[PATCH 02/10] wcn36xx: set DMA mask explicitly

[Ramon Fried]

On Wed, May 16, 2018 at 5:08 PM, Daniel Mack <daniel at zonque.org> wrote:
> The device takes 32-bit addresses only, so inform the DMA API about it.
> This is the default on msm8016, so that doesn't change anything, but
> it's best practice to be explicit.
>
> Signed-off-by: Daniel Mack <daniel at zonque.org>
> ---
>  drivers/net/wireless/ath/wcn36xx/main.c | 6 ++++++
>  1 file changed, 6 insertions(+)
>
> diff --git a/drivers/net/wireless/ath/wcn36xx/main.c b/drivers/net/wireless/ath/wcn36xx/main.c
> index e3b91b3b38ef..e6330ad372b3 100644
> --- a/drivers/net/wireless/ath/wcn36xx/main.c
> +++ b/drivers/net/wireless/ath/wcn36xx/main.c
> @@ -1309,6 +1309,12 @@ static int wcn36xx_probe(struct platform_device *pdev)
>         mutex_init(&wcn->hal_mutex);
>         mutex_init(&wcn->scan_lock);
>
> +       ret = dma_set_mask_and_coherent(wcn->dev, DMA_BIT_MASK(32));
> +       if (ret < 0) {
> +               wcn36xx_err("failed to set DMA mask: %d\n", ret);
> +               goto out_wq;
> +       }
> +
>         INIT_WORK(&wcn->scan_work, wcn36xx_hw_scan_worker);
>
>         wcn->smd_channel = qcom_wcnss_open_channel(wcnss, "WLAN_CTRL", wcn36xx_smd_rsp_process, hw);
> --
> 2.14.3
>
>
> _______________________________________________
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> wcn36xx at lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/wcn36xx
Acked-by: Ramon Fried <ramon.fried at linaro.org>