diff options
| author | Jani Nikula <jani.nikula@intel.com> | 2019-05-31 16:14:53 +0300 |
|---|---|---|
| committer | Jani Nikula <jani.nikula@intel.com> | 2019-06-05 15:02:55 +0300 |
| commit | cc21f01137a48919c1c5a443b341380ed3ea799a (patch) | |
| tree | 877eb063e11c246d6bd089532376ff55ff721f78 | |
| parent | 7679f9b8f6ee393ad204c6b2e09c7ae44a15a7c7 (diff) | |
| download | linux-cc21f01137a48919c1c5a443b341380ed3ea799a.tar.xz | |
drm/i915/bios: refactor DDC pin and AUX CH sanitize functions
Add separate functions to get the port by DDC pin and AUX channel.
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/a8b4afc08dd03e08c1403531e7f5ab33d777b1db.1559308269.git.jani.nikula@intel.com
| -rw-r--r-- | drivers/gpu/drm/i915/intel_bios.c | 48 |
1 files 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, |