[Intel-gfx] [PATCH 1/4] drm/i915: stop using is_cpu_edp() in intel_disable/post_disable_dp

[Imre Deak]

On port A and for Valleyview on port C we can have only eDP and in both
cases it's a CPU port. So we can replace is_cpu_edp() with a port check
for these two cases. This allows us to remove is_cpu_edp() completely in
a later patch.

Signed-off-by: Imre Deak <imre.deak at intel.com>
---
 drivers/gpu/drm/i915/intel_dp.c |    7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index 4dae01a..90ae58a 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -1350,6 +1350,8 @@ static bool intel_dp_get_hw_state(struct intel_encoder *encoder,
 static void intel_disable_dp(struct intel_encoder *encoder)
 {
 	struct intel_dp *intel_dp = enc_to_intel_dp(&encoder->base);
+	enum port port = dp_to_dig_port(intel_dp)->port;
+	struct drm_device *dev = encoder->base.dev;
 
 	/* Make sure the panel is off before trying to change the mode. But also
 	 * ensure that we have vdd while we switch off the panel. */
@@ -1359,16 +1361,17 @@ static void intel_disable_dp(struct intel_encoder *encoder)
 	ironlake_edp_panel_off(intel_dp);
 
 	/* cpu edp my only be disable _after_ the cpu pipe/plane is disabled. */
-	if (!is_cpu_edp(intel_dp))
+	if (port != PORT_A && (port != PORT_C || !IS_VALLEYVIEW(dev)))
 		intel_dp_link_down(intel_dp);
 }
 
 static void intel_post_disable_dp(struct intel_encoder *encoder)
 {
 	struct intel_dp *intel_dp = enc_to_intel_dp(&encoder->base);
+	enum port port = dp_to_dig_port(intel_dp)->port;
 	struct drm_device *dev = encoder->base.dev;
 
-	if (is_cpu_edp(intel_dp)) {
+	if (port == PORT_A || (port == PORT_C && IS_VALLEYVIEW(dev))) {
 		intel_dp_link_down(intel_dp);
 		if (!IS_VALLEYVIEW(dev))
 			ironlake_edp_pll_off(intel_dp);
-- 
1.7.10.4