linux-kernel - Re: [PATCH] spi: mediatek: Enable irq when pdata is ready

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Message-ID: <14cba472-87b1-001e-30fa-674e4102130d@collabora.com>
Date:   Mon, 28 Nov 2022 14:32:31 +0100
From:   AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>
To:     Ricardo Ribalda <ribalda@...omium.org>,
        Mark Brown <broonie@...nel.org>,
        Matthias Brugger <matthias.bgg@...il.com>
Cc:     linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, linux-spi@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] spi: mediatek: Enable irq when pdata is ready

Il 28/11/22 12:00, Ricardo Ribalda ha scritto:
> If the device does not come straight from reset, we might receive an IRQ
> before we are ready to handle it.
> 
> Fixes:
> 
> [    0.832328] Unable to handle kernel read from unreadable memory at virtual address 0000000000000010
> [    1.040343] Call trace:
> [    1.040347]  mtk_spi_can_dma+0xc/0x40
> ...
> [    1.262265]  start_kernel+0x338/0x42c
> 
> Signed-off-by: Ricardo Ribalda <ribalda@...omium.org>

Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>