On Wed, Mar 19, 2014 at 09:06:31AM +0100, Geert Uytterhoeven wrote: > On Wed, Mar 19, 2014 at 4:53 AM, Axel Lin <[email protected]> wrote:
> > Reject transfer if both tx_buf and rx_buf are NULL for non-zero length > > transfer. > > Add the checking in spi core so we can remove the same checking in various > > drivers. > Just wondering: are there any SPI slave drivers that implement dummy cycles > this way? The ChromeOS EC apparently does this.
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