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From: Shawn Guo <shawnguo@kernel.org>
To: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Leonard Crestez <leonard.crestez@nxp.com>,
	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 3/4] PCI: imx: Add multi-pd support
Date: Mon, 19 Nov 2018 19:38:18 +0800	[thread overview]
Message-ID: <20181119113816.GP5829@dragon> (raw)
In-Reply-To: <20181116122541.GD3228@e107981-ln.cambridge.arm.com>

On Fri, Nov 16, 2018 at 12:25:41PM +0000, Lorenzo Pieralisi wrote:
> On Mon, Oct 08, 2018 at 06:06:21PM +0000, Leonard Crestez wrote:
> > On some chips the PCIE and PCIE_PHY blocks are in separate power domains
> > which can be power-gated independently. The pci driver needs to handle
> > this by keeping both domain active.
> > 
> > This is intended for imx6sx where PCIE is in DISPLAY and PCIE_PHY in
> > it's own domain. Defining the DISPLAY domain requires a way for pcie to
> > keep it active or it will break when displays are off.
> > 
> > The power-domains on imx6sx are meant to look like this:
> > 	power-domains = <&pd_disp>, <&pd_pci>;
> > 	power-domain-names = "pcie", "pcie_phy";
> > 
> > Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
> > Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
> > ---
> >  drivers/pci/controller/dwc/pci-imx6.c | 48 +++++++++++++++++++++++++++
> >  1 file changed, 48 insertions(+)
> 
> I expect Shawn to pick the whole series up and therefore I am dropping
> this series from the PCI tree.

Lorenzo,

I think the best approach is that you send patch #2 and #3 for 4.21
through PCI tree, and we will be able to apply patch #4 in 4.22
development cycle.

Queuing patch #3 on IMX tree will stands a good chance for conflicts
with other pci-imx6.c changes on PCI tree.

Shawn

  reply	other threads:[~2018-11-19 11:38 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 [this message]
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

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