linux-kernel - [PATCH v1 3/3] HID: Intel-thc-hid: Intel-quicki2c: Enable Wake-on-Touch feature

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Message-Id: <20250514063735.141950-4-even.xu@intel.com>
Date: Wed, 14 May 2025 14:37:35 +0800
From: Even Xu <even.xu@...el.com>
To: jikos@...nel.org,
	bentiss@...nel.org
Cc: srinivas.pandruvada@...ux.intel.com,
	linux-input@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Even Xu <even.xu@...el.com>,
	Chong Han <chong.han@...el.com>
Subject: [PATCH v1 3/3] HID: Intel-thc-hid: Intel-quicki2c: Enable Wake-on-Touch feature

This patch call THC helper functions to enable Wake-on-Touch (WoT)
during driver initialization and disable it when driver is removed.

Signed-off-by: Even Xu <even.xu@...el.com>
Tested-by: Chong Han <chong.han@...el.com>
---
 .../intel-thc-hid/intel-quicki2c/pci-quicki2c.c    | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/drivers/hid/intel-thc-hid/intel-quicki2c/pci-quicki2c.c b/drivers/hid/intel-thc-hid/intel-quicki2c/pci-quicki2c.c
index 40faba5bd81d..3335775dcf4d 100644
--- a/drivers/hid/intel-thc-hid/intel-quicki2c/pci-quicki2c.c
+++ b/drivers/hid/intel-thc-hid/intel-quicki2c/pci-quicki2c.c
@@ -11,8 +11,11 @@
 #include <linux/sizes.h>
 #include <linux/pm_runtime.h>
 
+#include <linux/gpio/consumer.h>
+
 #include "intel-thc-dev.h"
 #include "intel-thc-hw.h"
+#include "intel-thc-wot.h"
 
 #include "quicki2c-dev.h"
 #include "quicki2c-hid.h"
@@ -31,6 +34,14 @@ static guid_t i2c_hid_guid =
 static guid_t thc_platform_guid =
 	GUID_INIT(0x84005682, 0x5b71, 0x41a4, 0x8d, 0x66, 0x81, 0x30, 0xf7, 0x87, 0xa1, 0x38);
 
+/* QuickI2C Wake-on-Touch GPIO resource */
+static const struct acpi_gpio_params wake_gpio = { 0, 0, true };
+
+static const struct acpi_gpio_mapping quicki2c_gpios[] = {
+	{ "wake-on-touch", &wake_gpio, 1 },
+	{ }
+};
+
 /**
  * quicki2c_acpi_get_dsm_property - Query device ACPI DSM parameter
  * @adev: Point to ACPI device
@@ -398,6 +409,8 @@ static struct quicki2c_device *quicki2c_dev_init(struct pci_dev *pdev, void __io
 
 	thc_interrupt_enable(qcdev->thc_hw, true);
 
+	thc_wot_config(qcdev->thc_hw, &quicki2c_gpios[0]);
+
 	qcdev->state = QUICKI2C_INITED;
 
 	return qcdev;
@@ -413,6 +426,7 @@ static void quicki2c_dev_deinit(struct quicki2c_device *qcdev)
 {
 	thc_interrupt_enable(qcdev->thc_hw, false);
 	thc_ltr_unconfig(qcdev->thc_hw);
+	thc_wot_unconfig(qcdev->thc_hw);
 
 	qcdev->state = QUICKI2C_DISABLED;
 }
-- 
2.40.1