Add separate functions to get the port by DDC pin and AUX channel.
Cc: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
Signed-off-by: Jani Nikula <jani.nikula@xxxxxxxxx>
---
drivers/gpu/drm/i915/intel_bios.c | 48 ++++++++++++++++++++++---------
1 file changed, 34 insertions(+), 14 deletions(-)
diff --git a/drivers/gpu/drm/i915/intel_bios.c b/drivers/gpu/drm/i915/intel_bios.c
index 325b8c8dfa5e..5cd4ddc8f5dd 100644
--- a/drivers/gpu/drm/i915/intel_bios.c
+++ b/drivers/gpu/drm/i915/intel_bios.c
@@ -1239,6 +1239,21 @@ static u8 translate_iboost(u8 val)
return mapping[val];
}
+static enum port get_port_by_ddc_pin(struct drm_i915_private *i915, u8 ddc_pin)
+{
+ const struct ddi_vbt_port_info *info;
+ enum port port;
+
+ for (port = PORT_A; port < I915_MAX_PORTS; port++) {
+ info = &i915->vbt.ddi_port_info[port];
+
+ if (info->child && ddc_pin == info->alternate_ddc_pin)
+ return port;
+ }
+
+ return PORT_NONE;
+}
+
static void sanitize_ddc_pin(struct drm_i915_private *dev_priv,
enum port port)
{
@@ -1248,13 +1263,8 @@ static void sanitize_ddc_pin(struct drm_i915_private *dev_priv,
if (!info->alternate_ddc_pin)
return;
- for (p = PORT_A; p < I915_MAX_PORTS; p++) {
- struct ddi_vbt_port_info *i = &dev_priv->vbt.ddi_port_info[p];
-
- if (p == port || !i->child ||
- info->alternate_ddc_pin != i->alternate_ddc_pin)
- continue;
-
+ p = get_port_by_ddc_pin(dev_priv, info->alternate_ddc_pin);
+ if (p != PORT_NONE) {
DRM_DEBUG_KMS("port %c trying to use the same DDC pin (0x%x) as port %c, "
"disabling port %c DVI/HDMI support\n",
port_name(port), info->alternate_ddc_pin,
@@ -1275,6 +1285,21 @@ static void sanitize_ddc_pin(struct drm_i915_private *dev_priv,
}
}
+static enum port get_port_by_aux_ch(struct drm_i915_private *i915, u8 aux_ch)
+{
+ const struct ddi_vbt_port_info *info;
+ enum port port;
+
+ for (port = PORT_A; port < I915_MAX_PORTS; port++) {
+ info = &i915->vbt.ddi_port_info[port];
+
+ if (info->child && aux_ch == info->alternate_aux_channel)
+ return port;
+ }
+
+ return PORT_NONE;
+}
+
static void sanitize_aux_ch(struct drm_i915_private *dev_priv,
enum port port)
{
@@ -1284,13 +1309,8 @@ static void sanitize_aux_ch(struct drm_i915_private *dev_priv,
if (!info->alternate_aux_channel)
return;
- for (p = PORT_A; p < I915_MAX_PORTS; p++) {
- struct ddi_vbt_port_info *i = &dev_priv->vbt.ddi_port_info[p];
-
- if (p == port || !i->child ||
- info->alternate_aux_channel != i->alternate_aux_channel)
- continue;
-
+ p = get_port_by_aux_ch(dev_priv, info->alternate_aux_channel);
+ if (p != PORT_NONE) {
DRM_DEBUG_KMS("port %c trying to use the same AUX CH (0x%x) as port %c, "
"disabling port %c DP support\n",
port_name(port), info->alternate_aux_channel,
--
2.20.1
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