From 99d754bb46e41cf88f6e5d96dd3c6c3b9c3bddb3 Mon Sep 17 00:00:00 2001 From: Patrik Jakobsson Date: Thu, 7 Nov 2013 02:34:12 +0100 Subject: [PATCH] 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 --- drivers/gpu/drm/gma500/oaktrail_crtc.c | 13 ++++++------- 1 file 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); } -- GitLab