[PATCH V1 03/11] mmc: sdhci: add support for post tuning process

Sowjanya Komatineni
2019-03-02T05:20:46Z

This patch adds support for post tuning process needed for some hosts
to perform after successful completion of HW tuning.

Signed-off-by: Sowjanya Komatineni <skomatineni@nvidia.com>
---
drivers/mmc/host/sdhci.c | 6 +++++-
drivers/mmc/host/sdhci.h | 1 +
2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index e9e919218006..976d4d1e2400 100644
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -2392,8 +2392,12 @@ static int __sdhci_execute_tuning(struct sdhci_host *host, u32 opcode)

ctrl = sdhci_readw(host, SDHCI_HOST_CONTROL2);
if (!(ctrl & SDHCI_CTRL_EXEC_TUNING)) {
- if (ctrl & SDHCI_CTRL_TUNED_CLK)
+ if (ctrl & SDHCI_CTRL_TUNED_CLK) {
+ if (host->ops->post_tuning)
+ host->ops->post_tuning(host);
return 0; /* Success! */
+ }
+
break;
}

diff --git a/drivers/mmc/host/sdhci.h b/drivers/mmc/host/sdhci.h
index c80e0d6f9b10..236d67778645 100644
--- a/drivers/mmc/host/sdhci.h
+++ b/drivers/mmc/host/sdhci.h
@@ -639,6 +639,7 @@ struct sdhci_ops {
void (*reset)(struct sdhci_host *host, u8 mask);
int (*platform_execute_tuning)(struct sdhci_host *host, u32 opcode);
int (*get_max_tuning_loop_count)(struct sdhci_host *host);
+ void (*post_tuning)(struct sdhci_host *host);
void (*set_uhs_signaling)(struct sdhci_host *host, unsigned int uhs);
void (*hw_reset)(struct sdhci_host *host);
void (*adma_workaround)(struct sdhci_host *host, u32 intmask);
--
2.7.4