diff options
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_ddi.c | 8 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/i915_reg.h | 1 |
2 files changed, 9 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c index b0ea08136118..eccbdd42d223 100644 --- a/drivers/gpu/drm/i915/display/intel_ddi.c +++ b/drivers/gpu/drm/i915/display/intel_ddi.c @@ -1459,6 +1459,14 @@ tgl_dkl_phy_ddi_vswing_sequence(struct intel_encoder *encoder, val = intel_de_read(dev_priv, DKL_TX_DPCNTL2(tc_port)); val &= ~DKL_TX_DP20BITMODE; intel_de_write(dev_priv, DKL_TX_DPCNTL2(tc_port), val); + + if ((intel_crtc_has_dp_encoder(crtc_state) && + crtc_state->port_clock == 162000) || + (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_HDMI) && + crtc_state->port_clock == 594000)) + val |= DKL_TX_LOADGEN_SHARING_PMD_DISABLE; + else + val &= ~DKL_TX_LOADGEN_SHARING_PMD_DISABLE; } } diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index c01de83d347f..1ec0f0ac8e39 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -10825,6 +10825,7 @@ enum skl_power_gate { _DKL_TX_DPCNTL1) #define _DKL_TX_DPCNTL2 0x2C8 +#define DKL_TX_LOADGEN_SHARING_PMD_DISABLE REG_BIT(12) #define DKL_TX_DP20BITMODE (1 << 2) #define DKL_TX_DPCNTL2(tc_port) _MMIO(_PORT(tc_port, \ _DKL_PHY1_BASE, \ |