mmc: dw_mmc-k3: Hisilicon Hikey have no tuning function in
dw_mmc-k3.c,so we must do the tuning function stub when we init UHS card.
V1:add .prepare_command in dw_mmc.c
V2:delete .prepare_command, add err = 0 in dw_mci_execute_tuning
V3:delete err = 0 in dw_mci_execute_tuning,add .execute_tuning in
dw_mmc-k3.c
V4:add "linux-mmc@xxxxxxxxxxxxxxx", patch version, Changelog, etc..
Signed-off-by: Jin Guojun <kid.jin@xxxxxxxxxxxxx>
---
drivers/mmc/host/dw_mmc-k3.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/mmc/host/dw_mmc-k3.c b/drivers/mmc/host/dw_mmc-k3.c
index 8e9d886..6247894 100644
--- 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[] = {
--
1.9.1
--
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