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

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Date:   Sun, 26 Nov 2017 19:49:14 -0800
From:   Nick Desaulniers <nick.desaulniers@...il.com>
To:     unlisted-recipients:; (no To-header on input)
Cc:     mika.kahola@...el.com, paulo.r.zanoni@...el.com, mka@...omium.org,
        daniel@...ll.ch, Nick Desaulniers <nick.desaulniers@...il.com>,
        Jani Nikula <jani.nikula@...ux.intel.com>,
        Joonas Lahtinen <joonas.lahtinen@...ux.intel.com>,
        Rodrigo Vivi <rodrigo.vivi@...el.com>,
        David Airlie <airlied@...ux.ie>,
        intel-gfx@...ts.freedesktop.org, dri-devel@...ts.freedesktop.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH v2] drm/i915: Avoid enum conversion warning

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@...ll.ch>
Signed-off-by: Nick Desaulniers <nick.desaulniers@...il.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