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drm/arm/hdlcd: Simplify IRQ install/uninstall
Since we no longer need to conform to the structure of the various DRM IRQ callbacks, we can streamline the code by consolidating the piecemeal functions and passing around our private data structure directly. We're also a platform device so should never see IRQ_NOTCONNECTED either. Furthermore we can also get rid of all the unnecesary read-modify-write operations, since on install we know we cleared the whole interrupt mask before enabling the debug IRQs, and thus on uninstall we're always clearing everything as well. Signed-off-by: Robin Murphy <[email protected]> Acked-by: Liviu Dudau <[email protected]> Signed-off-by: Liviu Dudau <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/65cf7818b23c1a8629dc851f1d058ecb8a14849e.1655309413.git.robin.murphy@arm.com
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