unicore32: Initialize PWM backlight enable_gpio field

The GPIO API defines 0 as being a valid GPIO number, so this field needs
to be initialized explicitly.

Signed-off-by: Thierry Reding <treding@nvidia.com>

diff --git a/arch/unicore32/kernel/puv3-nb0916.c b/arch/unicore32/kernel/puv3-nb0916.c
index 181108b8ecce766d0102b9e12ac070e6510337b0..0c6618e7189782674af77f9130ede7b3c71d39e6 100644 (file)
--- a/arch/unicore32/kernel/puv3-nb0916.c
+++ b/arch/unicore32/kernel/puv3-nb0916.c
@@ -54,6 +54,7 @@ static struct platform_pwm_backlight_data nb0916_backlight_data = {
        .max_brightness = 100,
        .dft_brightness = 100,
        .pwm_period_ns  = 70 * 1024,
+       .enable_gpio    = -1,
 };
 
 static struct gpio_keys_button nb0916_gpio_keys[] = {