From: Maxime Ripard <maxime.ripard@free-electrons.com>
To: Vinod Koul <vinod.koul@intel.com>
Cc: dmaengine@vger.kernel.org,
"Laurent Pinchart" <laurent.pinchart@ideasonboard.com>,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org,
"Antoine Ténart" <antoine@free-electrons.com>,
lars@metafoo.de
Subject: Re: [PATCH 2/9] dmaengine: Make channel allocation callbacks optional
Date: Wed, 1 Oct 2014 10:39:17 +0200 [thread overview]
Message-ID: <20141001083917.GG6884@lukather> (raw)
In-Reply-To: <20140928160757.GJ1638@intel.com>
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Hi Vinod,
On Sun, Sep 28, 2014 at 09:37:57PM +0530, Vinod Koul wrote:
> On Sat, Sep 27, 2014 at 10:54:38AM +0200, Maxime Ripard wrote:
> > Nowadays, some drivers don't have anything in there channel allocation
> > callbacks anymore.
> >
> > Remove the BUG_ON if those callbacks aren't implemented, in order to allow
> > drivers to not implement them.
> >
> > Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
> > ---
> > drivers/dma/dmaengine.c | 2 --
> > 1 file changed, 2 deletions(-)
> >
> > diff --git a/drivers/dma/dmaengine.c b/drivers/dma/dmaengine.c
> > index d5d30ed863ce..cfcb181b1184 100644
> > --- a/drivers/dma/dmaengine.c
> > +++ b/drivers/dma/dmaengine.c
> > @@ -817,8 +817,6 @@ int dma_async_device_register(struct dma_device *device)
> > BUG_ON(dma_has_cap(DMA_INTERLEAVE, device->cap_mask) &&
> > !device->device_prep_interleaved_dma);
> >
> > - BUG_ON(!device->device_alloc_chan_resources);
> > - BUG_ON(!device->device_free_chan_resources);
> Dont think we have drivers without free. IIRC cppi one might be only
> instance
It was more a matter of simmetry to be honest, I'm fine dropping it if
you want.
Maxime
--
Maxime Ripard, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com
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next prev parent reply other threads:[~2014-10-01 8:40 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-27 8:54 [PATCH 0/9] dmaengine: Implement generic slave capabilities retrieval Maxime Ripard
2014-09-27 8:54 ` [PATCH 1/9] dmaengine: Make the destination abbreviation coherent Maxime Ripard
2014-09-27 8:54 ` [PATCH 2/9] dmaengine: Make channel allocation callbacks optional Maxime Ripard
2014-09-28 16:07 ` Vinod Koul
2014-10-01 8:39 ` Maxime Ripard [this message]
2014-09-27 8:54 ` [PATCH 3/9] dmaengine: Introduce a device_config callback Maxime Ripard
2014-09-28 16:13 ` Vinod Koul
2014-09-28 16:14 ` Vinod Koul
2014-09-27 8:54 ` [PATCH 4/9] dmaengine: split out pause/resume operations from device_control Maxime Ripard
2014-09-27 8:54 ` [PATCH 5/9] dmaengine: Add device_terminate_all callback Maxime Ripard
2014-09-27 8:54 ` [PATCH 6/9] dmaengine: Create a generic dma_slave_caps callback Maxime Ripard
2014-09-27 9:25 ` Russell King - ARM Linux
2014-10-01 8:21 ` Maxime Ripard
2014-09-27 8:54 ` [PATCH 7/9] dmaengine: Move slave caps to dma_device Maxime Ripard
2014-09-27 9:28 ` Russell King - ARM Linux
2014-10-01 8:27 ` Maxime Ripard
2014-10-01 8:55 ` Russell King - ARM Linux
2014-09-27 8:54 ` [PATCH 8/9] dmaengine: Mark device_control as deprecated Maxime Ripard
2014-09-27 8:54 ` [PATCH 9/9] dmaengine: sun6i: Convert to generic slave_caps Maxime Ripard
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