[PATCH AUTOSEL 5.13 54/85] mmc: sdhci-of-aspeed: Turn down a phase correction warning
From: Sasha Levin <sashal@kernel.org>
Date: 2021-07-04 23:06:22
Also in:
linux-aspeed, linux-mmc, lkml, openbmc, stable
Subsystem:
aspeed sd/mmc driver, multimedia card (mmc), secure digital (sd) and sdio subsystem, secure digital host controller interface (sdhci) driver, the rest · Maintainers:
Andrew Jeffery, Ulf Hansson, Adrian Hunter, Linus Torvalds
From: Andrew Jeffery <redacted> [ 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@jms.id.au> Signed-off-by: Andrew Jeffery <redacted> Reviewed-by: Joel Stanley <joel@jms.id.au> Link: https://lore.kernel.org/r/20210607013020.85885-1-andrew@aj.id.au (local) Signed-off-by: Ulf Hansson <redacted> Signed-off-by: Sasha Levin <sashal@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 d001c51074a0..e4665a438ec5 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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