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Groups > linux.kernel > #1380457 > unrolled thread
| Started by | Stephen Boyd <sboyd@codeaurora.org> |
|---|---|
| First post | 2016-04-16 03:10 +0200 |
| Last post | 2016-04-18 04:00 +0200 |
| Articles | 2 — 2 participants |
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Re: [PATCH 1/2] clk: imx: do not sleep if IRQ's are still disabled Stephen Boyd <sboyd@codeaurora.org> - 2016-04-16 03:10 +0200
Re: [PATCH 1/2] clk: imx: do not sleep if IRQ's are still disabled Shawn Guo <shawnguo@kernel.org> - 2016-04-18 04:00 +0200
| From | Stephen Boyd <sboyd@codeaurora.org> |
|---|---|
| Date | 2016-04-16 03:10 +0200 |
| Subject | Re: [PATCH 1/2] clk: imx: do not sleep if IRQ's are still disabled |
| Message-ID | <romUi-3Jk-1@gated-at.bofh.it> |
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
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| From | Shawn Guo <shawnguo@kernel.org> |
|---|---|
| Date | 2016-04-18 04:00 +0200 |
| Message-ID | <rp6DM-5xU-3@gated-at.bofh.it> |
| In reply to | #1380457 |
On Fri, Apr 15, 2016 at 06:00:53PM -0700, Stephen Boyd wrote: > 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. Yes, I'm picking them up. Shawn
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