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HID: i2c-hid: introduce re-power-on quirk

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It appears some keyboards from vendor 'QTEC' will not work properly until
suspend & resume.

Empirically narrowed down to solution of re-sending power on command
_after_ initialization was completed before the end of initial probing.

Signed-off-by: Aleksandrs Vinarskis <alex.vinarskis@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.com>
This commit is contained in:
Aleksandrs Vinarskis
2024-10-31 08:31:41 +01:00
committed by Jiri Kosina
parent 50a78409a2
commit e61080220a
1 changed files with 6 additions and 1 deletions
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7
drivers/hid/i2c-hid/i2c-hid-core.c
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@@ -51,6 +51,7 @@
#define I2C_HID_QUIRK_NO_WAKEUP_AFTER_RESET BIT(4)
#define I2C_HID_QUIRK_NO_SLEEP_ON_SUSPEND BIT(5)
#define I2C_HID_QUIRK_DELAY_WAKEUP_AFTER_RESUME BIT(6)
#define I2C_HID_QUIRK_RE_POWER_ON BIT(7)
/* Command opcodes */
#define I2C_HID_OPCODE_RESET 0x01
@@ -1073,7 +1074,11 @@ static int i2c_hid_core_register_hid(struct i2c_hid *ihid)
return ret;
}
return 0;
/* At least some QTEC devices need this after initialization */
if (ihid->quirks & I2C_HID_QUIRK_RE_POWER_ON)
ret = i2c_hid_set_power(ihid, I2C_HID_PWR_ON);
return ret;
}
static int i2c_hid_core_probe_panel_follower(struct i2c_hid *ihid)