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    Subject[PATCH 3.12 016/212] backlight: atmel-pwm-bl: fix gpio polarity in remove
    Date
    3.12-stable review patch.  If anyone has any objections, please let me know.

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

    From: Johan Hovold <jhovold@gmail.com>

    commit ad5066d4c2b1d696749f8d7816357c23b648c4d3 upstream.

    Make sure to honour gpio polarity also at remove so that the backlight is
    actually disabled on boards with active-low enable pin.

    Signed-off-by: Johan Hovold <jhovold@gmail.com>
    Acked-by: Jingoo Han <jg1.han@samsung.com>
    Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
    Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
    Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

    ---
    drivers/video/backlight/atmel-pwm-bl.c | 6 ++++--
    1 file changed, 4 insertions(+), 2 deletions(-)

    --- a/drivers/video/backlight/atmel-pwm-bl.c
    +++ b/drivers/video/backlight/atmel-pwm-bl.c
    @@ -206,8 +206,10 @@ static int atmel_pwm_bl_remove(struct pl
    {
    struct atmel_pwm_bl *pwmbl = platform_get_drvdata(pdev);

    - if (pwmbl->gpio_on != -1)
    - gpio_set_value(pwmbl->gpio_on, 0);
    + if (pwmbl->gpio_on != -1) {
    + gpio_set_value(pwmbl->gpio_on,
    + 0 ^ pwmbl->pdata->on_active_low);
    + }
    pwm_channel_disable(&pwmbl->pwmc);
    pwm_channel_free(&pwmbl->pwmc);
    backlight_device_unregister(pwmbl->bldev);



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