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
prev 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 [PATCH v2 0/4] ARM: dts: imx6sx: Add DISPLAY power domain support 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]
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