At http://www.mail-archive.com/linux-mmc@xxxxxxxxxxxxxxx/msg08371.html we found and fixed a bug where mmc's runtime power management functions were not being called. We have now also made improvements to the SDIO powerup routine which could possibly mask this kind of issue in future. Add debug messages to the runtime PM hooks so that it is easy to verify if and when runtime PM is happening. Signed-off-by: Daniel Drake <dsd@xxxxxxxxxx> --- drivers/mmc/core/core.c | 8 ++++++++ 1 files changed, 8 insertions(+), 0 deletions(-) For linux-3.1. diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c index 0a04886..ad0c55a 100644 --- a/drivers/mmc/core/core.c +++ b/drivers/mmc/core/core.c @@ -1664,6 +1664,10 @@ int mmc_power_save_host(struct mmc_host *host) { int ret = 0; +#ifdef CONFIG_MMC_DEBUG + pr_info("%s: %s: powering down\n", mmc_hostname(host), __func__); +#endif + mmc_bus_get(host); if (!host->bus_ops || host->bus_dead || !host->bus_ops->power_restore) { @@ -1686,6 +1690,10 @@ int mmc_power_restore_host(struct mmc_host *host) { int ret; +#ifdef CONFIG_MMC_DEBUG + pr_info("%s: %s: powering up\n", mmc_hostname(host), __func__); +#endif + mmc_bus_get(host); if (!host->bus_ops || host->bus_dead || !host->bus_ops->power_restore) { -- 1.7.6 -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
