From: Manasi Navare <manasi.d.navare@xxxxxxxxx>
This table is used for voltage swing programming sequence during DDI
Buffer initialization for MG PHY DDI Buffers on Icelake.
v2 (from Paulo):
* Fix white space issues.
Cc: Rodrigo Vivi <rodrigo.vivi@xxxxxxxxx>
Cc: Jani Nikula <jani.nikula@xxxxxxxxxxxxxxx>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@xxxxxxxxx>
Signed-off-by: Manasi Navare <manasi.d.navare@xxxxxxxxx>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@xxxxxxxxx>
---
drivers/gpu/drm/i915/intel_ddi.c | 20 ++++++++++++++++++++
1 file changed, 20 insertions(+)
diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c
index c38873cb98ca..98471b5c5f70 100644
--- a/drivers/gpu/drm/i915/intel_ddi.c
+++ b/drivers/gpu/drm/i915/intel_ddi.c
@@ -591,6 +591,26 @@ static const struct icl_combo_phy_ddi_buf_trans icl_combo_phy_ddi_translations_e
{ 0x0, 0x00, 0x00 }, /* 350 0.0 */
};
+struct icl_mg_phy_ddi_buf_trans {
+ u32 cri_txdeemph_override_5_0;
+ u32 cri_txdeemph_override_11_6;
+ u32 cri_txdeemph_override_17_12;
+};
+
+static const struct icl_mg_phy_ddi_buf_trans icl_mg_phy_ddi_translations[] = {
+ /* Voltage swing pre-emphasis */
+ { 0x0, 0x1B, 0x00 }, /* 0 0 */
+ { 0x0, 0x23, 0x08 }, /* 0 1 */
+ { 0x0, 0x2D, 0x12 }, /* 0 2 */
+ { 0x0, 0x00, 0x00 }, /* 0 3 */
+ { 0x0, 0x23, 0x00 }, /* 1 0 */
+ { 0x0, 0x2B, 0x09 }, /* 1 1 */
+ { 0x0, 0x2E, 0x11 }, /* 1 2 */
+ { 0x0, 0x2F, 0x00 }, /* 2 0 */
+ { 0x0, 0x33, 0x0C }, /* 2 1 */
+ { 0x0, 0x00, 0x00 }, /* 3 0 */
+};
+
static const struct ddi_buf_trans *
bdw_get_buf_trans_edp(struct drm_i915_private *dev_priv, int *n_entries)
{
--
2.14.3
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