The bspec was updated with a minor change to the 'DCC mode select' setting to be programmed during combo PHY initialization. Bspec: 49291 Signed-off-by: Matt Roper <matthew.d.roper@xxxxxxxxx> --- drivers/gpu/drm/i915/display/intel_combo_phy.c | 9 +++------ drivers/gpu/drm/i915/display/intel_combo_phy_regs.h | 4 ++-- 2 files changed, 5 insertions(+), 8 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_combo_phy.c b/drivers/gpu/drm/i915/display/intel_combo_phy.c index 27e98eabb006..0608ae95b6f5 100644 --- a/drivers/gpu/drm/i915/display/intel_combo_phy.c +++ b/drivers/gpu/drm/i915/display/intel_combo_phy.c @@ -233,8 +233,7 @@ static bool icl_combo_phy_verify_state(struct drm_i915_private *dev_priv, ICL_PORT_TX_DW8_ODCC_CLK_DIV_SEL_DIV2); ret &= check_phy_reg(dev_priv, phy, ICL_PORT_PCS_DW1_LN(0, phy), - DCC_MODE_SELECT_MASK, - DCC_MODE_SELECT_CONTINUOSLY); + DCC_MODE_SELECT_MASK, RUN_DCC_ONCE); } ret &= icl_verify_procmon_ref_values(dev_priv, phy); @@ -352,10 +351,8 @@ static void icl_combo_phys_init(struct drm_i915_private *dev_priv) val |= ICL_PORT_TX_DW8_ODCC_CLK_DIV_SEL_DIV2; intel_de_write(dev_priv, ICL_PORT_TX_DW8_GRP(phy), val); - val = intel_de_read(dev_priv, ICL_PORT_PCS_DW1_LN(0, phy)); - val &= ~DCC_MODE_SELECT_MASK; - val |= DCC_MODE_SELECT_CONTINUOSLY; - intel_de_write(dev_priv, ICL_PORT_PCS_DW1_GRP(phy), val); + intel_de_rmw(dev_priv, ICL_PORT_PCS_DW1_LN(0, phy), + DCC_MODE_SELECT_MASK, RUN_DCC_ONCE); } icl_set_procmon_ref_values(dev_priv, phy); diff --git a/drivers/gpu/drm/i915/display/intel_combo_phy_regs.h b/drivers/gpu/drm/i915/display/intel_combo_phy_regs.h index 2ed65193ca19..b0983edccf3f 100644 --- a/drivers/gpu/drm/i915/display/intel_combo_phy_regs.h +++ b/drivers/gpu/drm/i915/display/intel_combo_phy_regs.h @@ -90,8 +90,8 @@ #define ICL_PORT_PCS_DW1_AUX(phy) _MMIO(_ICL_PORT_PCS_DW_AUX(1, phy)) #define ICL_PORT_PCS_DW1_GRP(phy) _MMIO(_ICL_PORT_PCS_DW_GRP(1, phy)) #define ICL_PORT_PCS_DW1_LN(ln, phy) _MMIO(_ICL_PORT_PCS_DW_LN(1, ln, phy)) -#define DCC_MODE_SELECT_MASK (0x3 << 20) -#define DCC_MODE_SELECT_CONTINUOSLY (0x3 << 20) +#define DCC_MODE_SELECT_MASK REG_GENMASK(21, 20) +#define RUN_DCC_ONCE REG_FIELD_PREP(DCC_MODE_SELECT_MASK, 0) #define COMMON_KEEPER_EN (1 << 26) #define LATENCY_OPTIM_MASK (0x3 << 2) #define LATENCY_OPTIM_VAL(x) ((x) << 2) -- 2.39.1
