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Selecting CONFIG_DMADEVICES is optional, and we must
be able to continue even without DMA. Otherwise things
like omap4430sdp nfsroot will fail if DMA is not
selected.
Note that the driver already supports PIO mode, but
we fail to fall back to PIO if requesting DMA channels
fails.
Signed-off-by: T
On 04/12/2013 04:16 PM, Martin Fuzzey wrote:
> Hi Maxime,
>
> On 12/04/13 15:30, Maxime Ripard wrote:
>> I submitted a similar patch quite some time ago [1], and at the time, this
>> patch was found inadequate, and we decided to add the compatible of the
>> particular device that we drive through
Hi Maxime,
On 12/04/13 15:30, Maxime Ripard wrote:
> I submitted a similar patch quite some time ago [1], and at the time,
> this patch was found inadequate, and we decided to add the compatible
> of the particular device that we drive through spidev.
Thanks for pointing this out.
> The ratio
The spidev driver is useful to allow userspace access
to SPI devices that have no kernel SPI driver.
However DT requires a compatible tree to allow the driver
to be probed.
To avoid having to modify the driver for every extra device
add a generic "linux,spidev" compatible string that may be
used
Hi Martin,
Le 12/04/2013 14:56, Martin Fuzzey a écrit :
> The spidev driver is useful to allow userspace access
> to SPI devices that have no kernel SPI driver.
>
> However DT requires a compatible tree to allow the driver
> to be probed.
>
> To avoid having to modify the driver for every extra
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