[PATCH 0/1] phy: fsl-imx8-mipi-dphy: Hook into runtime pm
Guido Günther
agx at sigxcpu.org
Fri Jun 26 03:07:18 EDT 2020
Hi,
On Tue, Feb 25, 2020 at 04:53:33PM +0100, Guido Günther wrote:
> This allows us to shut down the mipi power domain on the SOC. 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
> (and rely on the phy layer's built in runtime pm handling) but this
> makes the power domain dependency less explicit.
>
> Currently the pm domain can't be shut off when blanking the panel:
Anything I can do to get this applied?
Cheers,
-- Guido
>
> pm_genpd_summary
> domain status slaves
> /device runtime status
> ----------------------------------------------------------------------
> mipi on
> /devices/platform/soc at 0/soc at 0:bus at 30800000/30a00300.dphy unsupported
> /devices/platform/soc at 0/soc at 0:bus at 30800000/30a00000.mipi_dsi suspended
>
> while with this we can shut down the power domain on panel blank:
>
> mipi off-0
> /devices/platform/soc at 0/soc at 0:bus at 30800000/30a00300.dphy suspended
> /devices/platform/soc at 0/soc at 0:bus at 30800000/30a00000.mipi_dsi suspended
>
> This is similar to what drivers/phy/rockchip/phy-rockchip-inno-dsidphy.c
> does.
>
> Patch is against next-20200217
>
> Guido Günther (1):
> phy: fsl-imx8-mipi-dphy: Hook into runtime pm
>
> .../phy/freescale/phy-fsl-imx8-mipi-dphy.c | 22 ++++++++++++++++++-
> 1 file changed, 21 insertions(+), 1 deletion(-)
>
> --
> 2.23.0
>
>
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