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From: Aaro Koskinen <>
To: Robin Murphy <>,
	Christoph Hellwig <>,,
Subject: [REGRESSION] OCTEON MMC driver failure with v4.19
Date: Fri, 26 Oct 2018 23:54:23 +0300	[thread overview]
Message-ID: <> (raw)


OCTEON (MIPS64) MMC driver probe fails with v4.19, because with

commit 6c2fb2ea76361da9b420a8e23a2a19e7842cbdda
Author: Robin Murphy <>
Date:   Mon Jul 23 23:16:09 2018 +0100

    of/device: Set bus DMA mask as appropriate

we now get a default 32-bit bus DMA mask, and the device itself has
64-bit mask, so it gets rejected.

With the current mainline, the driver is again working (probably
because of b4ebe6063204 ("dma-direct: implement complete bus_dma_mask
handling")). But I think this is just because I happen to have < 4 GB RAM,
and it probably could still fail on bigger systems..?


             reply	other threads:[~2018-10-26 20:54 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-10-26 20:54 Aaro Koskinen [this message]
2018-11-05 22:06 ` Aaro Koskinen
2018-11-06  6:27   ` Christoph Hellwig
2018-11-06  9:05     ` Aaro Koskinen
2018-11-06 21:51       ` Aaro Koskinen

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