[PATCH v2 0/2] drm/rockchip: try to fix vblank hang resulting from iommu irq change

Ezequiel Garcia ezequiel at collabora.com
Wed May 30 17:18:18 UTC 2018

On Mon, 2018-05-28 at 15:20 +0200, Heiko Stuebner wrote:
> This still tries to address the hang seen by Ezequiel Garcia on rk3288.
> As Tomasz noted, trying to count enablement can run into concurrency
> issues, so instead we'll just check if the vop is runtime-enabled
> to see if it could be the source of the irq and then just do our
> own clk_enable in the isr to bridge the possible gap between
> pm_runtime_enable and clk_enable in the core vop_enable() function.
> Display tested to still work on rk3328 and rk3399, but as I don't see
> the hang from Ezequiel I hope that this fixes it.

Yup, this series fixes the issue I reported. Thanks for fixing so quickly.

Tested-by: Ezequiel Garcia <ezequiel at collabora.com>

BTW, don't the patches need some stable tags as well?


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