[PATCH AUTOSEL 5.12 51/80] mmc: sdhci-of-aspeed: Turn down a phase correction warning
Sasha Levin
sashal at kernel.org
Mon Jul 5 09:05:47 AEST 2021
From: Andrew Jeffery <andrew at aj.id.au>
[ Upstream commit a7ab186f60785850b5af1be183867000485ad491 ]
The card timing and the bus frequency are not changed atomically with
respect to calls to the set_clock() callback in the driver. The result
is the driver sees a transient state where there's a mismatch between
the two and thus the inputs to the phase correction calculation
formula are garbage.
Switch from dev_warn() to dev_dbg() to avoid noise in the normal case,
though the change does make bad configurations less likely to be
noticed.
Reported-by: Joel Stanley <joel at jms.id.au>
Signed-off-by: Andrew Jeffery <andrew at aj.id.au>
Reviewed-by: Joel Stanley <joel at jms.id.au>
Link: https://lore.kernel.org/r/20210607013020.85885-1-andrew@aj.id.au
Signed-off-by: Ulf Hansson <ulf.hansson at linaro.org>
Signed-off-by: Sasha Levin <sashal at kernel.org>
---
drivers/mmc/host/sdhci-of-aspeed.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/mmc/host/sdhci-of-aspeed.c b/drivers/mmc/host/sdhci-of-aspeed.c
index 7d8692e90996..b6ac2af199b8 100644
--- a/drivers/mmc/host/sdhci-of-aspeed.c
+++ b/drivers/mmc/host/sdhci-of-aspeed.c
@@ -150,7 +150,7 @@ static int aspeed_sdhci_phase_to_tap(struct device *dev, unsigned long rate_hz,
tap = div_u64(phase_period_ps, prop_delay_ps);
if (tap > ASPEED_SDHCI_NR_TAPS) {
- dev_warn(dev,
+ dev_dbg(dev,
"Requested out of range phase tap %d for %d degrees of phase compensation at %luHz, clamping to tap %d\n",
tap, phase_deg, rate_hz, ASPEED_SDHCI_NR_TAPS);
tap = ASPEED_SDHCI_NR_TAPS;
--
2.30.2
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