On Fri, Aug 30, 2024 at 11:09 AM Stephan Gerhold stephan.gerhold@linaro.org wrote:
On X1E80100, GPIO interrupts for wakeup-capable pins have been broken since the introduction of the pinctrl driver. This prevents keyboard and touchpad from working on most of the X1E laptops. So far we have worked around this by manually building a kernel with the "wakeup-parent" removed from the pinctrl node in the device tree, but we cannot expect all users to do that.
Implement a similar workaround in the driver by clearing the wakeirq_map for X1E80100. This avoids using the PDC wakeup parent for all GPIOs and handles the interrupts directly in the pinctrl driver instead.
The PDC driver needs additional changes to support X1E80100 properly. Adding a workaround separately first allows to land the necessary PDC changes through the normal release cycle, while still solving the more critical problem with keyboard and touchpad on the current stable kernel versions. Bypassing the PDC is enough for now, because we have not yet enabled the deep idle states where using the PDC becomes necessary.
Cc: stable@vger.kernel.org Fixes: 05e4941d97ef ("pinctrl: qcom: Add X1E80100 pinctrl driver") Signed-off-by: Stephan Gerhold stephan.gerhold@linaro.org
Patch applied for fixes, excellent work as always. Thanks!
Yours, Linus Walleij