Messages in this thread | | | Date | Tue, 25 Aug 2015 23:51:50 +0200 (CEST) | From | Thomas Gleixner <> | Subject | Re: [PATCH] drivers: i2c: exynos5: irq spinlock rt-safe |
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On Tue, 25 Aug 2015, Anders Roxell wrote:
> The exynos5_i2c_message_start enables interrupts while holding the i2c > lock which is sought by the irq handler. If an IRQ is received before > this lock is released then a deadlock occurs.
That's crap. The interrupt handler runs in an irq thread as RT forces all normal interrupts to that.
Thanks,
tglx
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