From: Anusha Srivatsa <anusha.srivatsa@xxxxxxxxx>
ADL-P has 3 possible refclk frequencies: 19.2MHz,
24MHz and 38.4MHz
BSpec: 55409, 49208
Cc: Matt Roper <matthew.d.roper@xxxxxxxxx>
Cc: Clinton Taylor <clinton.a.taylor@xxxxxxxxx>
Cc: José Roberto de Souza <jose.souza@xxxxxxxxx>
Signed-off-by: Anusha Srivatsa <anusha.srivatsa@xxxxxxxxx>
Signed-off-by: Clinton Taylor <Clinton.A.Taylor@xxxxxxxxx>
Signed-off-by: Matt Roper <matthew.d.roper@xxxxxxxxx>
---
drivers/gpu/drm/i915/display/intel_cdclk.c | 29 +++++++++++++++++++++-
1 file changed, 28 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/display/intel_cdclk.c b/drivers/gpu/drm/i915/display/intel_cdclk.c
index 1c7cdd17f89a..c5fdf688fc89 100644
--- a/drivers/gpu/drm/i915/display/intel_cdclk.c
+++ b/drivers/gpu/drm/i915/display/intel_cdclk.c
@@ -1257,6 +1257,27 @@ static const struct intel_cdclk_vals rkl_cdclk_table[] = {
{}
};
+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 },
+ { .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 = 176000, .divider = 3, .ratio = 22 },
+ { .refclk = 24000, .cdclk = 192000, .divider = 2, .ratio = 16 },
+ { .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 = 179200, .divider = 3, .ratio = 14 },
+ { .refclk = 38400, .cdclk = 192000, .divider = 2, .ratio = 10 },
+ { .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 int bxt_calc_cdclk(struct drm_i915_private *dev_priv, int min_cdclk)
{
const struct intel_cdclk_vals *table = dev_priv->cdclk.table;
@@ -2848,7 +2869,13 @@ u32 intel_read_rawclk(struct drm_i915_private *dev_priv)
*/
void intel_init_cdclk_hooks(struct drm_i915_private *dev_priv)
{
- if (IS_ROCKETLAKE(dev_priv)) {
+ if (IS_ALDERLAKE_P(dev_priv)) {
+ dev_priv->display.set_cdclk = bxt_set_cdclk;
+ 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;
+ } 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;
dev_priv->display.modeset_calc_cdclk = bxt_modeset_calc_cdclk;
--
2.25.4
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