diff options
Diffstat (limited to 'drivers/mmc/mmc.c')
| -rw-r--r-- | drivers/mmc/mmc.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c index 7e702c3ae85..96b0e20d669 100644 --- a/drivers/mmc/mmc.c +++ b/drivers/mmc/mmc.c @@ -3039,6 +3039,20 @@ static int mmc_complete_init(struct mmc *mmc) return err; } +static void __maybe_unused mmc_cyclic_cd_poll(struct cyclic_info *c) +{ + struct mmc *m = CONFIG_IS_ENABLED(CYCLIC, (container_of(c, struct mmc, cyclic)), (NULL)); + + if (!m->has_init) + return; + + if (mmc_getcd(m)) + return; + + mmc_deinit(m); + m->has_init = 0; +} + int mmc_init(struct mmc *mmc) { int err = 0; @@ -3061,6 +3075,14 @@ int mmc_init(struct mmc *mmc) if (err) pr_info("%s: %d, time %lu\n", __func__, err, get_timer(start)); + if (CONFIG_IS_ENABLED(CYCLIC, (!mmc->cyclic.func), (NULL))) { + /* Register cyclic function for card detect polling */ + CONFIG_IS_ENABLED(CYCLIC, (cyclic_register(&mmc->cyclic, + mmc_cyclic_cd_poll, + 100 * 1000, + mmc->cfg->name))); + } + return err; } @@ -3068,6 +3090,9 @@ int mmc_deinit(struct mmc *mmc) { u32 caps_filtered; + if (CONFIG_IS_ENABLED(CYCLIC, (mmc->cyclic.func), (NULL))) + CONFIG_IS_ENABLED(CYCLIC, (cyclic_unregister(&mmc->cyclic))); + if (!CONFIG_IS_ENABLED(MMC_UHS_SUPPORT) && !CONFIG_IS_ENABLED(MMC_HS200_SUPPORT) && !CONFIG_IS_ENABLED(MMC_HS400_SUPPORT)) |