diff mbox series

[v9,07/15] memory: tegra20-emc: Increase handshake timeout

Message ID 20190730165618.10122-8-digetx@gmail.com
State Changes Requested
Headers show
Series memory: tegra: Introduce Tegra30 EMC driver | expand

Commit Message

Dmitry Osipenko July 30, 2019, 4:56 p.m. UTC 
Turned out that it could take over a millisecond under some circumstances,
like running on a very low CPU/memory frequency. TRM says that handshake
happens when there is a "safe" moment, but not explains exactly what that
moment is. Apparently at least memory should be idling and thus the low
frequency should be a reasonable cause for a longer handshake delay.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
---
 drivers/memory/tegra/tegra20-emc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/memory/tegra/tegra20-emc.c b/drivers/memory/tegra/tegra20-emc.c
index 25a6aad6a7a9..da75efc632c7 100644
--- a/drivers/memory/tegra/tegra20-emc.c
+++ b/drivers/memory/tegra/tegra20-emc.c
@@ -236,7 +236,7 @@  static int emc_complete_timing_change(struct tegra_emc *emc, bool flush)
 	}
 
 	timeout = wait_for_completion_timeout(&emc->clk_handshake_complete,
-					      usecs_to_jiffies(100));
+					      msecs_to_jiffies(100));
 	if (timeout == 0) {
 		dev_err(emc->dev, "EMC-CAR handshake failed\n");
 		return -EIO;