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    Subject[PATCH 4.10 003/129] hwmon: (it87) Fix pwm4 detection for IT8620 and IT8628
    Date
    4.10-stable review patch.  If anyone has any objections, please let me know.

    ------------------

    From: Guenter Roeck <linux@roeck-us.net>

    commit d66777caa57ffade6061782f3a4d4056f0b0c1ac upstream.

    pwm4 is enabled if bit 2 of GPIO control register 4 is disabled,
    not when it is enabled. Since the check is for the skip condition,
    it is reversed. This applies to both IT8620 and IT8628.

    Fixes: 36c4d98a7883d ("hwmon: (it87) Add support for all pwm channels ...")
    Signed-off-by: Guenter Roeck <linux@roeck-us.net>
    Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

    ---
    drivers/hwmon/it87.c | 2 +-
    1 file changed, 1 insertion(+), 1 deletion(-)

    --- a/drivers/hwmon/it87.c
    +++ b/drivers/hwmon/it87.c
    @@ -2600,7 +2600,7 @@ static int __init it87_find(int sioaddr,

    /* Check for pwm4 */
    reg = superio_inb(sioaddr, IT87_SIO_GPIO4_REG);
    - if (!(reg & BIT(2)))
    + if (reg & BIT(2))
    sio_data->skip_pwm |= BIT(3);

    /* Check for pwm2, fan2 */

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