diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dce/dce_abm.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dce/dce_abm.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dce/dce_abm.c b/drivers/gpu/drm/amd/display/dc/dce/dce_abm.c index 2959c3c9390b..3d87a8800300 100644 --- a/drivers/gpu/drm/amd/display/dc/dce/dce_abm.c +++ b/drivers/gpu/drm/amd/display/dc/dce/dce_abm.c @@ -58,6 +58,9 @@ static bool dce_abm_set_pipe(struct abm *abm, uint32_t controller_id) struct dce_abm *abm_dce = TO_DCE_ABM(abm); uint32_t rampingBoundary = 0xFFFF; + if (abm->dmcu_is_running == false) + return true; + REG_WAIT(MASTER_COMM_CNTL_REG, MASTER_COMM_INTERRUPT, 0, 1, 80000); @@ -302,6 +305,9 @@ static bool dce_abm_set_level(struct abm *abm, uint32_t level) { struct dce_abm *abm_dce = TO_DCE_ABM(abm); + if (abm->dmcu_is_running == false) + return true; + REG_WAIT(MASTER_COMM_CNTL_REG, MASTER_COMM_INTERRUPT, 0, 1, 80000); @@ -320,6 +326,9 @@ static bool dce_abm_immediate_disable(struct abm *abm) { struct dce_abm *abm_dce = TO_DCE_ABM(abm); + if (abm->dmcu_is_running == false) + return true; + dce_abm_set_pipe(abm, MCP_DISABLE_ABM_IMMEDIATELY); abm->stored_backlight_registers.BL_PWM_CNTL = @@ -443,6 +452,7 @@ static void dce_abm_construct( base->stored_backlight_registers.BL_PWM_CNTL2 = 0; base->stored_backlight_registers.BL_PWM_PERIOD_CNTL = 0; base->stored_backlight_registers.LVTMA_PWRSEQ_REF_DIV_BL_PWM_REF_DIV = 0; + base->dmcu_is_running = false; abm_dce->regs = regs; abm_dce->abm_shift = abm_shift; @@ -473,7 +483,8 @@ void dce_abm_destroy(struct abm **abm) { struct dce_abm *abm_dce = TO_DCE_ABM(*abm); - abm_dce->base.funcs->set_abm_immediate_disable(*abm); + if (abm_dce->base.dmcu_is_running == true) + abm_dce->base.funcs->set_abm_immediate_disable(*abm); kfree(abm_dce); *abm = NULL; |