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

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Date:   Tue, 9 Mar 2021 08:43:33 -0600
From:   Nishanth Menon <nm@...com>
To:     Aswath Govindraju <a-govindraju@...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

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.

-- 
Regards,
Nishanth Menon
Key (0xDDB5849D1736249D) / Fingerprint: F8A2 8693 54EB 8232 17A3  1A34 DDB5 849D 1736 249D