linux-kernel - Re: [PATCH v2 0/4] iommu/rockchip: Runtime PM fixes

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Date:   Fri, 24 Aug 2018 08:50:59 -0700
From:   Olof Johansson <olof@...om.net>
To:     Marc Zyngier <marc.zyngier@....com>
Cc:     linux-arm-kernel@...ts.infradead.org,
        linux-rockchip@...ts.infradead.org,
        iommu@...ts.linux-foundation.org, linux-kernel@...r.kernel.org,
        Joerg Roedel <joro@...tes.org>,
        Heiko Stuebner <heiko@...ech.de>,
        Jeffy Chen <jeffy.chen@...k-chips.com>, arm@...nel.org
Subject: Re: [PATCH v2 0/4] iommu/rockchip: Runtime PM fixes

On Fri, Aug 24, 2018 at 04:06:33PM +0100, Marc Zyngier wrote:
> This small series addresses a couple of runtime PM issues I've spotted
> while running 4.18 on a Chromebook Plus (kevin, rk3399) platform, and
> specifically doing kexec.
> 
> In order to avoid making a complete mess of the IOMMU code, Heiko has
> requested that all RK platforms would select CONFIG_PM, which
> simplifies a lot of things. I've kept 32 and 64bit patches separate,
> but feel free to squash them into on if that's more convenient.
> 
> Note that even with these patches, kexec is still fairly broken on
> rk3399, as the VOP is never turned off (see [1] for a fix).
> 
> [1] https://www.spinics.net/lists/arm-kernel/msg670229.html
> 
> * From v1:
>   - Collected RBs from Heiko
>   - Added two patches forcing CONFIG_PM on all Rockchip platforms at
>     Heiko's request, following the example set by Tegra platforms.

Thanks, applied to our next/late branch which I plan to send in tomorrow.


-Olof