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drm/i915/dp: Extract helper to get the hdisplay limit

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Separate out function to get the hdisplay limit for a given platform.

v2: Rename the helper to intel_dp_max_hdisplay_per_pipe(). (Imre)

Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Link: https://patch.msgid.link/20260202103731.357416-4-ankit.k.nautiyal@intel.com
This commit is contained in:
Ankit Nautiyal 2026-02-02 16:07:17 +05:30
parent 19f0dc41c7
commit 769bcb5733
1 changed files with 7 additions and 4 deletions
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11
drivers/gpu/drm/i915/display/intel_dp.c
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@ -1371,6 +1371,12 @@ intel_dp_mode_valid_downstream(struct intel_connector *connector,
return MODE_OK;
}
static
int intel_dp_max_hdisplay_per_pipe(struct intel_display *display)
{
return DISPLAY_VER(display) >= 30 ? 6144 : 5120;
}
static
bool intel_dp_needs_joiner(struct intel_dp *intel_dp,
struct intel_connector *connector,
@ -1378,17 +1384,14 @@ bool intel_dp_needs_joiner(struct intel_dp *intel_dp,
int num_joined_pipes)
{
struct intel_display *display = to_intel_display(intel_dp);
int hdisplay_limit;
if (!intel_dp_has_joiner(intel_dp))
return false;
num_joined_pipes /= 2;
hdisplay_limit = DISPLAY_VER(display) >= 30 ? 6144 : 5120;
return clock > num_joined_pipes * display->cdclk.max_dotclk_freq ||
hdisplay > num_joined_pipes * hdisplay_limit;
hdisplay > num_joined_pipes * intel_dp_max_hdisplay_per_pipe(display);
}
int intel_dp_num_joined_pipes(struct intel_dp *intel_dp,