From: Clint Taylor <clinton.a.taylor@xxxxxxxxx>
Add Xe2_HPD specific CDCLK table and use MTL Funcs.
Bspec: 65243
CC: Lucas De Marchi <lucas.demarchi@xxxxxxxxx>
Signed-off-by: Clint Taylor <clinton.a.taylor@xxxxxxxxx>
Signed-off-by: Balasubramani Vivekanandan <balasubramani.vivekanandan@xxxxxxxxx>
Reviewed-by: Matt Roper <matthew.d.roper@xxxxxxxxx>
Signed-off-by: Radhakrishna Sripada <radhakrishna.sripada@xxxxxxxxx>
---
drivers/gpu/drm/i915/display/intel_cdclk.c | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/drivers/gpu/drm/i915/display/intel_cdclk.c b/drivers/gpu/drm/i915/display/intel_cdclk.c
index 7a833b5f2de2..b78154c82a71 100644
--- a/drivers/gpu/drm/i915/display/intel_cdclk.c
+++ b/drivers/gpu/drm/i915/display/intel_cdclk.c
@@ -1443,6 +1443,14 @@ static const struct intel_cdclk_vals xe2lpd_cdclk_table[] = {
{}
};
+/*
+ * Xe2_HPD always uses the minimal cdclk table from Wa_15015413771
+ */
+static const struct intel_cdclk_vals xe2hpd_cdclk_table[] = {
+ { .refclk = 38400, .cdclk = 652800, .ratio = 34, .waveform = 0xffff },
+ {}
+};
+
static const int cdclk_squash_len = 16;
static int cdclk_squash_divider(u16 waveform)
@@ -3778,6 +3786,9 @@ void intel_init_cdclk_hooks(struct drm_i915_private *dev_priv)
if (DISPLAY_VER(dev_priv) >= 20) {
dev_priv->display.funcs.cdclk = &rplu_cdclk_funcs;
dev_priv->display.cdclk.table = xe2lpd_cdclk_table;
+ } else if (DISPLAY_VER_FULL(dev_priv) >= IP_VER(14, 1)) {
+ dev_priv->display.funcs.cdclk = &rplu_cdclk_funcs;
+ dev_priv->display.cdclk.table = xe2hpd_cdclk_table;
} else if (DISPLAY_VER(dev_priv) >= 14) {
dev_priv->display.funcs.cdclk = &rplu_cdclk_funcs;
dev_priv->display.cdclk.table = mtl_cdclk_table;
--
2.34.1
