drm/i915: fix gpio register detection logic for BIOS without VBT

[karo-tx-linux.git] / drivers / gpu / drm / i915 / intel_crt.c

diff --git a/drivers/gpu/drm/i915/intel_crt.c b/drivers/gpu/drm/i915/intel_crt.c
index 0864a2c40856181aa035cff406cd6e5ed3f01e72..477a61c5402bd558fda68c7e1dffd5c88267ed0a 100644 (file)
--- a/drivers/gpu/drm/i915/intel_crt.c
+++ b/drivers/gpu/drm/i915/intel_crt.c
@@ -526,7 +526,7 @@ void intel_crt_init(struct drm_device *dev)
        else {
                i2c_reg = GPIOA;
                /* Use VBT information for CRT DDC if available */
-               if (dev_priv->crt_ddc_bus != -1)
+               if (dev_priv->crt_ddc_bus != 0)
                        i2c_reg = dev_priv->crt_ddc_bus;
        }
        intel_output->ddc_bus = intel_i2c_create(dev, i2c_reg, "CRTDDC_A");