* [PATCH v4 1/3] dt-bindings: input: touchscreen: edt-ft5x06: Add FocalTech FT3518
2026-01-20 21:40 [PATCH v4 0/3] Support FT3518 touchscreen in xiaomi-laurel Yedaya Katsman via B4 Relay
@ 2026-01-20 21:40 ` Yedaya Katsman via B4 Relay
2026-01-20 21:40 ` [PATCH v4 2/3] drivers: " Yedaya Katsman via B4 Relay
2026-01-20 21:40 ` [PATCH v4 3/3] arm64: dts: qcom: sm6125-xiaomi-laurel-sprout: Add Focaltech FT3518 touchscreen Yedaya Katsman via B4 Relay
2 siblings, 0 replies; 5+ messages in thread
From: Yedaya Katsman via B4 Relay @ 2026-01-20 21:40 UTC (permalink / raw)
To: Kamil Gołda, Rob Herring, Krzysztof Kozlowski, Conor Dooley,
Bjorn Andersson, Konrad Dybcio
Cc: linux-input, devicetree, linux-kernel, linux-arm-msm,
Yedaya Katsman
From: Yedaya Katsman <yedaya.ka@gmail.com>
Document FocalTech FT3518 support by adding the compatible.
Co-developed-by: Kamil Gołda <kamil.golda@protonmail.com>
Signed-off-by: Kamil Gołda <kamil.golda@protonmail.com>
Signed-off-by: Yedaya Katsman <yedaya.ka@gmail.com>
---
Documentation/devicetree/bindings/input/touchscreen/edt-ft5x06.yaml | 1 +
1 file changed, 1 insertion(+)
diff --git a/Documentation/devicetree/bindings/input/touchscreen/edt-ft5x06.yaml b/Documentation/devicetree/bindings/input/touchscreen/edt-ft5x06.yaml
index 7d3edb58f72d84ed19fb87fdd136c97f855aba00..6f90522de8c0afbe2d9d1e04578316350f66ec58 100644
--- a/Documentation/devicetree/bindings/input/touchscreen/edt-ft5x06.yaml
+++ b/Documentation/devicetree/bindings/input/touchscreen/edt-ft5x06.yaml
@@ -39,6 +39,7 @@ properties:
- edt,edt-ft5406
- edt,edt-ft5506
- evervision,ev-ft5726
+ - focaltech,ft3518
- focaltech,ft5426
- focaltech,ft5452
- focaltech,ft6236
--
2.52.0
^ permalink raw reply related [flat|nested] 5+ messages in thread* [PATCH v4 2/3] drivers: input: touchscreen: edt-ft5x06: Add FocalTech FT3518
2026-01-20 21:40 [PATCH v4 0/3] Support FT3518 touchscreen in xiaomi-laurel Yedaya Katsman via B4 Relay
2026-01-20 21:40 ` [PATCH v4 1/3] dt-bindings: input: touchscreen: edt-ft5x06: Add FocalTech FT3518 Yedaya Katsman via B4 Relay
@ 2026-01-20 21:40 ` Yedaya Katsman via B4 Relay
2026-01-20 21:40 ` [PATCH v4 3/3] arm64: dts: qcom: sm6125-xiaomi-laurel-sprout: Add Focaltech FT3518 touchscreen Yedaya Katsman via B4 Relay
2 siblings, 0 replies; 5+ messages in thread
From: Yedaya Katsman via B4 Relay @ 2026-01-20 21:40 UTC (permalink / raw)
To: Kamil Gołda, Rob Herring, Krzysztof Kozlowski, Conor Dooley,
Bjorn Andersson, Konrad Dybcio
Cc: linux-input, devicetree, linux-kernel, linux-arm-msm,
Yedaya Katsman, SzczurekYT
From: Yedaya Katsman <yedaya.ka@gmail.com>
The driver also works with FT3518, which supports up to 10 touch points.
Add compatible data for it.
Co-developed-by: SzczurekYT <szczurek@szczurek.yt>
Signed-off-by: SzczurekYT <szczurek@szczurek.yt>
Signed-off-by: Yedaya Katsman <yedaya.ka@gmail.com>
---
drivers/input/touchscreen/edt-ft5x06.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/input/touchscreen/edt-ft5x06.c b/drivers/input/touchscreen/edt-ft5x06.c
index bf498bd4dea9651ac939fe137b1c0f05e8557962..d0ab644be0069b5ab29ed037fa090a4279870193 100644
--- a/drivers/input/touchscreen/edt-ft5x06.c
+++ b/drivers/input/touchscreen/edt-ft5x06.c
@@ -1475,6 +1475,10 @@ static const struct edt_i2c_chip_data edt_ft5x06_data = {
.max_support_points = 5,
};
+static const struct edt_i2c_chip_data edt_ft3518_data = {
+ .max_support_points = 10,
+};
+
static const struct edt_i2c_chip_data edt_ft5452_data = {
.max_support_points = 5,
};
@@ -1503,6 +1507,7 @@ static const struct i2c_device_id edt_ft5x06_ts_id[] = {
{ .name = "edt-ft5x06", .driver_data = (long)&edt_ft5x06_data },
{ .name = "edt-ft5506", .driver_data = (long)&edt_ft5506_data },
{ .name = "ev-ft5726", .driver_data = (long)&edt_ft5506_data },
+ { .name = "ft3518", .driver_data = (long)&edt_ft3518_data },
{ .name = "ft5452", .driver_data = (long)&edt_ft5452_data },
/* Note no edt- prefix for compatibility with the ft6236.c driver */
{ .name = "ft6236", .driver_data = (long)&edt_ft6236_data },
@@ -1519,6 +1524,7 @@ static const struct of_device_id edt_ft5x06_of_match[] = {
{ .compatible = "edt,edt-ft5406", .data = &edt_ft5x06_data },
{ .compatible = "edt,edt-ft5506", .data = &edt_ft5506_data },
{ .compatible = "evervision,ev-ft5726", .data = &edt_ft5506_data },
+ { .compatible = "focaltech,ft3518", .data = &edt_ft3518_data },
{ .compatible = "focaltech,ft5426", .data = &edt_ft5506_data },
{ .compatible = "focaltech,ft5452", .data = &edt_ft5452_data },
/* Note focaltech vendor prefix for compatibility with ft6236.c */
--
2.52.0
^ permalink raw reply related [flat|nested] 5+ messages in thread* [PATCH v4 3/3] arm64: dts: qcom: sm6125-xiaomi-laurel-sprout: Add Focaltech FT3518 touchscreen
2026-01-20 21:40 [PATCH v4 0/3] Support FT3518 touchscreen in xiaomi-laurel Yedaya Katsman via B4 Relay
2026-01-20 21:40 ` [PATCH v4 1/3] dt-bindings: input: touchscreen: edt-ft5x06: Add FocalTech FT3518 Yedaya Katsman via B4 Relay
2026-01-20 21:40 ` [PATCH v4 2/3] drivers: " Yedaya Katsman via B4 Relay
@ 2026-01-20 21:40 ` Yedaya Katsman via B4 Relay
2026-01-22 13:52 ` Konrad Dybcio
2 siblings, 1 reply; 5+ messages in thread
From: Yedaya Katsman via B4 Relay @ 2026-01-20 21:40 UTC (permalink / raw)
To: Kamil Gołda, Rob Herring, Krzysztof Kozlowski, Conor Dooley,
Bjorn Andersson, Konrad Dybcio
Cc: linux-input, devicetree, linux-kernel, linux-arm-msm,
Yedaya Katsman
From: Yedaya Katsman <yedaya.ka@gmail.com>
Add device tree node for the Focaltech FT3518 touchscreen on
Xiaomi Mi A3 (laurel-sprout).
Note that gpio pin 83 for the regulator isn't documented downstream
except in the touchscreen node so it's not defined in the tlmm.
Enable qupv3_id_0 and i2c2 bus that the touchscreen is on.
Downstream references:
Link: https://github.com/MiCode/Xiaomi_Kernel_OpenSource/blob/laurel-r-oss/arch/arm64/boot/dts/qcom/trinket-pinctrl.dtsi
Link: https://github.com/MiCode/Xiaomi_Kernel_OpenSource/blob/laurel-r-oss/arch/arm64/boot/dts/qcom/laurel_sprout-qrd.dtsi
Co-developed-by: Kamil Gołda <kamil.golda@protonmail.com>
Signed-off-by: Kamil Gołda <kamil.golda@protonmail.com>
Signed-off-by: Yedaya Katsman <yedaya.ka@gmail.com>
---
.../boot/dts/qcom/sm6125-xiaomi-laurel-sprout.dts | 65 ++++++++++++++++++++++
1 file changed, 65 insertions(+)
diff --git a/arch/arm64/boot/dts/qcom/sm6125-xiaomi-laurel-sprout.dts b/arch/arm64/boot/dts/qcom/sm6125-xiaomi-laurel-sprout.dts
index 994fb0412fcbdf5466f87a325c48b697a37b514b..ea9dbc6927a14ca66da818b81aeb0c95ec3c2e7a 100644
--- a/arch/arm64/boot/dts/qcom/sm6125-xiaomi-laurel-sprout.dts
+++ b/arch/arm64/boot/dts/qcom/sm6125-xiaomi-laurel-sprout.dts
@@ -82,6 +82,18 @@ key-volume-up {
};
};
+ ts_vdd_supply: regulator-ts-vdd {
+ compatible = "regulator-fixed";
+ regulator-name = "ts_vdd_supply";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+
+ gpio = <&tlmm 83 GPIO_ACTIVE_HIGH>;
+ enable-active-high;
+
+ startup-delay-us = <70000>;
+ };
+
thermal-zones {
rf-pa0-thermal {
thermal-sensors = <&pm6125_adc_tm 0>;
@@ -128,6 +140,27 @@ &hsusb_phy1 {
status = "okay";
};
+&i2c2 {
+ status = "okay";
+
+ touchscreen@38 {
+ compatible = "focaltech,ft3518";
+ reg = <0x38>;
+ interrupts-extended = <&tlmm 88 IRQ_TYPE_EDGE_FALLING>;
+
+ vcc-supply = <&ts_vdd_supply>;
+
+ pinctrl-names = "default","sleep";
+ pinctrl-0 = <&ts_int_active &ts_reset_active>;
+ pinctrl-1 = <&ts_int_suspend &ts_reset_suspend>;
+
+ reset-gpios = <&tlmm 87 GPIO_ACTIVE_LOW>;
+
+ touchscreen-size-x = <720>;
+ touchscreen-size-y = <1560>;
+ };
+};
+
&pm6125_adc {
pinctrl-names = "default";
pinctrl-0 = <&camera_flash_therm &emmc_ufs_therm>;
@@ -220,6 +253,10 @@ &pon_resin {
status = "okay";
};
+&qupv3_id_0 {
+ status = "okay";
+};
+
&rpm_requests {
regulators-0 {
compatible = "qcom,rpm-pm6125-regulators";
@@ -387,6 +424,34 @@ &sdhc_2 {
&tlmm {
gpio-reserved-ranges = <22 2>, <28 6>;
+
+ ts_reset_active: pmx-ts-reset-active-state {
+ pins = "gpio87";
+ function = "gpio";
+ drive-strength = <8>;
+ bias-pull-up;
+ };
+
+ ts_reset_suspend: pmx-ts-reset-suspend-state {
+ pins = "gpio87";
+ function = "gpio";
+ drive-strength = <2>;
+ bias-pull-down;
+ };
+
+ ts_int_active: pmx-ts-int-active-state {
+ pins = "gpio88";
+ function = "gpio";
+ drive-strength = <8>;
+ bias-pull-up;
+ };
+
+ ts_int_suspend: pmx-ts-int-suspend-state {
+ pins = "gpio88";
+ function = "gpio";
+ drive-strength = <2>;
+ bias-pull-down;
+ };
};
&ufs_mem_hc {
--
2.52.0
^ permalink raw reply related [flat|nested] 5+ messages in thread