[PATCH 08/17] drm/i915/ddi: Move platform checks within mtl_ddi_enable/disable_d2d_link()

[Imre Deak]

The prefix of the mtl_ddi_enable_d2d() / mtl_ddi_disable_d2d_link()
names show already what are the relevant platforms, so the corresponding
platform check is a detail that can be hidden in the functions, do so.

Signed-off-by: Imre Deak <imre.deak at intel.com>
---
 drivers/gpu/drm/i915/display/intel_ddi.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c
index d040558b5d029..07188606a0177 100644
--- a/drivers/gpu/drm/i915/display/intel_ddi.c
+++ b/drivers/gpu/drm/i915/display/intel_ddi.c
@@ -2545,6 +2545,9 @@ mtl_ddi_enable_d2d(struct intel_encoder *encoder)
 	i915_reg_t reg;
 	u32 set_bits, wait_bits;
 
+	if (DISPLAY_VER(dev_priv) < 14)
+		return;
+
 	if (DISPLAY_VER(dev_priv) >= 20) {
 		reg = DDI_BUF_CTL(port);
 		set_bits = XE2LPD_DDI_BUF_D2D_LINK_ENABLE;
@@ -3035,6 +3038,9 @@ mtl_ddi_disable_d2d_link(struct intel_encoder *encoder)
 	i915_reg_t reg;
 	u32 clr_bits, wait_bits;
 
+	if (DISPLAY_VER(dev_priv) < 14)
+		return;
+
 	if (DISPLAY_VER(dev_priv) >= 20) {
 		reg = DDI_BUF_CTL(port);
 		clr_bits = XE2LPD_DDI_BUF_D2D_LINK_ENABLE;
@@ -3411,8 +3417,7 @@ static void intel_ddi_enable_hdmi(struct intel_atomic_state *state,
 		hsw_prepare_hdmi_ddi_buffers(encoder, crtc_state);
 
 	/* e. Enable D2D Link for C10/C20 Phy */
-	if (DISPLAY_VER(dev_priv) >= 14)
-		mtl_ddi_enable_d2d(encoder);
+	mtl_ddi_enable_d2d(encoder);
 
 	encoder->set_signal_levels(encoder, crtc_state);
 
-- 
2.44.2