wcn36xx: set DMA mask explicitly

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@zonque.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

diff --git a/drivers/net/wireless/ath/wcn36xx/main.c b/drivers/net/wireless/ath/wcn36xx/main.c
index e3b91b3b38efe939bfa3ebcb4391f3a022f28a8d..e6330ad372b36cdddb812fe39be810228614fba9 100644 (file)
--- 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);