On Mon, 2017-01-02 at 13:35 +0200, Andy Shevchenko wrote:
> Fall back to usual allocation method if DMA coherent allocation fails.
>
> SPI framework will map and use DMA mapped memory when possible.
Locally I have re-done DMA approach and thus this patch became optional.
Should I leave or remove it? Opinions?
>
> Signed-off-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
> ---
> drivers/staging/fbtft/fbtft-core.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/staging/fbtft/fbtft-core.c
> b/drivers/staging/fbtft/fbtft-core.c
> index 226be8c09768..9f024986aff4 100644
> --- a/drivers/staging/fbtft/fbtft-core.c
> +++ b/drivers/staging/fbtft/fbtft-core.c
> @@ -843,7 +843,8 @@ struct fb_info *fbtft_framebuffer_alloc(struct
> fbtft_display *display,
> if (dma) {
> txbuf = dmam_alloc_coherent(dev, txbuflen,
> &par->txbuf.dma,
> GFP_DMA);
> - } else
> + }
> + if (!txbuf)
> #endif
> {
> txbuf = devm_kzalloc(par->info->device,
--
Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
Intel Finland Oy
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