[PATCH v6 11/22] drm/i915/mtl: Dump C20 pll hw state

[Mika Kahola]

As we already do with C10 chip, let's dump the pll
hw state for C20 as well.

Signed-off-by: Mika Kahola <mika.kahola at intel.com>
---
 drivers/gpu/drm/i915/display/intel_cx0_phy.c | 20 ++++++++++++++++++++
 drivers/gpu/drm/i915/display/intel_cx0_phy.h |  2 ++
 drivers/gpu/drm/i915/display/intel_ddi.c     |  1 +
 3 files changed, 23 insertions(+)

diff --git a/drivers/gpu/drm/i915/display/intel_cx0_phy.c b/drivers/gpu/drm/i915/display/intel_cx0_phy.c
index cccf4eb3025c..29d2d6a4569b 100644
--- a/drivers/gpu/drm/i915/display/intel_cx0_phy.c
+++ b/drivers/gpu/drm/i915/display/intel_cx0_phy.c
@@ -1921,6 +1921,26 @@ void intel_c20pll_readout_hw_state(struct intel_encoder *encoder,
 	}
 }
 
+void intel_c20pll_dump_hw_state(struct drm_i915_private *i915,
+				const struct intel_c20pll_state *hw_state)
+{
+	int i;
+
+	drm_dbg_kms(&i915->drm, "c20pll_hw_state:\n");
+	drm_dbg_kms(&i915->drm, "tx[0] = 0x%.4x, tx[1] = 0x%.4x, tx[2] = 0x%.4x\n",
+		    hw_state->tx[0], hw_state->tx[1], hw_state->tx[2]);
+	drm_dbg_kms(&i915->drm, "cmn[0] = 0x%.4x, cmn[1] = 0x%.4x, cmn[2] = 0x%.4x, cmn[3] = 0x%.4x\n",
+		    hw_state->cmn[0], hw_state->cmn[1], hw_state->cmn[2], hw_state->cmn[3]);
+
+	if (intel_c20_use_mplla(hw_state->clock)) {
+		for (i = 0; i < ARRAY_SIZE(hw_state->mplla); i++)
+			drm_dbg_kms(&i915->drm, "mplla[%d] = 0x%.4x\n", i, hw_state->mplla[i]);
+	} else {
+		for (i = 0; i < ARRAY_SIZE(hw_state->mpllb); i++)
+			drm_dbg_kms(&i915->drm, "mpllb[%d] = 0x%.4x\n", i, hw_state->mpllb[i]);
+	}
+}
+
 static u8 intel_c20_get_dp_rate(u32 clock)
 {
 	switch (clock) {
diff --git a/drivers/gpu/drm/i915/display/intel_cx0_phy.h b/drivers/gpu/drm/i915/display/intel_cx0_phy.h
index 86edbc4b1718..298a50649f0f 100644
--- a/drivers/gpu/drm/i915/display/intel_cx0_phy.h
+++ b/drivers/gpu/drm/i915/display/intel_cx0_phy.h
@@ -39,6 +39,8 @@ void intel_c20pll_readout_hw_state(struct intel_encoder *encoder,
                                    struct intel_c20pll_state *pll_state);
 void intel_c10mpllb_dump_hw_state(struct drm_i915_private *dev_priv,
 				  const struct intel_c10mpllb_state *hw_state);
+void intel_c20pll_dump_hw_state(struct drm_i915_private *i915,
+				const struct intel_c20pll_state *hw_state);
 int intel_c10mpllb_calc_port_clock(struct intel_encoder *encoder,
 				   const struct intel_c10mpllb_state *pll_state);
 void intel_c10mpllb_state_verify(struct intel_atomic_state *state,
diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c
index c80d9c938687..cb9d78c03f2d 100644
--- a/drivers/gpu/drm/i915/display/intel_ddi.c
+++ b/drivers/gpu/drm/i915/display/intel_ddi.c
@@ -3524,6 +3524,7 @@ static void mtl_ddi_get_config(struct intel_encoder *encoder,
 		intel_c10mpllb_dump_hw_state(i915, &crtc_state->cx0pll_state.c10mpllb_state);
 	} else {
 		intel_c20pll_readout_hw_state(encoder, &crtc_state->cx0pll_state.c20pll_state);
+		intel_c20pll_dump_hw_state(i915, &crtc_state->cx0pll_state.c20pll_state);
 	}
 
 	crtc_state->port_clock = intel_c10mpllb_calc_port_clock(encoder, &crtc_state->cx0pll_state.c10mpllb_state);
-- 
2.34.1