mmc: Add a deferred_probe() API
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>
diff --git a/drivers/mmc/mmc-uclass.c b/drivers/mmc/mmc-uclass.c
index 0b90a97..c75892a 100644
--- a/drivers/mmc/mmc-uclass.c
+++ b/drivers/mmc/mmc-uclass.c
@@ -138,6 +138,21 @@
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 b50fcbf..a347308 100644
--- a/drivers/mmc/mmc.c
+++ b/drivers/mmc/mmc.c
@@ -2845,7 +2845,9 @@
*/
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 8a9ea0b..be59ee7 100644
--- a/include/mmc.h
+++ b/include/mmc.h
@@ -410,6 +410,14 @@
#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
*
* @dev: Device to receive the command
@@ -492,6 +500,7 @@
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);
@@ -501,6 +510,7 @@
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 {