diff options
| author | Justin Klaassen <justin@tidylabs.net> | 2025-05-23 16:53:40 +0000 |
|---|---|---|
| committer | Kever Yang <kever.yang@rock-chips.com> | 2025-06-06 17:21:54 +0800 |
| commit | 2abd7fff9ebf08d51614c58e824d184ebe550404 (patch) | |
| tree | e350ac69e8d5d05e48cbbe8124f35f23964fc6c4 | |
| parent | f8f865ec0b17d756e10d4088bff1814744044dd3 (diff) | |
rockchip: rk3399-nanopi-4: Allow MMC driver to control SD regulators
This change removes the "regulator-always-on" property from the
"vcc3v0_sd" (vmmc-supply) and "vcc_sdio" (vqmmc-supply) regulators,
which otherwise prevents the MMC driver from being able to power cycle
the SD card as part of the initialization procedure.
It also removes the "regulator-boot-on" from the "vcc_sdio" regulator,
which could theoretically damage a SD card that is already initialized
in a low voltage mode.
Signed-off-by: Justin Klaassen <justin@tidylabs.net>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
| -rw-r--r-- | arch/arm/dts/rk3399-nanopi4-u-boot.dtsi | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/arm/dts/rk3399-nanopi4-u-boot.dtsi b/arch/arm/dts/rk3399-nanopi4-u-boot.dtsi index 75736124996..ba2b73223d4 100644 --- a/arch/arm/dts/rk3399-nanopi4-u-boot.dtsi +++ b/arch/arm/dts/rk3399-nanopi4-u-boot.dtsi @@ -19,8 +19,11 @@ &vcc3v0_sd { bootph-pre-ram; + /delete-property/ regulator-always-on; }; &vcc_sdio { + /delete-property/ regulator-always-on; + /delete-property/ regulator-boot-on; regulator-init-microvolt = <3000000>; }; |