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Message-ID: <9e4ac0b88190312c19709b6253aad7eca203580c.camel@nxp.com> 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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