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From: sebastian.hesselbarth@gmail.com (Sebastian Hesselbarth)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 0/4] clk: mvebu: fix clk init order
Date: Thu, 30 Jan 2014 11:31:32 +0100	[thread overview]
Message-ID: <52EA2A04.2070109@gmail.com> (raw)
In-Reply-To: <52EA2875.5020807@free-electrons.com>

On 01/30/14 11:24, Gregory CLEMENT wrote:
> On 25/01/2014 19:19, Sebastian Hesselbarth wrote:
>> This patch set fixes clk init order that went upside-down with
>> v3.14. I haven't really investigated what caused this, but I assume
>> it is related with DT node reordering by addresses.
>
> Can you explain what kind of issue do you observe?

Sure. When probing CLK_OF_DECLAREed clock drivers, clock-gating driver
gets registered before core-clocks. It therefore cannot resolve it's
parent clock name for tclk and all clock gates will have no parent
clock.

Usually, you'll see in some drivers (e.g. v643xx_eth) div_by_zero errors
poping up, when they calculate a frequency division factors based on
clock gate frequency, which should have been tclk but is 0 now.

> I have just tested the master branch of Linus and (excepted for SATA
> but Andrew will send a patch set soon), I didn't experiment any
> issues on Armada 370 and Armada XP based boards.

  reply	other threads:[~2014-01-30 10:31 UTC|newest]

Thread overview: 36+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-01-25 18:19 [PATCH 0/4] clk: mvebu: fix clk init order Sebastian Hesselbarth
2014-01-25 18:19 ` [PATCH 1/4] clk: mvebu: armada-370: maintain clock " Sebastian Hesselbarth
2014-01-25 18:19 ` [PATCH 2/4] clk: mvebu: armada-xp: " Sebastian Hesselbarth
2014-01-25 18:19 ` [PATCH 3/4] clk: mvebu: dove: " Sebastian Hesselbarth
2014-01-25 18:19 ` [PATCH 4/4] clk: mvebu: kirkwood: " Sebastian Hesselbarth
2014-01-25 21:32 ` [PATCH 0/4] clk: mvebu: fix clk " Emilio López
2014-01-25 21:44   ` Sebastian Hesselbarth
2014-01-25 22:11     ` Emilio López
2014-01-26  0:25       ` Ezequiel Garcia
2014-01-27 14:39 ` Thomas Petazzoni
2014-01-27 18:21   ` Sebastian Hesselbarth
2014-01-27 18:28     ` Jason Cooper
2014-01-30 10:24 ` Gregory CLEMENT
2014-01-30 10:31   ` Sebastian Hesselbarth [this message]
2014-02-03 23:16     ` Willy Tarreau
2014-02-03 23:36       ` Sebastian Hesselbarth
2014-02-04 14:58         ` Gregory CLEMENT
2014-02-04 20:07           ` Thomas Petazzoni
2014-02-05 14:08 ` Mike Turquette
2014-02-05 17:43   ` Jason Cooper
2014-02-05 18:34 ` Jason Cooper
2014-02-06 17:08   ` Ezequiel Garcia
2014-02-06 18:08     ` Jason Cooper
2014-02-17 14:13   ` Ezequiel Garcia
2014-02-17 14:25     ` Gregory CLEMENT
2014-02-17 14:42       ` Emilio López
2014-02-17 15:04         ` Gregory CLEMENT
2014-02-17 15:31           ` Emilio López
2014-02-17 15:21       ` Ezequiel Garcia
2014-02-17 15:28         ` Gregory CLEMENT
2014-02-17 15:44           ` Ezequiel Garcia
2014-02-17 15:59             ` Gregory CLEMENT
2014-02-17 18:19               ` Ezequiel Garcia
2014-02-18  9:47                 ` Gregory CLEMENT
2014-02-19 16:28                   ` Ezequiel Garcia
2014-02-19 20:24                   ` Emilio López

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