The longer FIFOs in vc5 pixelvalves means that the FIFO full level
doesn't fit in the original register field and that we also have a
secondary field. In order to prepare for this, let's move the registers
fill part to a helper function.
Reviewed-by: Eric Anholt <e...@anholt.net>
Tested-by: Chanwoo Choi <cw00.c...@samsung.com>
Tested-by: Hoegeun Kwon <hoegeun.k...@samsung.com>
Tested-by: Stefan Wahren <stefan.wah...@i2se.com>
Signed-off-by: Maxime Ripard <max...@cerno.tech>
---
drivers/gpu/drm/vc4/vc4_crtc.c | 12 ++++++++++--
1 file changed, 10 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/vc4/vc4_crtc.c b/drivers/gpu/drm/vc4/vc4_crtc.c
index 2c64efd2d3d9..1d9e3658ae59 100644
--- a/drivers/gpu/drm/vc4/vc4_crtc.c
+++ b/drivers/gpu/drm/vc4/vc4_crtc.c
@@ -234,6 +234,15 @@ static u32 vc4_get_fifo_full_level(struct vc4_crtc
*vc4_crtc, u32 format)
}
}
+static u32 vc4_crtc_get_fifo_full_level_bits(struct vc4_crtc *vc4_crtc,
+ u32 format)
+{
+ u32 level = vc4_get_fifo_full_level(vc4_crtc, format);
+
+ return VC4_SET_FIELD(level & 0x3f,
+ PV_CONTROL_FIFO_LEVEL);
+}
+
/*
* Returns the encoder attached to the CRTC.
*
@@ -336,9 +345,8 @@ static void vc4_crtc_config_pv(struct drm_crtc *crtc)
CRTC_WRITE(PV_HACT_ACT, mode->hdisplay * pixel_rep);
CRTC_WRITE(PV_CONTROL,
+ vc4_crtc_get_fifo_full_level_bits(vc4_crtc, format) |
VC4_SET_FIELD(format, PV_CONTROL_FORMAT) |
- VC4_SET_FIELD(vc4_get_fifo_full_level(vc4_crtc, format),
- PV_CONTROL_FIFO_LEVEL) |
VC4_SET_FIELD(pixel_rep - 1, PV_CONTROL_PIXEL_REP) |
PV_CONTROL_CLR_AT_START |
PV_CONTROL_TRIGGER_UNDERFLOW |
--
git-series 0.9.1
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