From: Ben Chuang <ben.chuang@xxxxxxxxxxxxxxxxxxx>
This "pre" hook for detect_init(), uhs2_pre_detect_init, 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>
Acked-by: Adrian Hunter <adrian.hunter@xxxxxxxxx>
---
drivers/mmc/host/sdhci-uhs2.c | 3 +++
drivers/mmc/host/sdhci.h | 1 +
2 files changed, 4 insertions(+)
diff --git a/drivers/mmc/host/sdhci-uhs2.c b/drivers/mmc/host/sdhci-uhs2.c
index 310a8d18c2f4..3342aac164cb 100644
--- a/drivers/mmc/host/sdhci-uhs2.c
+++ b/drivers/mmc/host/sdhci-uhs2.c
@@ -417,6 +417,9 @@ static int sdhci_uhs2_do_detect_init(struct mmc_host *mmc)
DBG("Begin do uhs2 detect init.\n");
+ if (host->ops && host->ops->uhs2_pre_detect_init)
+ host->ops->uhs2_pre_detect_init(host);
+
if (sdhci_uhs2_interface_detect(host)) {
pr_warn("%s: cannot detect UHS2 interface.\n", mmc_hostname(host->mmc));
return -EIO;
diff --git a/drivers/mmc/host/sdhci.h b/drivers/mmc/host/sdhci.h
index 91b52fca1002..2180cd21b5f3 100644
--- a/drivers/mmc/host/sdhci.h
+++ b/drivers/mmc/host/sdhci.h
@@ -724,6 +724,7 @@ struct sdhci_ops {
struct mmc_request *mrq);
void (*dump_vendor_regs)(struct sdhci_host *host);
void (*dump_uhs2_regs)(struct sdhci_host *host);
+ void (*uhs2_pre_detect_init)(struct sdhci_host *host);
};
#ifdef CONFIG_MMC_SDHCI_IO_ACCESSORS
--
2.25.1
