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| author | Tim Harvey <tharvey@gateworks.com> | 2015-04-08 11:45:39 -0700 |
|---|---|---|
| committer | Stefano Babic <sbabic@denx.de> | 2015-04-22 14:39:06 +0200 |
| commit | 08daa258e6a87c452d242d5e2d667710184156b2 (patch) | |
| tree | b928cd94f00e2e2b40173435fff000ba1f6ae8fe /include/fdt_support.h | |
| parent | 78c5a180871d4337d4cfd41d6739a04b271b2e4d (diff) | |
| download | u-boot-08daa258e6a87c452d242d5e2d667710184156b2.tar.gz | |
fdt: add new fdt_fixup_display function to configure display
Add 'fdt_fixup_display' function to fixup device-tree native-mode property
of display-timings node to select timings for a specific display.
This is useful if a device-tree has configurations for multiple
display timings for undetectable displays.
see kernel Documentation/devicetree/bindings/video/display-timing.txt
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Acked-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'include/fdt_support.h')
| -rw-r--r-- | include/fdt_support.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/include/fdt_support.h b/include/fdt_support.h index ae5e8a3ef6..5d4f28dc78 100644 --- a/include/fdt_support.h +++ b/include/fdt_support.h @@ -47,6 +47,19 @@ int fdt_find_and_setprop(void *fdt, const char *node, const char *prop, const void *val, int len, int create); void fdt_fixup_qe_firmware(void *fdt); +/** + * Update native-mode property of display-timings node to the phandle + * of the timings matching a display by name (case insensitive). + * + * see kernel Documentation/devicetree/bindings/video/display-timing.txt + * + * @param blob FDT blob to update + * @param path path within dt + * @param display name of display timing to match + * @return 0 if ok, or -FDT_ERR_... on error + */ +int fdt_fixup_display(void *blob, const char *path, const char *display); + #if defined(CONFIG_HAS_FSL_DR_USB) || defined(CONFIG_HAS_FSL_MPH_USB) void fdt_fixup_dr_usb(void *blob, bd_t *bd); #else |