kernel.git/drivers/hid/i2c-hid, branch linux-5.14.y

HID: i2c-hid: Fix Elan touchpad regression

2021-09-18T11:43:31Z

[ Upstream commit 786537063bbfb3a7ebc6fc21b2baf37fb91df401 ] A quirk was recently added for Elan devices that has same device match as an entry earlier in the list. The i2c_hid_lookup_quirk function will always return the last match in the list, so the new entry shadows the old entry. The quirk in the previous entry, I2C_HID_QUIRK_BOGUS_IRQ, silenced a flood of messages which have reappeared in the 5.13 kernel. This change moves the two quirk flags into the same entry. Fixes: ca66a6770bd9 (HID: i2c-hid: Skip ELAN power-on command after reset) Signed-off-by: Jim Broadus Signed-off-by: Jiri Kosina Signed-off-by: Sasha Levin

HID: i2c-hid: fix format string mismatch

2021-05-27T13:40:34Z

clang doesn't like printing a 32-bit integer using %hX format string: drivers/hid/i2c-hid/i2c-hid-core.c:994:18: error: format specifies type 'unsigned short' but the argument has type '__u32' (aka 'unsigned int') [-Werror,-Wformat] client->name, hid->vendor, hid->product); ^~~~~~~~~~~ drivers/hid/i2c-hid/i2c-hid-core.c:994:31: error: format specifies type 'unsigned short' but the argument has type '__u32' (aka 'unsigned int') [-Werror,-Wformat] client->name, hid->vendor, hid->product); ^~~~~~~~~~~~ Use an explicit cast to truncate it to the low 16 bits instead. Fixes: 9ee3e06610fd ("HID: i2c-hid: override HID descriptors for certain devices") Signed-off-by: Arnd Bergmann Reviewed-by: Nathan Chancellor Signed-off-by: Jiri Kosina

HID: i2c-hid: Skip ELAN power-on command after reset

2021-05-07T12:32:28Z

For ELAN touchscreen, we found our boot code of IC was not flexible enough to receive and handle this command. Once the FW main code of our controller is crashed for some reason, the controller could not be enumerated successfully to be recognized by the system host. therefore, it lost touch functionality. Add quirk for skip send power-on command after reset. It will impact to ELAN touchscreen and touchpad on HID over I2C projects. Fixes: 43b7029f475e ("HID: i2c-hid: Send power-on command after reset"). Cc: stable@vger.kernel.org Signed-off-by: Johnny Chuang Reviewed-by: Harry Cutts Reviewed-by: Douglas Anderson Tested-by: Douglas Anderson Signed-off-by: Benjamin Tissoires

HID: i2c-hid: acpi: Drop redundant ACPI_PTR()

2021-03-08T09:43:34Z

The driver depends on ACPI, ACPI_PTR() resolution is always the same. Otherwise a compiler may produce a warning. That said, the rule of thumb either ugly ifdeffery with ACPI_PTR or none should be used in a driver. Signed-off-by: Andy Shevchenko Acked-by: Benjamin Tissoires Signed-off-by: Jiri Kosina

HID: i2c-hid: acpi: Move GUID out of function and described it

2021-03-08T09:43:34Z

Move static GUID variable out of the function and add a comment how it looks like in the human readable representation. While at it, include uuid.h since the guid_t type is defined in it. Signed-off-by: Andy Shevchenko Acked-by: Benjamin Tissoires Signed-off-by: Jiri Kosina

HID: i2c-hid: acpi: Switch to new style i2c-driver probe function

2021-03-08T09:43:34Z

Switch to the new style i2c-driver probe_new probe function. Signed-off-by: Andy Shevchenko Acked-by: Benjamin Tissoires Signed-off-by: Jiri Kosina

HID: i2c-hid: acpi: Get ACPI companion only once and reuse it

2021-03-08T09:43:34Z

Currently the ACPI companion and handle are retrieved and checked a few times in different functions. Instead get ACPI companion only once and reuse it everywhere. Signed-off-by: Andy Shevchenko Acked-by: Benjamin Tissoires Signed-off-by: Jiri Kosina

Merge branch 'for-5.12/i2c-hid' into for-linus

2021-02-23T10:33:54Z

- ACPI and OF support made more generic / decoupled. From Douglas Anderson - support for Goodix devices from Douglas Anderson

HID: i2c-hid: Add I2C_HID_QUIRK_NO_IRQ_AFTER_RESET for ITE8568 EC on Voyo Winpad A15

2021-02-05T09:19:34Z

The ITE8568 EC on the Voyo Winpad A15 presents itself as an I2C-HID attached keyboard and mouse (which seems to never send any events). This needs the I2C_HID_QUIRK_NO_IRQ_AFTER_RESET quirk, otherwise we get the following errors: [ 3688.770850] i2c_hid i2c-ITE8568:00: failed to reset device. [ 3694.915865] i2c_hid i2c-ITE8568:00: failed to reset device. [ 3701.059717] i2c_hid i2c-ITE8568:00: failed to reset device. [ 3707.205944] i2c_hid i2c-ITE8568:00: failed to reset device. [ 3708.227940] i2c_hid i2c-ITE8568:00: can't add hid device: -61 [ 3708.236518] i2c_hid: probe of i2c-ITE8568:00 failed with error -61 Which leads to a significant boot delay. Signed-off-by: Hans de Goede Signed-off-by: Jiri Kosina

HID: i2c-hid: Introduce goodix-i2c-hid using i2c-hid core

2021-01-18T15:56:22Z

Goodix i2c-hid touchscreens are mostly i2c-hid compliant but have some special power sequencing requirements, including the need to drive a reset line during the sequencing. Let's use the new rejiggering of i2c-hid to support this with a thin wrapper driver to support the first Goodix i2c-hid touchscreen: GT7375P Signed-off-by: Douglas Anderson Signed-off-by: Benjamin Tissoires