drm/rockchip: Don't use spin_lock_irqsave in interrupt context
The rockchip DRM driver is quite careful to disable interrupts when taking a lock that is also taken in interrupt context, which is a good thing. What is a bit over the top is to use spin_lock_irqsave when already in interrupt context, as you cannot take another interrupt again, and disabling interrupt is just pure overhead. Switching to the non _irqsave version in interrupt context is more logical, and less heavy handed. Signed-off-by:Marc Zyngier <marc.zyngier@arm.com> Signed-off-by:
Heiko Stuebner <heiko@sntech.de> Link: https://patchwork.freedesktop.org/patch/msgid/20180220130120.5254-4-marc.zyngier@arm.com
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