1 files changed, 9 insertions, 0 deletions

diff --git a/drivers/video/savage/savagefb-i2c.c b/drivers/video/savage/savagefb-i2c.c
index ed371c868b3a..b16e6138fdd4 100644
--- a/drivers/video/savage/savagefb-i2c.c
+++ b/drivers/video/savage/savagefb-i2c.c
@@ -181,6 +181,15 @@ void savagefb_create_i2c_busses(struct fb_info *info)
                 par->chan.algo.getscl = prosavage_gpio_getscl;
                 break;
         case FB_ACCEL_SAVAGE4:
+                par->chan.reg = CR_SERIAL1;
+                if (par->pcidev->revision > 1 && !(VGArCR(0xa6, par) & 0x40))
+                        par->chan.reg = CR_SERIAL2;
+                par->chan.ioaddr      = par->mmio.vbase;
+                par->chan.algo.setsda = prosavage_gpio_setsda;
+                par->chan.algo.setscl = prosavage_gpio_setscl;
+                par->chan.algo.getsda = prosavage_gpio_getsda;
+                par->chan.algo.getscl = prosavage_gpio_getscl;
+                break;
         case FB_ACCEL_SAVAGE2000:
                 par->chan.reg         = 0xff20;
                 par->chan.ioaddr      = par->mmio.vbase;