07-26  8:56   ` Maxime Ripard
2016-07-26  7:04 ` [PATCH 2/9] clk: sunxi-ng: nk: Make ccu_nk_find_best static Chen-Yu Tsai
2016-07-26  8:57   ` Maxime Ripard
2016-07-26  7:04 ` [PATCH 3/9] clk: sunxi-ng: mux: Increase fixed pre-divider div size Chen-Yu Tsai
2016-07-27  6:43   ` Maxime Ripard
2016-07-26  7:04 ` [PATCH 4/9] clk: sunxi-ng: mux: Add support for mux tables Chen-Yu Tsai
2016-07-26 17:43   ` Jean-Francois Moine
2016-07-27  6:59     ` Maxime Ripard
2016-07-27  7:18       ` Jean-Francois Moine
2016-07-27  7:30         ` Chen-Yu Tsai
2016-07-27  7:40         ` Maxime Ripard
2016-07-27  8:36           ` Jean-Francois Moine [this message]
2016-07-28 13:28             ` Maxime Ripard
2016-07-28 14:23               ` Jean-Francois Moine
2016-07-27  6:48   ` Maxime Ripard
2016-07-26  7:04 ` [PATCH 5/9] clk: sunxi-ng: mux: support fixed pre-dividers on multiple parents Chen-Yu Tsai
2016-07-27  7:26   ` Maxime Ripard
2016-07-27  8:38   ` Jean-Francois Moine
2016-07-26  7:04 ` [PATCH 6/9] clk: sunxi-ng: nkm: Add mux to support " Chen-Yu Tsai
2016-07-27  7:27   ` Maxime Ripard
2016-07-26  7:04 ` [PATCH 7/9] clk: sunxi-ng: mux: Add clk notifier functions Chen-Yu Tsai
2016-07-27  7:30   ` Maxime Ripard
2016-07-27  7:32     ` Chen-Yu Tsai
2016-07-27  7:43       ` Maxime Ripard
2016-07-26  7:04 ` [PATCH 8/9] clk: sunxi-ng: Add A31/A31s clocks Chen-Yu Tsai
2016-07-26  8:30   ` Jean-Francois Moine
2016-07-27 14:59   ` Rob Herring
2016-07-28 13:31   ` Maxime Ripard
2016-07-26  7:04 ` [PATCH 9/9] ARM: dts: sun6i: switch A31/A31s to new CCU clock bindings Chen-Yu Tsai

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