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| author |   Patrik Jakobsson <patrik.r.jakobsson@gmail.com> | 2013-11-07 02:34:12 +0100 |
|---|---|---|
| committer | Patrik Jakobsson <patrik.r.jakobsson@gmail.com> | 2013-11-08 16:22:12 +0100 |
| commit | 99d754bb46e41cf88f6e5d96dd3c6c3b9c3bddb3 (patch) | |
| tree | 8f26788e5e86d04c15dd872cf2a8f27b0270e0e1 /drivers/gpu/drm/gma500 | |
| parent | drm/gma500/mrst: Add aux register writes to SDVO (diff) | |
| download | linux-dev-99d754bb46e41cf88f6e5d96dd3c6c3b9c3bddb3.tar.xz linux-dev-99d754bb46e41cf88f6e5d96dd3c6c3b9c3bddb3.zip | |
drm/gma500/mrst: Replace WMs and chickenbits with values from EMGD
For the minnowboard to work the values found in EMGD are required.
This might break Oaktrail but without hardware to test with I cannot
really tell (and do not really care).
Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Diffstat (limited to 'drivers/gpu/drm/gma500')
| -rw-r--r-- | drivers/gpu/drm/gma500/oaktrail_crtc.c | 13 |
1 files changed, 6 insertions, 7 deletions
diff --git a/drivers/gpu/drm/gma500/oaktrail_crtc.c b/drivers/gpu/drm/gma500/oaktrail_crtc.c index 25bf206b46f2..8195e8592107 100644 --- a/drivers/gpu/drm/gma500/oaktrail_crtc.c +++ b/drivers/gpu/drm/gma500/oaktrail_crtc.c @@ -332,16 +332,15 @@ static void oaktrail_crtc_dpms(struct drm_crtc *crtc, int mode) break; } - /*Set FIFO Watermarks*/ - REG_WRITE(DSPARB, 0x3FFF); - REG_WRITE(DSPFW1, 0x3F88080A); - REG_WRITE(DSPFW2, 0x0b060808); + /* Set FIFO Watermarks (values taken from EMGD) */ + REG_WRITE(DSPARB, 0x3f80); + REG_WRITE(DSPFW1, 0x3f8f0404); + REG_WRITE(DSPFW2, 0x04040f04); REG_WRITE(DSPFW3, 0x0); - REG_WRITE(DSPFW4, 0x08030404); + REG_WRITE(DSPFW4, 0x04040404); REG_WRITE(DSPFW5, 0x04040404); REG_WRITE(DSPFW6, 0x78); - REG_WRITE(0x70400, REG_READ(0x70400) | 0x4000); - /* Must write Bit 14 of the Chicken Bit Register */ + REG_WRITE(DSPCHICKENBIT, REG_READ(DSPCHICKENBIT) | 0xc040); gma_power_end(dev); } |