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> > static const struct intel_display_device_info * > -probe_gmdid_display(struct drm_i915_private *i915, u16 *ver, u16 *rel, u16 *step) > +probe_gmdid_display(struct drm_i915_private *i915, struct intel_display_ip_ver *ip_ver) > { > struct pci_dev *pdev = to_pci_dev(i915->drm.dev); > + struct intel_display_ip_ver gmd_id; hmm... technically it is just d_id here. or perhaps gmd_id_disp ? But I'm bad with nameing, so up to you: Reviewed-by: Rodrigo Vivi > void __iomem *addr; > u32 val; > int i; > > - /* The caller expects to ver, rel and step to be initialized > - * here, and there's no good way to check when there was a > - * failure and no_display was returned. So initialize all these > - * values here zero, to be sure. > - */ > - *ver = 0; > - *rel = 0; > - *step = 0; > - > addr = pci_iomap_range(pdev, 0, i915_mmio_reg_offset(GMD_ID_DISPLAY), sizeof(u32)); > if (!addr) { > drm_err(&i915->drm, "Cannot map MMIO BAR to read display GMD_ID\n"); > @@ -892,17 +884,20 @@ probe_gmdid_display(struct drm_i915_private *i915, u16 *ver, u16 *rel, u16 *step > return NULL; > } > > - *ver = REG_FIELD_GET(GMD_ID_ARCH_MASK, val); > - *rel = REG_FIELD_GET(GMD_ID_RELEASE_MASK, val); > - *step = REG_FIELD_GET(GMD_ID_STEP, val); > + gmd_id.ver = REG_FIELD_GET(GMD_ID_ARCH_MASK, val); > + gmd_id.rel = REG_FIELD_GET(GMD_ID_RELEASE_MASK, val); > + gmd_id.step = REG_FIELD_GET(GMD_ID_STEP, val); > > - for (i = 0; i < ARRAY_SIZE(gmdid_display_map); i++) > - if (*ver == gmdid_display_map[i].ver && > - *rel == gmdid_display_map[i].rel) > + for (i = 0; i < ARRAY_SIZE(gmdid_display_map); i++) { > + if (gmd_id.ver == gmdid_display_map[i].ver && > + gmd_id.rel == gmdid_display_map[i].rel) { > + *ip_ver = gmd_id; > return gmdid_display_map[i].display; > + } > + } > > drm_err(&i915->drm, "Unrecognized display IP version %d.%02d; disabling display.\n", > - *ver, *rel); > + gmd_id.ver, gmd_id.rel); > return NULL; > } > > @@ -927,7 +922,7 @@ void intel_display_device_probe(struct drm_i915_private *i915) > { > struct pci_dev *pdev = to_pci_dev(i915->drm.dev); > const struct intel_display_device_info *info; > - u16 ver, rel, step; > + struct intel_display_ip_ver ip_ver = {}; > > /* Add drm device backpointer as early as possible. */ > i915->display.drm = &i915->drm; > @@ -940,7 +935,7 @@ void intel_display_device_probe(struct drm_i915_private *i915) > } > > if (HAS_GMD_ID(i915)) > - info = probe_gmdid_display(i915, &ver, &rel, &step); > + info = probe_gmdid_display(i915, &ip_ver); > else > info = probe_display(i915); > > @@ -953,11 +948,8 @@ void intel_display_device_probe(struct drm_i915_private *i915) > &DISPLAY_INFO(i915)->__runtime_defaults, > sizeof(*DISPLAY_RUNTIME_INFO(i915))); > > - if (HAS_GMD_ID(i915)) { > - DISPLAY_RUNTIME_INFO(i915)->ip.ver = ver; > - DISPLAY_RUNTIME_INFO(i915)->ip.rel = rel; > - DISPLAY_RUNTIME_INFO(i915)->ip.step = step; > - } > + if (ip_ver.ver || ip_ver.rel || ip_ver.step) > + DISPLAY_RUNTIME_INFO(i915)->ip = ip_ver; > > return; > > diff --git a/drivers/gpu/drm/i915/display/intel_display_device.h b/drivers/gpu/drm/i915/display/intel_display_device.h > index 17ddf82f0b6e..fd2d03bfe8a6 100644 > --- a/drivers/gpu/drm/i915/display/intel_display_device.h > +++ b/drivers/gpu/drm/i915/display/intel_display_device.h > @@ -111,7 +111,7 @@ struct drm_printer; > (DISPLAY_VER(i915) >= (from) && DISPLAY_VER(i915) <= (until)) > > struct intel_display_runtime_info { > - struct { > + struct intel_display_ip_ver { > u16 ver; > u16 rel; > u16 step; > -- > 2.39.2 >