diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dce/dce_panel_cntl.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dce/dce_panel_cntl.c | 18 |
1 files changed, 12 insertions, 6 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dce/dce_panel_cntl.c b/drivers/gpu/drm/amd/display/dc/dce/dce_panel_cntl.c index 43781e77be43..74f7619d4154 100644 --- a/drivers/gpu/drm/amd/display/dc/dce/dce_panel_cntl.c +++ b/drivers/gpu/drm/amd/display/dc/dce/dce_panel_cntl.c @@ -46,13 +46,14 @@ #define FN(reg_name, field_name) \ dce_panel_cntl->shift->field_name, dce_panel_cntl->mask->field_name -static unsigned int calculate_16_bit_backlight_from_pwm(struct dce_panel_cntl *dce_panel_cntl) +static unsigned int dce_get_16_bit_backlight_from_pwm(struct panel_cntl *panel_cntl) { uint64_t current_backlight; uint32_t round_result; uint32_t pwm_period_cntl, bl_period, bl_int_count; uint32_t bl_pwm_cntl, bl_pwm, fractional_duty_cycle_en; uint32_t bl_period_mask, bl_pwm_mask; + struct dce_panel_cntl *dce_panel_cntl = TO_DCE_PANEL_CNTL(panel_cntl); pwm_period_cntl = REG_READ(BL_PWM_PERIOD_CNTL); REG_GET(BL_PWM_PERIOD_CNTL, BL_PWM_PERIOD, &bl_period); @@ -75,7 +76,7 @@ static unsigned int calculate_16_bit_backlight_from_pwm(struct dce_panel_cntl *d else bl_pwm &= 0xFFFF; - current_backlight = bl_pwm << (1 + bl_int_count); + current_backlight = (uint64_t)bl_pwm << (1 + bl_int_count); if (bl_period == 0) bl_period = 0xFFFF; @@ -150,7 +151,7 @@ static uint32_t dce_panel_cntl_hw_init(struct panel_cntl *panel_cntl) REG_UPDATE(BL_PWM_GRP1_REG_LOCK, BL_PWM_GRP1_REG_LOCK, 0); - current_backlight = calculate_16_bit_backlight_from_pwm(dce_panel_cntl); + current_backlight = dce_get_16_bit_backlight_from_pwm(panel_cntl); return current_backlight; } @@ -158,11 +159,15 @@ static uint32_t dce_panel_cntl_hw_init(struct panel_cntl *panel_cntl) static bool dce_is_panel_backlight_on(struct panel_cntl *panel_cntl) { struct dce_panel_cntl *dce_panel_cntl = TO_DCE_PANEL_CNTL(panel_cntl); - uint32_t value; + uint32_t blon, blon_ovrd, pwrseq_target_state; - REG_GET(PWRSEQ_CNTL, LVTMA_BLON, &value); + REG_GET_2(PWRSEQ_CNTL, LVTMA_BLON, &blon, LVTMA_BLON_OVRD, &blon_ovrd); + REG_GET(PWRSEQ_CNTL, LVTMA_PWRSEQ_TARGET_STATE, &pwrseq_target_state); - return value; + if (blon_ovrd) + return blon; + else + return pwrseq_target_state; } static bool dce_is_panel_powered_on(struct panel_cntl *panel_cntl) @@ -273,6 +278,7 @@ static const struct panel_cntl_funcs dce_link_panel_cntl_funcs = { .is_panel_powered_on = dce_is_panel_powered_on, .store_backlight_level = dce_store_backlight_level, .driver_set_backlight = dce_driver_set_backlight, + .get_current_backlight = dce_get_16_bit_backlight_from_pwm, }; void dce_panel_cntl_construct( |