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

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[ Upstream commit d7bf31a0f8 ]

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

Fixes: a371c10ea4 ("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>
This commit is contained in:
Rayagonda Kokatanur
2019-02-04 11:21:29 -08:00
committed by Greg Kroah-Hartman
parent 0d1aae8046
commit 2f29bedd5f
1 changed files with 2 additions and 2 deletions
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4
drivers/mailbox/bcm-flexrm-mailbox.c
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@@ -1381,9 +1381,9 @@ 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);