drm/i915/gvt: Reuse the gmbus pin macro

Reuse the gmbus pin macro from i915_reg.h file to improve readablity.

Reviewed-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: fred gao <fred.gao@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>

diff --git a/drivers/gpu/drm/i915/gvt/edid.c b/drivers/gpu/drm/i915/gvt/edid.c
index 5d4bb35..752aa0f 100644 (file)
--- a/drivers/gpu/drm/i915/gvt/edid.c
+++ b/drivers/gpu/drm/i915/gvt/edid.c
@@ -82,11 +82,11 @@ static inline int bxt_get_port_from_gmbus0(u32 gmbus0)
        int port_select = gmbus0 & _GMBUS_PIN_SEL_MASK;
        int port = -EINVAL;
 
-       if (port_select == 1)
+       if (port_select == GMBUS_PIN_1_BXT)
                port = PORT_B;
-       else if (port_select == 2)
+       else if (port_select == GMBUS_PIN_2_BXT)
                port = PORT_C;
-       else if (port_select == 3)
+       else if (port_select == GMBUS_PIN_3_BXT)
                port = PORT_D;
        return port;
 }
@@ -96,13 +96,13 @@ static inline int get_port_from_gmbus0(u32 gmbus0)
        int port_select = gmbus0 & _GMBUS_PIN_SEL_MASK;
        int port = -EINVAL;
 
-       if (port_select == 2)
+       if (port_select == GMBUS_PIN_VGADDC)
                port = PORT_E;
-       else if (port_select == 4)
+       else if (port_select == GMBUS_PIN_DPC)
                port = PORT_C;
-       else if (port_select == 5)
+       else if (port_select == GMBUS_PIN_DPB)
                port = PORT_B;
-       else if (port_select == 6)
+       else if (port_select == GMBUS_PIN_DPD)
                port = PORT_D;
        return port;
 }