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arm64: dts: qcom: glymur-crd: Add FocalTech ft3d81 touchscreen support

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The touchscreen module on Glymur/Mahua CRDs is different from
the one used on Hamoa CRDs and requires the reset-gpios to be wired to
the device. Without this in place the reset line will remain
permanently asserted during resume leaving the device offline and causing
all I2C transactions to fail with -ENXIO.

i2c_hid_of 3-0038: failed to change power setting.
i2c_hid_of 3-0038: PM: dpm_run_callback():
i2c_hid_core_pm_resume [i2c_hid] returns -6
i2c_hid_of 3-0038: PM: failed to resume async: error -6

The touchscreen on Glymur/Mahua-CRD is a focaltech ft3d81,
which is hardware-compatible with the ft8112.
we have added the required change in DT.

Fixes: e6bf559f7e ("arm64: dts: qcom: glymur-crd: Enable keyboard, trackpad and touchscreen")
Fixes: f64ef325f1 ("arm64: dts: glymur-crd: Add reset GPIO to touchscreen node")

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Signed-off-by: Pradyot Kumar Nayak <pradyot.nayak@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20260717-add_focaltech_ft3d81_touchscreen_support-v4-2-5dd091e25801@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
This commit is contained in:
Pradyot Kumar Nayak 2026-07-17 17:28:35 +05:30 committed by Bjorn Andersson
parent 0cd1b39cf2
commit 67b5818eca
1 changed files with 3 additions and 4 deletions
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7
arch/arm64/boot/dts/qcom/glymur-crd.dtsi
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@ -679,14 +679,13 @@ &i2c8 {
status = "okay";
touchscreen@38 {
compatible = "hid-over-i2c";
compatible = "focaltech,ft3d81", "focaltech,ft8112";
reg = <0x38>;
hid-descr-addr = <0x1>;
interrupts-extended = <&tlmm 51 IRQ_TYPE_LEVEL_LOW>;
vdd-supply = <&vreg_misc_3p3>;
vddl-supply = <&vreg_l15b_e0_1p8>;
vcc33-supply = <&vreg_misc_3p3>;
vccio-supply = <&vreg_l15b_e0_1p8>;
reset-gpios = <&tlmm 48 GPIO_ACTIVE_LOW>;