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linux/drivers/hid/intel-thc-hid
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Even Xu d53338c10f HID: intel-thc-hid: Intel-quickspi: switch first interrupt from level to edge detection 
[ Upstream commit 8fe2cd8ec8 ]

The original implementation used level detection for the first interrupt
after device reset to avoid potential interrupt line noise and missed
interrupts during the initialization phase. However, this approach
introduced unintended side effects when tested with certain touch panels,
including:
 - Delayed hardware interrupt response
 - Multiple spurious interrupt triggers

Switching back to edge detection for the first interrupt resolves these
issues while maintaining reliable interrupt handling.

Extensive testing across multiple platforms with touch panels from
various vendors confirms this change introduces no regressions.

[jkosina@suse.com: properly capitalize shortlog]
Fixes: 9d8d51735a ("HID: intel-thc-hid: intel-quickspi: Add HIDSPI protocol implementation")
Tested-by: Rui Zhang <rui1.zhang@intel.com>
Signed-off-by: Even Xu <even.xu@intel.com>
Signed-off-by: Jiri Kosina <jkosina@suse.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2025-10-23 16:24:35 +02:00
..
intel-quicki2c HID: intel-thc-hid: intel-quicki2c: Add WCL Device IDs 2025-09-12 16:12:38 +02:00
intel-quickspi HID: intel-thc-hid: Intel-quickspi: switch first interrupt from level to edge detection 2025-10-23 16:24:35 +02:00
intel-thc HID: intel-thc-hid: intel-thc: Fix incorrect pointer arithmetic in I2C regs save 2025-08-11 13:38:16 +02:00
Kconfig HID: intel-thc: fix CONFIG_HID dependency 2025-02-03 10:56:43 +01:00
Makefile HID: Intel-thc-hid: Intel-thc: Add Wake-on-Touch support 2025-06-10 21:19:50 +02:00