From: Anatolij Gustschin <agust@denx.de>
To: u-boot@lists.denx.de
Subject: [PATCH] Revert "dm: core: device: switch off power domain after device removal"
Date: Mon, 17 Feb 2020 12:53:36 +0100 [thread overview]
Message-ID: <20200217125336.39990b93@crub> (raw)
In-Reply-To: <20200217091036.19028-1-narmstrong@baylibre.com>
On Mon, 17 Feb 2020 10:10:36 +0100
Neil Armstrong narmstrong at baylibre.com wrote:
> This commit breaks Linux boot on Amlogic libretech-cc, libretech-ac, sei510,
> sei610 board by automatically disabling the power domain after device removal.
> This because the power domain associated to the video driver must be kept
> enabled for linux to boot.
>
> The only way is to use the introduced flag DM_FLAG_DEFAULT_PD_CTRL_OFF, which
> removes automatic handling of power domain.
> This flag is not a complete solution since it will force reverting to manually
> enable the power domain from the driver probe.
>
> Instead a flag to keep the power domain enabled after removal should be
> introduced.
>
> In the meantime revert this commit until a proper solution is found.
>
> This reverts commit 52edfed65de967a86983a55c51ba0727090efc43.
>
> Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
> ---
> Hi Simon, Tom,
>
> This revert is the simplest fix to make the boards boot again on v2020.04,
> the goal is to make this behavior happen again with a proper flag to keep the
> power domain enabled on specific drivers.
>
> I can push it on my next PR on my branch, is it ok ?
Please test if these two patches fix the problem:
http://patchwork.ozlabs.org/patch/1239143
http://patchwork.ozlabs.org/patch/1239144
--
Anatolij
next prev parent reply other threads:[~2020-02-17 11:53 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-17 9:10 [PATCH] Revert "dm: core: device: switch off power domain after device removal" Neil Armstrong
2020-02-17 11:53 ` Anatolij Gustschin [this message]
2020-02-17 16:04 ` Neil Armstrong
2020-03-02 9:30 ` Neil Armstrong
2020-03-02 20:07 ` Anatolij Gustschin
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