* [PATCH] mailbox: bcm-flexrm-mailbox: Fix typo in dma_mask setup
@ 2017-05-17 7:54 Anup Patel
0 siblings, 0 replies; only message in thread
From: Anup Patel @ 2017-05-17 7:54 UTC (permalink / raw)
To: Jassi Brar
Cc: Scott Branden, linux-kernel, linux-arm-kernel,
bcm-kernel-feedback-list, Anup Patel
The output address of Broadcom FlexRM is 39bits and not
40bits hence we fix dma_mask setup in flexrm_mbox_probe()
accordingly.
Fixes: dbc049eee730 ("mailbox: Add driver for Broadcom
FlexRM ring manager")
Signed-off-by: Anup Patel <anup.patel@broadcom.com>
Reviewed-by: Scott Branden <scott.branden@broadcom.com>
---
drivers/mailbox/bcm-flexrm-mailbox.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/mailbox/bcm-flexrm-mailbox.c b/drivers/mailbox/bcm-flexrm-mailbox.c
index da67882..6aeac6e 100644
--- a/drivers/mailbox/bcm-flexrm-mailbox.c
+++ b/drivers/mailbox/bcm-flexrm-mailbox.c
@@ -1479,8 +1479,8 @@ static int flexrm_mbox_probe(struct platform_device *pdev)
ring->cmpl_read_offset = 0;
}
- /* FlexRM is capable of 40-bit physical addresses only */
- ret = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(40));
+ /* FlexRM is capable of 39-bit physical addresses only */
+ ret = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(39));
if (ret) {
ret = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(32));
if (ret)
--
2.7.4
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