Re: [PATCH] spi: spi-bcm2835.c: Fix 3-wire mode

["Sa, Nuno" <Nuno.Sa@xxxxxxxxxx>]

On Mon, 2019-07-01 at 13:55 +0200, Lukas Wunner wrote:
> I see.  In that case, try:
> 
>  	/* handle all the 3-wire mode */
> -	if ((spi->mode & SPI_3WIRE) && (tfr->rx_buf))
> +	if ((spi->mode & SPI_3WIRE) && (tfr->rx_buf != ctlr->dummy_rx))
>  		cs |= BCM2835_SPI_CS_REN;
>  	else
>  		cs &= ~BCM2835_SPI_CS_REN;
> 

This worked fine. Also, I did a quick backport of the state of your
driver's (both spi-bcm2835 and bcm2835-dma) in revpi_staging and it
also worked fine with my device.
So, as far as I understand, the above suggestion (or my patch) is not
intended to be upstreamed, right? It is just a temporary fix that I can
use while your patchset gets upstream.

Thanks for your help!
Nuno Sá