LKML Archive on lore.kernel.org
help / color / mirror / Atom feed
From: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
To: Leonard Crestez <leonard.crestez@nxp.com>
Cc: Shawn Guo <shawnguo@kernel.org>,
	Lucas Stach <l.stach@pengutronix.de>,
	Richard Zhu <hongxing.zhu@nxp.com>,
	Fabio Estevam <fabio.estevam@nxp.com>,
	Stefan Agner <stefan@agner.ch>, Marek Vasut <marex@denx.de>,
	Ulf Hansson <ulf.hansson@linaro.org>,
	Rob Herring <robh+dt@kernel.org>,
	Mark Rutland <mark.rutland@arm.com>,
	"linux-pm@vger.kernel.org" <linux-pm@vger.kernel.org>,
	"devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
	"linux-pci@vger.kernel.org" <linux-pci@vger.kernel.org>,
	"dri-devel@lists.freedesktop.org"
	<dri-devel@lists.freedesktop.org>,
	dl-linux-imx <linux-imx@nxp.com>,
	"kernel@pengutronix.de" <kernel@pengutronix.de>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v2 0/4] ARM: dts: imx6sx: Add DISPLAY power domain support
Date: Tue, 20 Nov 2018 12:34:58 +0000	[thread overview]
Message-ID: <20181120123458.GA22597@e107981-ln.cambridge.arm.com> (raw)
In-Reply-To: <cover.1539020938.git.leonard.crestez@nxp.com>

On Mon, Oct 08, 2018 at 06:06:18PM +0000, Leonard Crestez wrote:
> Now that mxsfb has functional runtime_pm support we can enable power
> gating for the DISPLAY power domain on imx6sx.
> 
> Since pci-imx doesn't support runtime power gating this is still
> always-on unless PCI is disabled/unused. But it's reasonable for an imx
> board to not have PCI.
> 
> The current pd_pcie is actually only for PCIE_PHY, the PCIE ip block is
> actually inside the DISPLAY domain. This is handled by adding the pcie
> node in both power domains, using multi-pd support.
> 
> Series is against linux-next. The last patch needs runtime PM in all
> drivers or it will cause hangs. This means Shawn should hold back on it
> until the PCI and mxsfb dependencies get merged (both might take a long
> time). So you can just review that patch and I will resend it later,
> perhaps in another cycle.
> 
> ---
> 
> Changes since v1:
> * Document multi-pd in imx6q-pcie bindings and add DT list
> * Don't refer to "DISPLAY" as "DISPMIX" because the Reference Manual
> doesn't do that.
> * Link to v1: https://lore.kernel.org/patchwork/cover/994092/
> 
> This is independent of other imx6-pci PM patches such as this one:
> * https://lore.kernel.org/patchwork/patch/996806/
> Device links are quite nice!
> 
> Link to mxsfb thread: https://lkml.org/lkml/2018/9/26/1185
> 
> Leonard Crestez (4):
>   soc: imx: gpc: Increase GPC_CLK_MAX to 7
>   dt-bindings: imx6q-pcie: Add multi-pd bindings for imx6sx
>   PCI: imx: Add multi-pd support
>   ARM: dts: imx6sx: Add DISPLAY power domain support
> 
>  .../bindings/pci/fsl,imx6q-pcie.txt           |  4 +-
>  arch/arm/boot/dts/imx6sx.dtsi                 | 19 +++++++-
>  drivers/pci/controller/dwc/pci-imx6.c         | 48 +++++++++++++++++++
>  drivers/soc/imx/gpc.c                         |  2 +-
>  4 files changed, 70 insertions(+), 3 deletions(-)

As agreed with Shawn, I have applied patches 2-3 to pci/dwc for v4.21,
thanks.

Lorenzo

      parent reply	other threads:[~2018-11-20 12:35 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-10-08 18:06 Leonard Crestez
2018-10-08 18:06 ` [PATCH v2 1/4] soc: imx: gpc: Increase GPC_CLK_MAX to 7 Leonard Crestez
2018-10-31  6:09   ` Shawn Guo
2018-10-08 18:06 ` [PATCH v2 2/4] dt-bindings: imx6q-pcie: Add multi-pd bindings for imx6sx Leonard Crestez
2018-10-12 22:09   ` Rob Herring
2018-10-08 18:06 ` [PATCH v2 3/4] PCI: imx: Add multi-pd support Leonard Crestez
2018-11-16 12:25   ` Lorenzo Pieralisi
2018-11-19 11:38     ` Shawn Guo
2018-10-08 18:06 ` [PATCH v2 4/4] ARM: dts: imx6sx: Add DISPLAY power domain support Leonard Crestez
2018-10-31  6:11   ` Shawn Guo
2018-10-31 12:17     ` Leonard Crestez
2018-10-31 15:05       ` Lorenzo Pieralisi
2018-11-03 15:54         ` Leonard Crestez
2018-11-04  3:54       ` Shawn Guo
2018-11-20 12:34 ` Lorenzo Pieralisi [this message]

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20181120123458.GA22597@e107981-ln.cambridge.arm.com \
    --to=lorenzo.pieralisi@arm.com \
    --cc=devicetree@vger.kernel.org \
    --cc=dri-devel@lists.freedesktop.org \
    --cc=fabio.estevam@nxp.com \
    --cc=hongxing.zhu@nxp.com \
    --cc=kernel@pengutronix.de \
    --cc=l.stach@pengutronix.de \
    --cc=leonard.crestez@nxp.com \
    --cc=linux-imx@nxp.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-pci@vger.kernel.org \
    --cc=linux-pm@vger.kernel.org \
    --cc=marex@denx.de \
    --cc=mark.rutland@arm.com \
    --cc=robh+dt@kernel.org \
    --cc=shawnguo@kernel.org \
    --cc=stefan@agner.ch \
    --cc=ulf.hansson@linaro.org \
    --subject='Re: [PATCH v2 0/4] ARM: dts: imx6sx: Add DISPLAY power domain support' \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).