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git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
drm/i915/cx0: PLL verify debug state print
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
authored by
Imre Deak
and committed by
Mika Kahola
b800af73
f3b04e27
+12
-5
+12
-5
drivers/gpu/drm/i915/display/intel_dpll_mgr.c
+12
-5
drivers/gpu/drm/i915/display/intel_dpll_mgr.c
···
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"%s: pll enabled crtcs mismatch (expected 0x%x in 0x%x)\n",
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pll->info->name, pipe_mask, pll->state.pipe_mask);
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INTEL_DISPLAY_STATE_WARN(display,
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pll->on && memcmp(&pll->state.hw_state, &dpll_hw_state,
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sizeof(dpll_hw_state)),
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"%s: pll hw state mismatch\n",
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pll->info->name);
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if (INTEL_DISPLAY_STATE_WARN(display,
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pll->on && memcmp(&pll->state.hw_state, &dpll_hw_state,
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sizeof(dpll_hw_state)),
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"%s: pll hw state mismatch\n",
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pll->info->name)) {
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struct drm_printer p = drm_dbg_printer(display->drm, DRM_UT_KMS, NULL);
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+
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drm_printf(&p, "PLL %s HW state:\n", pll->info->name);
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intel_dpll_dump_hw_state(display, &p, &dpll_hw_state);
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drm_printf(&p, "PLL %s SW state:\n", pll->info->name);
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intel_dpll_dump_hw_state(display, &p, &pll->state.hw_state);
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}
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}
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static bool has_alt_port_dpll(const struct intel_dpll *old_pll,