From: Suraj Kandpal <suraj.kand...@intel.com>

Read PICA register to see if edp over type C is possible and then
add the appropriate tables for it.

--v2
-remove bool from intel_encoder have it in runtime_info [Jani]
-initialize the bool in runtime_info init [Jani]
-dont abbreviate the bool [Jani]

Bspec: 68846
Signed-off-by: Suraj Kandpal <suraj.kand...@intel.com>
Signed-off-by: Matt Atwood <matthew.s.atw...@intel.com>
Reviewed-by: Mika Kahola <mika.kah...@intel.com>
---
 drivers/gpu/drm/i915/display/intel_cx0_phy.c    |  4 ++++
 .../gpu/drm/i915/display/intel_display_device.c |  4 ++++
 .../gpu/drm/i915/display/intel_display_device.h |  1 +
 drivers/gpu/drm/i915/display/intel_dp.c         | 17 ++++++++++++++---
 drivers/gpu/drm/i915/display/intel_dp.h         |  5 +++++
 drivers/gpu/drm/i915/i915_reg.h                 |  3 +++
 6 files changed, 31 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_cx0_phy.c 
b/drivers/gpu/drm/i915/display/intel_cx0_phy.c
index f878ef1a97ec..37c66b32325d 100644
--- a/drivers/gpu/drm/i915/display/intel_cx0_phy.c
+++ b/drivers/gpu/drm/i915/display/intel_cx0_phy.c
@@ -2256,9 +2256,13 @@ intel_c20_pll_tables_get(struct intel_crtc_state 
*crtc_state,
                         struct intel_encoder *encoder)
 {
        struct drm_i915_private *i915 = to_i915(encoder->base.dev);
+       struct intel_display_runtime_info *display_runtime = 
DISPLAY_RUNTIME_INFO(i915);
 
        if (intel_crtc_has_dp_encoder(crtc_state)) {
                if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_EDP)) {
+                       if (DISPLAY_VER(i915) >= 30 &&
+                           display_runtime->edp_typec_support)
+                               return xe3lpd_c20_dp_edp_tables;
                        if (DISPLAY_VER_FULL(i915) == IP_VER(14, 1))
                                return xe2hpd_c20_edp_tables;
                }
diff --git a/drivers/gpu/drm/i915/display/intel_display_device.c 
b/drivers/gpu/drm/i915/display/intel_display_device.c
index aa22189e3853..8583c3529060 100644
--- a/drivers/gpu/drm/i915/display/intel_display_device.c
+++ b/drivers/gpu/drm/i915/display/intel_display_device.c
@@ -15,6 +15,7 @@
 #include "intel_display_params.h"
 #include "intel_display_power.h"
 #include "intel_display_reg_defs.h"
+#include "intel_dp.h"
 #include "intel_fbc.h"
 #include "intel_step.h"
 
@@ -1685,6 +1686,9 @@ static void 
__intel_display_device_info_runtime_init(struct drm_i915_private *i9
                }
        }
 
+       if (DISPLAY_VER(i915) >= 30)
+               intel_dp_check_edp_typec_support(display, display_runtime);
+
        display_runtime->rawclk_freq = intel_read_rawclk(display);
        drm_dbg_kms(&i915->drm, "rawclk rate: %d kHz\n", 
display_runtime->rawclk_freq);
 
diff --git a/drivers/gpu/drm/i915/display/intel_display_device.h 
b/drivers/gpu/drm/i915/display/intel_display_device.h
index 071a36b51f79..410f8b33a8a1 100644
--- a/drivers/gpu/drm/i915/display/intel_display_device.h
+++ b/drivers/gpu/drm/i915/display/intel_display_device.h
@@ -232,6 +232,7 @@ struct intel_display_runtime_info {
        bool has_hdcp;
        bool has_dmc;
        bool has_dsc;
+       bool edp_typec_support;
 };
 
 struct intel_display_device_info {
diff --git a/drivers/gpu/drm/i915/display/intel_dp.c 
b/drivers/gpu/drm/i915/display/intel_dp.c
index 7e04913bc2ff..be21e2743801 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -5571,6 +5571,16 @@ intel_dp_detect_sdp_caps(struct intel_dp *intel_dp)
                drm_dp_as_sdp_supported(&intel_dp->aux, intel_dp->dpcd);
 }
 
+void
+intel_dp_check_edp_typec_support(struct intel_display *display,
+                                struct intel_display_runtime_info 
*display_runtime)
+{
+       u32 ret = 0;
+
+       ret = intel_de_read(display, PICA_PHY_CONFIG_CONTROL);
+       display_runtime->edp_typec_support = ret & EDP_ON_TYPEC;
+}
+
 static int
 intel_dp_detect(struct drm_connector *connector,
                struct drm_modeset_acquire_ctx *ctx,
@@ -6440,10 +6450,11 @@ intel_dp_init_connector(struct intel_digital_port 
*dig_port,
 
        if (_intel_dp_is_port_edp(dev_priv, intel_encoder->devdata, port)) {
                /*
-                * Currently we don't support eDP on TypeC ports, although in
-                * theory it could work on TypeC legacy ports.
+                * Currently we don't support eDP on TypeC ports for 
DISPLAY_VER < 30,
+                * although in theory it could work on TypeC legacy ports.
                 */
-               drm_WARN_ON(dev, intel_encoder_is_tc(intel_encoder));
+               if (DISPLAY_VER(dev_priv) < 30)
+                       drm_WARN_ON(dev, intel_encoder_is_tc(intel_encoder));
                type = DRM_MODE_CONNECTOR_eDP;
                intel_encoder->type = INTEL_OUTPUT_EDP;
 
diff --git a/drivers/gpu/drm/i915/display/intel_dp.h 
b/drivers/gpu/drm/i915/display/intel_dp.h
index 60baf4072dc9..c6a80c4e2166 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.h
+++ b/drivers/gpu/drm/i915/display/intel_dp.h
@@ -20,6 +20,8 @@ struct intel_atomic_state;
 struct intel_connector;
 struct intel_crtc_state;
 struct intel_digital_port;
+struct intel_display;
+struct intel_display_runtime_info;
 struct intel_dp;
 struct intel_encoder;
 
@@ -204,5 +206,8 @@ bool intel_dp_link_params_valid(struct intel_dp *intel_dp, 
int link_rate,
                                u8 lane_count);
 bool intel_dp_has_connector(struct intel_dp *intel_dp,
                            const struct drm_connector_state *conn_state);
+void
+intel_dp_check_edp_typec_support(struct intel_display *display,
+                                struct intel_display_runtime_info 
*display_runtime);
 
 #endif /* __INTEL_DP_H__ */
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 8d758947f301..2743a2dd0a3d 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -4575,4 +4575,7 @@ enum skl_power_gate {
 
 #define MTL_MEDIA_GSI_BASE             0x380000
 
+#define PICA_PHY_CONFIG_CONTROL                _MMIO(0x16FE68)
+#define   EDP_ON_TYPEC                 REG_BIT(31)
+
 #endif /* _I915_REG_H_ */
-- 
2.45.0

Reply via email to