[PATCH 24/47] drm/i915: set the correct function pointers for Haswell DP

Paulo Zanoni
2012-10-02T20:53:37Z

This is the final remaining piece of Haswell DP enablement. After this
patch, just calling intel_dp_init on any port will make DP work. We
still do not do this because we're currently initializing HDMI on all
the ports, so if we replace intel_hdmi_init with intel_dp_init, we
will break HDMI, and we can't call both because they share the same
registers.

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
---
drivers/gpu/drm/i915/intel_dp.c | 32 ++++++++++++++++++++++++++------
1 file changed, 26 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index 72fc184..a260531 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -2554,6 +2554,12 @@ static const struct drm_encoder_helper_funcs intel_dp_helper_funcs = {
.disable = intel_encoder_noop,
};

+static const struct drm_encoder_helper_funcs intel_dp_helper_funcs_hsw = {
+ .mode_fixup = intel_dp_mode_fixup,
+ .mode_set = intel_ddi_mode_set,
+ .disable = intel_encoder_noop,
+};
+
static const struct drm_connector_funcs intel_dp_connector_funcs = {
.dpms = intel_connector_dpms,
.detect = intel_dp_detect,
@@ -2689,16 +2695,30 @@ intel_dp_init(struct drm_device *dev, int output_reg, enum port port)

drm_encoder_init(dev, &intel_encoder->base, &intel_dp_enc_funcs,
DRM_MODE_ENCODER_TMDS);
- drm_encoder_helper_add(&intel_encoder->base, &intel_dp_helper_funcs);
+
+ if (IS_HASWELL(dev))
+ drm_encoder_helper_add(&intel_encoder->base,
+ &intel_dp_helper_funcs_hsw);
+ else
+ drm_encoder_helper_add(&intel_encoder->base,
+ &intel_dp_helper_funcs);

intel_connector_attach_encoder(intel_connector, intel_encoder);
drm_sysfs_connector_add(connector);

- intel_encoder->enable = intel_enable_dp;
- intel_encoder->pre_enable = intel_pre_enable_dp;
- intel_encoder->disable = intel_disable_dp;
- intel_encoder->post_disable = intel_post_disable_dp;
- intel_encoder->get_hw_state = intel_dp_get_hw_state;
+ if (IS_HASWELL(dev)) {
+ intel_encoder->enable = intel_enable_ddi;
+ intel_encoder->pre_enable = intel_ddi_pre_enable;
+ intel_encoder->disable = intel_disable_ddi;
+ intel_encoder->post_disable = intel_ddi_post_disable;
+ intel_encoder->get_hw_state = intel_ddi_get_hw_state;
+ } else {
+ intel_encoder->enable = intel_enable_dp;
+ intel_encoder->pre_enable = intel_pre_enable_dp;
+ intel_encoder->disable = intel_disable_dp;
+ intel_encoder->post_disable = intel_post_disable_dp;
+ intel_encoder->get_hw_state = intel_dp_get_hw_state;
+ }
intel_connector->get_hw_state = intel_connector_get_hw_state;

/* Set up the DDC bus. */
--
1.7.10.4