On 2023/7/2 20:41, Jonas Karlman wrote:
With the series "regulator: implement basic reference counter" [1], keeping regulator enablement in balance become more important.
Disable vqmmc-supply before signal voltage is changed to keep regulator enable counter in balance.
[1] https://patchwork.ozlabs.org/project/uboot/list/?series=351536
Signed-off-by: Jonas Karlman jonas@kwiboo.se
Reviewed-by: Kever Yang kever.yang@rock-chips.com
Thanks, - Kever
drivers/mmc/dw_mmc.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/drivers/mmc/dw_mmc.c b/drivers/mmc/dw_mmc.c index 5085a3b491da..400066fa99a2 100644 --- a/drivers/mmc/dw_mmc.c +++ b/drivers/mmc/dw_mmc.c @@ -509,6 +509,10 @@ static int dwmci_set_ios(struct mmc *mmc) if (mmc->vqmmc_supply) { int ret;
ret = regulator_set_enable_if_allowed(mmc->vqmmc_supply, false);if (ret)return ret;- if (mmc->signal_voltage == MMC_SIGNAL_VOLTAGE_180) regulator_set_value(mmc->vqmmc_supply, 1800000); else