[PATCH 4/5] viafb: fix IGA1 modesetting on VX900
flat view
STALE5354d
From: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Date: 2012-02-22 18:33:38
Also in:
lkml, stable
Subsystem:
framebuffer layer, the rest · Maintainers:
Helge Deller, Linus Torvalds
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 <FlorianSchandinat@gmx.de> Cc: stable@vger.kernel.org --- drivers/video/via/hw.c | 3 +++ 1 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/drivers/video/via/hw.c b/drivers/video/via/hw.c
index e6e7a8f..376af05 100644
--- a/drivers/video/via/hw.c
+++ b/drivers/video/via/hw.c@@ -1804,6 +1804,9 @@ 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));
--
1.7.9