diff options
Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_display_wa.c')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_display_wa.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_display_wa.c b/drivers/gpu/drm/i915/display/intel_display_wa.c index f57280e9d041..31cd2c9cd488 100644 --- a/drivers/gpu/drm/i915/display/intel_display_wa.c +++ b/drivers/gpu/drm/i915/display/intel_display_wa.c @@ -3,6 +3,8 @@ * Copyright © 2023 Intel Corporation */ +#include <drm/drm_print.h> + #include "i915_reg.h" #include "intel_de.h" #include "intel_display_core.h" @@ -39,3 +41,36 @@ void intel_display_wa_apply(struct intel_display *display) else if (DISPLAY_VER(display) == 11) gen11_display_wa_apply(display); } + +/* + * Wa_16025573575: + * Fixes: Issue with bitbashing on Xe3 based platforms. + * Workaround: Set masks bits in GPIO CTL and preserve it during bitbashing sequence. + */ +static bool intel_display_needs_wa_16025573575(struct intel_display *display) +{ + return DISPLAY_VERx100(display) == 3000 || DISPLAY_VERx100(display) == 3002; +} + +/* + * Wa_14011503117: + * Fixes: Before enabling the scaler DE fatal error is masked + * Workaround: Unmask the DE fatal error register after enabling the scaler + * and after waiting of at least 1 frame. + */ +bool __intel_display_wa(struct intel_display *display, enum intel_display_wa wa, const char *name) +{ + switch (wa) { + case INTEL_DISPLAY_WA_16023588340: + return intel_display_needs_wa_16023588340(display); + case INTEL_DISPLAY_WA_16025573575: + return intel_display_needs_wa_16025573575(display); + case INTEL_DISPLAY_WA_14011503117: + return DISPLAY_VER(display) == 13; + default: + drm_WARN(display->drm, 1, "Missing Wa number: %s\n", name); + break; + } + + return false; +} |