@@ -205,6 +205,32 @@ static int dsi_send_pkt_payld(struct intel_dsi_host *host,
return 0;
}
+void gen11_dsi_frame_update(struct intel_crtc_state *crtc_state)
+{
+ struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
+ struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
+ u32 tmp, flags;
+ enum port port;
+
+ flags = crtc->mode_flags;
+
+ /*
+ * case 1 also covers dual link
+ * In case of dual link, frame update should be set on
+ * DSI_0
+ */
+ if (flags & I915_MODE_FLAG_DSI_USE_TE0)
+ port = PORT_A;
+ else if (flags & I915_MODE_FLAG_DSI_USE_TE1)
+ port = PORT_B;
+ else
+ return;
+
+ tmp = intel_de_read(dev_priv, DSI_CMD_FRMCTL(port));
+ tmp |= DSI_FRAME_UPDATE_REQUEST;
+ intel_de_write(dev_priv, DSI_CMD_FRMCTL(port), tmp);
+}
+
static void dsi_program_swing_and_deemphasis(struct intel_encoder *encoder)
{
struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
@@ -15621,6 +15621,16 @@ static void intel_atomic_commit_tail(struct intel_atomic_state *state)
intel_set_cdclk_post_plane_update(state);
}
+ /*
+ * Incase of mipi dsi command mode, we need to set frame update
+ * for every commit
+ */
+ for_each_new_intel_crtc_in_state(state, crtc, new_crtc_state, i)
+ if (INTEL_GEN(dev_priv) >= 11 &&
+ intel_crtc_has_type(new_crtc_state, INTEL_OUTPUT_DSI))
+ if (new_crtc_state->hw.active)
+ icl_dsi_frame_update(new_crtc_state);
+
/* FIXME: We should call drm_atomic_helper_commit_hw_done() here
* already, but still need the state for the delayed optimization. To
* fix this:
@@ -167,6 +167,7 @@ static inline u16 intel_dsi_encoder_ports(struct intel_encoder *encoder)
/* icl_dsi.c */
void icl_dsi_init(struct drm_i915_private *dev_priv);
+void icl_dsi_frame_update(struct intel_crtc_state *crtc_state);
/* intel_dsi.c */
int intel_dsi_bitrate(const struct intel_dsi *intel_dsi);
In TE Gate mode or TE NO_GATE mode on every flip we need to set the frame update request bit. After this bit is set transcoder hardware will automatically send the frame data to the panel in case of TE NO_GATE mode, where it sends after it receives the TE event in case of TE_GATE mode. Once the frame data is sent to the panel, we see the frame counter updating. v2: Use intel_de_read/write v3: remove the usage of private_flags v4: Use icl_dsi in func names if non static, fix code formatting issues. (Jani) Signed-off-by: Vandita Kulkarni <vandita.kulkarni@intel.com> --- drivers/gpu/drm/i915/display/icl_dsi.c | 26 ++++++++++++++++++++ drivers/gpu/drm/i915/display/intel_display.c | 10 ++++++++ drivers/gpu/drm/i915/display/intel_dsi.h | 1 + 3 files changed, 37 insertions(+)