diff options
| author | Maxime Ripard <maxime@cerno.tech> | 2022-03-31 16:37:39 +0200 |
|---|---|---|
| committer | Maxime Ripard <maxime@cerno.tech> | 2022-04-06 15:18:01 +0200 |
| commit | b51cd7ad143d2eb31a6df81c2183128920e47c2b (patch) | |
| tree | 8f611b67c67de9724cc2448acb89249869f58f6e /drivers/gpu/drm/vc4/vc4_regs.h | |
| parent | 748acfc98adab21a93ae7a1b5bed0f048463e873 (diff) | |
drm/vc4: hvs: Fix frame count register readout
In order to get the field currently being output, the driver has been
using the display FIFO frame count in the HVS, reading a 6-bit field at
the offset 12 in the DISPSTATx register.
While that field is indeed at that location for the FIFO 1 and 2, the
one for the FIFO0 is actually in the DISPSTAT1 register, at the offset
18.
Fixes: e538092cb15c ("drm/vc4: Enable precise vblank timestamping for interlaced modes.")
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://lore.kernel.org/r/20220331143744.777652-3-maxime@cerno.tech
Diffstat (limited to 'drivers/gpu/drm/vc4/vc4_regs.h')
| -rw-r--r-- | drivers/gpu/drm/vc4/vc4_regs.h | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/drivers/gpu/drm/vc4/vc4_regs.h b/drivers/gpu/drm/vc4/vc4_regs.h index c8210247cf24..a2b5cbbbc1b0 100644 --- a/drivers/gpu/drm/vc4/vc4_regs.h +++ b/drivers/gpu/drm/vc4/vc4_regs.h @@ -379,8 +379,6 @@ # define SCALER_DISPSTATX_MODE_EOF 3 # define SCALER_DISPSTATX_FULL BIT(29) # define SCALER_DISPSTATX_EMPTY BIT(28) -# define SCALER_DISPSTATX_FRAME_COUNT_MASK VC4_MASK(17, 12) -# define SCALER_DISPSTATX_FRAME_COUNT_SHIFT 12 # define SCALER_DISPSTATX_LINE_MASK VC4_MASK(11, 0) # define SCALER_DISPSTATX_LINE_SHIFT 0 @@ -403,9 +401,15 @@ (x) * (SCALER_DISPBKGND1 - \ SCALER_DISPBKGND0)) #define SCALER_DISPSTAT1 0x00000058 +# define SCALER_DISPSTAT1_FRCNT0_MASK VC4_MASK(23, 18) +# define SCALER_DISPSTAT1_FRCNT0_SHIFT 18 +# define SCALER_DISPSTAT1_FRCNT1_MASK VC4_MASK(17, 12) +# define SCALER_DISPSTAT1_FRCNT1_SHIFT 12 + #define SCALER_DISPSTATX(x) (SCALER_DISPSTAT0 + \ (x) * (SCALER_DISPSTAT1 - \ SCALER_DISPSTAT0)) + #define SCALER_DISPBASE1 0x0000005c #define SCALER_DISPBASEX(x) (SCALER_DISPBASE0 + \ (x) * (SCALER_DISPBASE1 - \ @@ -415,7 +419,11 @@ (x) * (SCALER_DISPCTRL1 - \ SCALER_DISPCTRL0)) #define SCALER_DISPBKGND2 0x00000064 + #define SCALER_DISPSTAT2 0x00000068 +# define SCALER_DISPSTAT2_FRCNT2_MASK VC4_MASK(17, 12) +# define SCALER_DISPSTAT2_FRCNT2_SHIFT 12 + #define SCALER_DISPBASE2 0x0000006c #define SCALER_DISPALPHA2 0x00000070 #define SCALER_GAMADDR 0x00000078 |