From mboxrd@z Thu Jan 1 00:00:00 1970 From: lee.jones@linaro.org (Lee Jones) Date: Tue, 3 Jan 2017 17:49:06 +0000 Subject: [PATCH v3 4/6] mfd: dt: Add bindings for the Aspeed LPC Host Controller (LHC) In-Reply-To: <20161206025321.1792-5-andrew@aj.id.au> References: <20161206025321.1792-1-andrew@aj.id.au> <20161206025321.1792-5-andrew@aj.id.au> Message-ID: <20170103174906.GB27589@dell> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Tue, 06 Dec 2016, Andrew Jeffery wrote: > The LPC bus pinmux configuration on fifth generation Aspeed SoCs depends > on bits in both the System Control Unit and the LPC Host Controller. > > The Aspeed LPC Host Controller is described as a child node of the > LPC host-range syscon device for arbitration of access by the host > controller and pinmux drivers. > > Signed-off-by: Andrew Jeffery Applied with Acks, thanks. > --- > .../devicetree/bindings/mfd/aspeed-lpc.txt | 22 ++++++++++++++++++++++ > 1 file changed, 22 insertions(+) > > diff --git a/Documentation/devicetree/bindings/mfd/aspeed-lpc.txt b/Documentation/devicetree/bindings/mfd/aspeed-lpc.txt > index a97131aba446..9de318ef72da 100644 > --- a/Documentation/devicetree/bindings/mfd/aspeed-lpc.txt > +++ b/Documentation/devicetree/bindings/mfd/aspeed-lpc.txt > @@ -109,3 +109,25 @@ lpc: lpc at 1e789000 { > }; > }; > > +Host Node Children > +================== > + > +LPC Host Controller > +------------------- > + > +The Aspeed LPC Host Controller configures the Low Pin Count (LPC) bus behaviour > +between the host and the baseboard management controller. The registers exist > +in the "host" portion of the Aspeed LPC controller, which must be the parent of > +the LPC host controller node. > + > +Required properties: > +- compatible: "aspeed,ast2500-lhc"; > +- reg: contains offset/length value of the LHC memory > + region. > + > +Example: > + > +lhc: lhc at 20 { > + compatible = "aspeed,ast2500-lhc"; > + reg = <0x20 0x24 0x48 0x8>; > +}; -- Lee Jones Linaro STMicroelectronics Landing Team Lead Linaro.org ? Open source software for ARM SoCs Follow Linaro: Facebook | Twitter | Blog