diff options
| author | Pradyot Kumar Nayak <pradyot.nayak@oss.qualcomm.com> | 2026-05-22 15:26:39 +0530 |
|---|---|---|
| committer | Bjorn Andersson <andersson@kernel.org> | 2026-07-06 21:50:22 -0500 |
| commit | f64ef325f1d9ca9d005b7124c2bf065bb0b99c3d (patch) | |
| tree | d68da2cf0a2dc02e34729467823f3e39f8c2d778 | |
| parent | eca50d95b60cdcabb82a8e1b727fad2547e52f1d (diff) | |
arm64: dts: glymur-crd: Add reset GPIO to touchscreen node
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.
Error Logs:
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
Add the reset GPIO so the driver can deassert the line on resume,
restoring I2C communication with the device.
Fixes: e6bf559f7eb9 ("arm64: dts: qcom: glymur-crd: Enable keyboard, trackpad and touchscreen")
Signed-off-by: Pradyot Kumar Nayak <pradyot.nayak@oss.qualcomm.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20260522-arm64-dts-glymur-crd-add-reset-gpio-to-touchscreen-v1-1-c7653924acdc@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
| -rw-r--r-- | arch/arm64/boot/dts/qcom/glymur-crd.dtsi | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/qcom/glymur-crd.dtsi b/arch/arm64/boot/dts/qcom/glymur-crd.dtsi index db6f5419b4bc..7d3c6bbd31d2 100644 --- a/arch/arm64/boot/dts/qcom/glymur-crd.dtsi +++ b/arch/arm64/boot/dts/qcom/glymur-crd.dtsi @@ -640,6 +640,8 @@ vdd-supply = <&vreg_misc_3p3>; vddl-supply = <&vreg_l15b_e0_1p8>; + reset-gpios = <&tlmm 48 GPIO_ACTIVE_LOW>; + pinctrl-0 = <&ts0_default>; pinctrl-names = "default"; }; |