drm/i915: Don't offset the pin used for crt_ddc

Previously when converting the GMBUS pin to the GPIO reg, we would
offset the pin by one and then use the look-up table. Now that we first
try to use the GMBUS pin, we no longer need the offset and can use the
value from the VBIOS directly.

Reported-by: Carlos R. Mafra <crmafra2@gmail.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>

diff --git a/drivers/gpu/drm/i915/intel_bios.c b/drivers/gpu/drm/i915/intel_bios.c
index d11bbca..123e31d 100644 (file)
--- a/drivers/gpu/drm/i915/intel_bios.c
+++ b/drivers/gpu/drm/i915/intel_bios.c
@@ -299,7 +299,7 @@ parse_general_definitions(struct drm_i915_private *dev_priv,
                        int bus_pin = general->crt_ddc_gmbus_pin;
                        DRM_DEBUG_KMS("crt_ddc_bus_pin: %d\n", bus_pin);
                        if (bus_pin >= 1 && bus_pin <= 6)
-                               dev_priv->crt_ddc_pin = bus_pin - 1;
+                               dev_priv->crt_ddc_pin = bus_pin;
                } else {
                        DRM_DEBUG_KMS("BDB_GD too small (%d). Invalid.\n",
                                  block_size);