diff options
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_dmc.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_dmc.c b/drivers/gpu/drm/i915/display/intel_dmc.c index d933f82ffbee..4cbc19e97db7 100644 --- a/drivers/gpu/drm/i915/display/intel_dmc.c +++ b/drivers/gpu/drm/i915/display/intel_dmc.c @@ -600,6 +600,12 @@ static void dmc_load_program(struct intel_display *display, } } +static bool need_pipedmc_load_program(struct intel_display *display) +{ + /* On TGL/derivatives pipe DMC state is lost when PG1 is disabled */ + return DISPLAY_VER(display) == 12; +} + void intel_dmc_enable_pipe(struct intel_display *display, enum pipe pipe) { enum intel_dmc_id dmc_id = PIPE_TO_DMC_ID(pipe); @@ -607,6 +613,9 @@ void intel_dmc_enable_pipe(struct intel_display *display, enum pipe pipe) if (!is_valid_dmc_id(dmc_id) || !has_dmc_id_fw(display, dmc_id)) return; + if (need_pipedmc_load_program(display)) + dmc_load_program(display, dmc_id); + if (DISPLAY_VER(display) >= 20) { intel_de_write(display, PIPEDMC_INTERRUPT(pipe), pipedmc_interrupt_mask(display)); intel_de_write(display, PIPEDMC_INTERRUPT_MASK(pipe), ~pipedmc_interrupt_mask(display)); |