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rodrigovivirodrigovivi
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drm/i915/cnl: Add DDI Buffer translation tables for Cannonlake.
These tables are used on voltage wswing sequence initialization on Cannonlake. It is a complete new format now in use by the voltage swing team, not following any other standard in use by any other platform. Also the registers are different as well. So let's redefine the translation table for Cannonlake. The table is huge. So we minimized with the fields that are different or might be different anytime soon. The common values will be hardcoded on the voltage swing sequence. v2: Merge the lower and the upper bits to match the spec table and make review easier. This was possible with the good idea for Manasi with a better way to handle it on the bit macro definition presented on previous patch. Credits-to: Manasi Cc: Manasi Navare <[email protected]> Signed-off-by: Rodrigo Vivi <[email protected]> Reviewed-by: Manasi Navare <[email protected]> Link: http://patchwork.freedesktop.org/patch/msgid/[email protected]
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‎drivers/gpu/drm/i915/intel_ddi.c‎

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@@ -353,6 +353,146 @@ static const struct bxt_ddi_buf_trans bxt_ddi_translations_hdmi[] = {
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{ 154, 0x9A, 1, 128, true }, /* 9: 1200 0 */
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};
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struct cnl_ddi_buf_trans {
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u32 dw2_swing_sel;
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u32 dw7_n_scalar;
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u32 dw4_cursor_coeff;
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u32 dw4_post_cursor_2;
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u32 dw4_post_cursor_1;
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};
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/* Voltage Swing Programming for VccIO 0.85V for DP */
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static const struct cnl_ddi_buf_trans cnl_ddi_translations_dp_0_85V[] = {
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/* NT mV Trans mV db */
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{ 0xA, 0x5D, 0x3F, 0x00, 0x00 }, /* 350 350 0.0 */
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{ 0xA, 0x6A, 0x38, 0x00, 0x07 }, /* 350 500 3.1 */
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{ 0xB, 0x7A, 0x32, 0x00, 0x0D }, /* 350 700 6.0 */
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{ 0x6, 0x7C, 0x2D, 0x00, 0x12 }, /* 350 900 8.2 */
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{ 0xA, 0x69, 0x3F, 0x00, 0x00 }, /* 500 500 0.0 */
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{ 0xB, 0x7A, 0x36, 0x00, 0x09 }, /* 500 700 2.9 */
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{ 0x6, 0x7C, 0x30, 0x00, 0x0F }, /* 500 900 5.1 */
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{ 0xB, 0x7D, 0x3C, 0x00, 0x03 }, /* 650 725 0.9 */
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{ 0x6, 0x7C, 0x34, 0x00, 0x0B }, /* 600 900 3.5 */
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{ 0x6, 0x7B, 0x3F, 0x00, 0x00 }, /* 900 900 0.0 */
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};
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/* Voltage Swing Programming for VccIO 0.85V for HDMI */
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static const struct cnl_ddi_buf_trans cnl_ddi_translations_hdmi_0_85V[] = {
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/* NT mV Trans mV db */
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{ 0xA, 0x60, 0x3F, 0x00, 0x00 }, /* 450 450 0.0 */
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{ 0xB, 0x73, 0x36, 0x00, 0x09 }, /* 450 650 3.2 */
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{ 0x6, 0x7F, 0x31, 0x00, 0x0E }, /* 450 850 5.5 */
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{ 0xB, 0x73, 0x3F, 0x00, 0x00 }, /* 650 650 0.0 */
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{ 0x6, 0x7F, 0x37, 0x00, 0x08 }, /* 650 850 2.3 */
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{ 0x6, 0x7F, 0x3F, 0x00, 0x00 }, /* 850 850 0.0 */
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{ 0x6, 0x7F, 0x35, 0x00, 0x0A }, /* 600 850 3.0 */
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};
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/* Voltage Swing Programming for VccIO 0.85V for eDP */
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static const struct cnl_ddi_buf_trans cnl_ddi_translations_edp_0_85V[] = {
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/* NT mV Trans mV db */
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{ 0xA, 0x66, 0x3A, 0x00, 0x05 }, /* 384 500 2.3 */
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{ 0x0, 0x7F, 0x38, 0x00, 0x07 }, /* 153 200 2.3 */
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{ 0x8, 0x7F, 0x38, 0x00, 0x07 }, /* 192 250 2.3 */
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{ 0x1, 0x7F, 0x38, 0x00, 0x07 }, /* 230 300 2.3 */
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{ 0x9, 0x7F, 0x38, 0x00, 0x07 }, /* 269 350 2.3 */
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{ 0xA, 0x66, 0x3C, 0x00, 0x03 }, /* 446 500 1.0 */
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{ 0xB, 0x70, 0x3C, 0x00, 0x03 }, /* 460 600 2.3 */
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{ 0xC, 0x75, 0x3C, 0x00, 0x03 }, /* 537 700 2.3 */
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{ 0x2, 0x7F, 0x3F, 0x00, 0x00 }, /* 400 400 0.0 */
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};
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/* Voltage Swing Programming for VccIO 0.95V for DP */
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static const struct cnl_ddi_buf_trans cnl_ddi_translations_dp_0_95V[] = {
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/* NT mV Trans mV db */
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{ 0xA, 0x5D, 0x3F, 0x00, 0x00 }, /* 350 350 0.0 */
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{ 0xA, 0x6A, 0x38, 0x00, 0x07 }, /* 350 500 3.1 */
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{ 0xB, 0x7A, 0x32, 0x00, 0x0D }, /* 350 700 6.0 */
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{ 0x6, 0x7C, 0x2D, 0x00, 0x12 }, /* 350 900 8.2 */
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{ 0xA, 0x69, 0x3F, 0x00, 0x00 }, /* 500 500 0.0 */
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{ 0xB, 0x7A, 0x36, 0x00, 0x09 }, /* 500 700 2.9 */
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{ 0x6, 0x7C, 0x30, 0x00, 0x0F }, /* 500 900 5.1 */
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{ 0xB, 0x7D, 0x3C, 0x00, 0x03 }, /* 650 725 0.9 */
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{ 0x6, 0x7C, 0x34, 0x00, 0x0B }, /* 600 900 3.5 */
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{ 0x6, 0x7B, 0x3F, 0x00, 0x00 }, /* 900 900 0.0 */
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};
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/* Voltage Swing Programming for VccIO 0.95V for HDMI */
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static const struct cnl_ddi_buf_trans cnl_ddi_translations_hdmi_0_95V[] = {
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/* NT mV Trans mV db */
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{ 0xA, 0x5C, 0x3F, 0x00, 0x00 }, /* 400 400 0.0 */
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{ 0xB, 0x69, 0x37, 0x00, 0x08 }, /* 400 600 3.5 */
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{ 0x5, 0x76, 0x31, 0x00, 0x0E }, /* 400 800 6.0 */
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{ 0xA, 0x5E, 0x3F, 0x00, 0x00 }, /* 450 450 0.0 */
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{ 0xB, 0x69, 0x3F, 0x00, 0x00 }, /* 600 600 0.0 */
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{ 0xB, 0x79, 0x35, 0x00, 0x0A }, /* 600 850 3.0 */
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{ 0x6, 0x7D, 0x32, 0x00, 0x0D }, /* 600 1000 4.4 */
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{ 0x5, 0x76, 0x3F, 0x00, 0x00 }, /* 800 800 0.0 */
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{ 0x6, 0x7D, 0x39, 0x00, 0x06 }, /* 800 1000 1.9 */
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{ 0x6, 0x7F, 0x39, 0x00, 0x06 }, /* 850 1050 1.8 */
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{ 0x6, 0x7F, 0x3F, 0x00, 0x00 }, /* 1050 1050 0.0 */
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};
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/* Voltage Swing Programming for VccIO 0.95V for eDP */
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static const struct cnl_ddi_buf_trans cnl_ddi_translations_edp_0_95V[] = {
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/* NT mV Trans mV db */
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{ 0xA, 0x61, 0x3A, 0x00, 0x05 }, /* 384 500 2.3 */
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{ 0x0, 0x7F, 0x38, 0x00, 0x07 }, /* 153 200 2.3 */
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{ 0x8, 0x7F, 0x38, 0x00, 0x07 }, /* 192 250 2.3 */
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{ 0x1, 0x7F, 0x38, 0x00, 0x07 }, /* 230 300 2.3 */
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{ 0x9, 0x7F, 0x38, 0x00, 0x07 }, /* 269 350 2.3 */
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{ 0xA, 0x61, 0x3C, 0x00, 0x03 }, /* 446 500 1.0 */
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{ 0xB, 0x68, 0x39, 0x00, 0x06 }, /* 460 600 2.3 */
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{ 0xC, 0x6E, 0x39, 0x00, 0x06 }, /* 537 700 2.3 */
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{ 0x4, 0x7F, 0x3A, 0x00, 0x05 }, /* 460 600 2.3 */
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{ 0x2, 0x7F, 0x3F, 0x00, 0x00 }, /* 400 400 0.0 */
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};
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/* Voltage Swing Programming for VccIO 1.05V for DP */
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static const struct cnl_ddi_buf_trans cnl_ddi_translations_dp_1_05V[] = {
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/* NT mV Trans mV db */
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{ 0xA, 0x58, 0x3F, 0x00, 0x00 }, /* 400 400 0.0 */
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{ 0xB, 0x64, 0x37, 0x00, 0x08 }, /* 400 600 3.5 */
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{ 0x5, 0x70, 0x31, 0x00, 0x0E }, /* 400 800 6.0 */
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{ 0x6, 0x7F, 0x2C, 0x00, 0x13 }, /* 400 1050 8.4 */
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{ 0xB, 0x64, 0x3F, 0x00, 0x00 }, /* 600 600 0.0 */
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{ 0x5, 0x73, 0x35, 0x00, 0x0A }, /* 600 850 3.0 */
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{ 0x6, 0x7F, 0x30, 0x00, 0x0F }, /* 550 1050 5.6 */
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{ 0x5, 0x76, 0x3E, 0x00, 0x01 }, /* 850 900 0.5 */
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{ 0x6, 0x7F, 0x36, 0x00, 0x09 }, /* 750 1050 2.9 */
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{ 0x6, 0x7F, 0x3F, 0x00, 0x00 }, /* 1050 1050 0.0 */
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};
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/* Voltage Swing Programming for VccIO 1.05V for HDMI */
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static const struct cnl_ddi_buf_trans cnl_ddi_translations_hdmi_1_05V[] = {
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/* NT mV Trans mV db */
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{ 0xA, 0x58, 0x3F, 0x00, 0x00 }, /* 400 400 0.0 */
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{ 0xB, 0x64, 0x37, 0x00, 0x08 }, /* 400 600 3.5 */
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{ 0x5, 0x70, 0x31, 0x00, 0x0E }, /* 400 800 6.0 */
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{ 0xA, 0x5B, 0x3F, 0x00, 0x00 }, /* 450 450 0.0 */
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{ 0xB, 0x64, 0x3F, 0x00, 0x00 }, /* 600 600 0.0 */
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{ 0x5, 0x73, 0x35, 0x00, 0x0A }, /* 600 850 3.0 */
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{ 0x6, 0x7C, 0x32, 0x00, 0x0D }, /* 600 1000 4.4 */
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{ 0x5, 0x70, 0x3F, 0x00, 0x00 }, /* 800 800 0.0 */
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{ 0x6, 0x7C, 0x39, 0x00, 0x06 }, /* 800 1000 1.9 */
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{ 0x6, 0x7F, 0x39, 0x00, 0x06 }, /* 850 1050 1.8 */
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{ 0x6, 0x7F, 0x3F, 0x00, 0x00 }, /* 1050 1050 0.0 */
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};
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/* Voltage Swing Programming for VccIO 1.05V for eDP */
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static const struct cnl_ddi_buf_trans cnl_ddi_translations_edp_1_05V[] = {
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/* NT mV Trans mV db */
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{ 0xA, 0x5E, 0x3A, 0x00, 0x05 }, /* 384 500 2.3 */
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{ 0x0, 0x7F, 0x38, 0x00, 0x07 }, /* 153 200 2.3 */
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{ 0x8, 0x7F, 0x38, 0x00, 0x07 }, /* 192 250 2.3 */
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{ 0x1, 0x7F, 0x38, 0x00, 0x07 }, /* 230 300 2.3 */
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{ 0x9, 0x7F, 0x38, 0x00, 0x07 }, /* 269 350 2.3 */
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{ 0xA, 0x5E, 0x3C, 0x00, 0x03 }, /* 446 500 1.0 */
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{ 0xB, 0x64, 0x39, 0x00, 0x06 }, /* 460 600 2.3 */
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{ 0xE, 0x6A, 0x39, 0x00, 0x06 }, /* 537 700 2.3 */
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{ 0x2, 0x7F, 0x3F, 0x00, 0x00 }, /* 400 400 0.0 */
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};
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enum port intel_ddi_get_encoder_port(struct intel_encoder *encoder)
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{
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switch (encoder->type) {

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