[PATCH v2] drm/i915: Avoid enum conversion warning

[Nick Desaulniers]

Fixes the following enum conversion warning:

drivers/gpu/drm/i915/intel_ddi.c:1481:30: error: implicit conversion
from enumeration type 'enum port' to different enumeration type 'enum
intel_dpll_id' [-Werror,-Wenum-conversion]
        enum intel_dpll_id pll_id = port;
                           ~~~~~~   ^~~~

Suggested-by: Daniel Vetter <daniel at ffwll.ch>
Signed-off-by: Nick Desaulniers <nick.desaulniers at gmail.com>
---
 drivers/gpu/drm/i915/intel_ddi.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c
index 933c18fd4258..3c346c8cbf78 100644
--- a/drivers/gpu/drm/i915/intel_ddi.c
+++ b/drivers/gpu/drm/i915/intel_ddi.c
@@ -1477,8 +1477,8 @@ static void bxt_ddi_clock_get(struct intel_encoder *encoder,
 				struct intel_crtc_state *pipe_config)
 {
 	struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
-	enum port port = intel_ddi_get_encoder_port(encoder);
-	enum intel_dpll_id pll_id = port;
+	enum intel_dpll_id pll_id =
+		(enum intel_dpll_id)intel_ddi_get_encoder_port(encoder);
 
 	pipe_config->port_clock = bxt_calc_pll_link(dev_priv, pll_id);
 
-- 
2.14.1