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Diffstat (limited to 'dts/src/arm64/qcom/sc7180-idp.dts')
-rw-r--r--dts/src/arm64/qcom/sc7180-idp.dts66
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;
+ };
+ };
+};