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drm/i915/display: BMG supports UHBR13.5

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UHBR20 is not supported by battlemage and the maximum link rate
supported is UHBR13.5

v2: Replace IS_DGFX with IS_BATTLEMAGE (Jani)

HSD: 16023263677
Signed-off-by: Arun R Murthy <arun.r.murthy@intel.com>
Reviewed-by: Mika Kahola <mika.kahola@intel.com>
Fixes: 98b1c87a5e ("drm/i915/xe2hpd: Set maximum DP rate to UHBR13.5")
Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240827081205.136569-1-arun.r.murthy@intel.com
(cherry picked from commit 9c2338ac45)
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
This commit is contained in:
Arun R Murthy
2024-08-27 13:42:05 +05:30
committed by Joonas Lahtinen
parent 9498f2e24e
commit fcd33d434d
1 changed files with 11 additions and 2 deletions
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13
drivers/gpu/drm/i915/display/intel_dp.c
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@@ -531,6 +531,10 @@ static void
intel_dp_set_source_rates(struct intel_dp *intel_dp)
{
/* The values must be in increasing order */
static const int bmg_rates[] = {
162000, 216000, 243000, 270000, 324000, 432000, 540000, 675000,
810000, 1000000, 1350000,
};
static const int mtl_rates[] = {
162000, 216000, 243000, 270000, 324000, 432000, 540000, 675000,
810000, 1000000, 2000000,
@@ -561,8 +565,13 @@ intel_dp_set_source_rates(struct intel_dp *intel_dp)
intel_dp->source_rates || intel_dp->num_source_rates);
if (DISPLAY_VER(dev_priv) >= 14) {
source_rates = mtl_rates;
size = ARRAY_SIZE(mtl_rates);
if (IS_BATTLEMAGE(dev_priv)) {
source_rates = bmg_rates;
size = ARRAY_SIZE(bmg_rates);
} else {
source_rates = mtl_rates;
size = ARRAY_SIZE(mtl_rates);
}
max_rate = mtl_max_source_rate(intel_dp);
} else if (DISPLAY_VER(dev_priv) >= 11) {
source_rates = icl_rates;