Add a deferred_probe() API for platforms that want to do some configurations just before starting to enumerate the device.
Signed-off-by: Faiz Abbas faiz_abbas@ti.com --- drivers/mmc/mmc-uclass.c | 15 +++++++++++++++ drivers/mmc/mmc.c | 4 +++- include/mmc.h | 10 ++++++++++ 3 files changed, 28 insertions(+), 1 deletion(-)
diff --git a/drivers/mmc/mmc-uclass.c b/drivers/mmc/mmc-uclass.c index 0b90a97650..c75892a72c 100644 --- a/drivers/mmc/mmc-uclass.c +++ b/drivers/mmc/mmc-uclass.c @@ -138,6 +138,21 @@ int mmc_host_power_cycle(struct mmc *mmc) return dm_mmc_host_power_cycle(mmc->dev); }
+int dm_mmc_deferred_probe(struct udevice *dev) +{ + struct dm_mmc_ops *ops = mmc_get_ops(dev); + + if (ops->deferred_probe) + return ops->deferred_probe(dev); + + return 0; +} + +int mmc_deferred_probe(struct mmc *mmc) +{ + return dm_mmc_deferred_probe(mmc->dev); +} + int mmc_of_parse(struct udevice *dev, struct mmc_config *cfg) { int val; diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c index b50fcbf6cf..a347308976 100644 --- a/drivers/mmc/mmc.c +++ b/drivers/mmc/mmc.c @@ -2845,7 +2845,9 @@ int mmc_start_init(struct mmc *mmc) */ mmc->host_caps = mmc->cfg->host_caps | MMC_CAP(SD_LEGACY) | MMC_CAP(MMC_LEGACY) | MMC_MODE_1BIT; - +#if CONFIG_IS_ENABLED(DM_MMC) + mmc_deferred_probe(mmc); +#endif #if !defined(CONFIG_MMC_BROKEN_CD) no_card = mmc_getcd(mmc) == 0; #else diff --git a/include/mmc.h b/include/mmc.h index d0fa7689c9..f001776285 100644 --- a/include/mmc.h +++ b/include/mmc.h @@ -407,6 +407,14 @@ struct mmc;
#if CONFIG_IS_ENABLED(DM_MMC) struct dm_mmc_ops { + /** + * deferred_probe() - Some configurations that need to be deferred + * to just before enumerating the device + * + * @dev: Device to init + * @return 0 if Ok, -ve if error + */ + int (*deferred_probe)(struct udevice *dev); /** * send_cmd() - Send a command to the MMC device * @@ -490,6 +498,7 @@ int dm_mmc_get_wp(struct udevice *dev); int dm_mmc_execute_tuning(struct udevice *dev, uint opcode); int dm_mmc_wait_dat0(struct udevice *dev, int state, int timeout_us); int dm_mmc_host_power_cycle(struct udevice *dev); +int dm_mmc_deferred_probe(struct udevice *dev);
/* Transition functions for compatibility */ int mmc_set_ios(struct mmc *mmc); @@ -499,6 +508,7 @@ int mmc_execute_tuning(struct mmc *mmc, uint opcode); int mmc_wait_dat0(struct mmc *mmc, int state, int timeout_us); int mmc_set_enhanced_strobe(struct mmc *mmc); int mmc_host_power_cycle(struct mmc *mmc); +int mmc_deferred_probe(struct mmc *mmc);
#else struct mmc_ops {