linux-kernel - Re: [RESEND PATCH 0/4] drm/meson: power domain init related fixes

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Date:   Fri, 08 Dec 2017 10:04:20 +0100
From:   Jerome Brunet <jbrunet@...libre.com>
To:     Neil Armstrong <narmstrong@...libre.com>, airlied@...ux.ie
Cc:     dri-devel@...ts.freedesktop.org, linux-amlogic@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [RESEND PATCH 0/4] drm/meson: power domain init related fixes

On Wed, 2017-12-06 at 12:54 +0100, Neil Armstrong wrote:
> On the Amlogic Gx SoCs (GXBB, GXL & GXM), the VPU power domain is initialized
> by the vendor U-Boot code, but running mainline U-boot has been possible
> on these SoCs. But lacking such init made the system lock at kernel boot.
> 
> A PM Power Domain driver has been pushed at [1] to solve the main issue.
> The following patches :
> - updates the DT bindings accordingly
> - adds support for missing regulators and registers init
> 
> Neil Armstrong (4):
>   dt-bindings: display: amlogic,meson-vpu: Add optional power domain
>     property
>   dt-bindings: display: amlogic,meson-dw-hdmi: Add optional HDMI 5V
>     regulator
>   drm/meson: dw_hdmi: Add support for an optional external 5V regulator
>   drm/meson: Add missing VPU init
> 
>  .../devicetree/bindings/display/amlogic,meson-dw-hdmi.txt   |  4 ++++
>  .../devicetree/bindings/display/amlogic,meson-vpu.txt       |  4 ++++
>  drivers/gpu/drm/meson/meson_drv.c                           |  9 +++++++++
>  drivers/gpu/drm/meson/meson_dw_hdmi.c                       | 13
> +++++++++++++
>  drivers/gpu/drm/meson/meson_registers.h                     |  4 ++++
>  5 files changed, 34 insertions(+)
> 

No dependencies on the bootloader anymore, this is great ! Thanks 
Series tested on libretech-cc s905x

Tested-by: Jerome Brunet <jbrunet@...libre.com>
Reviewed-by: Jerome Brunet <jbrunet@...libre.com>