[linux-sunxi] [PATCH v2 3/5] spi: sunxi: Add Allwinner A31 SPI controller driver
Emilio López
emilio at elopez.com.ar
Wed Jan 29 20:20:48 EST 2014
Hi Maxime,
El 29/01/14 08:10, Maxime Ripard escribió:
> The Allwinner A31 has a new SPI controller IP compared to the older Allwinner
> SoCs.
>
> It supports DMA, but the driver only does PIO for now, and DMA will be
> supported eventually.
>
> Signed-off-by: Maxime Ripard <maxime.ripard at free-electrons.com>
> ---
(snip)
> + struct sun6i_spi *sspi = spi_master_get_devdata(master);
> + int ret;
> +
> + ret = clk_prepare_enable(sspi->hclk);
> + if (ret) {
> + dev_err(dev, "Couldn't enable clock 'ahb spi'\n");
> + goto out;
> + }
> +
> + ret = clk_prepare_enable(sspi->mclk);
> + if (ret) {
> + dev_err(dev, "Couldn't enable clock 'ahb spi'\n");
A different message would be nice :)
Cheers,
Emilio
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