diff options
| author | Tejas Upadhyay <tejaskumarx.surendrakumar.upadhyay@intel.com> | 2021-12-03 13:07:20 +0530 |
|---|---|---|
| committer | Lucas De Marchi <lucas.demarchi@intel.com> | 2021-12-03 10:21:36 -0800 |
| commit | af10ec31a81b2f8b9a3b2d1ef05f553cc9495701 (patch) | |
| tree | a936ebed20606b82154a2a53f844101f1ed13031 /drivers/gpu/drm/i915/display/intel_bios.c | |
| parent | b1e4747259f4173354b914fb50e547ebb80fffbe (diff) | |
drm/i915/adl_p: Add ddc pin mapping
From VBT, ddc pin info suggests the following mapping:
VBT DRIVER
DDI TC1->ddc_pin=3 should translate to PORT_TC1->0x9
DDI TC2->ddc_pin=4 should translate to PORT_TC2->0xa
DDI TC3->ddc_pin=5 should translate to PORT_TC3->0xb
DDI TC4->ddc_pin=6 should translate to PORT_TC4->0xc
Adding pin map to facilitate this translation as we cannot use existing
icl ddc pin map due to conflict with DDI C and DDI TC1 info.
Bspec:20124
v2:
- Changed Author to Tejas Upadhyay
Cc: Clinton Taylor <Clinton.A.Taylor@intel.com>
Cc: Matt Atwood <matthew.s.atwood@intel.com>
Cc: Matt Roper <matthew.d.roper@intel.com>
Acked-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Lee Shawn C <shawn.c.lee@intel.com>
Signed-off-by: Tejas Upadhyay <tejaskumarx.surendrakumar.upadhyay@intel.com>
Signed-off-by: Raviteja Goud Talla <ravitejax.goud.talla@intel.com>
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211203073720.3823371-1-ravitejax.goud.talla@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_bios.c')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_bios.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_bios.c b/drivers/gpu/drm/i915/display/intel_bios.c index 2b1423a43437..9d989c9f5da4 100644 --- a/drivers/gpu/drm/i915/display/intel_bios.c +++ b/drivers/gpu/drm/i915/display/intel_bios.c @@ -1555,12 +1555,24 @@ static const u8 gen9bc_tgp_ddc_pin_map[] = { [DDC_BUS_DDI_D] = GMBUS_PIN_10_TC2_ICP, }; +static const u8 adlp_ddc_pin_map[] = { + [ICL_DDC_BUS_DDI_A] = GMBUS_PIN_1_BXT, + [ICL_DDC_BUS_DDI_B] = GMBUS_PIN_2_BXT, + [ADLP_DDC_BUS_PORT_TC1] = GMBUS_PIN_9_TC1_ICP, + [ADLP_DDC_BUS_PORT_TC2] = GMBUS_PIN_10_TC2_ICP, + [ADLP_DDC_BUS_PORT_TC3] = GMBUS_PIN_11_TC3_ICP, + [ADLP_DDC_BUS_PORT_TC4] = GMBUS_PIN_12_TC4_ICP, +}; + static u8 map_ddc_pin(struct drm_i915_private *i915, u8 vbt_pin) { const u8 *ddc_pin_map; int n_entries; - if (IS_ALDERLAKE_S(i915)) { + if (IS_ALDERLAKE_P(i915)) { + ddc_pin_map = adlp_ddc_pin_map; + n_entries = ARRAY_SIZE(adlp_ddc_pin_map); + } else if (IS_ALDERLAKE_S(i915)) { ddc_pin_map = adls_ddc_pin_map; n_entries = ARRAY_SIZE(adls_ddc_pin_map); } else if (INTEL_PCH_TYPE(i915) >= PCH_DG1) { |