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c19e31d0a3
Simplify the interrupt handling and fix issues:
- The register field view of INTR_EN / INTR_STATUS is different
among IP versions. The global macro DENALI_IRQ_ALL is hard-coded
for Intel platforms. The interrupt mask should be determined at
run-time depending on the running platform.
- wait_for_irq() loops do {} while() until interested flags are
asserted. The logic can be simplified.
- The spin_lock() guard seems too complex (and suspicious in a race
condition if wait_for_completion_timeout() bails out by timeout).
- denali->complete is reused again and again, but reinit_completion()
is missing. Add it.
Re-work the code to make it more robust and easier to handle.
While we are here, also rename the jump label "failed_req_irq" to
more appropriate "disable_irq".
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
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