Add debug print for Procmon Ref values, to help get the
voltage configurations of combo PHYs.
v2: Used drm_dbg_kms for logs. (Jani)
Added names for different voltage levels. (Imre)
Suggested-by: Imre Deak <imre.deak@xxxxxxxxx>
Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@xxxxxxxxx>
---
.../gpu/drm/i915/display/intel_combo_phy.c | 36 +++++++++++++------
1 file changed, 26 insertions(+), 10 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_combo_phy.c b/drivers/gpu/drm/i915/display/intel_combo_phy.c
index 4dfe77351b8b..7ccf45578a7f 100644
--- a/drivers/gpu/drm/i915/display/intel_combo_phy.c
+++ b/drivers/gpu/drm/i915/display/intel_combo_phy.c
@@ -25,18 +25,29 @@ enum {
};
static const struct icl_procmon {
+ char name[30];
u32 dw1, dw9, dw10;
} icl_procmon_values[] = {
- [PROCMON_0_85V_DOT_0] =
- { .dw1 = 0x00000000, .dw9 = 0x62AB67BB, .dw10 = 0x51914F96, },
- [PROCMON_0_95V_DOT_0] =
- { .dw1 = 0x00000000, .dw9 = 0x86E172C7, .dw10 = 0x77CA5EAB, },
- [PROCMON_0_95V_DOT_1] =
- { .dw1 = 0x00000000, .dw9 = 0x93F87FE1, .dw10 = 0x8AE871C5, },
- [PROCMON_1_05V_DOT_0] =
- { .dw1 = 0x00000000, .dw9 = 0x98FA82DD, .dw10 = 0x89E46DC1, },
- [PROCMON_1_05V_DOT_1] =
- { .dw1 = 0x00440000, .dw9 = 0x9A00AB25, .dw10 = 0x8AE38FF1, },
+ [PROCMON_0_85V_DOT_0] = {
+ .name = "0.85V dot0 (low-voltage)\0",
+ .dw1 = 0x00000000, .dw9 = 0x62AB67BB, .dw10 = 0x51914F96,
+ },
+ [PROCMON_0_95V_DOT_0] = {
+ .name = "0.95V dot0\0",
+ .dw1 = 0x00000000, .dw9 = 0x86E172C7, .dw10 = 0x77CA5EAB,
+ },
+ [PROCMON_0_95V_DOT_1] = {
+ .name = "0.95V dot1\0",
+ .dw1 = 0x00000000, .dw9 = 0x93F87FE1, .dw10 = 0x8AE871C5,
+ },
+ [PROCMON_1_05V_DOT_0] = {
+ .name = "1.05V dot0\0",
+ .dw1 = 0x00000000, .dw9 = 0x98FA82DD, .dw10 = 0x89E46DC1,
+ },
+ [PROCMON_1_05V_DOT_1] = {
+ .name = "1.05V dot1\0",
+ .dw1 = 0x00440000, .dw9 = 0x9A00AB25, .dw10 = 0x8AE38FF1,
+ },
};
static const struct icl_procmon *
@@ -113,6 +124,11 @@ static bool icl_verify_procmon_ref_values(struct drm_i915_private *dev_priv,
procmon = icl_get_procmon_ref_values(dev_priv, phy);
+ drm_dbg_kms(&dev_priv->drm,
+ "Combo PHY %c %s PROCMON values : 0x%x, 0x%x, 0x%x\n",
+ phy_name(phy), procmon->name, procmon->dw1, procmon->dw9,
+ procmon->dw10);
+
ret = check_phy_reg(dev_priv, phy, ICL_PORT_COMP_DW1(phy),
(0xff << 16) | 0xff, procmon->dw1);
ret &= check_phy_reg(dev_priv, phy, ICL_PORT_COMP_DW9(phy),
--
2.25.1
