linux-kernel - [PATCH v2 2/2] arm64: dts: qcom: Fully describe fingerprint node on Trogdor

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Message-Id: <20221107191535.624371-3-swboyd@chromium.org>
Date:   Mon,  7 Nov 2022 11:15:35 -0800
From:   Stephen Boyd <swboyd@...omium.org>
To:     Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>
Cc:     linux-kernel@...r.kernel.org, patches@...ts.linux.dev,
        linux-arm-msm@...r.kernel.org,
        Douglas Anderson <dianders@...omium.org>,
        Matthias Kaehlcke <mka@...omium.org>,
        Alexandru M Stan <amstan@...omium.org>
Subject: [PATCH v2 2/2] arm64: dts: qcom: Fully describe fingerprint node on Trogdor

Update the fingerprint node on Trogdor to match the fingerprint DT
binding. This will allow us to drive the reset and boot gpios from the
driver when it is re-attached after flashing. We'll also be able to boot
the fingerprint processor if the BIOS isn't doing it for us.

Cc: Douglas Anderson <dianders@...omium.org>
Cc: Matthias Kaehlcke <mka@...omium.org>
Cc: Alexandru M Stan <amstan@...omium.org>
Signed-off-by: Stephen Boyd <swboyd@...omium.org>
---
 arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi | 20 ++++++++++++++++++--
 1 file changed, 18 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi b/arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi
index 4a5ea17a15ba..65601bea0797 100644
--- a/arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi
@@ -894,13 +894,16 @@ ap_spi_fp: &spi10 {
 	cs-gpios = <&tlmm 89 GPIO_ACTIVE_LOW>;
 
 	cros_ec_fp: ec@0 {
-		compatible = "google,cros-ec-spi";
+		compatible = "google,cros-ec-fp", "google,cros-ec-spi";
 		reg = <0>;
 		interrupt-parent = <&tlmm>;
 		interrupts = <4 IRQ_TYPE_LEVEL_LOW>;
 		pinctrl-names = "default";
-		pinctrl-0 = <&fp_to_ap_irq_l>;
+		pinctrl-0 = <&fp_to_ap_irq_l>, <&fp_rst_l>, <&fpmcu_boot0>;
+		boot0-gpios = <&tlmm 10 GPIO_ACTIVE_HIGH>;
+		reset-gpios = <&tlmm 22 GPIO_ACTIVE_LOW>;
 		spi-max-frequency = <3000000>;
+		vdd-supply = <&pp3300_fp_tp>;
 	};
 };
 
@@ -1226,6 +1229,13 @@ en_pp3300_hub: en-pp3300-hub-state {
 		bias-disable;
 	};
 
+	fp_rst_l: fp-rst-l-state {
+		pins = "gpio22";
+		function = "gpio";
+		bias-disable;
+		drive-strength = <2>;
+	};
+
 	fp_to_ap_irq_l: fp-to-ap-irq-l-state {
 		pins = "gpio4";
 		function = "gpio";
@@ -1235,6 +1245,12 @@ fp_to_ap_irq_l: fp-to-ap-irq-l-state {
 		bias-disable;
 	};
 
+	fpmcu_boot0: fpmcu-boot0-state {
+		pins = "gpio10";
+		function = "gpio";
+		bias-disable;
+	};
+
 	h1_ap_int_odl: h1-ap-int-odl-state {
 		pins = "gpio42";
 		function = "gpio";
-- 
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