drm/i915/sdov: switch IS_SDVOB to a flag

With valleyview we'll have these at yet another address, so keeping
track of this with an ever-growing list of registers will get ugly.

This way intel_sdvo.c is fully independent of the base address of the
output ports display register blocks.

While at it, do 2 closely related cleanups:
- use SDVO_NAME some more
- change the sdvo_reg variables to uint32_t like other registers.

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

3 files changed, 23 insertions, 19 deletions

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index a0e31660381c..a7c2ddc96f0e 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -7810,7 +7810,7 @@ static void intel_setup_outputs(struct drm_device *dev)
 
                 if (I915_READ(HDMIB) & PORT_DETECTED) {
                         /* PCH SDVOB multiplex with HDMIB */
-                        found = intel_sdvo_init(dev, PCH_SDVOB);
+                        found = intel_sdvo_init(dev, PCH_SDVOB, true);
                         if (!found)
                                 intel_hdmi_init(dev, HDMIB);
                         if (!found && (I915_READ(PCH_DP_B) & DP_DETECTED))
@@ -7834,7 +7834,7 @@ static void intel_setup_outputs(struct drm_device *dev)
 
                 if (I915_READ(SDVOB) & SDVO_DETECTED) {
                         DRM_DEBUG_KMS("probing SDVOB\n");
-                        found = intel_sdvo_init(dev, SDVOB);
+                        found = intel_sdvo_init(dev, SDVOB, true);
                         if (!found && SUPPORTS_INTEGRATED_HDMI(dev)) {
                                 DRM_DEBUG_KMS("probing HDMI on SDVOB\n");
                                 intel_hdmi_init(dev, SDVOB);
@@ -7850,7 +7850,7 @@ static void intel_setup_outputs(struct drm_device *dev)
 
                 if (I915_READ(SDVOB) & SDVO_DETECTED) {
                         DRM_DEBUG_KMS("probing SDVOC\n");
-                        found = intel_sdvo_init(dev, SDVOC);
+                        found = intel_sdvo_init(dev, SDVOC, false);
                 }
 
                 if (!found && (I915_READ(SDVOC) & SDVO_DETECTED)) {
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index 9cec6c3937fa..219efe3b9ad5 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -293,7 +293,8 @@ extern void intel_attach_broadcast_rgb_property(struct drm_connector *connector)
 extern void intel_crt_init(struct drm_device *dev);
 extern void intel_hdmi_init(struct drm_device *dev, int sdvox_reg);
 void intel_dip_infoframe_csum(struct dip_infoframe *avi_if);
-extern bool intel_sdvo_init(struct drm_device *dev, int output_device);
+extern bool intel_sdvo_init(struct drm_device *dev, uint32_t sdvo_reg,
+                            bool is_sdvob);
 extern void intel_dvo_init(struct drm_device *dev);
 extern void intel_tv_init(struct drm_device *dev);
 extern void intel_mark_busy(struct drm_device *dev,
diff --git a/drivers/gpu/drm/i915/intel_sdvo.c b/drivers/gpu/drm/i915/intel_sdvo.c
index e36b171c1e7d..70fb275cd205 100644
--- a/drivers/gpu/drm/i915/intel_sdvo.c
+++ b/drivers/gpu/drm/i915/intel_sdvo.c
@@ -74,7 +74,7 @@ struct intel_sdvo {
         struct i2c_adapter ddc;
 
         /* Register for the SDVO device: SDVOB or SDVOC */
-        int sdvo_reg;
+        uint32_t sdvo_reg;
 
         /* Active outputs controlled by this SDVO output */
         uint16_t controlled_output;
@@ -114,6 +114,9 @@ struct intel_sdvo {
          */
         bool is_tv;
 
+        /* On different gens SDVOB is at different places. */
+        bool is_sdvob;
+
         /* This is for current tv format name */
         int tv_format_index;
 
@@ -403,8 +406,7 @@ static const struct _sdvo_cmd_name {
         SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_HBUF_DATA),
 };
 
-#define IS_SDVOB(reg)   (reg == SDVOB || reg == PCH_SDVOB)
-#define SDVO_NAME(svdo) (IS_SDVOB((svdo)->sdvo_reg) ? "SDVOB" : "SDVOC")
+#define SDVO_NAME(svdo) ((svdo)->is_sdvob ? "SDVOB" : "SDVOC")
 
 static void intel_sdvo_debug_write(struct intel_sdvo *intel_sdvo, u8 cmd,
                                    const void *args, int args_len)
@@ -1893,7 +1895,7 @@ intel_sdvo_select_ddc_bus(struct drm_i915_private *dev_priv,
 {
         struct sdvo_device_mapping *mapping;
 
-        if (IS_SDVOB(reg))
+        if (sdvo->is_sdvob)
                 mapping = &(dev_priv->sdvo_mappings[0]);
         else
                 mapping = &(dev_priv->sdvo_mappings[1]);
@@ -1911,7 +1913,7 @@ intel_sdvo_select_i2c_bus(struct drm_i915_private *dev_priv,
         struct sdvo_device_mapping *mapping;
         u8 pin;
 
-        if (IS_SDVOB(reg))
+        if (sdvo->is_sdvob)
                 mapping = &dev_priv->sdvo_mappings[0];
         else
                 mapping = &dev_priv->sdvo_mappings[1];
@@ -1936,12 +1938,12 @@ intel_sdvo_is_hdmi_connector(struct intel_sdvo *intel_sdvo, int device)
 }
 
 static u8
-intel_sdvo_get_slave_addr(struct drm_device *dev, int sdvo_reg)
+intel_sdvo_get_slave_addr(struct drm_device *dev, struct intel_sdvo *sdvo)
 {
         struct drm_i915_private *dev_priv = dev->dev_private;
         struct sdvo_device_mapping *my_mapping, *other_mapping;
 
-        if (IS_SDVOB(sdvo_reg)) {
+        if (sdvo->is_sdvob) {
                 my_mapping = &dev_priv->sdvo_mappings[0];
                 other_mapping = &dev_priv->sdvo_mappings[1];
         } else {
@@ -1966,7 +1968,7 @@ intel_sdvo_get_slave_addr(struct drm_device *dev, int sdvo_reg)
         /* No SDVO device info is found for another DVO port,
          * so use mapping assumption we had before BIOS parsing.
          */
-        if (IS_SDVOB(sdvo_reg))
+        if (sdvo->is_sdvob)
                 return 0x70;
         else
                 return 0x72;
@@ -2482,7 +2484,7 @@ intel_sdvo_init_ddc_proxy(struct intel_sdvo *sdvo,
         return i2c_add_adapter(&sdvo->ddc) == 0;
 }
 
-bool intel_sdvo_init(struct drm_device *dev, int sdvo_reg)
+bool intel_sdvo_init(struct drm_device *dev, uint32_t sdvo_reg, bool is_sdvob)
 {
         struct drm_i915_private *dev_priv = dev->dev_private;
         struct intel_encoder *intel_encoder;
@@ -2494,7 +2496,8 @@ bool intel_sdvo_init(struct drm_device *dev, int sdvo_reg)
                 return false;
 
         intel_sdvo->sdvo_reg = sdvo_reg;
-        intel_sdvo->slave_addr = intel_sdvo_get_slave_addr(dev, sdvo_reg) >> 1;
+        intel_sdvo->is_sdvob = is_sdvob;
+        intel_sdvo->slave_addr = intel_sdvo_get_slave_addr(dev, intel_sdvo) >> 1;
         intel_sdvo_select_i2c_bus(dev_priv, intel_sdvo, sdvo_reg);
         if (!intel_sdvo_init_ddc_proxy(intel_sdvo, dev)) {
                 kfree(intel_sdvo);
@@ -2511,13 +2514,13 @@ bool intel_sdvo_init(struct drm_device *dev, int sdvo_reg)
                 u8 byte;
 
                 if (!intel_sdvo_read_byte(intel_sdvo, i, &byte)) {
-                        DRM_DEBUG_KMS("No SDVO device found on SDVO%c\n",
-                                      IS_SDVOB(sdvo_reg) ? 'B' : 'C');
+                        DRM_DEBUG_KMS("No SDVO device found on %s\n",
+                                      SDVO_NAME(intel_sdvo));
                         goto err;
                 }
         }
 
-        if (IS_SDVOB(sdvo_reg))
+        if (intel_sdvo->is_sdvob)
                 dev_priv->hotplug_supported_mask |= SDVOB_HOTPLUG_INT_STATUS;
         else
                 dev_priv->hotplug_supported_mask |= SDVOC_HOTPLUG_INT_STATUS;
@@ -2538,8 +2541,8 @@ bool intel_sdvo_init(struct drm_device *dev, int sdvo_reg)
 
         if (intel_sdvo_output_setup(intel_sdvo,
                                     intel_sdvo->caps.output_flags) != true) {
-                DRM_DEBUG_KMS("SDVO output failed to setup on SDVO%c\n",
-                              IS_SDVOB(sdvo_reg) ? 'B' : 'C');
+                DRM_DEBUG_KMS("SDVO output failed to setup on %s\n",
+                              SDVO_NAME(intel_sdvo));
                 goto err;
         }