summaryrefslogtreecommitdiffstats
path: root/Documentation/devicetree/bindings/media/s5p-mfc.txt
diff options
context:
space:
mode:
authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 10:05:51 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 10:05:51 +0000
commit5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 (patch)
treea94efe259b9009378be6d90eb30d2b019d95c194 /Documentation/devicetree/bindings/media/s5p-mfc.txt
parentInitial commit. (diff)
downloadlinux-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.txt76
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>;
+};