From: Stephen Boyd <sboyd@codeaurora.org>
To: Stefan Agner <stefan@agner.ch>
Cc: shawnguo@kernel.org, kernel@pengutronix.de,
mturquette@baylibre.com, linux-arm-kernel@lists.infradead.org,
linux-clk@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 1/2] clk: imx: do not sleep if IRQ's are still disabled
Date: Fri, 15 Apr 2016 18:00:53 -0700 [thread overview]
Message-ID: <20160416010052.GR26353@codeaurora.org> (raw)
In-Reply-To: <1454107764-19876-1-git-send-email-stefan@agner.ch>
On 01/29, Stefan Agner wrote:
> If a clock gets enabled early during boot time, it can lead to a PLL
> startup. The wait_lock function makes sure that the PLL is really
> stareted up before it gets used. However, the function sleeps which
> leads to scheduling and an error:
> bad: scheduling from the idle thread!
> ...
>
> Use udelay in case IRQ's are still disabled.
>
> Signed-off-by: Stefan Agner <stefan@agner.ch>
This is really old. Shawn, are you picking these up? I'm removing
these from my queue for now.
--
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
a Linux Foundation Collaborative Project
WARNING: multiple messages have this Message-ID (diff)
From: sboyd@codeaurora.org (Stephen Boyd)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 1/2] clk: imx: do not sleep if IRQ's are still disabled
Date: Fri, 15 Apr 2016 18:00:53 -0700 [thread overview]
Message-ID: <20160416010052.GR26353@codeaurora.org> (raw)
In-Reply-To: <1454107764-19876-1-git-send-email-stefan@agner.ch>
On 01/29, Stefan Agner wrote:
> If a clock gets enabled early during boot time, it can lead to a PLL
> startup. The wait_lock function makes sure that the PLL is really
> stareted up before it gets used. However, the function sleeps which
> leads to scheduling and an error:
> bad: scheduling from the idle thread!
> ...
>
> Use udelay in case IRQ's are still disabled.
>
> Signed-off-by: Stefan Agner <stefan@agner.ch>
This is really old. Shawn, are you picking these up? I'm removing
these from my queue for now.
--
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
a Linux Foundation Collaborative Project
next prev parent reply other threads:[~2016-04-16 1:00 UTC|newest]
Thread overview: 78+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-29 22:49 [PATCH 1/2] clk: imx: do not sleep if IRQ's are still disabled Stefan Agner
2016-01-29 22:49 ` Stefan Agner
2016-01-29 22:49 ` [PATCH 2/2] clk: imx: return correct frequency for Ethernet PLL Stefan Agner
2016-01-29 22:49 ` Stefan Agner
2016-01-29 23:35 ` [PATCH 1/2] clk: imx: do not sleep if IRQ's are still disabled Joshua Clayton
2016-01-29 23:35 ` Joshua Clayton
2016-01-30 1:16 ` Stephen Boyd
2016-01-30 1:16 ` Stephen Boyd
2016-04-26 17:04 ` Stefan Agner
2016-04-26 17:04 ` Stefan Agner
2016-04-16 1:00 ` Stephen Boyd [this message]
2016-04-16 1:00 ` Stephen Boyd
2016-04-18 1:58 ` Shawn Guo
2016-04-18 1:58 ` Shawn Guo
2016-04-21 3:45 ` Dong Aisheng
2016-04-21 3:45 ` Dong Aisheng
2016-04-26 1:23 ` Shawn Guo
2016-04-26 1:23 ` Shawn Guo
2016-04-26 5:51 ` Dong Aisheng
2016-04-26 5:51 ` Dong Aisheng
2016-04-26 9:24 ` Shawn Guo
2016-04-26 9:24 ` Shawn Guo
2016-04-26 9:31 ` Lucas Stach
2016-04-26 9:31 ` Lucas Stach
2016-04-26 11:16 ` Dong Aisheng
2016-04-26 11:16 ` Dong Aisheng
2016-04-26 11:27 ` Dong Aisheng
2016-04-26 11:27 ` Dong Aisheng
2016-04-27 1:58 ` Shawn Guo
2016-04-27 1:58 ` Shawn Guo
2016-04-27 2:45 ` Dong Aisheng
2016-04-27 2:45 ` Dong Aisheng
2016-04-27 2:56 ` Fabio Estevam
2016-04-27 2:56 ` Fabio Estevam
2016-04-27 7:28 ` Stefan Agner
2016-04-27 7:28 ` Stefan Agner
2016-04-27 8:53 ` Dong Aisheng
2016-04-27 8:53 ` Dong Aisheng
2016-04-27 2:57 ` Dong Aisheng
2016-04-27 2:57 ` Dong Aisheng
2016-04-27 7:24 ` Shawn Guo
2016-04-27 7:24 ` Shawn Guo
2016-04-27 7:26 ` Stefan Agner
2016-04-27 7:26 ` Stefan Agner
2016-04-27 8:48 ` Dong Aisheng
2016-04-27 8:48 ` Dong Aisheng
2016-04-27 7:34 ` Stefan Agner
2016-04-27 7:34 ` Stefan Agner
2016-04-27 8:57 ` Dong Aisheng
2016-04-27 8:57 ` Dong Aisheng
2016-04-27 10:15 ` Thomas Gleixner
2016-04-27 10:15 ` Thomas Gleixner
2016-04-29 9:45 ` [RFC PATCH 1/1] clk: imx7d: move clk setting out of imx7d_clocks_init Dong Aisheng
2016-04-29 9:45 ` Dong Aisheng
2016-04-29 9:55 ` Dong Aisheng
2016-04-29 9:55 ` Dong Aisheng
2016-04-29 12:31 ` Lucas Stach
2016-04-29 12:31 ` Lucas Stach
2016-04-30 2:04 ` Stefan Agner
2016-04-30 2:04 ` Stefan Agner
2016-06-02 15:19 ` Dong Aisheng
2016-06-02 15:19 ` Dong Aisheng
2016-05-25 21:54 ` [PATCH 1/2] clk: imx: do not sleep if IRQ's are still disabled Stefan Agner
2016-05-25 21:54 ` Stefan Agner
2016-06-02 14:59 ` Dong Aisheng
2016-06-02 14:59 ` Dong Aisheng
2016-06-06 13:20 ` Thomas Gleixner
2016-06-06 13:20 ` Thomas Gleixner
2016-06-07 7:04 ` Dong Aisheng
2016-06-07 7:04 ` Dong Aisheng
2016-06-09 20:08 ` Thomas Gleixner
2016-06-09 20:08 ` Thomas Gleixner
2016-06-09 22:14 ` Stefan Agner
2016-06-09 22:14 ` Stefan Agner
2016-06-09 22:55 ` Thomas Gleixner
2016-06-09 22:55 ` Thomas Gleixner
2016-06-12 12:24 ` Dong Aisheng
2016-06-12 12:24 ` Dong Aisheng
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