Messages in this thread | | | Date | Fri, 24 May 2013 09:40:07 -0600 | From | Stephen Warren <> | Subject | Re: [PATCH] regmap: Make regmap-mmio usable from atomic contexts |
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On 05/24/2013 02:29 AM, Lars-Peter Clausen wrote: > regmap-mmio uses a spinlock with spin_lock() and spin_unlock() for locking. > To be able to use the regmap API from different contexts (atomic vs non-atomic), > without the risk of race conditions, we need to use spin_lock_irqsave() and > spin_lock_irqrestore() instead. A new field, the spinlock_flags field, is added > to regmap struct to store the flags between regmap_{,un}lock_spinlock(). The > spinlock_flags field itself is also protected by the spinlock.
Reviewed-by: Stephen Warren <swarren@nvidia.com>
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