MAX7301 GPIO: Do not force SPI speed when using OF Platform
stigge at antcom.de
Wed Aug 7 08:17:38 EDT 2013
On 08/07/2013 01:31 PM, leroy christophe wrote:
> Le 24/07/2013 12:19, Roland Stigge a écrit :
>> commit 047b93a35961f7a6561e6f5dcb040738f822b892 introduced the following
>> to gpio-max7301.c:
>> /* bits_per_word cannot be configured in platform data */
>> - spi->bits_per_word = 16;
>> + if (spi->dev.platform_data)
>> + spi->bits_per_word = 16;
>> ret = spi_setup(spi);
>> Comment is: "The bit_per_word can be set in the OF Device tree, so no
>> need to force it as with the platform_data when using OF Platform"
>> Can you please point me to the respective OF option? I couldn't find it
>> under drivers/spi/spi* or Documentation/devicetree/bindings/spi/*.
> You have to add the following in your dts:
> spi-bits = <16>;
I tried this, both in the device's and in the controller's node. But it
didn't work. However, as described, I didn't expect it to work, because
there is no code present to handle "spi-bits". At least not in 3.10.
Am I missing something? Otherwise, maybe something of the tree that you
are talking about is missing from mainline still?
Thanks in advance,
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