diff options
| author | José Roberto de Souza <jose.souza@intel.com> | 2021-05-14 18:37:10 +0300 |
|---|---|---|
| committer | Matt Roper <matthew.d.roper@intel.com> | 2021-05-15 05:48:38 +0300 |
| commit | 2680bea758f270c11f8a5b78152930b92596f2ef (patch) | |
| tree | eeeec716d046f7c08e99139c897cf613403e383a /drivers/gpu/drm/i915 | |
| parent | a8a56da71a13358528446f4903f6c939dd1d6a1d (diff) | |
| download | linux-2680bea758f270c11f8a5b78152930b92596f2ef.tar.xz | |
drm/i915/display/adl_p: Implement Wa_22011320316
Implementation details are in the HSD 22011320316, requiring CD clock
to be at least 307MHz to make DC states to work.
Cc: Matt Roper <matthew.d.roper@intel.com>
Cc: Anusha Srivatsa <anusha.srivatsa@intel.com>
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Signed-off-by: Clinton Taylor <Clinton.A.Taylor@intel.com>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Mika Kahola <mika.kahola@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210514153711.2359617-19-matthew.d.roper@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_cdclk.c | 21 |
1 files changed, 20 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_cdclk.c b/drivers/gpu/drm/i915/display/intel_cdclk.c index c9f1484f3811..4656a6edc3be 100644 --- a/drivers/gpu/drm/i915/display/intel_cdclk.c +++ b/drivers/gpu/drm/i915/display/intel_cdclk.c @@ -1253,6 +1253,21 @@ static const struct intel_cdclk_vals rkl_cdclk_table[] = { {} }; +static const struct intel_cdclk_vals adlp_a_step_cdclk_table[] = { + { .refclk = 19200, .cdclk = 307200, .divider = 2, .ratio = 32 }, + { .refclk = 19200, .cdclk = 556800, .divider = 2, .ratio = 58 }, + { .refclk = 19200, .cdclk = 652800, .divider = 2, .ratio = 68 }, + + { .refclk = 24000, .cdclk = 312000, .divider = 2, .ratio = 26 }, + { .refclk = 24000, .cdclk = 552000, .divider = 2, .ratio = 46 }, + { .refclk = 24400, .cdclk = 648000, .divider = 2, .ratio = 54 }, + + { .refclk = 38400, .cdclk = 307200, .divider = 2, .ratio = 16 }, + { .refclk = 38400, .cdclk = 556800, .divider = 2, .ratio = 29 }, + { .refclk = 38400, .cdclk = 652800, .divider = 2, .ratio = 34 }, + {} +}; + static const struct intel_cdclk_vals adlp_cdclk_table[] = { { .refclk = 19200, .cdclk = 172800, .divider = 3, .ratio = 27 }, { .refclk = 19200, .cdclk = 192000, .divider = 2, .ratio = 20 }, @@ -2801,7 +2816,11 @@ void intel_init_cdclk_hooks(struct drm_i915_private *dev_priv) dev_priv->display.bw_calc_min_cdclk = skl_bw_calc_min_cdclk; dev_priv->display.modeset_calc_cdclk = bxt_modeset_calc_cdclk; dev_priv->display.calc_voltage_level = tgl_calc_voltage_level; - dev_priv->cdclk.table = adlp_cdclk_table; + /* Wa_22011320316:adlp[a0] */ + if (IS_ADLP_DISPLAY_STEP(dev_priv, STEP_A0, STEP_A0)) + dev_priv->cdclk.table = adlp_a_step_cdclk_table; + else + dev_priv->cdclk.table = adlp_cdclk_table; } else if (IS_ROCKETLAKE(dev_priv)) { dev_priv->display.set_cdclk = bxt_set_cdclk; dev_priv->display.bw_calc_min_cdclk = skl_bw_calc_min_cdclk; |