From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jae Hyun Yoo Date: Tue, 11 Dec 2018 10:39:40 -0800 Subject: [PATCH 2/2] ARM: dts: aspeed: Add KCS support for LPC BMC In-Reply-To: <20181210200753.3018124-3-vijaykhemka@fb.com> References: <20181210200753.3018124-1-vijaykhemka@fb.com> <20181210200753.3018124-3-vijaykhemka@fb.com> Message-ID: <584ddf6f-2e0c-5c1c-df06-bdd37ecd2489@linux.intel.com> List-Id: To: linux-aspeed@lists.ozlabs.org MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Hi Vijay, On 12/10/2018 12:07 PM, Vijay Khemka wrote: > Added kcs device support for lpc BMC. > > Signed-off-by: Vijay Khemka > --- > arch/arm/boot/dts/aspeed-g5.dtsi | 29 ++++++++++++++++++++++++++++- > 1 file changed, 28 insertions(+), 1 deletion(-) > > diff --git a/arch/arm/boot/dts/aspeed-g5.dtsi b/arch/arm/boot/dts/aspeed-g5.dtsi > index d107459fc0f8..1bd48655bacb 100644 > --- a/arch/arm/boot/dts/aspeed-g5.dtsi > +++ b/arch/arm/boot/dts/aspeed-g5.dtsi > @@ -330,8 +330,35 @@ > ranges = <0x0 0x1e789000 0x1000>; > > lpc_bmc: lpc-bmc at 0 { > - compatible = "aspeed,ast2500-lpc-bmc"; > + compatible = "aspeed,ast2500-lpc-bmc, "simple-mfd", "syscon""; > reg = <0x0 0x80>; > + reg-io-width = <4>; > + > + #address-cells = <1>; > + #size-cells = <1>; > + ranges = <0x0 0x0 0x80>; > + > + kcs1: kcs1 at 0 { > + compatible = "aspeed,ast2500-kcs-bmc"; > + reg = <0x0 0x80>; This reg property isn't needed at here because kcs_bmc_aspeed module reads regmap from the parent node. Please check below code in the driver code. priv->map = syscon_node_to_regmap(dev->parent->of_node); > + interrupts = <8>; > + kcs_chan = <1>; > + status = "disabled"; > + }; > + kcs2: kcs2 at 0 { > + compatible = "aspeed,ast2500-kcs-bmc"; > + reg = <0x0 0x80>; ditto. > + interrupts = <8>; > + kcs_chan = <2>; > + status = "disabled"; > + }; > + kcs3: kcs3 at 0 { > + compatible = "aspeed,ast2500-kcs-bmc"; > + reg = <0x0 0x80>; ditto. > + interrupts = <8>; > + kcs_chan = <3>; > + status = "disabled"; > + }; > }; > > lpc_host: lpc-host at 80 { > You might need to add kcs4 as a sub-node under lpc_host like below: kcs4: kcs4 at 0 { compatible = "aspeed,ast2500-kcs-bmc"; interrupts = <8>; kcs_chan = <4>; status = "disabled"; }; This would be uses as an SMM channel. -Jae