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| author | Manasi Navare | 2018-03-23 18:24:16 +0100 |
|---|---|---|
| committer | Paulo Zanoni | 2018-03-23 22:58:13 +0100 |
| commit | cd96bea7ba90c45c8d1d315433c78021e56ec8c7 (patch) | |
| tree | 72a7a2bb6b8cb3eacbc992bd082217959f347dc3 /drivers/gpu/drm/i915/intel_ddi.c | |
| parent | drm/i915/icl: Add register defs for voltage swing sequences for MG PHY DDI (diff) | |
| download | kernel-qcow2-linux-cd96bea7ba90c45c8d1d315433c78021e56ec8c7.tar.gz kernel-qcow2-linux-cd96bea7ba90c45c8d1d315433c78021e56ec8c7.tar.xz kernel-qcow2-linux-cd96bea7ba90c45c8d1d315433c78021e56ec8c7.zip | |
drm/i915/icl: Add Voltage swing table for MG PHY DDI Buffer
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@intel.com>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Manasi Navare <manasi.d.navare@intel.com>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180323172419.24911-5-paulo.r.zanoni@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/intel_ddi.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_ddi.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c index 229b9d5250c4..359acbfec4b1 100644 --- a/drivers/gpu/drm/i915/intel_ddi.c +++ b/drivers/gpu/drm/i915/intel_ddi.c @@ -592,6 +592,26 @@ 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) { |