Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18;
Date:   Fri, 19 Feb 2021 10:38:53 +0100
From:   Guido =?iso-8859-1?Q?G=FCnther?= <agx@sigxcpu.org>
To:     Kishon Vijay Abraham I <kishon@ti.com>,
        Shawn Guo <shawnguo@kernel.org>,
        Sascha Hauer <s.hauer@pengutronix.de>,
        Pengutronix Kernel Team <kernel@pengutronix.de>,
        Fabio Estevam <festevam@gmail.com>,
        NXP Linux Team <linux-imx@nxp.com>,
        Robert Chiras <robert.chiras@nxp.com>,
        Sam Ravnborg <sam@ravnborg.org>, linux-kernel@vger.kernel.org,
        linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v3 0/1] phy: fsl-imx8-mipi-dphy: Hook into runtime pm
Message-ID: <YC+HLW9pw7hFbFrD@bogon.m.sigxcpu.org>
References: <cover.1608142884.git.agx@sigxcpu.org>
MIME-Version: 1.0
Content-Type: text/plain; charset=iso-8859-1
Content-Disposition: inline
Content-Transfer-Encoding: 8bit
In-Reply-To: <cover.1608142884.git.agx@sigxcpu.org>
Precedence: bulk

Hi,
On Wed, Dec 16, 2020 at 07:22:32PM +0100, Guido G?nther wrote:
> This allows us to shut down the mipi power domain on the imx8. The alternative
> would be to drop the dphy from the mipi power domain in the SOCs device tree
> and only have the DSI host controller visible there but since the PD is mostly
> about the PHY that would defeat it's purpose.

Is there anything I can do to move that forward. I assume this needs to
go via the phy/ subsystem not drm?
Cheers,
 -- Guido

> 
> This is basically a resend from February 2020 which went without feedback.
> 
> This allows to shut off the power domain hen blanking the LCD panel:
> 
> pm_genpd_summary before:
> 
> domain                          status          slaves
>     /device                                             runtime status
> ----------------------------------------------------------------------
> mipi                            on
>     /devices/platform/soc@0/soc@0:bus@30800000/30a00300.dphy  unsupported
>     /devices/platform/soc@0/soc@0:bus@30800000/30a00000.mipi_dsi  suspended
> 
> after:
> 
> mipi                            off-0
>     /devices/platform/soc@0/soc@0:bus@30800000/30a00300.dphy  suspended
>     /devices/platform/soc@0/soc@0:bus@30800000/30a00000.mipi_dsi  suspended
> 
> Changes from v1:
>  - Tweak commit message slightly
> 
> Changes from v2:
>   - As pre review comment by Lucas Stach
>     https://lore.kernel.org/linux-arm-kernel/ee22b072e0abe07559a3e6a63ccf6ece064a46cb.camel@pengutronix.de/
>     Check for pm_runtime_get_sync failure
> 
> Guido G?nther (1):
>   phy: fsl-imx8-mipi-dphy: Hook into runtime pm
> 
>  .../phy/freescale/phy-fsl-imx8-mipi-dphy.c    | 25 ++++++++++++++++++-
>  1 file changed, 24 insertions(+), 1 deletion(-)
> 
> -- 
> 2.29.2
> 
> 
> _______________________________________________
> linux-arm-kernel mailing list
> linux-arm-kernel@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel