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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
commit | 5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 (patch) | |
tree | a94efe259b9009378be6d90eb30d2b019d95c194 /Documentation/devicetree/bindings/media/s5p-mfc.txt | |
parent | Initial commit. (diff) | |
download | linux-upstream.tar.xz linux-upstream.zip |
Adding upstream version 5.10.209.upstream/5.10.209upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | Documentation/devicetree/bindings/media/s5p-mfc.txt | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/media/s5p-mfc.txt b/Documentation/devicetree/bindings/media/s5p-mfc.txt new file mode 100644 index 000000000..aa54c8159 --- /dev/null +++ b/Documentation/devicetree/bindings/media/s5p-mfc.txt @@ -0,0 +1,76 @@ +* Samsung Multi Format Codec (MFC) + +Multi Format Codec (MFC) is the IP present in Samsung SoCs which +supports high resolution decoding and encoding functionalities. +The MFC device driver is a v4l2 driver which can encode/decode +video raw/elementary streams and has support for all popular +video codecs. + +Required properties: + - compatible : value should be either one among the following + (a) "samsung,mfc-v5" for MFC v5 present in Exynos4 SoCs + (b) "samsung,mfc-v6" for MFC v6 present in Exynos5 SoCs + (c) "samsung,mfc-v7" for MFC v7 present in Exynos5420 SoC + (d) "samsung,mfc-v8" for MFC v8 present in Exynos5800 SoC + (e) "samsung,exynos5433-mfc" for MFC v8 present in Exynos5433 SoC + (f) "samsung,mfc-v10" for MFC v10 present in Exynos7880 SoC + + - reg : Physical base address of the IP registers and length of memory + mapped region. + + - interrupts : MFC interrupt number to the CPU. + - clocks : from common clock binding: handle to mfc clock. + - clock-names : from common clock binding: must contain "mfc", + corresponding to entry in the clocks property. + +Optional properties: + - power-domains : power-domain property defined with a phandle + to respective power domain. + - memory-region : from reserved memory binding: phandles to two reserved + memory regions, first is for "left" mfc memory bus interfaces, + second if for the "right" mfc memory bus, used when no SYSMMU + support is available; used only by MFC v5 present in Exynos4 SoCs + +Obsolete properties: + - samsung,mfc-r, samsung,mfc-l : support removed, please use memory-region + property instead + + +Example: +SoC specific DT entry: + +mfc: codec@13400000 { + compatible = "samsung,mfc-v5"; + reg = <0x13400000 0x10000>; + interrupts = <0 94 0>; + power-domains = <&pd_mfc>; + clocks = <&clock 273>; + clock-names = "mfc"; +}; + +Reserved memory specific DT entry for given board (see reserved memory binding +for more information): + +reserved-memory { + #address-cells = <1>; + #size-cells = <1>; + ranges; + + mfc_left: region@51000000 { + compatible = "shared-dma-pool"; + no-map; + reg = <0x51000000 0x800000>; + }; + + mfc_right: region@43000000 { + compatible = "shared-dma-pool"; + no-map; + reg = <0x43000000 0x800000>; + }; +}; + +Board specific DT entry: + +codec@13400000 { + memory-region = <&mfc_left>, <&mfc_right>; +}; |