From: Leonard Crestez <leonard.crestez@nxp.com>
To: "l.stach@pengutronix.de" <l.stach@pengutronix.de>,
"marex@denx.de" <marex@denx.de>,
Fabio Estevam <fabio.estevam@nxp.com>
Cc: "A.s. Dong" <aisheng.dong@nxp.com>,
dl-linux-imx <linux-imx@nxp.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"stefan@agner.ch" <stefan@agner.ch>,
Laurentiu Palcu <laurentiu.palcu@nxp.com>,
Robert Chiras <robert.chiras@nxp.com>,
Marco Antonio Franchi <marco.franchi@nxp.com>,
"dri-devel@lists.freedesktop.org"
<dri-devel@lists.freedesktop.org>,
"shawnguo@kernel.org" <shawnguo@kernel.org>,
Anson Huang <anson.huang@nxp.com>,
"airlied@linux.ie" <airlied@linux.ie>,
"kernel@pengutronix.de" <kernel@pengutronix.de>,
Mirela Rabulea <mirela.rabulea@nxp.com>
Subject: Re: [RFC 2/2] ARM: dts: imx6sl: Convert gpc to new bindings
Date: Wed, 27 Jun 2018 14:17:32 +0000 [thread overview]
Message-ID: <9213574bccbb62a8055c8840397ab947a8a085f6.camel@nxp.com> (raw)
In-Reply-To: <1528277099.26063.11.camel@pengutronix.de>
On Wed, 2018-06-06 at 11:24 +0200, Lucas Stach wrote:
> Am Dienstag, den 05.06.2018, 20:11 +0300 schrieb Leonard Crestez:
> > With old bindings imx_gpc_onecell_data always sets num_domains to 2 so
> > the DISPMIX domain can't actually be referenced. The pd is still defined
> > and pm core shuts it down as "unused" so display can't work.
> >
> > Converting to new gpc bindings by adding pgc nodes, also reference
> > referencing the newly-defined &pu_disp domain from &lcdif.
> >
> > > Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
> >
> > ---
> > arch/arm/boot/dts/imx6sl.dtsi | 35 ++++++++++++++++++++++++++++++++---
> > 1 file changed, 32 insertions(+), 3 deletions(-)
> >
> > There are erratas regarding dispmix on 6sl so this might be wrong
> >
> > diff --git a/arch/arm/boot/dts/imx6sl.dtsi b/arch/arm/boot/dts/imx6sl.dtsi
> > index ab6a7e2e7e8f..9982874fa39e 100644
> > --- a/arch/arm/boot/dts/imx6sl.dtsi
> > +++ b/arch/arm/boot/dts/imx6sl.dtsi
> > @@ -694,14 +694,42 @@
> > > reg = <0x020dc000 0x4000>;
> > > interrupt-controller;
> > > #interrupt-cells = <3>;
> > > interrupts = <0 89 IRQ_TYPE_LEVEL_HIGH>;
> > > interrupt-parent = <&intc>;
> > > - pu-supply = <®_pu>;
> > > - clocks = <&clks IMX6SL_CLK_GPU2D_OVG>,
> > > - <&clks IMX6SL_CLK_GPU2D_PODF>;
> > > + clocks = <&clks IMX6SL_CLK_IPG>;
> > > + clock-names = "ipg";
> > > #power-domain-cells = <1>;
>
> The above power-domain-cells needs to go away when using the new
> binding.
Yes, I fixed this for next version.
However for imx6sl there is a very nasty errata published and I've been
unable to get confirmation of a fix in later versions so it should
probably receive the PGC_DOMAIN_FLAG_NO_PD treatment.
See ERR006287 in https://www.nxp.com/docs/en/errata/IMX6SLCE.pdf
Any comments on the first patch for mxsfb? It's far more interesting.
next prev parent reply other threads:[~2018-06-27 14:17 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-06-05 17:11 [PATCH 1/2] drm/mxsfb: Fix runtime PM for unpowering lcdif block Leonard Crestez
2018-06-05 17:11 ` [RFC 2/2] ARM: dts: imx6sl: Convert gpc to new bindings Leonard Crestez
2018-06-06 9:24 ` Lucas Stach
2018-06-27 14:17 ` Leonard Crestez [this message]
2018-07-13 10:57 ` [PATCH 1/2] drm/mxsfb: Fix runtime PM for unpowering lcdif block Stefan Agner
2018-07-17 9:54 ` Leonard Crestez
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