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drm/i915/cx0: PLL verify debug state print

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Print out hw and sw pll states for better debugging support.

Signed-off-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Mika Kahola <mika.kahola@intel.com>
Reviewed-by: Suraj Kandpal <suraj.kandpal@intel.com>
Link: https://lore.kernel.org/r/20251117104602.2363671-29-mika.kahola@intel.com
This commit is contained in:
Imre Deak 2025-11-17 12:45:58 +02:00 committed by Mika Kahola
parent f3b04e27f7
commit b800af732c
1 changed files with 12 additions and 5 deletions
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17
drivers/gpu/drm/i915/display/intel_dpll_mgr.c
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@ -4882,11 +4882,18 @@ verify_single_dpll_state(struct intel_display *display,
"%s: pll enabled crtcs mismatch (expected 0x%x in 0x%x)\n",
pll->info->name, pipe_mask, pll->state.pipe_mask);
INTEL_DISPLAY_STATE_WARN(display,
pll->on && memcmp(&pll->state.hw_state, &dpll_hw_state,
sizeof(dpll_hw_state)),
"%s: pll hw state mismatch\n",
pll->info->name);
if (INTEL_DISPLAY_STATE_WARN(display,
pll->on && memcmp(&pll->state.hw_state, &dpll_hw_state,
sizeof(dpll_hw_state)),
"%s: pll hw state mismatch\n",
pll->info->name)) {
struct drm_printer p = drm_dbg_printer(display->drm, DRM_UT_KMS, NULL);
drm_printf(&p, "PLL %s HW state:\n", pll->info->name);
intel_dpll_dump_hw_state(display, &p, &dpll_hw_state);
drm_printf(&p, "PLL %s SW state:\n", pll->info->name);
intel_dpll_dump_hw_state(display, &p, &pll->state.hw_state);
}
}
static bool has_alt_port_dpll(const struct intel_dpll *old_pll,