mmc: core: Break out start_signal_voltage_switch
Allow callers to access the start_signal_voltage_switch host_ops
member without going through any cmd11 logic. This is mostly a
preparation for the following signal voltage switch patch.
Also, reset ios.signal_voltage to its original value if
start_signal_voltage_switch fails.
Signed-off-by: Johan Rudholm <johan.rudholm@stericsson.com>
Acked-by: Ulf Hansson <ulf.hansson@linaro.org>
Tested-by: Wei WANG <wei_wang@realsil.com.cn>
Signed-off-by: Chris Ball <cjb@laptop.org>
diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c
index 0d7a979..8a3ad60 100644
--- a/drivers/mmc/core/mmc.c
+++ b/drivers/mmc/core/mmc.c
@@ -769,11 +769,11 @@
if (card->ext_csd.card_type & EXT_CSD_CARD_TYPE_SDR_1_2V &&
host->caps2 & MMC_CAP2_HS200_1_2V_SDR)
- err = mmc_set_signal_voltage(host, MMC_SIGNAL_VOLTAGE_120, 0);
+ err = __mmc_set_signal_voltage(host, MMC_SIGNAL_VOLTAGE_120);
if (err && card->ext_csd.card_type & EXT_CSD_CARD_TYPE_SDR_1_8V &&
host->caps2 & MMC_CAP2_HS200_1_8V_SDR)
- err = mmc_set_signal_voltage(host, MMC_SIGNAL_VOLTAGE_180, 0);
+ err = __mmc_set_signal_voltage(host, MMC_SIGNAL_VOLTAGE_180);
/* If fails try again during next card power cycle */
if (err)
@@ -1221,8 +1221,8 @@
* WARNING: eMMC rules are NOT the same as SD DDR
*/
if (ddr == MMC_1_2V_DDR_MODE) {
- err = mmc_set_signal_voltage(host,
- MMC_SIGNAL_VOLTAGE_120, 0);
+ err = __mmc_set_signal_voltage(host,
+ MMC_SIGNAL_VOLTAGE_120);
if (err)
goto err;
}