From: Ben Chuang <ben.chuang@xxxxxxxxxxxxxxxxxxx>
Introduce a uhs2_pre_detect_init function before detect uhs2 interface.
Signed-off-by: Ben Chuang <ben.chuang@xxxxxxxxxxxxxxxxxxx>
---
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 e9c42894185a..9f53b7b938b9 100644
--- a/drivers/mmc/host/sdhci-uhs2.c
+++ b/drivers/mmc/host/sdhci-uhs2.c
@@ -506,6 +506,9 @@ int sdhci_uhs2_do_detect_init(struct sdhci_host *host)
DBG("%s: begin UHS2 init.\n", __func__);
spin_lock_irqsave(&host->lock, flags);
+ 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));
diff --git a/drivers/mmc/host/sdhci.h b/drivers/mmc/host/sdhci.h
index 7f779ac81931..08ee4c805474 100644
--- a/drivers/mmc/host/sdhci.h
+++ b/drivers/mmc/host/sdhci.h
@@ -906,6 +906,7 @@ struct sdhci_ops {
void (*voltage_switch)(struct sdhci_host *host);
void (*adma_write_desc)(struct sdhci_host *host, void **desc,
dma_addr_t addr, int len, unsigned int cmd);
+ void (*uhs2_pre_detect_init)(struct sdhci_host *host);
void (*uhs2_post_attach_sd)(struct sdhci_host *host);
};
--
2.24.1
