mmc: usdhi6rol0: add support for UHS modes

Add a start_signal_voltage_switch() operation to support enabling of
UHS modes.

Signed-off-by: Lars Persson <larper@axis.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

diff --git a/drivers/mmc/host/usdhi6rol0.c b/drivers/mmc/host/usdhi6rol0.c
index e9c8dfa..743e200 100644 (file)
--- a/drivers/mmc/host/usdhi6rol0.c
+++ b/drivers/mmc/host/usdhi6rol0.c
@@ -1147,12 +1147,22 @@ static void usdhi6_enable_sdio_irq(struct mmc_host *mmc, int enable)
        }
 }
 
+static int usdhi6_sig_volt_switch(struct mmc_host *mmc, struct mmc_ios *ios)
+{
+       int ret;
+
+       ret = mmc_regulator_set_vqmmc(mmc, ios);
+
+       return ret;
+}
+
 static struct mmc_host_ops usdhi6_ops = {
        .request        = usdhi6_request,
        .set_ios        = usdhi6_set_ios,
        .get_cd         = usdhi6_get_cd,
        .get_ro         = usdhi6_get_ro,
        .enable_sdio_irq = usdhi6_enable_sdio_irq,
+       .start_signal_voltage_switch = usdhi6_sig_volt_switch,
 };
 
 /*                     State machine handlers                          */