WLAN rail was leaking power during RBSC/sleep even after turning BT off.
Change sleep pinctrl configuration to handle same.
Signed-off-by: Vijaya Krishna Nivarthi <quic_vnivarth@xxxxxxxxxxx>
---
v4: modify subject of patch to indicate file it is applying to
v3: apply same change to active state and other sc7280*.dts* as well
v2: used bias-bus-hold as per review comments
v1: intial patch used bias-disable for sleep pinctrl in sc7280-idp only
---
arch/arm64/boot/dts/qcom/sc7280-qcard.dtsi | 13 ++++++++-----
1 file changed, 8 insertions(+), 5 deletions(-)
diff --git a/arch/arm64/boot/dts/qcom/sc7280-qcard.dtsi b/arch/arm64/boot/dts/qcom/sc7280-qcard.dtsi
index b833ba1..602ebd4 100644
--- a/arch/arm64/boot/dts/qcom/sc7280-qcard.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc7280-qcard.dtsi
@@ -398,8 +398,11 @@ mos_bt_uart: &uart7 {
/* For mos_bt_uart */
&qup_uart7_cts {
- /* Configure a pull-down on CTS to match the pull of the Bluetooth module. */
- bias-pull-down;
+ /*
+ * Configure a bias-bus-hold on CTS to lower power usage
+ * when BT is turned off.
+ */
+ bias-bus-hold;
};
/* For mos_bt_uart */
@@ -490,10 +493,10 @@ mos_bt_uart: &uart7 {
pins = "gpio28";
function = "gpio";
/*
- * Configure a pull-down on CTS to match the pull of
- * the Bluetooth module.
+ * Configure a bias-bus-hold on CTS to lower power usage
+ * when BT is turned off.
*/
- bias-pull-down;
+ bias-bus-hold;
};
/* For mos_bt_uart */
--
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