The address of CTL and DATA registers for DP AUX were changed in Xe2_LPD:
now they are all in a single range, with CH_A and CH_B coming right after
the USBC instances. Like was done when moving registers to PICA, use
a helper macro to remap the ch passed to an index that can be used to
calculate the right offset.
Signed-off-by: Lucas De Marchi <lucas.demarchi@xxxxxxxxx>
Reviewed-by: Matt Roper <matthew.d.roper@xxxxxxxxx>
---
.../i915/display/intel_display_power_well.c | 6 +++---
drivers/gpu/drm/i915/display/intel_dp_aux.c | 8 ++++----
.../gpu/drm/i915/display/intel_dp_aux_regs.h | 19 +++++++++++++++++--
3 files changed, 24 insertions(+), 9 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_display_power_well.c b/drivers/gpu/drm/i915/display/intel_display_power_well.c
index 820b7d41a0a8..ca0714eba17a 100644
--- a/drivers/gpu/drm/i915/display/intel_display_power_well.c
+++ b/drivers/gpu/drm/i915/display/intel_display_power_well.c
@@ -1800,7 +1800,7 @@ static void xelpdp_aux_power_well_enable(struct drm_i915_private *dev_priv,
icl_tc_port_assert_ref_held(dev_priv, power_well,
aux_ch_to_digital_port(dev_priv, aux_ch));
- intel_de_rmw(dev_priv, XELPDP_DP_AUX_CH_CTL(aux_ch),
+ intel_de_rmw(dev_priv, XELPDP_DP_AUX_CH_CTL(dev_priv, aux_ch),
XELPDP_DP_AUX_CH_CTL_POWER_REQUEST,
XELPDP_DP_AUX_CH_CTL_POWER_REQUEST);
@@ -1818,7 +1818,7 @@ static void xelpdp_aux_power_well_disable(struct drm_i915_private *dev_priv,
{
enum aux_ch aux_ch = i915_power_well_instance(power_well)->xelpdp.aux_ch;
- intel_de_rmw(dev_priv, XELPDP_DP_AUX_CH_CTL(aux_ch),
+ intel_de_rmw(dev_priv, XELPDP_DP_AUX_CH_CTL(dev_priv, aux_ch),
XELPDP_DP_AUX_CH_CTL_POWER_REQUEST,
0);
usleep_range(10, 30);
@@ -1829,7 +1829,7 @@ static bool xelpdp_aux_power_well_enabled(struct drm_i915_private *dev_priv,
{
enum aux_ch aux_ch = i915_power_well_instance(power_well)->xelpdp.aux_ch;
- return intel_de_read(dev_priv, XELPDP_DP_AUX_CH_CTL(aux_ch)) &
+ return intel_de_read(dev_priv, XELPDP_DP_AUX_CH_CTL(dev_priv, aux_ch)) &
XELPDP_DP_AUX_CH_CTL_POWER_STATUS;
}
diff --git a/drivers/gpu/drm/i915/display/intel_dp_aux.c b/drivers/gpu/drm/i915/display/intel_dp_aux.c
index 2d173bd495a3..b90cad7f567b 100644
--- a/drivers/gpu/drm/i915/display/intel_dp_aux.c
+++ b/drivers/gpu/drm/i915/display/intel_dp_aux.c
@@ -687,10 +687,10 @@ static i915_reg_t xelpdp_aux_ctl_reg(struct intel_dp *intel_dp)
case AUX_CH_USBC2:
case AUX_CH_USBC3:
case AUX_CH_USBC4:
- return XELPDP_DP_AUX_CH_CTL(aux_ch);
+ return XELPDP_DP_AUX_CH_CTL(dev_priv, aux_ch);
default:
MISSING_CASE(aux_ch);
- return XELPDP_DP_AUX_CH_CTL(AUX_CH_A);
+ return XELPDP_DP_AUX_CH_CTL(dev_priv, AUX_CH_A);
}
}
@@ -707,10 +707,10 @@ static i915_reg_t xelpdp_aux_data_reg(struct intel_dp *intel_dp, int index)
case AUX_CH_USBC2:
case AUX_CH_USBC3:
case AUX_CH_USBC4:
- return XELPDP_DP_AUX_CH_DATA(aux_ch, index);
+ return XELPDP_DP_AUX_CH_DATA(dev_priv, aux_ch, index);
default:
MISSING_CASE(aux_ch);
- return XELPDP_DP_AUX_CH_DATA(AUX_CH_A, index);
+ return XELPDP_DP_AUX_CH_DATA(dev_priv, AUX_CH_A, index);
}
}
diff --git a/drivers/gpu/drm/i915/display/intel_dp_aux_regs.h b/drivers/gpu/drm/i915/display/intel_dp_aux_regs.h
index 1e9e018a2a48..9d141e86a4b6 100644
--- a/drivers/gpu/drm/i915/display/intel_dp_aux_regs.h
+++ b/drivers/gpu/drm/i915/display/intel_dp_aux_regs.h
@@ -14,6 +14,13 @@
* registers
*/
+/*
+ * Wrapper macro to convert from aux_ch to the index used in some of the
+ * registers, similarly to __xe2lpd_port_idx().
+ */
+#define __xe2lpd_aux_ch_idx(aux_ch) \
+ (aux_ch >= AUX_CH_USBC1 ? aux_ch : AUX_CH_USBC4 + 1 + aux_ch - AUX_CH_A)
+
/* TODO: Remove implicit dev_priv */
#define _DPA_AUX_CH_CTL (DISPLAY_MMIO_BASE(dev_priv) + 0x64010)
#define _DPB_AUX_CH_CTL (DISPLAY_MMIO_BASE(dev_priv) + 0x64110)
@@ -21,11 +28,15 @@
#define _XELPDP_USBC2_AUX_CH_CTL 0x16f410
#define DP_AUX_CH_CTL(aux_ch) _MMIO_PORT(aux_ch, _DPA_AUX_CH_CTL, \
_DPB_AUX_CH_CTL)
-#define XELPDP_DP_AUX_CH_CTL(aux_ch) \
+#define _XELPDP_DP_AUX_CH_CTL(aux_ch) \
_MMIO(_PICK_EVEN_2RANGES(aux_ch, AUX_CH_USBC1, \
_DPA_AUX_CH_CTL, _DPB_AUX_CH_CTL, \
_XELPDP_USBC1_AUX_CH_CTL, \
_XELPDP_USBC2_AUX_CH_CTL))
+#define XELPDP_DP_AUX_CH_CTL(i915__, aux_ch) \
+ (DISPLAY_VER(i915__) >= 20 ? \
+ _XELPDP_DP_AUX_CH_CTL(__xe2lpd_aux_ch_idx(aux_ch)) : \
+ _XELPDP_DP_AUX_CH_CTL(aux_ch))
#define DP_AUX_CH_CTL_SEND_BUSY REG_BIT(31)
#define DP_AUX_CH_CTL_DONE REG_BIT(30)
#define DP_AUX_CH_CTL_INTERRUPT REG_BIT(29)
@@ -65,10 +76,14 @@
#define _XELPDP_USBC2_AUX_CH_DATA1 0x16f414
#define DP_AUX_CH_DATA(aux_ch, i) _MMIO(_PORT(aux_ch, _DPA_AUX_CH_DATA1, \
_DPB_AUX_CH_DATA1) + (i) * 4) /* 5 registers */
-#define XELPDP_DP_AUX_CH_DATA(aux_ch, i) \
+#define _XELPDP_DP_AUX_CH_DATA(aux_ch, i) \
_MMIO(_PICK_EVEN_2RANGES(aux_ch, AUX_CH_USBC1, \
_DPA_AUX_CH_DATA1, _DPB_AUX_CH_DATA1, \
_XELPDP_USBC1_AUX_CH_DATA1, \
_XELPDP_USBC2_AUX_CH_DATA1) + (i) * 4) /* 5 registers */
+#define XELPDP_DP_AUX_CH_DATA(i915__, aux_ch, i) \
+ (DISPLAY_VER(i915__) >= 20 ? \
+ _XELPDP_DP_AUX_CH_DATA(__xe2lpd_aux_ch_idx(aux_ch), i) : \
+ _XELPDP_DP_AUX_CH_DATA(aux_ch, i))
#endif /* __INTEL_DP_AUX_REGS_H__ */
--
2.40.1
