drm/i915: add HAS_DDI check

And use it whenever we call code that uses the DDIs. We already have
intel_ddi.c and prefix every function with intel_ddi_something instead of
haswell_something, so I think replacing the checks with HAS_DDI makes more
sense. Just a cosmetical change, yes I know, but I have this OCD...

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

6 files changed, 19 insertions, 18 deletions

diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 9be7efd43c6a..e908c498ed87 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -1208,6 +1208,8 @@ struct drm_i915_file_private {
 
 #define HAS_PIPE_CONTROL(dev) (INTEL_INFO(dev)->gen >= 5)
 
+#define HAS_DDI(dev)            (IS_HASWELL(dev))
+
 #define INTEL_PCH_DEVICE_ID_MASK                0xff00
 #define INTEL_PCH_IBX_DEVICE_ID_TYPE            0x3b00
 #define INTEL_PCH_CPT_DEVICE_ID_TYPE            0x1c00
diff --git a/drivers/gpu/drm/i915/intel_crt.c b/drivers/gpu/drm/i915/intel_crt.c
index 5c7774396e10..bc07b3f0d5e7 100644
--- a/drivers/gpu/drm/i915/intel_crt.c
+++ b/drivers/gpu/drm/i915/intel_crt.c
@@ -771,7 +771,7 @@ void intel_crt_init(struct drm_device *dev)
 
         crt->base.disable = intel_disable_crt;
         crt->base.enable = intel_enable_crt;
-        if (IS_HASWELL(dev))
+        if (HAS_DDI(dev))
                 crt->base.get_hw_state = intel_ddi_get_hw_state;
         else
                 crt->base.get_hw_state = intel_crt_get_hw_state;
diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c
index 16d3e7854ced..197dede1870a 100644
--- a/drivers/gpu/drm/i915/intel_ddi.c
+++ b/drivers/gpu/drm/i915/intel_ddi.c
@@ -115,7 +115,7 @@ void intel_prepare_ddi(struct drm_device *dev)
 {
         int port;
 
-        if (IS_HASWELL(dev)) {
+        if (HAS_DDI(dev)) {
                 for (port = PORT_A; port < PORT_E; port++)
                         intel_prepare_ddi_buffers(dev, port, false);
 
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 511b397b5aaa..52b6b0e811bc 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -1072,8 +1072,8 @@ static void assert_fdi_tx(struct drm_i915_private *dev_priv,
         enum transcoder cpu_transcoder = intel_pipe_to_cpu_transcoder(dev_priv,
                                                                       pipe);
 
-        if (IS_HASWELL(dev_priv->dev)) {
-                /* On Haswell, DDI is used instead of FDI_TX_CTL */
+        if (HAS_DDI(dev_priv->dev)) {
+                /* DDI does not have a specific FDI_TX register */
                 reg = TRANS_DDI_FUNC_CTL(cpu_transcoder);
                 val = I915_READ(reg);
                 cur_state = !!(val & TRANS_DDI_FUNC_ENABLE);
@@ -1117,7 +1117,7 @@ static void assert_fdi_tx_pll_enabled(struct drm_i915_private *dev_priv,
                 return;
 
         /* On Haswell, DDI ports are responsible for the FDI PLL setup */
-        if (IS_HASWELL(dev_priv->dev))
+        if (HAS_DDI(dev_priv->dev))
                 return;
 
         reg = FDI_TX_CTL(pipe);
@@ -7976,7 +7976,7 @@ static const struct drm_crtc_funcs intel_crtc_funcs = {
 
 static void intel_cpu_pll_init(struct drm_device *dev)
 {
-        if (IS_HASWELL(dev))
+        if (HAS_DDI(dev))
                 intel_ddi_pll_init(dev);
 }
 
@@ -8112,11 +8112,10 @@ static void intel_setup_outputs(struct drm_device *dev)
                 I915_WRITE(PFIT_CONTROL, 0);
         }
 
-        if (!(IS_HASWELL(dev) &&
-              (I915_READ(DDI_BUF_CTL(PORT_A)) & DDI_A_4_LANES)))
+        if (!(HAS_DDI(dev) && (I915_READ(DDI_BUF_CTL(PORT_A)) & DDI_A_4_LANES)))
                 intel_crt_init(dev);
 
-        if (IS_HASWELL(dev)) {
+        if (HAS_DDI(dev)) {
                 int found;
 
                 /* Haswell uses DDI functions to detect digital outputs */
@@ -8360,7 +8359,7 @@ static void intel_init_display(struct drm_device *dev)
         struct drm_i915_private *dev_priv = dev->dev_private;
 
         /* We always want a DPMS function */
-        if (IS_HASWELL(dev)) {
+        if (HAS_DDI(dev)) {
                 dev_priv->display.crtc_mode_set = haswell_crtc_mode_set;
                 dev_priv->display.crtc_enable = haswell_crtc_enable;
                 dev_priv->display.crtc_disable = haswell_crtc_disable;
@@ -8849,7 +8848,7 @@ void intel_modeset_setup_hw_state(struct drm_device *dev,
         struct intel_encoder *encoder;
         struct intel_connector *connector;
 
-        if (IS_HASWELL(dev)) {
+        if (HAS_DDI(dev)) {
                 tmp = I915_READ(TRANS_DDI_FUNC_CTL(TRANSCODER_EDP));
 
                 if (tmp & TRANS_DDI_FUNC_ENABLE) {
@@ -8890,7 +8889,7 @@ void intel_modeset_setup_hw_state(struct drm_device *dev,
                               crtc->active ? "enabled" : "disabled");
         }
 
-        if (IS_HASWELL(dev))
+        if (HAS_DDI(dev))
                 intel_ddi_setup_hw_pll_state(dev);
 
         list_for_each_entry(encoder, &dev->mode_config.encoder_list,
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index d76258dcb8f8..f2904380a6f6 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -379,7 +379,7 @@ intel_dp_aux_ch(struct intel_dp *intel_dp,
          * clock divider.
          */
         if (is_cpu_edp(intel_dp)) {
-                if (IS_HASWELL(dev))
+                if (HAS_DDI(dev))
                         aux_clock_divider = intel_ddi_get_cdclk_freq(dev_priv) >> 1;
                 else if (IS_VALLEYVIEW(dev))
                         aux_clock_divider = 100;
@@ -1791,7 +1791,7 @@ intel_dp_start_link_train(struct intel_dp *intel_dp)
         int voltage_tries, loop_tries;
         uint32_t DP = intel_dp->DP;
 
-        if (IS_HASWELL(dev))
+        if (HAS_DDI(dev))
                 intel_ddi_prepare_link_retrain(encoder);
 
         /* Write the link configuration data */
@@ -1981,7 +1981,7 @@ intel_dp_link_down(struct intel_dp *intel_dp)
          *   intel_ddi_prepare_link_retrain will take care of redoing the link
          *   train.
          */
-        if (IS_HASWELL(dev))
+        if (HAS_DDI(dev))
                 return;
 
         if (WARN_ON((I915_READ(intel_dp->output_reg) & DP_PORT_EN) == 0))
@@ -2742,7 +2742,7 @@ intel_dp_init_connector(struct intel_digital_port *intel_dig_port,
         intel_connector_attach_encoder(intel_connector, intel_encoder);
         drm_sysfs_connector_add(connector);
 
-        if (IS_HASWELL(dev))
+        if (HAS_DDI(dev))
                 intel_connector->get_hw_state = intel_ddi_connector_get_hw_state;
         else
                 intel_connector->get_hw_state = intel_connector_get_hw_state;
diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c
index 2ee9821b9d93..53df0a88a6a8 100644
--- a/drivers/gpu/drm/i915/intel_hdmi.c
+++ b/drivers/gpu/drm/i915/intel_hdmi.c
@@ -48,7 +48,7 @@ assert_hdmi_port_disabled(struct intel_hdmi *intel_hdmi)
         struct drm_i915_private *dev_priv = dev->dev_private;
         uint32_t enabled_bits;
 
-        enabled_bits = IS_HASWELL(dev) ? DDI_BUF_CTL_ENABLE : SDVO_ENABLE;
+        enabled_bits = HAS_DDI(dev) ? DDI_BUF_CTL_ENABLE : SDVO_ENABLE;
 
         WARN(I915_READ(intel_hdmi->sdvox_reg) & enabled_bits,
              "HDMI port enabled, expecting disabled\n");
@@ -1013,7 +1013,7 @@ void intel_hdmi_init_connector(struct intel_digital_port *intel_dig_port,
                 intel_hdmi->set_infoframes = cpt_set_infoframes;
         }
 
-        if (IS_HASWELL(dev))
+        if (HAS_DDI(dev))
                 intel_connector->get_hw_state = intel_ddi_connector_get_hw_state;
         else
                 intel_connector->get_hw_state = intel_connector_get_hw_state;