[PATCH] mmc: host: sdhci: Fix console flooding when there is no proper card detection
From: "Maxin B. John" With 3.9.0-rc8 kernel in p2020rdb powerpc target, the console gets flooded with this message without any SD-Cards present: "mmc0: Timeout waiting for hardware interrupt" Since the driver doesn't implement proper card detection, it assumes that card is always present. This quick-n-dirty patch removes this console flooding. In an ideal world, the driver should have "cd-gpio" support. Signed-off-by: Maxin B. John --- drivers/mmc/host/sdhci.c |8 1 file changed, 8 insertions(+) diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c index 51bbba4..3347864 100644 --- a/drivers/mmc/host/sdhci.c +++ b/drivers/mmc/host/sdhci.c @@ -2131,10 +2131,18 @@ static void sdhci_timeout_timer(unsigned long data) spin_lock_irqsave(>lock, flags); if (host->mrq) { + /* +* If the driver doesn't implement proper card detection, +* we shouldn't flood the console with Timeout error messages. +*/ + if (host->quirks & SDHCI_QUIRK_BROKEN_CARD_DETECTION) + goto data_check; + pr_err("%s: Timeout waiting for hardware " "interrupt.\n", mmc_hostname(host->mmc)); sdhci_dumpregs(host); +data_check: if (host->data) { host->data->error = -ETIMEDOUT; sdhci_finish_data(host); -- 1.7.10.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
[PATCH] mmc: host: sdhci: Fix console flooding when there is no proper card detection
From: Maxin B. John maxin.j...@enea.com With 3.9.0-rc8 kernel in p2020rdb powerpc target, the console gets flooded with this message without any SD-Cards present: mmc0: Timeout waiting for hardware interrupt Since the driver doesn't implement proper card detection, it assumes that card is always present. This quick-n-dirty patch removes this console flooding. In an ideal world, the driver should have cd-gpio support. Signed-off-by: Maxin B. John maxin.j...@enea.com --- drivers/mmc/host/sdhci.c |8 1 file changed, 8 insertions(+) diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c index 51bbba4..3347864 100644 --- a/drivers/mmc/host/sdhci.c +++ b/drivers/mmc/host/sdhci.c @@ -2131,10 +2131,18 @@ static void sdhci_timeout_timer(unsigned long data) spin_lock_irqsave(host-lock, flags); if (host-mrq) { + /* +* If the driver doesn't implement proper card detection, +* we shouldn't flood the console with Timeout error messages. +*/ + if (host-quirks SDHCI_QUIRK_BROKEN_CARD_DETECTION) + goto data_check; + pr_err(%s: Timeout waiting for hardware interrupt.\n, mmc_hostname(host-mmc)); sdhci_dumpregs(host); +data_check: if (host-data) { host-data-error = -ETIMEDOUT; sdhci_finish_data(host); -- 1.7.10.4 -- To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/