Changing the return type from 'char' to 'enum port' in
intel_dvo_port_name() makes it easier to later move the port information to
intel_encoder. In addition, the port type conforms to what we have
elsewhere.

Removing the last conditional that handles invalid port because dvo_reg is
intialized to valid values for all DVO devices at definition.

v2: Changed return type, for real (Jani)

Signed-off-by: Dhinakaran Pandiyan <dhinakaran.pandi...@intel.com>
---
 drivers/gpu/drm/i915/intel_dvo.c | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_dvo.c b/drivers/gpu/drm/i915/intel_dvo.c
index 2e452c5..6489755 100644
--- a/drivers/gpu/drm/i915/intel_dvo.c
+++ b/drivers/gpu/drm/i915/intel_dvo.c
@@ -412,16 +412,14 @@ intel_dvo_get_current_mode(struct drm_connector 
*connector)
        return mode;
 }
 
-static char intel_dvo_port_name(i915_reg_t dvo_reg)
+static enum port intel_dvo_port(i915_reg_t dvo_reg)
 {
        if (i915_mmio_reg_equal(dvo_reg, DVOA))
-               return 'A';
+               return PORT_A;
        else if (i915_mmio_reg_equal(dvo_reg, DVOB))
-               return 'B';
-       else if (i915_mmio_reg_equal(dvo_reg, DVOC))
-               return 'C';
+               return PORT_B;
        else
-               return '?';
+               return PORT_C;
 }
 
 void intel_dvo_init(struct drm_device *dev)
@@ -464,6 +462,7 @@ void intel_dvo_init(struct drm_device *dev)
                bool dvoinit;
                enum pipe pipe;
                uint32_t dpll[I915_MAX_PIPES];
+               enum port port;
 
                /* Allow the I2C driver info to specify the GPIO to be used in
                 * special cases, but otherwise default to what's defined
@@ -511,9 +510,10 @@ void intel_dvo_init(struct drm_device *dev)
                if (!dvoinit)
                        continue;
 
+               port = intel_dvo_port(dvo->dvo_reg);
                drm_encoder_init(dev, &intel_encoder->base,
                                 &intel_dvo_enc_funcs, encoder_type,
-                                "DVO %c", intel_dvo_port_name(dvo->dvo_reg));
+                                "DVO %c", port_name(port));
 
                intel_encoder->type = INTEL_OUTPUT_DVO;
                intel_encoder->crtc_mask = (1 << 0) | (1 << 1);
-- 
2.5.0

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