From: "Guido Günther" <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, Liu Ying <victor.liu@nxp.com> Subject: [PATCH v4 0/1] phy: fsl-imx8-mipi-dphy: Hook into runtime pm Date: Mon, 22 Feb 2021 19:38:10 +0100 [thread overview] Message-ID: <cover.1614019053.git.agx@sigxcpu.org> (raw) 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. 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 per review comment by Lucas Stach https://lore.kernel.org/linux-arm-kernel/ee22b072e0abe07559a3e6a63ccf6ece064a46cb.camel@pengutronix.de/ Check for pm_runtime_get_sync failure Changes from v3: - As per review comment by Liu Ying https://lore.kernel.org/linux-arm-kernel/424af315b677934fe6a91cee5a0a7aee058245a9.camel@nxp.com/ https://lore.kernel.org/linux-arm-kernel/a98f7531b9d0293d3c89174446f742d4199cb27c.camel@nxp.com/ - Use phy layers runtime pm - simplify mixel_dphy_remove Guido Günther (1): phy: fsl-imx8-mipi-dphy: Hook into runtime pm drivers/phy/freescale/phy-fsl-imx8-mipi-dphy.c | 10 ++++++++++ 1 file changed, 10 insertions(+) -- 2.30.0
WARNING: multiple messages have this Message-ID (diff)
From: "Guido Günther" <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, Liu Ying <victor.liu@nxp.com> Subject: [PATCH v4 0/1] phy: fsl-imx8-mipi-dphy: Hook into runtime pm Date: Mon, 22 Feb 2021 19:38:10 +0100 [thread overview] Message-ID: <cover.1614019053.git.agx@sigxcpu.org> (raw) 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. 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 per review comment by Lucas Stach https://lore.kernel.org/linux-arm-kernel/ee22b072e0abe07559a3e6a63ccf6ece064a46cb.camel@pengutronix.de/ Check for pm_runtime_get_sync failure Changes from v3: - As per review comment by Liu Ying https://lore.kernel.org/linux-arm-kernel/424af315b677934fe6a91cee5a0a7aee058245a9.camel@nxp.com/ https://lore.kernel.org/linux-arm-kernel/a98f7531b9d0293d3c89174446f742d4199cb27c.camel@nxp.com/ - Use phy layers runtime pm - simplify mixel_dphy_remove Guido Günther (1): phy: fsl-imx8-mipi-dphy: Hook into runtime pm drivers/phy/freescale/phy-fsl-imx8-mipi-dphy.c | 10 ++++++++++ 1 file changed, 10 insertions(+) -- 2.30.0 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next reply other threads:[~2021-02-22 18:39 UTC|newest] Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-02-22 18:38 Guido Günther [this message] 2021-02-22 18:38 ` [PATCH v4 0/1] phy: fsl-imx8-mipi-dphy: Hook into runtime pm Guido Günther 2021-02-22 18:38 ` [PATCH v4 1/1] " Guido Günther 2021-02-22 18:38 ` Guido Günther 2021-02-23 2:36 ` Liu Ying 2021-02-23 2:36 ` Liu Ying 2021-02-23 2:54 ` Liu Ying 2021-02-23 2:54 ` Liu Ying
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