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From: Rob Herring <robh@kernel.org>
To: Nishanth Menon <nm@ti.com>
Cc: Kishon Vijay Abraham I <kishon@ti.com>,
	Lee Jones <lee.jones@linaro.org>,
	Bjorn Helgaas <bhelgaas@google.com>,
	Tero Kristo <t-kristo@ti.com>, Roger Quadros <rogerq@ti.com>,
	devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-pci@vger.kernel.org, linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH 8/8] arm64: dts: ti: k3-j721e-main: Fix PCIe maximum outbound regions
Date: Thu, 5 Nov 2020 10:53:31 -0600	[thread overview]
Message-ID: <20201105165331.GA55814@bogus> (raw)
In-Reply-To: <20201102164137.ntl3v6gu274ek2r2@gauze>

On Mon, Nov 02, 2020 at 10:41:37AM -0600, Nishanth Menon wrote:
> On 15:41-20201102, Kishon Vijay Abraham I wrote:
> > PCIe controller in J721E supports a maximum of 32 outbound regions.
> > commit 4e5833884f66 ("arm64: dts: ti: k3-j721e-main: Add PCIe device tree
> > nodes") incorrectly added maximum number of outbound regions to 16. Fix
> > it here.
> > 
> > Fixes: 4e5833884f66 ("arm64: dts: ti: k3-j721e-main: Add PCIe device tree nodes")
> > Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
> > ---
> >  arch/arm64/boot/dts/ti/k3-j721e-main.dtsi | 8 ++++----
> >  1 file changed, 4 insertions(+), 4 deletions(-)
> > 
> > diff --git a/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi b/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi
> > index e2a96b2c423c..61b533130ed1 100644
> > --- a/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi
> > +++ b/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi
> > @@ -652,7 +652,7 @@
> >  		power-domains = <&k3_pds 239 TI_SCI_PD_EXCLUSIVE>;
> >  		clocks = <&k3_clks 239 1>;
> >  		clock-names = "fck";
> > -		cdns,max-outbound-regions = <16>;
> > +		cdns,max-outbound-regions = <32>;

Can this be made detectable instead? Write to region registers and check 
the write sticks? I'm doing this for the DWC controller.

Or make the property optional with the default being the max (32).

Rob

  parent reply	other threads:[~2020-11-05 16:53 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-11-02 10:11 [PATCH 0/8] J7200: Add PCIe DT nodes to Enable PCIe Kishon Vijay Abraham I
2020-11-02 10:11 ` [PATCH 1/8] dt-bindings: mfd: ti,j721e-system-controller.yaml: Document "pcie-ctrl" Kishon Vijay Abraham I
2020-11-05 16:54   ` Rob Herring
2020-11-09 14:17     ` Kishon Vijay Abraham I
2020-11-02 10:11 ` [PATCH 2/8] dt-bindings: PCI: Add host mode dt-bindings for TI's J7200 SoC Kishon Vijay Abraham I
2020-11-05 16:56   ` Rob Herring
2020-11-02 10:11 ` [PATCH 3/8] dt-bindings: PCI: Add EP " Kishon Vijay Abraham I
2020-11-05 16:56   ` Rob Herring
2020-11-02 10:11 ` [PATCH 4/8] arm64: dts: ti: k3-j7200-main: Add DT for WIZ and SERDES Kishon Vijay Abraham I
2020-11-02 10:11 ` [PATCH 5/8] arm64: dts: ti: k3-j7200-main: Add PCIe device tree node Kishon Vijay Abraham I
2020-11-02 10:11 ` [PATCH 6/8] arm64: dts: ti: k3-j7200-common-proc-board: Enable SERDES0 Kishon Vijay Abraham I
2020-11-02 10:11 ` [PATCH 7/8] arm64: dts: ti: k3-j7200-common-proc-board: Enable PCIe Kishon Vijay Abraham I
2020-11-02 10:11 ` [PATCH 8/8] arm64: dts: ti: k3-j721e-main: Fix PCIe maximum outbound regions Kishon Vijay Abraham I
2020-11-02 16:41   ` Nishanth Menon
2020-11-03  2:18     ` Kishon Vijay Abraham I
2020-11-05 16:53     ` Rob Herring [this message]
2020-11-06 15:10       ` Kishon Vijay Abraham I

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