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Date: Sat, 20 Feb 2021 13:29:46 +0800
From: Liu Ying <victor.liu@....com>
To: Guido Günther <agx@...xcpu.org>,
Kishon Vijay Abraham I <kishon@...com>,
Shawn Guo <shawnguo@...nel.org>,
Sascha Hauer <s.hauer@...gutronix.de>,
Pengutronix Kernel Team <kernel@...gutronix.de>,
Fabio Estevam <festevam@...il.com>,
NXP Linux Team <linux-imx@....com>,
Robert Chiras <robert.chiras@....com>,
Sam Ravnborg <sam@...nborg.org>, linux-kernel@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v3 0/1] phy: fsl-imx8-mipi-dphy: Hook into runtime pm
Hi Guido,
On Fri, 2021-02-19 at 10:38 +0100, Guido Günther wrote:
> Hi,
> On Wed, Dec 16, 2020 at 07:22:32PM +0100, Guido Günther 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?
I cannot find patch 1/1 of v3 in my mailbox, so I'll provide comment on
v2.
Regards,
Liu Ying
> 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@...oc@0:bus@...00000/30a00300.dphy unsupported
> > /devices/platform/soc@...oc@0:bus@...00000/30a00000.mipi_dsi suspended
> >
> > after:
> >
> > mipi off-0
> > /devices/platform/soc@...oc@0:bus@...00000/30a00300.dphy suspended
> > /devices/platform/soc@...oc@0:bus@...00000/30a00000.mipi_dsi suspended
> >
> > Changes from v1:
> > - Tweak commit message slightly
> >
> > Changes from v2:
> > - As pre review comment by Lucas Stach
> > https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Flore.kernel.org%2Flinux-arm-kernel%2Fee22b072e0abe07559a3e6a63ccf6ece064a46cb.camel%40pengutronix.de%2F&data=04%7C01%7Cvictor.liu%40nxp.com%7Ccac0b14c892c4a35340508d8d4ba2e16%7C686ea1d3bc2b4c6fa92cd99c5c301635%7C0%7C0%7C637493243396909710%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=PU5kegolJwKK%2BQ7nD7V9qjrKJ2fJ9eKoySoFihnFoD8%3D&reserved=0
> > Check for pm_runtime_get_sync failure
> >
> > Guido Günther (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@...ts.infradead.org
> > https://eur01.safelinks.protection.outlook.com/?url=http%3A%2F%2Flists.infradead.org%2Fmailman%2Flistinfo%2Flinux-arm-kernel&data=04%7C01%7Cvictor.liu%40nxp.com%7Ccac0b14c892c4a35340508d8d4ba2e16%7C686ea1d3bc2b4c6fa92cd99c5c301635%7C0%7C0%7C637493243396909710%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=kkC3Go0wvHemjxaKVHwU%2F6gWRsgVOFoVz7QEHB7Zqx0%3D&reserved=0
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