On 02/04/2018 09:40 PM, Simon Glass wrote: > Hi Kever, > > On 4 February 2018 at 00:44, Kever Yang <kever.y...@rock-chips.com> wrote: >> Hi Simon, Philipp, >> >> When I try to convert to live dt, I fount there are many APIs work >> in fdt are missing in live dt, >> >> do you have any suggestion to add these APIs in live dt quickly? I need: >> >> fdtdec_get_addr_size_auto_noparent > dev_read_addr_size() - not having a parent doesn't happen with livetree > >> fdt_alloc_phandle > We don't support changing the live tree yet. > >> fdt_device_is_available > dev_read_enabled() > >> fdt_for_each_subnode > dev_for_each_subnode() > >> fdt_getprop > dev_read_prop() > >> fdt_getprop_u32_default_node > This is an odd function. Can you first check that the property exists, > and then use a dev_read_...() function to read it? > >> fdt_get_named_resource > dev_read_resource_byname() > >> fdt_get_name > dev_read_name() - although I see that the comment is wrong > >> fdt_get_path > Not available but you can add it > >> fdt_get_phandle > Why do you need this?
Most of the APIs are used in this file or other files in this folder, https://github.com/rockchip-linux/u-boot/blob/release/drivers/video/drm/rockchip_display.c It needs to handle quite complicated dts node for display system in rockchip drm display driver(not upstream yet): https://github.com/rockchip-linux/u-boot/blob/release/arch/arm/dts/rk3128.dtsi#L421 https://github.com/rockchip-linux/u-boot/blob/release/arch/arm/dts/rk3126-bnd-d708.dts#L114 Thanks, - Kever > >> fdt_node_depth >> fdt_node_offset_by_phandle >> fdt_node_offset_by_phandle_node > uclass_get_device_by_phandle() or similar? > >> fdt_path_offset > ofnode_path() although it does not return a device. Best avoided. > >> fdt_set_phandle > You can't change the livtree at present. > >> fdt_stringlist_get > dev_read_string_index() > >> fdt_stringlist_search > dev_read_stringlist_search() > >> fdt_subnode_offset > Why do you want that? > >> fdt_supernode_atdepth_offset > This should be found by scanning, generally using separate drivers for > each DT node. > > If you like you could send a patch with the info above, to > doc/driver-model/livetree.txt to help others. > > Regards, > Simon > _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de https://lists.denx.de/listinfo/u-boot
