drm/i915/lt_phy: Add xe3plpd .compare_hw_state hook

Add .compare_hw_state function pointer for xe3plpd platform
to support dpll framework.

Signed-off-by: Mika Kahola <mika.kahola@intel.com>
Reviewed-by: Suraj Kandpal <suraj.kandpal@intel.com>
Link: https://patch.msgid.link/20260312080657.2648265-13-mika.kahola@intel.com

diff --git a/drivers/gpu/drm/i915/display/intel_dpll_mgr.c b/drivers/gpu/drm/i915/display/intel_dpll_mgr.c
index 26b78063dd9464ad64c4d224e108fbc054e7d68b..c1d7d990954467bd3907bd2406c5d1a3e8f81f08 100644 (file)
--- a/drivers/gpu/drm/i915/display/intel_dpll_mgr.c
+++ b/drivers/gpu/drm/i915/display/intel_dpll_mgr.c
@@ -4655,6 +4655,15 @@ static void xe3plpd_dump_hw_state(struct drm_printer *p,
        intel_lt_phy_dump_hw_state(p, &dpll_hw_state->ltpll);
 }
 
+static bool xe3plpd_compare_hw_state(const struct intel_dpll_hw_state *_a,
+                                    const struct intel_dpll_hw_state *_b)
+{
+       const struct intel_lt_phy_pll_state *a = &_a->ltpll;
+       const struct intel_lt_phy_pll_state *b = &_b->ltpll;
+
+       return intel_lt_phy_pll_compare_hw_state(a, b);
+}
+
 __maybe_unused
 static const struct intel_dpll_mgr xe3plpd_pll_mgr = {
        .dpll_info = xe3plpd_plls,
@@ -4664,6 +4673,7 @@ static const struct intel_dpll_mgr xe3plpd_pll_mgr = {
        .update_active_dpll = icl_update_active_dpll,
        .update_ref_clks = icl_update_dpll_ref_clks,
        .dump_hw_state = xe3plpd_dump_hw_state,
+       .compare_hw_state = xe3plpd_compare_hw_state,
 };
 
 /**