linux-kernel - Re: [PATCH v3 1/3] ARM: dts: STi: Fix aliases property name for STi boards

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Message-ID: <8edca499-d31a-19b6-946b-503489054f6d@st.com>
Date:   Wed, 7 Mar 2018 17:11:31 +0000
From:   Patrice CHOTARD <patrice.chotard@...com>
To:     Rob Herring <robh+dt@...nel.org>
CC:     Mark Rutland <mark.rutland@....com>,
        Russell King <linux@...linux.org.uk>,
        "moderated list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE" 
        <linux-arm-kernel@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Jiri Slaby <jslaby@...e.com>,
        "linux-serial@...r.kernel.org" <linux-serial@...r.kernel.org>
Subject: Re: [PATCH v3 1/3] ARM: dts: STi: Fix aliases property name for STi
 boards

Hi Rob

On 03/07/2018 05:15 PM, Rob Herring wrote:
> On Wed, Mar 7, 2018 at 2:49 AM,  <patrice.chotard@...com> wrote:
>> From: Patrice Chotard <patrice.chotard@...com>
>>
>> Update serial aliases from "ttyASN" to more common "serialN".
>>
>> Since dtc v1.4.6-9-gaadd0b65c987, aliases property name must
>> be lowercase only. This allows to fix following dtc warnings:
>>
>> arch/arm/boot/dts/stih418-b2199.dtb: Warning (alias_paths): /aliases: aliases property name must include only lowercase and '-'
>> arch/arm/boot/dts/stih407-b2120.dtb: Warning (alias_paths): /aliases: aliases property name must include only lowercase and '-'
>> arch/arm/boot/dts/stih410-b2260.dtb: Warning (alias_paths): /aliases: aliases property name must include only lowercase and '-'
>> arch/arm/boot/dts/stih410-b2120.dtb: Warning (alias_paths): /aliases: aliases property name must include only lowercase and '-'
>>
>> Signed-off-by: Patrice Chotard <patrice.chotard@...com>
>> ---
>>
>> v3: _ none
>> v2: _ use serialN instead of ttyasN aliases to not break ABI
>>
>>   arch/arm/boot/dts/stih407-b2120.dts | 4 ++--
>>   arch/arm/boot/dts/stih410-b2120.dts | 4 ++--
>>   arch/arm/boot/dts/stih410-b2260.dts | 4 ++--
>>   arch/arm/boot/dts/stih418-b2199.dts | 4 ++--
>>   4 files changed, 8 insertions(+), 8 deletions(-)
>>
>> diff --git a/arch/arm/boot/dts/stih407-b2120.dts b/arch/arm/boot/dts/stih407-b2120.dts
>> index de3c8bf129b5..2c4d6033b448 100644
>> --- a/arch/arm/boot/dts/stih407-b2120.dts
>> +++ b/arch/arm/boot/dts/stih407-b2120.dts
>> @@ -14,7 +14,7 @@
>>          compatible = "st,stih407-b2120", "st,stih407";
>>
>>          chosen {
>> -               bootargs = "console=ttyAS0,115200 clk_ignore_unused";
>> +               bootargs = "console=serial0,115200 clk_ignore_unused";
> 
> These hunks for bootargs are still wrong. You wouldn't boot with a
> console if you only apply patch 1. These hunks should be squashed with
> patch 2.

Thanks for pointing this, i even noticed that patches must be reordered, 
first st-asc driver update and then DTS patches.

Thanks

Patrice

> 
>>                  stdout-path = &sbc_serial0;
>>          };
>>
>> @@ -24,7 +24,7 @@
>>          };
>>
>>          aliases {
>> -               ttyAS0 = &sbc_serial0;
>> +               serial0 = &sbc_serial0;
>>                  ethernet0 = &ethernet0;
>>          };
>>
>> diff --git a/arch/arm/boot/dts/stih410-b2120.dts b/arch/arm/boot/dts/stih410-b2120.dts
>> index 0a59b7b0f4b2..5422850641e8 100644
>> --- a/arch/arm/boot/dts/stih410-b2120.dts
>> +++ b/arch/arm/boot/dts/stih410-b2120.dts
>> @@ -14,7 +14,7 @@
>>          compatible = "st,stih410-b2120", "st,stih410";
>>
>>          chosen {
>> -               bootargs = "console=ttyAS0,115200 clk_ignore_unused";
>> +               bootargs = "console=serial0,115200 clk_ignore_unused";
>>                  stdout-path = &sbc_serial0;
>>          };
>>
>> @@ -24,7 +24,7 @@
>>          };
>>
>>          aliases {
>> -               ttyAS0 = &sbc_serial0;
>> +               serial0 = &sbc_serial0;
>>                  ethernet0 = &ethernet0;
>>          };
>>
>> diff --git a/arch/arm/boot/dts/stih410-b2260.dts b/arch/arm/boot/dts/stih410-b2260.dts
>> index feb8834478fa..ca347160e35d 100644
>> --- a/arch/arm/boot/dts/stih410-b2260.dts
>> +++ b/arch/arm/boot/dts/stih410-b2260.dts
>> @@ -15,7 +15,7 @@
>>          compatible = "st,stih410-b2260", "st,stih410";
>>
>>          chosen {
>> -               bootargs = "console=ttyAS1,115200 clk_ignore_unused";
>> +               bootargs = "console=serial1,115200 clk_ignore_unused";
>>                  stdout-path = &uart1;
>>          };
>>
>> @@ -25,7 +25,7 @@
>>          };
>>
>>          aliases {
>> -               ttyAS1 = &uart1;
>> +               serial1 = &uart1;
>>                  ethernet0 = &ethernet0;
>>          };
>>
>> diff --git a/arch/arm/boot/dts/stih418-b2199.dts b/arch/arm/boot/dts/stih418-b2199.dts
>> index 39b4db2e3507..dbf7bb704a1a 100644
>> --- a/arch/arm/boot/dts/stih418-b2199.dts
>> +++ b/arch/arm/boot/dts/stih418-b2199.dts
>> @@ -14,7 +14,7 @@
>>          compatible = "st,stih418-b2199", "st,stih418";
>>
>>          chosen {
>> -               bootargs = "console=ttyAS0,115200 clk_ignore_unused";
>> +               bootargs = "console=serial0,115200 clk_ignore_unused";
>>                  stdout-path = &sbc_serial0;
>>          };
>>
>> @@ -24,7 +24,7 @@
>>          };
>>
>>          aliases {
>> -               ttyAS0 = &sbc_serial0;
>> +               serial0 = &sbc_serial0;
>>                  ethernet0 = &ethernet0;
>>          };
>>
>> --
>> 1.9.1
>>