drm/i915: add encoder get_config function v5
We can use this for fetching encoder specific pipe_config state, like
mode flags, adjusted clock, etc.
Just used for mode flags atm, so we can check the pipe config state at
mode set time.
v2: get_config when checking hw state too
v3: fix DVO and LVDS mode flags (Ville)
get SDVO DTD for flag fetch (Ville)
v4: use input timings (Ville)
correct command used (Ville)
remove gen4 check (Ville)
v5: get DDI flag config too
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> (v4)
Tested-by: Paulo Zanoni <przanoni@gmail.com> (the new hsw ddi stuff)
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c
index 062de67..e668521 100644
--- a/drivers/gpu/drm/i915/intel_ddi.c
+++ b/drivers/gpu/drm/i915/intel_ddi.c
@@ -1259,6 +1259,28 @@
intel_dp_check_link_status(intel_dp);
}
+static void intel_ddi_get_config(struct intel_encoder *encoder,
+ struct intel_crtc_config *pipe_config)
+{
+ struct drm_i915_private *dev_priv = encoder->base.dev->dev_private;
+ struct intel_crtc *intel_crtc = to_intel_crtc(encoder->base.crtc);
+ enum transcoder cpu_transcoder = intel_crtc->config.cpu_transcoder;
+ u32 temp, flags = 0;
+
+ temp = I915_READ(TRANS_DDI_FUNC_CTL(cpu_transcoder));
+ if (temp & TRANS_DDI_PHSYNC)
+ flags |= DRM_MODE_FLAG_PHSYNC;
+ else
+ flags |= DRM_MODE_FLAG_NHSYNC;
+ if (temp & TRANS_DDI_PVSYNC)
+ flags |= DRM_MODE_FLAG_PVSYNC;
+ else
+ flags |= DRM_MODE_FLAG_NVSYNC;
+
+ pipe_config->adjusted_mode.flags |= flags;
+ pipe_config->pixel_multiplier = 1;
+}
+
static void intel_ddi_destroy(struct drm_encoder *encoder)
{
/* HDMI has nothing special to destroy, so we can go with this. */
@@ -1318,6 +1340,7 @@
intel_encoder->disable = intel_disable_ddi;
intel_encoder->post_disable = intel_ddi_post_disable;
intel_encoder->get_hw_state = intel_ddi_get_hw_state;
+ intel_encoder->get_config = intel_ddi_get_config;
intel_dig_port->port = port;
intel_dig_port->port_reversal = I915_READ(DDI_BUF_CTL(port)) &