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path: root/drivers/video/meson/simplefb_common.c
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Diffstat (limited to 'drivers/video/meson/simplefb_common.c')
-rw-r--r--drivers/video/meson/simplefb_common.c29
1 files changed, 29 insertions, 0 deletions
diff --git a/drivers/video/meson/simplefb_common.c b/drivers/video/meson/simplefb_common.c
new file mode 100644
index 0000000000..81782326d4
--- /dev/null
+++ b/drivers/video/meson/simplefb_common.c
@@ -0,0 +1,29 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Common code for Amlogic SimpleFB with pipeline.
+ *
+ * (C) Copyright 2013-2014 Luc Verhaegen <libv@skynet.be>
+ * (C) Copyright 2014-2015 Hans de Goede <hdegoede@redhat.com>
+ * (C) Copyright 2017 Icenowy Zheng <icenowy@aosc.io>
+ */
+
+#include <fdtdec.h>
+
+int meson_simplefb_fdt_match(void *blob, const char *pipeline)
+{
+ int offset, ret;
+
+ /* Find a prefilled simpefb node, matching out pipeline config */
+ offset = fdt_node_offset_by_compatible(blob, -1,
+ "amlogic,simple-framebuffer");
+ while (offset >= 0) {
+ ret = fdt_stringlist_search(blob, offset, "amlogic,pipeline",
+ pipeline);
+ if (ret == 0)
+ break;
+ offset = fdt_node_offset_by_compatible(blob, offset,
+ "amlogic,simple-framebuffer");
+ }
+
+ return offset;
+}