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authorThomas Gleixner <tglx@linutronix.de>2014-03-08 08:59:58 +0100
committerThomas Gleixner <tglx@linutronix.de>2014-03-12 16:00:24 +0100
commitc1bacbae8192dd2a9ebadd22d793b68054f6c6e5 (patch)
treea2d402e83d75c77a390e47c0150078230bc0101a /arch/sh
parentfa389e220254c69ffae0d403eac4146171062d08 (diff)
genirq: Provide irq_request/release_resources chip callbacks
For certain irq types, e.g. gpios, it's necessary to request resources before starting up the irq. This might fail so we cannot use the irq_startup() callback because we might call the irq_set_type() callback before that which does not make sense when the resource is not available. Calling irq_startup() before irq_set_type() can lead to spurious interrupts which is not desired either. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Jean-Jacques Hiblot <jjhiblot@traphandler.com> Cc: Grant Likely <grant.likely@linaro.org> Cc: linux-arm-kernel@lists.infradead.org Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Link: http://lkml.kernel.org/r/alpine.DEB.2.02.1403080857160.18573@ionos.tec.linutronix.de Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/sh')
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