From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Johan Hovold , Jingoo Han , Andrew Morton , Linus Torvalds Subject: [PATCH 3.10 012/173] backlight: atmel-pwm-bl: fix gpio polarity in remove Date: Mon, 2 Dec 2013 11:09:55 -0800 Message-Id: <20131202191144.325643949@linuxfoundation.org> In-Reply-To: <20131202191142.873808297@linuxfoundation.org> References: <20131202191142.873808297@linuxfoundation.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: 3.10-stable review patch. If anyone has any objections, please let me know. ------------------ From: Johan Hovold 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 Acked-by: Jingoo Han Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds Signed-off-by: Greg Kroah-Hartman --- 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 @@ -207,8 +207,10 @@ 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);