mailbox: bcm-flexrm-mailbox: Fix FlexRM ring flush timeout issue

[ Upstream commit d7bf31a0f85faaf63c63c39d55154825a1eaaea9 ]

RING_CONTROL reg was not written due to wrong address, hence all
the subsequent ring flush was timing out.

Fixes: a371c10ea4b3 ("mailbox: bcm-flexrm-mailbox: Fix FlexRM ring flush sequence")

Signed-off-by: Rayagonda Kokatanur <rayagonda.kokatanur@broadcom.com>
Signed-off-by: Ray Jui <ray.jui@broadcom.com>
Reviewed-by: Scott Branden <scott.branden@broadcom.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/mailbox/bcm-flexrm-mailbox.c b/drivers/mailbox/bcm-flexrm-mailbox.c
index 8ab077f..96bcabf 100644 (file)
--- a/drivers/mailbox/bcm-flexrm-mailbox.c
+++ b/drivers/mailbox/bcm-flexrm-mailbox.c
@@ -1396,9 +1396,9 @@ static void flexrm_shutdown(struct mbox_chan *chan)
 
        /* Clear ring flush state */
        timeout = 1000; /* timeout of 1s */
-       writel_relaxed(0x0, ring + RING_CONTROL);
+       writel_relaxed(0x0, ring->regs + RING_CONTROL);
        do {
-               if (!(readl_relaxed(ring + RING_FLUSH_DONE) &
+               if (!(readl_relaxed(ring->regs + RING_FLUSH_DONE) &
                      FLUSH_DONE_MASK))
                        break;
                mdelay(1);