LKML Archive on lore.kernel.org
help / color / mirror / Atom feed
From: Leonard Crestez <leonard.crestez@nxp.com>
To: Shawn Guo <shawnguo@kernel.org>,
	Lucas Stach <l.stach@pengutronix.de>,
	Richard Zhu <hongxing.zhu@nxp.com>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.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: [PATCH v2 0/4] ARM: dts: imx6sx: Add DISPLAY power domain support
Date: Mon, 8 Oct 2018 18:06:18 +0000	[thread overview]
Message-ID: <cover.1539020938.git.leonard.crestez@nxp.com> (raw)

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(-)

-- 
2.17.1


             reply	other threads:[~2018-10-08 18:06 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-10-08 18:06 Leonard Crestez [this message]
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 ` [PATCH v2 0/4] " Lorenzo Pieralisi

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=cover.1539020938.git.leonard.crestez@nxp.com \
    --to=leonard.crestez@nxp.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=linux-imx@nxp.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-pci@vger.kernel.org \
    --cc=linux-pm@vger.kernel.org \
    --cc=lorenzo.pieralisi@arm.com \
    --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).