video: simplefb: add rotation support
It introduces the way to rotate the screen for boards with rotated screen.
Signed-off-by: Takumi Sueda <puhitaku@gmail.com>
diff --git a/drivers/video/simplefb.c b/drivers/video/simplefb.c
index 2b0d883..235ec76 100644
--- a/drivers/video/simplefb.c
+++ b/drivers/video/simplefb.c
@@ -43,7 +43,11 @@
uc_priv->xsize = fdtdec_get_uint(blob, node, "width", 0);
uc_priv->ysize = fdtdec_get_uint(blob, node, "height", 0);
- uc_priv->rot = 0;
+ uc_priv->rot = fdtdec_get_uint(blob, node, "rot", 0);
+ if (uc_priv->rot > 3) {
+ log_debug("%s: invalid rot\n", __func__);
+ return log_msg_ret("rot", -EINVAL);
+ }
format = fdt_getprop(blob, node, "format", NULL);
debug("%s: %dx%d@%s\n", __func__, uc_priv->xsize, uc_priv->ysize, format);