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authorFlorian Tobias Schandinat <FlorianSchandinat@gmx.de>2011-04-24 00:06:18 +0200
committerFlorian Tobias Schandinat <FlorianSchandinat@gmx.de>2011-04-24 00:06:18 +0200
commit32fab7bcc79ee0b97277627f456c94202858d851 (patch)
treed30502739e60390a2950fd69ec7867542153785f /drivers/video/via/hw.c
parentviafb: fix OLPC DCON refresh rate (diff)
downloadlinux-32fab7bcc79ee0b97277627f456c94202858d851.tar.xz
linux-32fab7bcc79ee0b97277627f456c94202858d851.zip
viafb: fix OLPC XO 1.5 device connection
This patch fixes the devices connected on OLPC. The OLPC panel seems to be connected to DVP1 and LVDS2 for some reasons and if not both are handled correct the display does not work correct or not at all. This patch prevents regressions on the OLPC where it worked by accident but would break in future as the driver did not know the correct devices connected. This might also fix hardware scaling. Hopefully the OLPC is the only device with such a requirement but it will be certainly better to actually know what devices are actually connected and to not work by accident. Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Diffstat (limited to 'drivers/video/via/hw.c')
-rw-r--r--drivers/video/via/hw.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/video/via/hw.c b/drivers/video/via/hw.c
index 980e263f1875..b8f01103f5c5 100644
--- a/drivers/video/via/hw.c
+++ b/drivers/video/via/hw.c
@@ -20,6 +20,7 @@
*/
#include <linux/via-core.h>
+#include <asm/olpc.h>
#include "global.h"
static struct pll_config cle266_pll_config[] = {
@@ -875,6 +876,10 @@ void viafb_set_iga_path(void)
viaparinfo->chip_info->
lvds_chip_info2.output_interface);
}
+
+ /* looks like the OLPC has its display wired to DVP1 and LVDS2 */
+ if (machine_is_olpc())
+ viaparinfo->shared->iga2_devices = VIA_DVP1 | VIA_LVDS2;
}
static void set_color_register(u8 index, u8 red, u8 green, u8 blue)