diff options
Diffstat (limited to 'drivers/gpu/drm/vc4/vc4_hvs.c')
| -rw-r--r-- | drivers/gpu/drm/vc4/vc4_hvs.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/drivers/gpu/drm/vc4/vc4_hvs.c b/drivers/gpu/drm/vc4/vc4_hvs.c index 604933e20e6a..c8cae10500b9 100644 --- a/drivers/gpu/drm/vc4/vc4_hvs.c +++ b/drivers/gpu/drm/vc4/vc4_hvs.c @@ -197,6 +197,29 @@ static void vc4_hvs_update_gamma_lut(struct drm_crtc *crtc) vc4_hvs_lut_load(crtc); } +u8 vc4_hvs_get_fifo_frame_count(struct drm_device *dev, unsigned int fifo) +{ + struct vc4_dev *vc4 = to_vc4_dev(dev); + u8 field = 0; + + switch (fifo) { + case 0: + field = VC4_GET_FIELD(HVS_READ(SCALER_DISPSTAT1), + SCALER_DISPSTAT1_FRCNT0); + break; + case 1: + field = VC4_GET_FIELD(HVS_READ(SCALER_DISPSTAT1), + SCALER_DISPSTAT1_FRCNT1); + break; + case 2: + field = VC4_GET_FIELD(HVS_READ(SCALER_DISPSTAT2), + SCALER_DISPSTAT2_FRCNT2); + break; + } + + return field; +} + int vc4_hvs_get_fifo_from_output(struct drm_device *dev, unsigned int output) { struct vc4_dev *vc4 = to_vc4_dev(dev); |