linux-kernel - Re: [PATCH dts/arm/aspeed-g5 v1] ARM: dts: aspeed-g5: Add IPMI KCS node

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Message-ID: <CACPK8Xdhmrwfj6tGZ_o_JeoxdOii_5OD5oz80FJFRasvGd1L9w@mail.gmail.com>
Date:   Fri, 25 May 2018 14:04:11 +0930
From:   Joel Stanley <joel@....id.au>
To:     "Wang, Haiyue" <haiyue.wang@...ux.intel.com>,
        Andrew Jeffery <andrew@...id.au>
Cc:     Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        linux-aspeed@...ts.ozlabs.org,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH dts/arm/aspeed-g5 v1] ARM: dts: aspeed-g5: Add IPMI KCS node

Hello Andrew,

On 16 March 2018 at 11:17, Wang, Haiyue <haiyue.wang@...ux.intel.com> wrote:
> Hi Joel and Andrew,
>
> Have time to review this patch ? Hope for your comments. :-)
>
> BR,
> Haiyue
>
>
> On 2018-03-07 13:04, Haiyue Wang wrote:
>>
>> The IPMI KCS device part of the LPC interface and is used for
>> communication with the host processor.
>>
>> Signed-off-by: Haiyue Wang <haiyue.wang@...ux.intel.com>

Do you have time to take a look at these? The device tree doesn't make
sense to me.

Cheers,

Joel

>> ---
>>   arch/arm/boot/dts/aspeed-g5.dtsi | 43
>> +++++++++++++++++++++++++++++++++++++++-
>>   1 file changed, 42 insertions(+), 1 deletion(-)
>>
>> diff --git a/arch/arm/boot/dts/aspeed-g5.dtsi
>> b/arch/arm/boot/dts/aspeed-g5.dtsi
>> index 8eac57c..f443169 100644
>> --- a/arch/arm/boot/dts/aspeed-g5.dtsi
>> +++ b/arch/arm/boot/dts/aspeed-g5.dtsi
>> @@ -267,8 +267,40 @@
>>                                 ranges = <0x0 0x1e789000 0x1000>;
>>                                 lpc_bmc: lpc-bmc@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@0 {
>> +                                               compatible =
>> "aspeed,ast2500-kcs-bmc";
>> +                                               reg = <0x0 0x80>;
>> +                                               interrupts = <8>;
>> +                                               kcs_chan = <1>;
>> +                                               kcs_addr = <0x0>;
>> +                                               status = "disabled";
>> +                                       };
>> +
>> +                                       kcs2: kcs2@0 {
>> +                                               compatible =
>> "aspeed,ast2500-kcs-bmc";
>> +                                               reg = <0x0 0x80>;
>> +                                               interrupts = <8>;
>> +                                               kcs_chan = <2>;
>> +                                               kcs_addr = <0x0>;
>> +                                               status = "disabled";
>> +                                       };
>> +
>> +                                       kcs3: kcs3@0 {
>> +                                               compatible =
>> "aspeed,ast2500-kcs-bmc";
>> +                                               reg = <0x0 0x80>;
>> +                                               interrupts = <8>;
>> +                                               kcs_chan = <3>;
>> +                                               kcs_addr = <0x0>;
>> +                                               status = "disabled";
>> +                                       };
>>                                 };
>>                                 lpc_host: lpc-host@80 {
>> @@ -294,6 +326,15 @@
>>                                                 status = "disabled";
>>                                         };
>>   +                                     kcs4: kcs4@0 {
>> +                                               compatible =
>> "aspeed,ast2500-kcs-bmc";
>> +                                               reg = <0x0 0xa0>;
>> +                                               interrupts = <8>;
>> +                                               kcs_chan = <4>;
>> +                                               kcs_addr = <0x0>;
>> +                                               status = "disabled";
>> +                                       };
>> +
>>                                         lhc: lhc@20 {
>>                                                 compatible =
>> "aspeed,ast2500-lhc";
>>                                                 reg = <0x20 0x24 0x48
>> 0x8>;
>
>