wil6210: support 40bit DMA addresses
Add the option to support 40bit addresses since some platforms
may not support 48bits but support 40bits
Change-Id: Ie63fed2f9793de348b10932556ea6faf81f93f81
Signed-off-by: Lazar Alexei <qca_ailizaro@qca.qualcomm.com>
Signed-off-by: Maya Erez <qca_merez@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Git-commit: 3dc2c13b5238cef01f36b9ba72e2d1b01862381c
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/ath.git
Signed-off-by: Maya Erez <merez@codeaurora.org>
diff --git a/drivers/net/wireless/ath/wil6210/txrx.c b/drivers/net/wireless/ath/wil6210/txrx.c
index 8fe2239..28ad809 100644
--- a/drivers/net/wireless/ath/wil6210/txrx.c
+++ b/drivers/net/wireless/ath/wil6210/txrx.c
@@ -178,14 +178,14 @@
*
* HW has limitation that all vrings addresses must share the same
* upper 16 msb bits part of 48 bits address. To workaround that,
- * if we are using 48 bit addresses switch to 32 bit allocation
- * before allocating vring memory.
+ * if we are using more than 32 bit addresses switch to 32 bit
+ * allocation before allocating vring memory.
*
* There's no check for the return value of dma_set_mask_and_coherent,
* since we assume if we were able to set the mask during
* initialization in this system it will not fail if we set it again
*/
- if (wil->use_extended_dma_addr)
+ if (wil->dma_addr_size > 32)
dma_set_mask_and_coherent(dev, DMA_BIT_MASK(32));
vring->va = dma_alloc_coherent(dev, sz, &vring->pa, GFP_KERNEL);
@@ -195,8 +195,9 @@
return -ENOMEM;
}
- if (wil->use_extended_dma_addr)
- dma_set_mask_and_coherent(dev, DMA_BIT_MASK(48));
+ if (wil->dma_addr_size > 32)
+ dma_set_mask_and_coherent(dev,
+ DMA_BIT_MASK(wil->dma_addr_size));
/* initially, all descriptors are SW owned
* For Tx and Rx, ownership bit is at the same location, thus