media: dt-bindings: media: mtk-vcodec: Separating mtk vcodec encoder node

Updates binding document since the avc and vp8 hardware encoder in
MT8173 are now separated. Separate "mediatek,mt8173-vcodec-enc" to
"mediatek,mt8173-vcodec-enc-vp8" and "mediatek,mt8173-vcodec-enc".

This patch is not a compatible change, but we must do this modifaction
because MediaTek IOMMU add the device_link between the smi-larb
device and venc_device, if the venc device call the pm_runtime_get_sync,
the smi-larb's pm_runtime_get_sync also be called automatically.

There is a bit of backward compatibility for avc encoder, the avc
encoder device node still has compatible "mediatek,mt8173-vcodec-enc".
Acked-by: Tiffany Lin <tiffany.lin@mediatek.com>
Signed-off-by: Hsin-Yi Wang <hsinyi@chromium.org>
Signed-off-by: Maoguang Meng <maoguang.meng@mediatek.com>
Signed-off-by: Irui Wang <irui.wang@mediatek.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

Documentation/devicetree/bindings/media/mediatek-vcodec.txt

@@ -4,7 +4,9 @@ Mediatek Video Codec is the video codec hw present in Mediatek SoCs which
 supports high resolution encoding and decoding functionalities.
 
 Required properties:
-- compatible : "mediatek,mt8173-vcodec-enc" for MT8173 encoder
+- compatible : must be one of the following string:
+  "mediatek,mt8173-vcodec-enc-vp8" for mt8173 vp8 encoder.
+  "mediatek,mt8173-vcodec-enc" for mt8173 avc encoder.
   "mediatek,mt8183-vcodec-enc" for MT8183 encoder.
   "mediatek,mt8173-vcodec-dec" for MT8173 decoder.
 - reg : Physical base address of the video codec registers and length of
@@ -13,10 +15,10 @@ Required properties:
 - mediatek,larb : must contain the local arbiters in the current Socs.
 - clocks : list of clock specifiers, corresponding to entries in
   the clock-names property.
-- clock-names: encoder must contain "venc_sel_src", "venc_sel",,
-  "venc_lt_sel_src", "venc_lt_sel", decoder must contain "vcodecpll",
-  "univpll_d2", "clk_cci400_sel", "vdec_sel", "vdecpll", "vencpll",
-  "venc_lt_sel", "vdec_bus_clk_src".
+- clock-names: avc encoder must contain "venc_sel", vp8 encoder must
+  contain "venc_lt_sel", decoder must contain "vcodecpll", "univpll_d2",
+  "clk_cci400_sel", "vdec_sel", "vdecpll", "vencpll", "venc_lt_sel",
+  "vdec_bus_clk_src".
 - iommus : should point to the respective IOMMU block with master port as
   argument, see Documentation/devicetree/bindings/iommu/mediatek,iommu.yaml
   for details.
@@ -80,14 +82,10 @@ vcodec_dec: vcodec@16000000 {
     assigned-clock-rates = <0>, <0>, <0>, <1482000000>, <800000000>;
   };
 
-  vcodec_enc: vcodec@18002000 {
+vcodec_enc_avc: vcodec@18002000 {
     compatible = "mediatek,mt8173-vcodec-enc";
-    reg = <0 0x18002000 0 0x1000>,    /*VENC_SYS*/
-          <0 0x19002000 0 0x1000>;    /*VENC_LT_SYS*/
-    interrupts = <GIC_SPI 198 IRQ_TYPE_LEVEL_LOW>,
-		 <GIC_SPI 202 IRQ_TYPE_LEVEL_LOW>;
-    mediatek,larb = <&larb3>,
-		    <&larb5>;
+    reg = <0 0x18002000 0 0x1000>;
+    interrupts = <GIC_SPI 198 IRQ_TYPE_LEVEL_LOW>;
     iommus = <&iommu M4U_PORT_VENC_RCPU>,
              <&iommu M4U_PORT_VENC_REC>,
              <&iommu M4U_PORT_VENC_BSDMA>,
@@ -98,8 +96,20 @@ vcodec_dec: vcodec@16000000 {
              <&iommu M4U_PORT_VENC_REF_LUMA>,
              <&iommu M4U_PORT_VENC_REF_CHROMA>,
              <&iommu M4U_PORT_VENC_NBM_RDMA>,
-             <&iommu M4U_PORT_VENC_NBM_WDMA>,
-             <&iommu M4U_PORT_VENC_RCPU_SET2>,
+             <&iommu M4U_PORT_VENC_NBM_WDMA>;
+    mediatek,larb = <&larb3>;
+    mediatek,vpu = <&vpu>;
+    clocks = <&topckgen CLK_TOP_VENC_SEL>;
+    clock-names = "venc_sel";
+    assigned-clocks = <&topckgen CLK_TOP_VENC_SEL>;
+    assigned-clock-parents = <&topckgen CLK_TOP_VCODECPLL>;
+  };
+
+vcodec_enc_vp8: vcodec@19002000 {
+    compatible = "mediatek,mt8173-vcodec-enc-vp8";
+    reg =  <0 0x19002000 0 0x1000>;	/* VENC_LT_SYS */
+    interrupts = <GIC_SPI 202 IRQ_TYPE_LEVEL_LOW>;
+    iommus = <&iommu M4U_PORT_VENC_RCPU_SET2>,
              <&iommu M4U_PORT_VENC_REC_FRM_SET2>,
              <&iommu M4U_PORT_VENC_BSDMA_SET2>,
              <&iommu M4U_PORT_VENC_SV_COMA_SET2>,
@@ -108,17 +118,10 @@ vcodec_dec: vcodec@16000000 {
              <&iommu M4U_PORT_VENC_CUR_CHROMA_SET2>,
              <&iommu M4U_PORT_VENC_REF_LUMA_SET2>,
              <&iommu M4U_PORT_VENC_REC_CHROMA_SET2>;
+    mediatek,larb = <&larb5>;
     mediatek,vpu = <&vpu>;
-    clocks = <&topckgen CLK_TOP_VENCPLL_D2>,
-             <&topckgen CLK_TOP_VENC_SEL>,
-             <&topckgen CLK_TOP_UNIVPLL1_D2>,
-             <&topckgen CLK_TOP_VENC_LT_SEL>;
-    clock-names = "venc_sel_src",
-                  "venc_sel",
-                  "venc_lt_sel_src",
-                  "venc_lt_sel";
-    assigned-clocks = <&topckgen CLK_TOP_VENC_SEL>,
-                      <&topckgen CLK_TOP_VENC_LT_SEL>;
-    assigned-clock-parents = <&topckgen CLK_TOP_VENCPLL_D2>,
-                             <&topckgen CLK_TOP_UNIVPLL1_D2>;
+    clocks = <&topckgen CLK_TOP_VENC_LT_SEL>;
+    clock-names = "venc_lt_sel";
+    assigned-clocks = <&topckgen CLK_TOP_VENC_LT_SEL>;
+    assigned-clock-parents = <&topckgen CLK_TOP_VCODECPLL_370P5>;
   };