From e29206381a1436e0f47c0f5b9a23159a03c57715 Mon Sep 17 00:00:00 2001 From: Florian Tobias Schandinat Date: Wed, 22 Feb 2012 18:53:08 +0000 Subject: viafb: fix IGA1 modesetting on VX900 Even if the documentation calls this bit "Reserved" it has to be set to 0 for correct modesetting on IGA1. Signed-off-by: Florian Tobias Schandinat Cc: stable@vger.kernel.org --- drivers/video/via/hw.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'drivers/video/via') diff --git a/drivers/video/via/hw.c b/drivers/video/via/hw.c index 8bdf80e270e2..8497727d66de 100644 --- a/drivers/video/via/hw.c +++ b/drivers/video/via/hw.c @@ -1810,6 +1810,9 @@ static void hw_init(void) break; } + /* magic required on VX900 for correct modesetting on IGA1 */ + via_write_reg_mask(VIACR, 0x45, 0x00, 0x01); + /* probably this should go to the scaling code one day */ via_write_reg_mask(VIACR, 0xFD, 0, 0x80); /* VX900 hw scale on IGA2 */ viafb_write_regx(scaling_parameters, ARRAY_SIZE(scaling_parameters)); -- cgit v1.2.3-59-g8ed1b