linux-kernel - Re: [PATCH v2 0/2] AM64: Add support for GPIO

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Message-ID: <9ba5e86d-7a60-a35b-0fb4-ddc3052eecee@ti.com>
Date:   Tue, 9 Mar 2021 21:20:51 +0530
From:   Aswath Govindraju <a-govindraju@...com>
To:     Nishanth Menon <nm@...com>
CC:     Vignesh Raghavendra <vigneshr@...com>,
        Lokesh Vutla <lokeshvutla@...com>,
        Kishon Vijay Abraham I <kishon@...com>,
        Grygorii Strashko <grygorii.strashko@...com>,
        Dave Gerlach <d-gerlach@...com>,
        Tero Kristo <kristo@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 0/2] AM64: Add support for GPIO

Hi Nishanth,

On 09/03/21 8:13 pm, Nishanth Menon wrote:
> On 16:59-20210304, Aswath Govindraju wrote:
>> The following series of patches adds support for gpio on AM642 evm/sk.
>>
>> Changes since v1:
>> - Added DT for gpio subsystem present in MCU domain
>> - reserved the mcu gpio for firmware usage
>>
>> This series of patches depend on,
>> https://patchwork.kernel.org/project/linux-arm-kernel/list/?series=439039
>> https://patchwork.kernel.org/project/linux-arm-kernel/list/?series=439153
>>
>>
>> Aswath Govindraju (2):
>>   arm64: dts: ti: k3-am64: Add GPIO DT nodes
>>   arm64: dts: ti: k3-am642: reserve gpio in mcu domain for firmware
>>     usage
>>
>>  arch/arm64/boot/dts/ti/k3-am64-main.dtsi | 45 ++++++++++++++++++++++++
>>  arch/arm64/boot/dts/ti/k3-am64-mcu.dtsi  | 27 ++++++++++++++
>>  arch/arm64/boot/dts/ti/k3-am642-evm.dts  |  5 +++
>>  arch/arm64/boot/dts/ti/k3-am642-sk.dts   |  5 +++
>>  4 files changed, 82 insertions(+)
>>
>> -- 
>> 2.17.1
>>
> 
> 
> Based on your offline comment:
> -----
> 
> On going through the bootlogs before posting for I found the following
> errors,
> 
> [    1.091117] davinci_gpio 601000.gpio: IRQ index 2 not found
> [    1.101522] davinci_gpio 601000.gpio: error -ENXIO: IRQ not populated
> 
> Some issues in allocating interrupts in case of main_gpio1. I
> accumulated the gpio with interrupt numbers. I'll try to debug the
> reason behind it and update you with its status. (bootlogs of ti-sdk,
> also have this error).
> 
> -----
> 
> I am going to drop this off my queue, please update if the fixup is some
> system configuration error or repost with fix.
> 

This is expected to be a fixup in the system configuration and not a bug
in the patch series. So, can you please have these patches in your queue
? I'll soon post the test results indicating the functioning of GPIOs.

Thanks,
Aswath