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video: tegra: host: gk20a: reorder free_irq

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Free IRQs before the various subunits are suspended. This is to prevent
potential races between the IRQ thread and the suspend routine.

Bug 1437749

Change-Id: Iffef918feecae0b256be96efd02b01b2677c225d
Signed-off-by: Prashant Malani <pmalani@nvidia.com>
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
This commit is contained in:
Prashant Malani
2014-01-24 12:08:05 -08:00
committed by Dan Willemsen
parent ef4ed26f8b
commit 9727cf87bc
1 changed files with 8 additions and 8 deletions
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16
drivers/gpu/nvgpu/gk20a/gk20a.c
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@@ -755,14 +755,6 @@ static int gk20a_pm_prepare_poweroff(struct device *_dev)
if (!g->power_on)
return 0;
ret |= gk20a_channel_suspend(g);
/* disable elpg before gr or fifo suspend */
ret |= gk20a_pmu_destroy(g);
ret |= gk20a_gr_suspend(g);
ret |= gk20a_mm_suspend(g);
ret |= gk20a_fifo_suspend(g);
/*
* After this point, gk20a interrupts should not get
* serviced.
@@ -773,6 +765,14 @@ static int gk20a_pm_prepare_poweroff(struct device *_dev)
g->irq_requested = false;
}
ret |= gk20a_channel_suspend(g);
/* disable elpg before gr or fifo suspend */
ret |= gk20a_pmu_destroy(g);
ret |= gk20a_gr_suspend(g);
ret |= gk20a_mm_suspend(g);
ret |= gk20a_fifo_suspend(g);
/* Disable GPCPLL */
ret |= gk20a_suspend_clk_support(g);
g->power_on = false;