From: Guenter Roeck <linux@roeck-us.net>
To: Christoph Hellwig <hch@lst.de>
Cc: iommu@lists.linux-foundation.org,
Robin Murphy <robin.murphy@arm.com>, Meelis Roos <mroos@linux.ee>,
Linus Walleij <linus.walleij@linaro.org>,
sparclinux@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: various dma_mask fixups
Date: Wed, 29 Aug 2018 15:38:21 -0700 [thread overview]
Message-ID: <20180829223821.GA29499@roeck-us.net> (raw)
In-Reply-To: <20180829062401.8701-1-hch@lst.de>
On Wed, Aug 29, 2018 at 08:23:58AM +0200, Christoph Hellwig wrote:
> Fix warnings and regressions from requiring a dma mask.
With this series applied, I see the following in my sh4 boot tests.
sb 1-1: new full-speed USB device number 2 using sm501-usb
sm501-usb sm501-usb: OHCI Unrecoverable Error, disabled
sm501-usb sm501-usb: HC died; cleaning up
This is a persistent problem. Reverting upstream commit 2f606da7823
("mfd: sm501: Set coherent_dma_mask when creating subdevices") does not
make a difference.
The problem is gone if I do not apply 'driver core: initialize a default
DMA mask for platform device'.
On the plus side, the sparc warnings are gone.
Guenter
next prev parent reply other threads:[~2018-08-29 22:38 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-08-29 6:23 various dma_mask fixups Christoph Hellwig
[not found] ` <20180829062401.8701-1-hch-jcswGhMUV9g@public.gmane.org>
2018-08-29 6:23 ` [PATCH 1/3] driver core: initialize a default DMA mask for platform device Christoph Hellwig
2018-08-29 6:24 ` [PATCH 2/3] sparc: set a default 32-bit dma mask for OF devices Christoph Hellwig
2018-08-29 6:24 ` [PATCH 3/3] of/platform: initialise AMBA default DMA masks Christoph Hellwig
2018-08-29 6:59 ` various dma_mask fixups Linus Walleij
2018-08-29 22:38 ` Guenter Roeck [this message]
2018-08-30 10:40 ` Guenter Roeck
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