diff options
Diffstat (limited to 'dts/src/arm64/qcom/sc7180-idp.dts')
-rw-r--r-- | dts/src/arm64/qcom/sc7180-idp.dts | 66 |
1 files changed, 59 insertions, 7 deletions
diff --git a/dts/src/arm64/qcom/sc7180-idp.dts b/dts/src/arm64/qcom/sc7180-idp.dts index d8b550723b..e77a792603 100644 --- a/dts/src/arm64/qcom/sc7180-idp.dts +++ b/dts/src/arm64/qcom/sc7180-idp.dts @@ -346,6 +346,13 @@ &uart3 { status = "okay"; + /delete-property/interrupts; + interrupts-extended = <&intc GIC_SPI 604 IRQ_TYPE_LEVEL_HIGH>, + <&tlmm 41 IRQ_TYPE_EDGE_FALLING>; + + pinctrl-names = "default", "sleep"; + pinctrl-1 = <&qup_uart3_sleep>; + bluetooth: wcn3990-bt { compatible = "qcom,wcn3990-bt"; vddio-supply = <&vreg_l10a_1p8>; @@ -353,7 +360,6 @@ vddrf-supply = <&vreg_l2c_1p3>; vddch0-supply = <&vreg_l10c_3p3>; max-speed = <3200000>; - clocks = <&rpmhcc RPMH_RF_CLK2>; }; }; @@ -474,32 +480,30 @@ &qup_uart3_default { pinconf-cts { /* - * Configure a pull-down on 38 (CTS) to match the pull of + * Configure a pull-down on CTS to match the pull of * the Bluetooth module. */ pins = "gpio38"; bias-pull-down; - output-high; }; pinconf-rts { - /* We'll drive 39 (RTS), so no pull */ + /* We'll drive RTS, so no pull */ pins = "gpio39"; drive-strength = <2>; bias-disable; }; pinconf-tx { - /* We'll drive 40 (TX), so no pull */ + /* We'll drive TX, so no pull */ pins = "gpio40"; drive-strength = <2>; bias-disable; - output-high; }; pinconf-rx { /* - * Configure a pull-up on 41 (RX). This is needed to avoid + * Configure a pull-up on RX. This is needed to avoid * garbage data when the TX pin of the Bluetooth module is * in tri-state (module powered off or not driving the * signal yet). @@ -547,3 +551,51 @@ }; }; +&tlmm { + qup_uart3_sleep: qup-uart3-sleep { + pinmux { + pins = "gpio38", "gpio39", + "gpio40", "gpio41"; + function = "gpio"; + }; + + pinconf-cts { + /* + * Configure a pull-down on CTS to match the pull of + * the Bluetooth module. + */ + pins = "gpio38"; + bias-pull-down; + }; + + pinconf-rts { + /* + * Configure pull-down on RTS. As RTS is active low + * signal, pull it low to indicate the BT SoC that it + * can wakeup the system anytime from suspend state by + * pulling RX low (by sending wakeup bytes). + */ + pins = "gpio39"; + bias-pull-down; + }; + + pinconf-tx { + /* + * Configure pull-up on TX when it isn't actively driven + * to prevent BT SoC from receiving garbage during sleep. + */ + pins = "gpio40"; + bias-pull-up; + }; + + pinconf-rx { + /* + * Configure a pull-up on RX. This is needed to avoid + * garbage data when the TX pin of the Bluetooth module + * is floating which may cause spurious wakeups. + */ + pins = "gpio41"; + bias-pull-up; + }; + }; +}; |