diff --git a/drivers/gpu/drm/i915/display/intel_cx0_phy.c b/drivers/gpu/drm/i915/display/intel_cx0_phy.c
index 5ebc90d210d4..857262fcbac9 100644
--- a/drivers/gpu/drm/i915/display/intel_cx0_phy.c
+++ b/drivers/gpu/drm/i915/display/intel_cx0_phy.c
@@ -2173,9 +2173,47 @@ static void intel_c10pll_dump_hw_state(struct intel_display *display,
 			    i + 2, hw_state->pll[i + 2], i + 3, hw_state->pll[i + 3]);
 }
 
-static int intel_c20_compute_hdmi_tmds_pll(struct intel_crtc_state *crtc_state)
+/*
+ * Some ARLs SoCs have the same drm PCI IDs, so need a helper to differentiate based
+ * on the host bridge device ID to get the correct txx_mics value.
+ */
+static bool is_arrowlake_s_by_host_bridge(void)
+{
+	struct pci_dev *pdev = NULL;
+	u16 host_bridge_pci_dev_id;
+
+	while ((pdev = pci_get_class(PCI_CLASS_BRIDGE_HOST << 8, pdev)))
+		host_bridge_pci_dev_id = pdev->device;
+
+	return pdev && IS_ARROWLAKE_S_BY_HOST_BRIDGE_ID(host_bridge_pci_dev_id);
+}
+
+static u16 intel_c20_hdmi_tmds_tx_cgf_1(struct intel_crtc_state *crtc_state)
 {
 	struct intel_display *display = to_intel_display(crtc_state);
+	u16 tx_misc;
+	u16 tx_dcc_cal_dac_ctrl_range = 8;
+	u16 tx_term_ctrl = 2;
+
+	if (DISPLAY_VER(display) >= 20) {
+		tx_misc = 5;
+		tx_term_ctrl = 4;
+	} else if (display->platform.battlemage) {
+		tx_misc = 0;
+	} else if (display->platform.meteorlake_u ||
+		   is_arrowlake_s_by_host_bridge()) {
+		tx_misc = 3;
+	} else {
+		tx_misc = 7;
+	}
+
+	return (C20_PHY_TX_MISC(tx_misc) |
+		C20_PHY_TX_DCC_CAL_RANGE(tx_dcc_cal_dac_ctrl_range) |
+		C20_PHY_TX_DCC_BYPASS | C20_PHY_TX_TERM_CTL(tx_term_ctrl));
+}
+
+static int intel_c20_compute_hdmi_tmds_pll(struct intel_crtc_state *crtc_state)
+{
 	struct intel_c20pll_state *pll_state = &crtc_state->dpll_hw_state.cx0pll.c20;
 	u64 datarate;
 	u64 mpll_tx_clk_div;
@@ -2185,7 +2223,6 @@ static int intel_c20_compute_hdmi_tmds_pll(struct intel_crtc_state *crtc_state)
 	u64 mpll_multiplier;
 	u64 mpll_fracn_quot;
 	u64 mpll_fracn_rem;
-	u16 tx_misc;
 	u8  mpllb_ana_freq_vco;
 	u8  mpll_div_multiplier;
 
@@ -2205,11 +2242,6 @@ static int intel_c20_compute_hdmi_tmds_pll(struct intel_crtc_state *crtc_state)
 	mpll_div_multiplier = min_t(u8, div64_u64((vco_freq * 16 + (datarate >> 1)),
 						  datarate), 255);
 
-	if (DISPLAY_VER(display) >= 20)
-		tx_misc = 0x5;
-	else
-		tx_misc = 0x0;
-
 	if (vco_freq <= DATARATE_3000000000)
 		mpllb_ana_freq_vco = MPLLB_ANA_FREQ_VCO_3;
 	else if (vco_freq <= DATARATE_3500000000)
@@ -2221,7 +2253,7 @@ static int intel_c20_compute_hdmi_tmds_pll(struct intel_crtc_state *crtc_state)
 
 	pll_state->clock	= crtc_state->port_clock;
 	pll_state->tx[0]	= 0xbe88;
-	pll_state->tx[1]	= 0x9800 | C20_PHY_TX_MISC(tx_misc);
+	pll_state->tx[1]	= intel_c20_hdmi_tmds_tx_cgf_1(crtc_state);
 	pll_state->tx[2]	= 0x0000;
 	pll_state->cmn[0]	= 0x0500;
 	pll_state->cmn[1]	= 0x0005;
diff --git a/drivers/gpu/drm/i915/display/intel_cx0_phy_regs.h b/drivers/gpu/drm/i915/display/intel_cx0_phy_regs.h
index 4dc6e179a774..a47fd1aef9f0 100644
--- a/drivers/gpu/drm/i915/display/intel_cx0_phy_regs.h
+++ b/drivers/gpu/drm/i915/display/intel_cx0_phy_regs.h
@@ -294,6 +294,12 @@
 #define   C20_PHY_TX_RATE		REG_GENMASK(2, 0)
 #define   C20_PHY_TX_MISC_MASK		REG_GENMASK16(7, 0)
 #define   C20_PHY_TX_MISC(val)		REG_FIELD_PREP16(C20_PHY_TX_MISC_MASK, (val))
+#define   C20_PHY_TX_DCC_CAL_RANGE_MASK	REG_GENMASK16(11, 8)
+#define   C20_PHY_TX_DCC_CAL_RANGE(val) \
+		REG_FIELD_PREP16(C20_PHY_TX_DCC_CAL_RANGE_MASK, (val))
+#define   C20_PHY_TX_DCC_BYPASS	REG_BIT(12)
+#define   C20_PHY_TX_TERM_CTL_MASK	REG_GENMASK16(15, 13)
+#define   C20_PHY_TX_TERM_CTL(val)	REG_FIELD_PREP16(C20_PHY_TX_TERM_CTL_MASK, (val))
 
 #define PHY_C20_A_CMN_CNTX_CFG(i915, idx) \
 		((_IS_XE2HPD_C20(i915) ? _XE2HPD_C20_A_CMN_CNTX_CFG : _MTL_C20_A_CMN_CNTX_CFG) - (idx))
diff --git a/drivers/gpu/drm/i915/display/intel_display_device.h b/drivers/gpu/drm/i915/display/intel_display_device.h
index 5853472bb9c2..a7b5ce69cf17 100644
--- a/drivers/gpu/drm/i915/display/intel_display_device.h
+++ b/drivers/gpu/drm/i915/display/intel_display_device.h
@@ -234,6 +234,17 @@ struct intel_display_platforms {
 	(drm_WARN_ON(__to_intel_display(__display)->drm, INTEL_DISPLAY_STEP(__display) == STEP_NONE), \
 	 INTEL_DISPLAY_STEP(__display) >= (since) && INTEL_DISPLAY_STEP(__display) < (until))
 
+#define ARLS_HOST_BRIDGE_PCI_ID1 0x7D1C
+#define ARLS_HOST_BRIDGE_PCI_ID2 0x7D2D
+#define ARLS_HOST_BRIDGE_PCI_ID3 0x7D2E
+#define ARLS_HOST_BRIDGE_PCI_ID4 0x7D2F
+
+#define IS_ARROWLAKE_S_BY_HOST_BRIDGE_ID(id)  \
+	(((id) == ARLS_HOST_BRIDGE_PCI_ID1) || \
+	 ((id) == ARLS_HOST_BRIDGE_PCI_ID2) || \
+	 ((id) == ARLS_HOST_BRIDGE_PCI_ID3) || \
+	 ((id) == ARLS_HOST_BRIDGE_PCI_ID4))
+
 struct intel_display_runtime_info {
 	struct intel_display_ip_ver {
 		u16 ver;