Merge branch 'for-4.20/i2c-hid' into for-linus

- general cleanups of hid-i2c driver
- SPIODEV device descriptor fixes

13 files changed, 627 insertions, 117 deletions

diff --git a/drivers/hid/i2c-hid/Makefile b/drivers/hid/i2c-hid/Makefile
index 832d8f9aaba2..099e1ce2f234 100644
--- a/drivers/hid/i2c-hid/Makefile
+++ b/drivers/hid/i2c-hid/Makefile
@@ -3,3 +3,6 @@
 #
 
 obj-$(CONFIG_I2C_HID)				+= i2c-hid.o
+
+i2c-hid-objs					=  i2c-hid-core.o
+i2c-hid-$(CONFIG_DMI)				+= i2c-hid-dmi-quirks.o
diff --git a/drivers/hid/i2c-hid/i2c-hid.c b/drivers/hid/i2c-hid/i2c-hid-core.c
index 4e3592e7a3f7..4aab96cf0818 100644
--- a/drivers/hid/i2c-hid/i2c-hid.c
+++ b/drivers/hid/i2c-hid/i2c-hid-core.c
@@ -43,6 +43,7 @@
 #include <linux/platform_data/i2c-hid.h>
 
 #include "../hid-ids.h"
+#include "i2c-hid.h"
 
 /* quirks to control the device */
 #define I2C_HID_QUIRK_SET_PWR_WAKEUP_DEV	BIT(0)
@@ -668,6 +669,7 @@ static int i2c_hid_parse(struct hid_device *hid)
 	char *rdesc;
 	int ret;
 	int tries = 3;
+	char *use_override;
 
 	i2c_hid_dbg(ihid, "entering %s\n", __func__);
 
@@ -686,26 +688,37 @@ static int i2c_hid_parse(struct hid_device *hid)
 	if (ret)
 		return ret;
 
-	rdesc = kzalloc(rsize, GFP_KERNEL);
+	use_override = i2c_hid_get_dmi_hid_report_desc_override(client->name,
+								&rsize);
 
-	if (!rdesc) {
-		dbg_hid("couldn't allocate rdesc memory\n");
-		return -ENOMEM;
-	}
-
-	i2c_hid_dbg(ihid, "asking HID report descriptor\n");
-
-	ret = i2c_hid_command(client, &hid_report_descr_cmd, rdesc, rsize);
-	if (ret) {
-		hid_err(hid, "reading report descriptor failed\n");
-		kfree(rdesc);
-		return -EIO;
+	if (use_override) {
+		rdesc = use_override;
+		i2c_hid_dbg(ihid, "Using a HID report descriptor override\n");
+	} else {
+		rdesc = kzalloc(rsize, GFP_KERNEL);
+
+		if (!rdesc) {
+			dbg_hid("couldn't allocate rdesc memory\n");
+			return -ENOMEM;
+		}
+
+		i2c_hid_dbg(ihid, "asking HID report descriptor\n");
+
+		ret = i2c_hid_command(client, &hid_report_descr_cmd,
+				      rdesc, rsize);
+		if (ret) {
+			hid_err(hid, "reading report descriptor failed\n");
+			kfree(rdesc);
+			return -EIO;
+		}
 	}
 
 	i2c_hid_dbg(ihid, "Report Descriptor: %*ph\n", rsize, rdesc);
 
 	ret = hid_parse_report(hid, rdesc, rsize);
-	kfree(rdesc);
+	if (!use_override)
+		kfree(rdesc);
+
 	if (ret) {
 		dbg_hid("parsing report descriptor failed\n");
 		return ret;
@@ -832,12 +845,19 @@ static int i2c_hid_fetch_hid_descriptor(struct i2c_hid *ihid)
 	int ret;
 
 	/* i2c hid fetch using a fixed descriptor size (30 bytes) */
-	i2c_hid_dbg(ihid, "Fetching the HID descriptor\n");
-	ret = i2c_hid_command(client, &hid_descr_cmd, ihid->hdesc_buffer,
-				sizeof(struct i2c_hid_desc));
-	if (ret) {
-		dev_err(&client->dev, "hid_descr_cmd failed\n");
-		return -ENODEV;
+	if (i2c_hid_get_dmi_i2c_hid_desc_override(client->name)) {
+		i2c_hid_dbg(ihid, "Using a HID descriptor override\n");
+		ihid->hdesc =
+			*i2c_hid_get_dmi_i2c_hid_desc_override(client->name);
+	} else {
+		i2c_hid_dbg(ihid, "Fetching the HID descriptor\n");
+		ret = i2c_hid_command(client, &hid_descr_cmd,
+				      ihid->hdesc_buffer,
+				      sizeof(struct i2c_hid_desc));
+		if (ret) {
+			dev_err(&client->dev, "hid_descr_cmd failed\n");
+			return -ENODEV;
+		}
 	}
 
 	/* Validate the length of HID descriptor, the 4 first bytes:
diff --git a/drivers/hid/i2c-hid/i2c-hid-dmi-quirks.c b/drivers/hid/i2c-hid/i2c-hid-dmi-quirks.c
new file mode 100644
index 000000000000..1d645c9ab417
--- /dev/null
+++ b/drivers/hid/i2c-hid/i2c-hid-dmi-quirks.c
@@ -0,0 +1,376 @@
+// SPDX-License-Identifier: GPL-2.0+
+
+/*
+ * Quirks for I2C-HID devices that do not supply proper descriptors
+ *
+ * Copyright (c) 2018 Julian Sax <jsbc@gmx.de>
+ *
+ */
+
+#include <linux/types.h>
+#include <linux/dmi.h>
+#include <linux/mod_devicetable.h>
+
+#include "i2c-hid.h"
+
+
+struct i2c_hid_desc_override {
+	union {
+		struct i2c_hid_desc *i2c_hid_desc;
+		uint8_t             *i2c_hid_desc_buffer;
+	};
+	uint8_t              *hid_report_desc;
+	unsigned int          hid_report_desc_size;
+	uint8_t              *i2c_name;
+};
+
+
+/*
+ * descriptors for the SIPODEV SP1064 touchpad
+ *
+ * This device does not supply any descriptors and on windows a filter
+ * driver operates between the i2c-hid layer and the device and injects
+ * these descriptors when the device is prompted. The descriptors were
+ * extracted by listening to the i2c-hid traffic that occurs between the
+ * windows filter driver and the windows i2c-hid driver.
+ */
+
+static const struct i2c_hid_desc_override sipodev_desc = {
+	.i2c_hid_desc_buffer = (uint8_t [])
+	{0x1e, 0x00,                  /* Length of descriptor                 */
+	 0x00, 0x01,                  /* Version of descriptor                */
+	 0xdb, 0x01,                  /* Length of report descriptor          */
+	 0x21, 0x00,                  /* Location of report descriptor        */
+	 0x24, 0x00,                  /* Location of input report             */
+	 0x1b, 0x00,                  /* Max input report length              */
+	 0x25, 0x00,                  /* Location of output report            */
+	 0x11, 0x00,                  /* Max output report length             */
+	 0x22, 0x00,                  /* Location of command register         */
+	 0x23, 0x00,                  /* Location of data register            */
+	 0x11, 0x09,                  /* Vendor ID                            */
+	 0x88, 0x52,                  /* Product ID                           */
+	 0x06, 0x00,                  /* Version ID                           */
+	 0x00, 0x00, 0x00, 0x00       /* Reserved                             */
+	},
+
+	.hid_report_desc = (uint8_t [])
+	{0x05, 0x01,                  /* Usage Page (Desktop),                */
+	 0x09, 0x02,                  /* Usage (Mouse),                       */
+	 0xA1, 0x01,                  /* Collection (Application),            */
+	 0x85, 0x01,                  /*     Report ID (1),                   */
+	 0x09, 0x01,                  /*     Usage (Pointer),                 */
+	 0xA1, 0x00,                  /*     Collection (Physical),           */
+	 0x05, 0x09,                  /*         Usage Page (Button),         */
+	 0x19, 0x01,                  /*         Usage Minimum (01h),         */
+	 0x29, 0x02,                  /*         Usage Maximum (02h),         */
+	 0x25, 0x01,                  /*         Logical Maximum (1),         */
+	 0x75, 0x01,                  /*         Report Size (1),             */
+	 0x95, 0x02,                  /*         Report Count (2),            */
+	 0x81, 0x02,                  /*         Input (Variable),            */
+	 0x95, 0x06,                  /*         Report Count (6),            */
+	 0x81, 0x01,                  /*         Input (Constant),            */
+	 0x05, 0x01,                  /*         Usage Page (Desktop),        */
+	 0x09, 0x30,                  /*         Usage (X),                   */
+	 0x09, 0x31,                  /*         Usage (Y),                   */
+	 0x15, 0x81,                  /*         Logical Minimum (-127),      */
+	 0x25, 0x7F,                  /*         Logical Maximum (127),       */
+	 0x75, 0x08,                  /*         Report Size (8),             */
+	 0x95, 0x02,                  /*         Report Count (2),            */
+	 0x81, 0x06,                  /*         Input (Variable, Relative),  */
+	 0xC0,                        /*     End Collection,                  */
+	 0xC0,                        /* End Collection,                      */
+	 0x05, 0x0D,                  /* Usage Page (Digitizer),              */
+	 0x09, 0x05,                  /* Usage (Touchpad),                    */
+	 0xA1, 0x01,                  /* Collection (Application),            */
+	 0x85, 0x04,                  /*     Report ID (4),                   */
+	 0x05, 0x0D,                  /*     Usage Page (Digitizer),          */
+	 0x09, 0x22,                  /*     Usage (Finger),                  */
+	 0xA1, 0x02,                  /*     Collection (Logical),            */
+	 0x15, 0x00,                  /*         Logical Minimum (0),         */
+	 0x25, 0x01,                  /*         Logical Maximum (1),         */
+	 0x09, 0x47,                  /*         Usage (Touch Valid),         */
+	 0x09, 0x42,                  /*         Usage (Tip Switch),          */
+	 0x95, 0x02,                  /*         Report Count (2),            */
+	 0x75, 0x01,                  /*         Report Size (1),             */
+	 0x81, 0x02,                  /*         Input (Variable),            */
+	 0x95, 0x01,                  /*         Report Count (1),            */
+	 0x75, 0x03,                  /*         Report Size (3),             */
+	 0x25, 0x05,                  /*         Logical Maximum (5),         */
+	 0x09, 0x51,                  /*         Usage (Contact Identifier),  */
+	 0x81, 0x02,                  /*         Input (Variable),            */
+	 0x75, 0x01,                  /*         Report Size (1),             */
+	 0x95, 0x03,                  /*         Report Count (3),            */
+	 0x81, 0x03,                  /*         Input (Constant, Variable),  */
+	 0x05, 0x01,                  /*         Usage Page (Desktop),        */
+	 0x26, 0x44, 0x0A,            /*         Logical Maximum (2628),      */
+	 0x75, 0x10,                  /*         Report Size (16),            */
+	 0x55, 0x0E,                  /*         Unit Exponent (14),          */
+	 0x65, 0x11,                  /*         Unit (Centimeter),           */
+	 0x09, 0x30,                  /*         Usage (X),                   */
+	 0x46, 0x1A, 0x04,            /*         Physical Maximum (1050),     */
+	 0x95, 0x01,                  /*         Report Count (1),            */
+	 0x81, 0x02,                  /*         Input (Variable),            */
+	 0x46, 0xBC, 0x02,            /*         Physical Maximum (700),      */
+	 0x26, 0x34, 0x05,            /*         Logical Maximum (1332),      */
+	 0x09, 0x31,                  /*         Usage (Y),                   */
+	 0x81, 0x02,                  /*         Input (Variable),            */
+	 0xC0,                        /*     End Collection,                  */
+	 0x05, 0x0D,                  /*     Usage Page (Digitizer),          */
+	 0x09, 0x22,                  /*     Usage (Finger),                  */
+	 0xA1, 0x02,                  /*     Collection (Logical),            */
+	 0x25, 0x01,                  /*         Logical Maximum (1),         */
+	 0x09, 0x47,                  /*         Usage (Touch Valid),         */
+	 0x09, 0x42,                  /*         Usage (Tip Switch),          */
+	 0x95, 0x02,                  /*         Report Count (2),            */
+	 0x75, 0x01,                  /*         Report Size (1),             */
+	 0x81, 0x02,                  /*         Input (Variable),            */
+	 0x95, 0x01,                  /*         Report Count (1),            */
+	 0x75, 0x03,                  /*         Report Size (3),             */
+	 0x25, 0x05,                  /*         Logical Maximum (5),         */
+	 0x09, 0x51,                  /*         Usage (Contact Identifier),  */
+	 0x81, 0x02,                  /*         Input (Variable),            */
+	 0x75, 0x01,                  /*         Report Size (1),             */
+	 0x95, 0x03,                  /*         Report Count (3),            */
+	 0x81, 0x03,                  /*         Input (Constant, Variable),  */
+	 0x05, 0x01,                  /*         Usage Page (Desktop),        */
+	 0x26, 0x44, 0x0A,            /*         Logical Maximum (2628),      */
+	 0x75, 0x10,                  /*         Report Size (16),            */
+	 0x09, 0x30,                  /*         Usage (X),                   */
+	 0x46, 0x1A, 0x04,            /*         Physical Maximum (1050),     */
+	 0x95, 0x01,                  /*         Report Count (1),            */
+	 0x81, 0x02,                  /*         Input (Variable),            */
+	 0x46, 0xBC, 0x02,            /*         Physical Maximum (700),      */
+	 0x26, 0x34, 0x05,            /*         Logical Maximum (1332),      */
+	 0x09, 0x31,                  /*         Usage (Y),                   */
+	 0x81, 0x02,                  /*         Input (Variable),            */
+	 0xC0,                        /*     End Collection,                  */
+	 0x05, 0x0D,                  /*     Usage Page (Digitizer),          */
+	 0x09, 0x22,                  /*     Usage (Finger),                  */
+	 0xA1, 0x02,                  /*     Collection (Logical),            */
+	 0x25, 0x01,                  /*         Logical Maximum (1),         */
+	 0x09, 0x47,                  /*         Usage (Touch Valid),         */
+	 0x09, 0x42,                  /*         Usage (Tip Switch),          */
+	 0x95, 0x02,                  /*         Report Count (2),            */
+	 0x75, 0x01,                  /*         Report Size (1),             */
+	 0x81, 0x02,                  /*         Input (Variable),            */
+	 0x95, 0x01,                  /*         Report Count (1),            */
+	 0x75, 0x03,                  /*         Report Size (3),             */
+	 0x25, 0x05,                  /*         Logical Maximum (5),         */
+	 0x09, 0x51,                  /*         Usage (Contact Identifier),  */
+	 0x81, 0x02,                  /*         Input (Variable),            */
+	 0x75, 0x01,                  /*         Report Size (1),             */
+	 0x95, 0x03,                  /*         Report Count (3),            */
+	 0x81, 0x03,                  /*         Input (Constant, Variable),  */
+	 0x05, 0x01,                  /*         Usage Page (Desktop),        */
+	 0x26, 0x44, 0x0A,            /*         Logical Maximum (2628),      */
+	 0x75, 0x10,                  /*         Report Size (16),            */
+	 0x09, 0x30,                  /*         Usage (X),                   */
+	 0x46, 0x1A, 0x04,            /*         Physical Maximum (1050),     */
+	 0x95, 0x01,                  /*         Report Count (1),            */
+	 0x81, 0x02,                  /*         Input (Variable),            */
+	 0x46, 0xBC, 0x02,            /*         Physical Maximum (700),      */
+	 0x26, 0x34, 0x05,            /*         Logical Maximum (1332),      */
+	 0x09, 0x31,                  /*         Usage (Y),                   */
+	 0x81, 0x02,                  /*         Input (Variable),            */
+	 0xC0,                        /*     End Collection,                  */
+	 0x05, 0x0D,                  /*     Usage Page (Digitizer),          */
+	 0x09, 0x22,                  /*     Usage (Finger),                  */
+	 0xA1, 0x02,                  /*     Collection (Logical),            */
+	 0x25, 0x01,                  /*         Logical Maximum (1),         */
+	 0x09, 0x47,                  /*         Usage (Touch Valid),         */
+	 0x09, 0x42,                  /*         Usage (Tip Switch),          */
+	 0x95, 0x02,                  /*         Report Count (2),            */
+	 0x75, 0x01,                  /*         Report Size (1),             */
+	 0x81, 0x02,                  /*         Input (Variable),            */
+	 0x95, 0x01,                  /*         Report Count (1),            */
+	 0x75, 0x03,                  /*         Report Size (3),             */
+	 0x25, 0x05,                  /*         Logical Maximum (5),         */
+	 0x09, 0x51,                  /*         Usage (Contact Identifier),  */
+	 0x81, 0x02,                  /*         Input (Variable),            */
+	 0x75, 0x01,                  /*         Report Size (1),             */
+	 0x95, 0x03,                  /*         Report Count (3),            */
+	 0x81, 0x03,                  /*         Input (Constant, Variable),  */
+	 0x05, 0x01,                  /*         Usage Page (Desktop),        */
+	 0x26, 0x44, 0x0A,            /*         Logical Maximum (2628),      */
+	 0x75, 0x10,                  /*         Report Size (16),            */
+	 0x09, 0x30,                  /*         Usage (X),                   */
+	 0x46, 0x1A, 0x04,            /*         Physical Maximum (1050),     */
+	 0x95, 0x01,                  /*         Report Count (1),            */
+	 0x81, 0x02,                  /*         Input (Variable),            */
+	 0x46, 0xBC, 0x02,            /*         Physical Maximum (700),      */
+	 0x26, 0x34, 0x05,            /*         Logical Maximum (1332),      */
+	 0x09, 0x31,                  /*         Usage (Y),                   */
+	 0x81, 0x02,                  /*         Input (Variable),            */
+	 0xC0,                        /*     End Collection,                  */
+	 0x05, 0x0D,                  /*     Usage Page (Digitizer),          */
+	 0x55, 0x0C,                  /*     Unit Exponent (12),              */
+	 0x66, 0x01, 0x10,            /*     Unit (Seconds),                  */
+	 0x47, 0xFF, 0xFF, 0x00, 0x00,/*     Physical Maximum (65535),        */
+	 0x27, 0xFF, 0xFF, 0x00, 0x00,/*     Logical Maximum (65535),         */
+	 0x75, 0x10,                  /*     Report Size (16),                */
+	 0x95, 0x01,                  /*     Report Count (1),                */
+	 0x09, 0x56,                  /*     Usage (Scan Time),               */
+	 0x81, 0x02,                  /*     Input (Variable),                */
+	 0x09, 0x54,                  /*     Usage (Contact Count),           */
+	 0x25, 0x7F,                  /*     Logical Maximum (127),           */
+	 0x75, 0x08,                  /*     Report Size (8),                 */
+	 0x81, 0x02,                  /*     Input (Variable),                */
+	 0x05, 0x09,                  /*     Usage Page (Button),             */
+	 0x09, 0x01,                  /*     Usage (01h),                     */
+	 0x25, 0x01,                  /*     Logical Maximum (1),             */
+	 0x75, 0x01,                  /*     Report Size (1),                 */
+	 0x95, 0x01,                  /*     Report Count (1),                */
+	 0x81, 0x02,                  /*     Input (Variable),                */
+	 0x95, 0x07,                  /*     Report Count (7),                */
+	 0x81, 0x03,                  /*     Input (Constant, Variable),      */
+	 0x05, 0x0D,                  /*     Usage Page (Digitizer),          */
+	 0x85, 0x02,                  /*     Report ID (2),                   */
+	 0x09, 0x55,                  /*     Usage (Contact Count Maximum),   */
+	 0x09, 0x59,                  /*     Usage (59h),                     */
+	 0x75, 0x04,                  /*     Report Size (4),                 */
+	 0x95, 0x02,                  /*     Report Count (2),                */
+	 0x25, 0x0F,                  /*     Logical Maximum (15),            */
+	 0xB1, 0x02,                  /*     Feature (Variable),              */
+	 0x05, 0x0D,                  /*     Usage Page (Digitizer),          */
+	 0x85, 0x07,                  /*     Report ID (7),                   */
+	 0x09, 0x60,                  /*     Usage (60h),                     */
+	 0x75, 0x01,                  /*     Report Size (1),                 */
+	 0x95, 0x01,                  /*     Report Count (1),                */
+	 0x25, 0x01,                  /*     Logical Maximum (1),             */
+	 0xB1, 0x02,                  /*     Feature (Variable),              */
+	 0x95, 0x07,                  /*     Report Count (7),                */
+	 0xB1, 0x03,                  /*     Feature (Constant, Variable),    */
+	 0x85, 0x06,                  /*     Report ID (6),                   */
+	 0x06, 0x00, 0xFF,            /*     Usage Page (FF00h),              */
+	 0x09, 0xC5,                  /*     Usage (C5h),                     */
+	 0x26, 0xFF, 0x00,            /*     Logical Maximum (255),           */
+	 0x75, 0x08,                  /*     Report Size (8),                 */
+	 0x96, 0x00, 0x01,            /*     Report Count (256),              */
+	 0xB1, 0x02,                  /*     Feature (Variable),              */
+	 0xC0,                        /* End Collection,                      */
+	 0x06, 0x00, 0xFF,            /* Usage Page (FF00h),                  */
+	 0x09, 0x01,                  /* Usage (01h),                         */
+	 0xA1, 0x01,                  /* Collection (Application),            */
+	 0x85, 0x0D,                  /*     Report ID (13),                  */
+	 0x26, 0xFF, 0x00,            /*     Logical Maximum (255),           */
+	 0x19, 0x01,                  /*     Usage Minimum (01h),             */
+	 0x29, 0x02,                  /*     Usage Maximum (02h),             */
+	 0x75, 0x08,                  /*     Report Size (8),                 */
+	 0x95, 0x02,                  /*     Report Count (2),                */
+	 0xB1, 0x02,                  /*     Feature (Variable),              */
+	 0xC0,                        /* End Collection,                      */
+	 0x05, 0x0D,                  /* Usage Page (Digitizer),              */
+	 0x09, 0x0E,                  /* Usage (Configuration),               */
+	 0xA1, 0x01,                  /* Collection (Application),            */
+	 0x85, 0x03,                  /*     Report ID (3),                   */
+	 0x09, 0x22,                  /*     Usage (Finger),                  */
+	 0xA1, 0x02,                  /*     Collection (Logical),            */
+	 0x09, 0x52,                  /*         Usage (Device Mode),         */
+	 0x25, 0x0A,                  /*         Logical Maximum (10),        */
+	 0x95, 0x01,                  /*         Report Count (1),            */
+	 0xB1, 0x02,                  /*         Feature (Variable),          */
+	 0xC0,                        /*     End Collection,                  */
+	 0x09, 0x22,                  /*     Usage (Finger),                  */
+	 0xA1, 0x00,                  /*     Collection (Physical),           */
+	 0x85, 0x05,                  /*         Report ID (5),               */
+	 0x09, 0x57,                  /*         Usage (57h),                 */
+	 0x09, 0x58,                  /*         Usage (58h),                 */
+	 0x75, 0x01,                  /*         Report Size (1),             */
+	 0x95, 0x02,                  /*         Report Count (2),            */
+	 0x25, 0x01,                  /*         Logical Maximum (1),         */
+	 0xB1, 0x02,                  /*         Feature (Variable),          */
+	 0x95, 0x06,                  /*         Report Count (6),            */
+	 0xB1, 0x03,                  /*         Feature (Constant, Variable),*/
+	 0xC0,                        /*     End Collection,                  */
+	 0xC0                         /* End Collection                       */
+	},
+	.hid_report_desc_size = 475,
+	.i2c_name = "SYNA3602:00"
+};
+
+
+static const struct dmi_system_id i2c_hid_dmi_desc_override_table[] = {
+	{
+		.ident = "Teclast F6 Pro",
+		.matches = {
+			DMI_EXACT_MATCH(DMI_SYS_VENDOR, "TECLAST"),
+			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "F6 Pro"),
+		},
+		.driver_data = (void *)&sipodev_desc
+	},
+	{
+		.ident = "Teclast F7",
+		.matches = {
+			DMI_EXACT_MATCH(DMI_SYS_VENDOR, "TECLAST"),
+			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "F7"),
+		},
+		.driver_data = (void *)&sipodev_desc
+	},
+	{
+		.ident = "Trekstor Primebook C13",
+		.matches = {
+			DMI_EXACT_MATCH(DMI_SYS_VENDOR, "TREKSTOR"),
+			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Primebook C13"),
+		},
+		.driver_data = (void *)&sipodev_desc
+	},
+	{
+		.ident = "Trekstor Primebook C11",
+		.matches = {
+			DMI_EXACT_MATCH(DMI_SYS_VENDOR, "TREKSTOR"),
+			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Primebook C11"),
+		},
+		.driver_data = (void *)&sipodev_desc
+	},
+	{
+		.ident = "Direkt-Tek DTLAPY116-2",
+		.matches = {
+			DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Direkt-Tek"),
+			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "DTLAPY116-2"),
+		},
+		.driver_data = (void *)&sipodev_desc
+	},
+	{
+		.ident = "Mediacom Flexbook Edge 11",
+		.matches = {
+			DMI_EXACT_MATCH(DMI_SYS_VENDOR, "MEDIACOM"),
+			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "FlexBook edge11 - M-FBE11"),
+		},
+		.driver_data = (void *)&sipodev_desc
+	}
+};
+
+
+struct i2c_hid_desc *i2c_hid_get_dmi_i2c_hid_desc_override(uint8_t *i2c_name)
+{
+	struct i2c_hid_desc_override *override;
+	const struct dmi_system_id *system_id;
+
+	system_id = dmi_first_match(i2c_hid_dmi_desc_override_table);
+	if (!system_id)
+		return NULL;
+
+	override = system_id->driver_data;
+	if (strcmp(override->i2c_name, i2c_name))
+		return NULL;
+
+	return override->i2c_hid_desc;
+}
+
+char *i2c_hid_get_dmi_hid_report_desc_override(uint8_t *i2c_name,
+					       unsigned int *size)
+{
+	struct i2c_hid_desc_override *override;
+	const struct dmi_system_id *system_id;
+
+	system_id = dmi_first_match(i2c_hid_dmi_desc_override_table);
+	if (!system_id)
+		return NULL;
+
+	override = system_id->driver_data;
+	if (strcmp(override->i2c_name, i2c_name))
+		return NULL;
+
+	*size = override->hid_report_desc_size;
+	return override->hid_report_desc;
+}
diff --git a/drivers/hid/i2c-hid/i2c-hid.h b/drivers/hid/i2c-hid/i2c-hid.h
new file mode 100644
index 000000000000..a8c19aef5824
--- /dev/null
+++ b/drivers/hid/i2c-hid/i2c-hid.h
@@ -0,0 +1,20 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+
+#ifndef I2C_HID_H
+#define I2C_HID_H
+
+
+#ifdef CONFIG_DMI
+struct i2c_hid_desc *i2c_hid_get_dmi_i2c_hid_desc_override(uint8_t *i2c_name);
+char *i2c_hid_get_dmi_hid_report_desc_override(uint8_t *i2c_name,
+					       unsigned int *size);
+#else
+static inline struct i2c_hid_desc
+		   *i2c_hid_get_dmi_i2c_hid_desc_override(uint8_t *i2c_name)
+{ return NULL; }
+static inline char *i2c_hid_get_dmi_hid_report_desc_override(uint8_t *i2c_name,
+							     unsigned int *size)
+{ return NULL; }
+#endif
+
+#endif
diff --git a/drivers/hid/intel-ish-hid/ipc/ipc.c b/drivers/hid/intel-ish-hid/ipc/ipc.c
index bfbca7ec54ce..742191bb24c6 100644
--- a/drivers/hid/intel-ish-hid/ipc/ipc.c
+++ b/drivers/hid/intel-ish-hid/ipc/ipc.c
@@ -280,14 +280,14 @@ static int write_ipc_from_queue(struct ishtp_device *dev)
 	 * if tx send list is empty - return 0;
 	 * may happen, as RX_COMPLETE handler doesn't check list emptiness.
 	 */
-	if (list_empty(&dev->wr_processing_list_head.link)) {
+	if (list_empty(&dev->wr_processing_list)) {
 		spin_unlock_irqrestore(&dev->wr_processing_spinlock, flags);
 		out_ipc_locked = 0;
 		return	0;
 	}
 
-	ipc_link = list_entry(dev->wr_processing_list_head.link.next,
-			      struct wr_msg_ctl_info, link);
+	ipc_link = list_first_entry(&dev->wr_processing_list,
+				    struct wr_msg_ctl_info, link);
 	/* first 4 bytes of the data is the doorbell value (IPC header) */
 	length = ipc_link->length - sizeof(uint32_t);
 	doorbell_val = *(uint32_t *)ipc_link->inline_data;
@@ -338,7 +338,7 @@ static int write_ipc_from_queue(struct ishtp_device *dev)
 	ipc_send_compl = ipc_link->ipc_send_compl;
 	ipc_send_compl_prm = ipc_link->ipc_send_compl_prm;
 	list_del_init(&ipc_link->link);
-	list_add_tail(&ipc_link->link, &dev->wr_free_list_head.link);
+	list_add(&ipc_link->link, &dev->wr_free_list);
 	spin_unlock_irqrestore(&dev->wr_processing_spinlock, flags);
 
 	/*
@@ -372,18 +372,18 @@ static int write_ipc_to_queue(struct ishtp_device *dev,
 	unsigned char *msg, int length)
 {
 	struct wr_msg_ctl_info *ipc_link;
-	unsigned long	flags;
+	unsigned long flags;
 
 	if (length > IPC_FULL_MSG_SIZE)
 		return -EMSGSIZE;
 
 	spin_lock_irqsave(&dev->wr_processing_spinlock, flags);
-	if (list_empty(&dev->wr_free_list_head.link)) {
+	if (list_empty(&dev->wr_free_list)) {
 		spin_unlock_irqrestore(&dev->wr_processing_spinlock, flags);
 		return -ENOMEM;
 	}
-	ipc_link = list_entry(dev->wr_free_list_head.link.next,
-		struct wr_msg_ctl_info, link);
+	ipc_link = list_first_entry(&dev->wr_free_list,
+				    struct wr_msg_ctl_info, link);
 	list_del_init(&ipc_link->link);
 
 	ipc_link->ipc_send_compl = ipc_send_compl;
@@ -391,7 +391,7 @@ static int write_ipc_to_queue(struct ishtp_device *dev,
 	ipc_link->length = length;
 	memcpy(ipc_link->inline_data, msg, length);
 
-	list_add_tail(&ipc_link->link, &dev->wr_processing_list_head.link);
+	list_add_tail(&ipc_link->link, &dev->wr_processing_list);
 	spin_unlock_irqrestore(&dev->wr_processing_spinlock, flags);
 
 	write_ipc_from_queue(dev);
@@ -487,17 +487,13 @@ static int ish_fw_reset_handler(struct ishtp_device *dev)
 {
 	uint32_t	reset_id;
 	unsigned long	flags;
-	struct wr_msg_ctl_info *processing, *next;
 
 	/* Read reset ID */
 	reset_id = ish_reg_read(dev, IPC_REG_ISH2HOST_MSG) & 0xFFFF;
 
 	/* Clear IPC output queue */
 	spin_lock_irqsave(&dev->wr_processing_spinlock, flags);
-	list_for_each_entry_safe(processing, next,
-			&dev->wr_processing_list_head.link, link) {
-		list_move_tail(&processing->link, &dev->wr_free_list_head.link);
-	}
+	list_splice_init(&dev->wr_processing_list, &dev->wr_free_list);
 	spin_unlock_irqrestore(&dev->wr_processing_spinlock, flags);
 
 	/* ISHTP notification in IPC_RESET */
@@ -921,9 +917,9 @@ struct ishtp_device *ish_dev_init(struct pci_dev *pdev)
 	spin_lock_init(&dev->out_ipc_spinlock);
 
 	/* Init IPC processing and free lists */
-	INIT_LIST_HEAD(&dev->wr_processing_list_head.link);
-	INIT_LIST_HEAD(&dev->wr_free_list_head.link);
-	for (i = 0; i < IPC_TX_FIFO_SIZE; ++i) {
+	INIT_LIST_HEAD(&dev->wr_processing_list);
+	INIT_LIST_HEAD(&dev->wr_free_list);
+	for (i = 0; i < IPC_TX_FIFO_SIZE; i++) {
 		struct wr_msg_ctl_info	*tx_buf;
 
 		tx_buf = devm_kzalloc(&pdev->dev,
@@ -939,7 +935,7 @@ struct ishtp_device *ish_dev_init(struct pci_dev *pdev)
 				i);
 			break;
 		}
-		list_add_tail(&tx_buf->link, &dev->wr_free_list_head.link);
+		list_add_tail(&tx_buf->link, &dev->wr_free_list);
 	}
 
 	dev->ops = &ish_hw_ops;
diff --git a/drivers/hid/intel-ish-hid/ipc/pci-ish.c b/drivers/hid/intel-ish-hid/ipc/pci-ish.c
index 256b3016116c..8793cc49f855 100644
--- a/drivers/hid/intel-ish-hid/ipc/pci-ish.c
+++ b/drivers/hid/intel-ish-hid/ipc/pci-ish.c
@@ -115,18 +115,19 @@ static const struct pci_device_id ish_invalid_pci_ids[] = {
  */
 static int ish_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 {
-	struct ishtp_device *dev;
+	int ret;
 	struct ish_hw *hw;
-	int	ret;
+	struct ishtp_device *ishtp;
+	struct device *dev = &pdev->dev;
 
 	/* Check for invalid platforms for ISH support */
 	if (pci_dev_present(ish_invalid_pci_ids))
 		return -ENODEV;
 
 	/* enable pci dev */
-	ret = pci_enable_device(pdev);
+	ret = pcim_enable_device(pdev);
 	if (ret) {
-		dev_err(&pdev->dev, "ISH: Failed to enable PCI device\n");
+		dev_err(dev, "ISH: Failed to enable PCI device\n");
 		return ret;
 	}
 
@@ -134,65 +135,44 @@ static int ish_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	pci_set_master(pdev);
 
 	/* pci request regions for ISH driver */
-	ret = pci_request_regions(pdev, KBUILD_MODNAME);
+	ret = pcim_iomap_regions(pdev, 1 << 0, KBUILD_MODNAME);
 	if (ret) {
-		dev_err(&pdev->dev, "ISH: Failed to get PCI regions\n");
-		goto disable_device;
+		dev_err(dev, "ISH: Failed to get PCI regions\n");
+		return ret;
 	}
 
 	/* allocates and initializes the ISH dev structure */
-	dev = ish_dev_init(pdev);
-	if (!dev) {
+	ishtp = ish_dev_init(pdev);
+	if (!ishtp) {
 		ret = -ENOMEM;
-		goto release_regions;
+		return ret;
 	}
-	hw = to_ish_hw(dev);
-	dev->print_log = ish_event_tracer;
+	hw = to_ish_hw(ishtp);
+	ishtp->print_log = ish_event_tracer;
 
 	/* mapping IO device memory */
-	hw->mem_addr = pci_iomap(pdev, 0, 0);
-	if (!hw->mem_addr) {
-		dev_err(&pdev->dev, "ISH: mapping I/O range failure\n");
-		ret = -ENOMEM;
-		goto free_device;
-	}
-
-	dev->pdev = pdev;
-
+	hw->mem_addr = pcim_iomap_table(pdev)[0];
+	ishtp->pdev = pdev;
 	pdev->dev_flags |= PCI_DEV_FLAGS_NO_D3;
 
 	/* request and enable interrupt */
-	ret = request_irq(pdev->irq, ish_irq_handler, IRQF_SHARED,
-			  KBUILD_MODNAME, dev);
+	ret = devm_request_irq(dev, pdev->irq, ish_irq_handler,
+			       IRQF_SHARED, KBUILD_MODNAME, ishtp);
 	if (ret) {
-		dev_err(&pdev->dev, "ISH: request IRQ failure (%d)\n",
-			pdev->irq);
-		goto free_device;
+		dev_err(dev, "ISH: request IRQ %d failed\n", pdev->irq);
+		return ret;
 	}
 
-	dev_set_drvdata(dev->devc, dev);
+	dev_set_drvdata(ishtp->devc, ishtp);
 
-	init_waitqueue_head(&dev->suspend_wait);
-	init_waitqueue_head(&dev->resume_wait);
+	init_waitqueue_head(&ishtp->suspend_wait);
+	init_waitqueue_head(&ishtp->resume_wait);
 
-	ret = ish_init(dev);
+	ret = ish_init(ishtp);
 	if (ret)
-		goto free_irq;
+		return ret;
 
 	return 0;
-
-free_irq:
-	free_irq(pdev->irq, dev);
-free_device:
-	pci_iounmap(pdev, hw->mem_addr);
-release_regions:
-	pci_release_regions(pdev);
-disable_device:
-	pci_clear_master(pdev);
-	pci_disable_device(pdev);
-	dev_err(&pdev->dev, "ISH: PCI driver initialization failed.\n");
-
-	return ret;
 }
 
 /**
@@ -204,16 +184,9 @@ disable_device:
 static void ish_remove(struct pci_dev *pdev)
 {
 	struct ishtp_device *ishtp_dev = pci_get_drvdata(pdev);
-	struct ish_hw *hw = to_ish_hw(ishtp_dev);
 
 	ishtp_bus_remove_all_clients(ishtp_dev, false);
 	ish_device_disable(ishtp_dev);
-
-	free_irq(pdev->irq, ishtp_dev);
-	pci_iounmap(pdev, hw->mem_addr);
-	pci_release_regions(pdev);
-	pci_clear_master(pdev);
-	pci_disable_device(pdev);
 }
 
 static struct device __maybe_unused *ish_resume_device;
diff --git a/drivers/hid/intel-ish-hid/ishtp-hid-client.c b/drivers/hid/intel-ish-hid/ishtp-hid-client.c
index 2d28cffc1404..e64243bc9c96 100644
--- a/drivers/hid/intel-ish-hid/ishtp-hid-client.c
+++ b/drivers/hid/intel-ish-hid/ishtp-hid-client.c
@@ -320,23 +320,14 @@ do_get_report:
  */
 static void ish_cl_event_cb(struct ishtp_cl_device *device)
 {
-	struct ishtp_cl	*hid_ishtp_cl = device->driver_data;
+	struct ishtp_cl	*hid_ishtp_cl = ishtp_get_drvdata(device);
 	struct ishtp_cl_rb *rb_in_proc;
 	size_t r_length;
-	unsigned long flags;