mmc: dw_mmc: k3: UHS-SD card for Hisilicon Hikey

Hisilicon Hikey have no tuning function in dw_mmc-k3.c,
so we must do the tuning function stub when we init UHS card.

Signed-off-by: Jin Guojun <kid.jin@hisilicon.com>
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

diff --git a/drivers/mmc/host/dw_mmc-k3.c b/drivers/mmc/host/dw_mmc-k3.c
index 8e9d886..6247894 100644 (file)
--- a/drivers/mmc/host/dw_mmc-k3.c
+++ b/drivers/mmc/host/dw_mmc-k3.c
@@ -131,11 +131,17 @@ static void dw_mci_hi6220_set_ios(struct dw_mci *host, struct mmc_ios *ios)
        host->bus_hz = clk_get_rate(host->biu_clk);
 }
 
+static int dw_mci_hi6220_execute_tuning(struct dw_mci_slot *slot, u32 opcode)
+{
+       return 0;
+}
+
 static const struct dw_mci_drv_data hi6220_data = {
        .caps                   = dw_mci_hi6220_caps,
        .switch_voltage         = dw_mci_hi6220_switch_voltage,
        .set_ios                = dw_mci_hi6220_set_ios,
        .parse_dt               = dw_mci_hi6220_parse_dt,
+       .execute_tuning         = dw_mci_hi6220_execute_tuning,
 };
 
 static const struct of_device_id dw_mci_k3_match[] = {