A new step of 480MHz has been added on SKUs that have a RPL-U device id. Add a new table which include this new CDCLK step.
BSpec: 55409 Signed-off-by: Chaitanya Kumar Borah <[email protected]> --- drivers/gpu/drm/i915/display/intel_cdclk.c | 39 ++++++++++++++++++++++ 1 file changed, 39 insertions(+) diff --git a/drivers/gpu/drm/i915/display/intel_cdclk.c b/drivers/gpu/drm/i915/display/intel_cdclk.c index 0c107a38f9d0..9bfeb1abba47 100644 --- a/drivers/gpu/drm/i915/display/intel_cdclk.c +++ b/drivers/gpu/drm/i915/display/intel_cdclk.c @@ -180,6 +180,18 @@ static void i85x_get_cdclk(struct drm_i915_private *dev_priv, } } +static bool is_rplu(struct drm_i915_private *dev_priv) +{ + switch (INTEL_DEVID(dev_priv)) { + case 0xA7A1: + case 0xA721: + case 0xA7A9: + return true; + default: + return false; + } +} + static void i915gm_get_cdclk(struct drm_i915_private *dev_priv, struct intel_cdclk_config *cdclk_config) { @@ -1329,6 +1341,27 @@ static const struct intel_cdclk_vals adlp_cdclk_table[] = { {} }; +static const struct intel_cdclk_vals rplu_cdclk_table[] = { + { .refclk = 19200, .cdclk = 172800, .divider = 3, .ratio = 27 }, + { .refclk = 19200, .cdclk = 192000, .divider = 2, .ratio = 20 }, + { .refclk = 19200, .cdclk = 480000, .divider = 2, .ratio = 50 }, + { .refclk = 19200, .cdclk = 556800, .divider = 2, .ratio = 58 }, + { .refclk = 19200, .cdclk = 652800, .divider = 2, .ratio = 68 }, + + { .refclk = 24000, .cdclk = 176000, .divider = 3, .ratio = 22 }, + { .refclk = 24000, .cdclk = 192000, .divider = 2, .ratio = 16 }, + { .refclk = 24000, .cdclk = 480000, .divider = 2, .ratio = 40 }, + { .refclk = 24000, .cdclk = 552000, .divider = 2, .ratio = 46 }, + { .refclk = 24400, .cdclk = 648000, .divider = 2, .ratio = 54 }, + + { .refclk = 38400, .cdclk = 179200, .divider = 3, .ratio = 14 }, + { .refclk = 38400, .cdclk = 192000, .divider = 2, .ratio = 10 }, + { .refclk = 38400, .cdclk = 480000, .divider = 2, .ratio = 25 }, + { .refclk = 38400, .cdclk = 556800, .divider = 2, .ratio = 29 }, + { .refclk = 38400, .cdclk = 652800, .divider = 2, .ratio = 34 }, + {} +}; + static const struct intel_cdclk_vals dg2_cdclk_table[] = { { .refclk = 38400, .cdclk = 163200, .divider = 2, .ratio = 34, .waveform = 0x8888 }, { .refclk = 38400, .cdclk = 204000, .divider = 2, .ratio = 34, .waveform = 0x9248 }, @@ -3353,6 +3386,12 @@ void intel_init_cdclk_hooks(struct drm_i915_private *dev_priv) /* Wa_22011320316:adl-p[a0] */ if (IS_ADLP_DISPLAY_STEP(dev_priv, STEP_A0, STEP_B0)) dev_priv->display.cdclk.table = adlp_a_step_cdclk_table; + /* + * BSpec: 55409 + * 480 MHz supported on SKUs that have a RPL-U Device ID + */ + else if (is_rplu(dev_priv)) + dev_priv->cdclk.table = rplu_cdclk_table; else dev_priv->display.cdclk.table = adlp_cdclk_table; } else if (IS_ROCKETLAKE(dev_priv)) { -- 2.25.1
