From: AKASHI Takahiro <takahiro.akashi@xxxxxxxxxx>
This "post" hook for mmc_attach_sd() will be required to enable UHS-II
support, at least, on GL9755.
Signed-off-by: Ben Chuang <ben.chuang@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: AKASHI Takahiro <takahiro.akashi@xxxxxxxxxx>
---
drivers/mmc/core/sd.c | 6 ++++++
include/linux/mmc/host.h | 1 +
2 files changed, 7 insertions(+)
diff --git a/drivers/mmc/core/sd.c b/drivers/mmc/core/sd.c
index cab4725209c1..975987fb02a1 100644
--- a/drivers/mmc/core/sd.c
+++ b/drivers/mmc/core/sd.c
@@ -1855,6 +1855,12 @@ int mmc_attach_sd(struct mmc_host *host)
goto remove_card;
mmc_claim_host(host);
+
+ /* TODO: Is this the right place? */
+ if ((host->flags & MMC_UHS2_INITIALIZED) &&
+ host->ops->uhs2_post_attach_sd)
+ host->ops->uhs2_post_attach_sd(host);
+
return 0;
remove_card:
diff --git a/include/linux/mmc/host.h b/include/linux/mmc/host.h
index cf5adf26b6e4..e58be4ccb308 100644
--- a/include/linux/mmc/host.h
+++ b/include/linux/mmc/host.h
@@ -279,6 +279,7 @@ struct mmc_host_ops {
int (*uhs2_set_reg)(struct mmc_host *host, enum sd_uhs2_operation act);
int (*uhs2_disable_clk)(struct mmc_host *host);
int (*uhs2_enable_clk)(struct mmc_host *host);
+ void (*uhs2_post_attach_sd)(struct mmc_host *host);
/*
* The uhs2_control callback is used to execute SD UHS-II specific
--
2.25.1
