Re: [PATCH v4 2/2] arm64: dts: qcom: glymur-crd: Add FocalTech ft3d81 touchscreen support
Abel Vesa <[email protected]> Tue, 4 Aug 2026 16:22:20 +0300
| Newsgroups | org.kernel.vger.linux-input,org.kernel.vger.linux-arm-msm,org.kernel.vger.linux-devicetree,org.kernel.vger.linux-kernel |
|---|---|
| Message-ID | <wj5vpe7lhcvvj42wndplekctfjegqpwzupwyqmaw6wf6rhgi6b@maii6v7rz6l3> |
On 26-07-17 17:28:35, Pradyot Kumar Nayak wrote:
> 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: e6bf559f7eb9 ("arm64: dts: qcom: glymur-crd: Enable keyboard, trackpad and touchscreen")
> Fixes: f64ef325f1d9 ("arm64: dts: glymur-crd: Add reset GPIO to touchscreen node")
>
> Reviewed-by: Dmitry Baryshkov <[email protected]>
> Reviewed-by: Konrad Dybcio <[email protected]>
Reviewed-by: Abel Vesa <[email protected]>