Some distributions build with CONFIG_REGULATOR_DUMMY=y -- this makes regulator setup succeed harmlessly, but then trying to set the voltage on the dummy regulator will fail as below:
[ 6.413866] sdhci-pci 0000:03:00.0: SDHCI controller found [1180:e822] (rev 0) [ 6.414081] _regulator_get: 0000:03:00.0 supply vmmc not found, using dummy regulator [ 6.415252] mmc0: SDHCI controller on PCI [0000:03:00.0] using DMA [ 6.415294] sdhci-pci 0000:03:00.0: could not set regulator OCR (-22) [ 6.444241] sdhci-pci 0000:03:00.0: could not set regulator OCR (-22) [ 6.473648] sdhci-pci 0000:03:00.0: could not set regulator OCR (-22) [..] Since this isn't an error in this case, move the error to pr_debug(). Reference: https://bugs.archlinux.org/task/29008 Signed-off-by: Chris Ball <[email protected]> --- drivers/mmc/core/core.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c index 835c9f0..30d9357 100644 --- a/drivers/mmc/core/core.c +++ b/drivers/mmc/core/core.c @@ -1017,8 +1017,9 @@ int mmc_regulator_set_ocr(struct mmc_host *mmc, } if (result) - dev_err(mmc_dev(mmc), - "could not set regulator OCR (%d)\n", result); + pr_debug("%s: could not set regulator OCR (%d)\n", + mmc_hostname(mmc), result); + return result; } EXPORT_SYMBOL_GPL(mmc_regulator_set_ocr); -- Chris Ball <[email protected]> <http://printf.net/> One Laptop Per Child -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
