viafb: add initial VX900 support

This patch adds basic support for the new VX900 IGP. Almost everything
that was implemented for other IGPs is expected to work also on VX900
after this patch. The only known issue is that on the CRT output mode
setting does not always work.
It is clear that the possibility for regressions is zero.

A big thanks to VIA Technologies for making this possible and
supporting this work.

Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Cc: Joseph Chan <JosephChan@via.com.tw>
Cc: Jonathan Corbet <corbet@lwn.net>

1 files changed, 3 insertions, 0 deletions

diff --git a/drivers/video/via/accel.c b/drivers/video/via/accel.c
index bc4905366726..3c969cdef0af 100644
--- a/drivers/video/via/accel.c
+++ b/drivers/video/via/accel.c
@@ -343,6 +343,7 @@ int viafb_setup_engine(struct fb_info *info)
                 break;
         case UNICHROME_VX800:
         case UNICHROME_VX855:
+        case UNICHROME_VX900:
                 viapar->shared->hw_bitblt = hw_bitblt_2;
                 break;
         default:
@@ -402,6 +403,7 @@ void viafb_reset_engine(struct viafb_par *viapar)
         case UNICHROME_P4M900:
         case UNICHROME_VX800:
         case UNICHROME_VX855:
+        case UNICHROME_VX900:
                 writel(0x00100000, engine + VIA_REG_CR_TRANSET);
                 writel(0x680A0000, engine + VIA_REG_CR_TRANSPACE);
                 writel(0x02000000, engine + VIA_REG_CR_TRANSPACE);
@@ -438,6 +440,7 @@ void viafb_reset_engine(struct viafb_par *viapar)
         case UNICHROME_P4M900:
         case UNICHROME_VX800:
         case UNICHROME_VX855:
+        case UNICHROME_VX900:
                 vq_start_low |= 0x20000000;
                 vq_end_low |= 0x20000000;
                 vq_high |= 0x20000000;