Mine

static int blizzard_set_rotate(int angle){        u32 l;        struct omapfb_device *fbdev = blizzard.fbdev;        l = blizzard_read_reg(BLIZZARD_POWER_SAVE);        if (l & 0x03) {                return -EINVAL;        }        l = blizzard_read_reg(BLIZZARD_PANEL_CONFIGURATION);        l &= ~0x03;        switch (angle) {        case 0:                l = l | 0x00;                break;        case 90:                l = l | 0x03;                break;        case 180:                l = l | 0x02;                break;        case 270:                l = l | 0x01;                break;        default:                return -EINVAL;        }        blizzard_write_reg(BLIZZARD_PANEL_CONFIGURATION, l);        if (l & 0x01) {                blizzard.auto_update_window.width = fbdev->panel->y_res;                blizzard.auto_update_window.height = fbdev->panel->x_res;                blizzard.auto_update_window.out_width = fbdev->panel->y_res;                blizzard.auto_update_window.out_height = fbdev->panel->x_res;                blizzard.screen_width = fbdev->panel->y_res;                blizzard.screen_height = fbdev->panel->x_res;        }        else {                blizzard.auto_update_window.width = fbdev->panel->x_res;                blizzard.auto_update_window.height = fbdev->panel->y_res;                blizzard.auto_update_window.out_width = fbdev->panel->x_res;                blizzard.auto_update_window.out_height = fbdev->panel->y_res;                blizzard.screen_width = fbdev->panel->x_res;                blizzard.screen_height = fbdev->panel->y_res;        }        return 0;}