mmc: Board-specific MMC power initializations
Some devices may use non-standard combinations of regulators to power MMC:
this allows these devices to provide a board-specific MMC power init function
to set everything up in their own way.
Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
Reviewed-by: Tom Rini <trini@ti.com>
diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c
index 44a4feb..8436bc7 100644
--- a/drivers/mmc/mmc.c
+++ b/drivers/mmc/mmc.c
@@ -1277,6 +1277,11 @@
}
#endif
+/* board-specific MMC power initializations. */
+__weak void board_mmc_power_init(void)
+{
+}
+
int mmc_start_init(struct mmc *mmc)
{
int err;
@@ -1293,6 +1298,8 @@
if (mmc->has_init)
return 0;
+ board_mmc_power_init();
+
/* made sure it's not NULL earlier */
err = mmc->cfg->ops->init(mmc);