diff mbox series

dt-bindings: media: mediatek,vcodec: Fix addressing cell sizes

Message ID 20220301233501.2110047-1-robh@kernel.org (mailing list archive)
State New, archived
Headers show
Series dt-bindings: media: mediatek,vcodec: Fix addressing cell sizes | expand

Commit Message

Rob Herring (Arm) March 1, 2022, 11:35 p.m. UTC 
'dma-ranges' in the example is written for cell sizes of 2 cells, but
the schema and example specify sizes of 1 cell. As the h/w has a bus
address of >32-bits, cell sizes of 2 is correct. Update the schema's
'#address-cells' and '#size-cells' to be 2 and adjust the example
throughout.

There's no error currently because dtc only checks 'dma-ranges' is a
correct multiple number of cells (3) and the schema checking is based on
bracketing of entries.

Signed-off-by: Rob Herring <robh@kernel.org>
---
I noticed the driver is checking 'dma-ranges' itself. That's generally
wrong as the core code should be configuring bus dma masks
automatically.
---
 .../media/mediatek,vcodec-subdev-decoder.yaml | 122 +++++++++---------
 1 file changed, 64 insertions(+), 58 deletions(-)

Comments

Rob Herring (Arm) March 23, 2022, 2:05 p.m. UTC | #1 
On Tue, Mar 1, 2022 at 5:35 PM Rob Herring <robh@kernel.org> wrote:
>
> 'dma-ranges' in the example is written for cell sizes of 2 cells, but
> the schema and example specify sizes of 1 cell. As the h/w has a bus
> address of >32-bits, cell sizes of 2 is correct. Update the schema's
> '#address-cells' and '#size-cells' to be 2 and adjust the example
> throughout.
>
> There's no error currently because dtc only checks 'dma-ranges' is a
> correct multiple number of cells (3) and the schema checking is based on
> bracketing of entries.
>
> Signed-off-by: Rob Herring <robh@kernel.org>
> ---
> I noticed the driver is checking 'dma-ranges' itself. That's generally
> wrong as the core code should be configuring bus dma masks
> automatically.
> ---
>  .../media/mediatek,vcodec-subdev-decoder.yaml | 122 +++++++++---------
>  1 file changed, 64 insertions(+), 58 deletions(-)

Can this fix be applied for rc1? Still failing in linux-next.

Rob
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/media/mediatek,vcodec-subdev-decoder.yaml b/Documentation/devicetree/bindings/media/mediatek,vcodec-subdev-decoder.yaml
index d587fc3e39fb..7687be0f50aa 100644
--- a/Documentation/devicetree/bindings/media/mediatek,vcodec-subdev-decoder.yaml
+++ b/Documentation/devicetree/bindings/media/mediatek,vcodec-subdev-decoder.yaml
@@ -72,10 +72,10 @@  properties:
       Describes the physical address space of IOMMU maps to memory.
 
   "#address-cells":
-    const: 1
+    const: 2
 
   "#size-cells":
-    const: 1
+    const: 2
 
   ranges: true
 
@@ -205,61 +205,67 @@  examples:
     #include <dt-bindings/clock/mt8192-clk.h>
     #include <dt-bindings/power/mt8192-power.h>
 
-    video-codec@16000000 {
-        compatible = "mediatek,mt8192-vcodec-dec";
-        mediatek,scp = <&scp>;
-        iommus = <&iommu0 M4U_PORT_L4_VDEC_MC_EXT>;
-        dma-ranges = <0x1 0x0 0x0 0x40000000 0x0 0xfff00000>;
-        #address-cells = <1>;
-        #size-cells = <1>;
-        ranges = <0 0x16000000 0x40000>;
-        reg = <0x16000000 0x1000>;		/* VDEC_SYS */
-        vcodec-lat@10000 {
-            compatible = "mediatek,mtk-vcodec-lat";
-            reg = <0x10000 0x800>;
-            interrupts = <GIC_SPI 426 IRQ_TYPE_LEVEL_HIGH 0>;
-            iommus = <&iommu0 M4U_PORT_L5_VDEC_LAT0_VLD_EXT>,
-                <&iommu0 M4U_PORT_L5_VDEC_LAT0_VLD2_EXT>,
-                <&iommu0 M4U_PORT_L5_VDEC_LAT0_AVC_MV_EXT>,
-                <&iommu0 M4U_PORT_L5_VDEC_LAT0_PRED_RD_EXT>,
-                <&iommu0 M4U_PORT_L5_VDEC_LAT0_TILE_EXT>,
-                <&iommu0 M4U_PORT_L5_VDEC_LAT0_WDMA_EXT>,
-                <&iommu0 M4U_PORT_L5_VDEC_LAT0_RG_CTRL_DMA_EXT>,
-                <&iommu0 M4U_PORT_L5_VDEC_UFO_ENC_EXT>;
-            clocks = <&topckgen CLK_TOP_VDEC_SEL>,
-                <&vdecsys_soc CLK_VDEC_SOC_VDEC>,
-                <&vdecsys_soc CLK_VDEC_SOC_LAT>,
-                <&vdecsys_soc CLK_VDEC_SOC_LARB1>,
-                <&topckgen CLK_TOP_MAINPLL_D4>;
-            clock-names = "sel", "soc-vdec", "soc-lat", "vdec", "top";
-            assigned-clocks = <&topckgen CLK_TOP_VDEC_SEL>;
-            assigned-clock-parents = <&topckgen CLK_TOP_MAINPLL_D4>;
-            power-domains = <&spm MT8192_POWER_DOMAIN_VDEC>;
-        };
-
-        vcodec-core@25000 {
-            compatible = "mediatek,mtk-vcodec-core";
-            reg = <0x25000 0x1000>;
-            interrupts = <GIC_SPI 425 IRQ_TYPE_LEVEL_HIGH 0>;
-            iommus = <&iommu0 M4U_PORT_L4_VDEC_MC_EXT>,
-                <&iommu0 M4U_PORT_L4_VDEC_UFO_EXT>,
-                <&iommu0 M4U_PORT_L4_VDEC_PP_EXT>,
-                <&iommu0 M4U_PORT_L4_VDEC_PRED_RD_EXT>,
-                <&iommu0 M4U_PORT_L4_VDEC_PRED_WR_EXT>,
-                <&iommu0 M4U_PORT_L4_VDEC_PPWRAP_EXT>,
-                <&iommu0 M4U_PORT_L4_VDEC_TILE_EXT>,
-                <&iommu0 M4U_PORT_L4_VDEC_VLD_EXT>,
-                <&iommu0 M4U_PORT_L4_VDEC_VLD2_EXT>,
-                <&iommu0 M4U_PORT_L4_VDEC_AVC_MV_EXT>,
-                <&iommu0 M4U_PORT_L4_VDEC_RG_CTRL_DMA_EXT>;
-            clocks = <&topckgen CLK_TOP_VDEC_SEL>,
-                <&vdecsys CLK_VDEC_VDEC>,
-                <&vdecsys CLK_VDEC_LAT>,
-                <&vdecsys CLK_VDEC_LARB1>,
-                <&topckgen CLK_TOP_MAINPLL_D4>;
-            clock-names = "sel", "soc-vdec", "soc-lat", "vdec", "top";
-            assigned-clocks = <&topckgen CLK_TOP_VDEC_SEL>;
-            assigned-clock-parents = <&topckgen CLK_TOP_MAINPLL_D4>;
-            power-domains = <&spm MT8192_POWER_DOMAIN_VDEC2>;
+    bus@16000000 {
+        #address-cells = <2>;
+        #size-cells = <2>;
+        ranges = <0 0x16000000 0x16000000 0 0x40000>;
+
+        video-codec@16000000 {
+            compatible = "mediatek,mt8192-vcodec-dec";
+            mediatek,scp = <&scp>;
+            iommus = <&iommu0 M4U_PORT_L4_VDEC_MC_EXT>;
+            dma-ranges = <0x1 0x0 0x0 0x40000000 0x0 0xfff00000>;
+            #address-cells = <2>;
+            #size-cells = <2>;
+            ranges = <0 0 0 0x16000000 0 0x40000>;
+            reg = <0 0x16000000 0 0x1000>;		/* VDEC_SYS */
+            vcodec-lat@10000 {
+                compatible = "mediatek,mtk-vcodec-lat";
+                reg = <0 0x10000 0 0x800>;
+                interrupts = <GIC_SPI 426 IRQ_TYPE_LEVEL_HIGH 0>;
+                iommus = <&iommu0 M4U_PORT_L5_VDEC_LAT0_VLD_EXT>,
+                    <&iommu0 M4U_PORT_L5_VDEC_LAT0_VLD2_EXT>,
+                    <&iommu0 M4U_PORT_L5_VDEC_LAT0_AVC_MV_EXT>,
+                    <&iommu0 M4U_PORT_L5_VDEC_LAT0_PRED_RD_EXT>,
+                    <&iommu0 M4U_PORT_L5_VDEC_LAT0_TILE_EXT>,
+                    <&iommu0 M4U_PORT_L5_VDEC_LAT0_WDMA_EXT>,
+                    <&iommu0 M4U_PORT_L5_VDEC_LAT0_RG_CTRL_DMA_EXT>,
+                    <&iommu0 M4U_PORT_L5_VDEC_UFO_ENC_EXT>;
+                clocks = <&topckgen CLK_TOP_VDEC_SEL>,
+                    <&vdecsys_soc CLK_VDEC_SOC_VDEC>,
+                    <&vdecsys_soc CLK_VDEC_SOC_LAT>,
+                    <&vdecsys_soc CLK_VDEC_SOC_LARB1>,
+                    <&topckgen CLK_TOP_MAINPLL_D4>;
+                clock-names = "sel", "soc-vdec", "soc-lat", "vdec", "top";
+                assigned-clocks = <&topckgen CLK_TOP_VDEC_SEL>;
+                assigned-clock-parents = <&topckgen CLK_TOP_MAINPLL_D4>;
+                power-domains = <&spm MT8192_POWER_DOMAIN_VDEC>;
+            };
+
+            vcodec-core@25000 {
+                compatible = "mediatek,mtk-vcodec-core";
+                reg = <0 0x25000 0 0x1000>;
+                interrupts = <GIC_SPI 425 IRQ_TYPE_LEVEL_HIGH 0>;
+                iommus = <&iommu0 M4U_PORT_L4_VDEC_MC_EXT>,
+                    <&iommu0 M4U_PORT_L4_VDEC_UFO_EXT>,
+                    <&iommu0 M4U_PORT_L4_VDEC_PP_EXT>,
+                    <&iommu0 M4U_PORT_L4_VDEC_PRED_RD_EXT>,
+                    <&iommu0 M4U_PORT_L4_VDEC_PRED_WR_EXT>,
+                    <&iommu0 M4U_PORT_L4_VDEC_PPWRAP_EXT>,
+                    <&iommu0 M4U_PORT_L4_VDEC_TILE_EXT>,
+                    <&iommu0 M4U_PORT_L4_VDEC_VLD_EXT>,
+                    <&iommu0 M4U_PORT_L4_VDEC_VLD2_EXT>,
+                    <&iommu0 M4U_PORT_L4_VDEC_AVC_MV_EXT>,
+                    <&iommu0 M4U_PORT_L4_VDEC_RG_CTRL_DMA_EXT>;
+                clocks = <&topckgen CLK_TOP_VDEC_SEL>,
+                    <&vdecsys CLK_VDEC_VDEC>,
+                    <&vdecsys CLK_VDEC_LAT>,
+                    <&vdecsys CLK_VDEC_LARB1>,
+                    <&topckgen CLK_TOP_MAINPLL_D4>;
+                clock-names = "sel", "soc-vdec", "soc-lat", "vdec", "top";
+                assigned-clocks = <&topckgen CLK_TOP_VDEC_SEL>;
+                assigned-clock-parents = <&topckgen CLK_TOP_MAINPLL_D4>;
+                power-domains = <&spm MT8192_POWER_DOMAIN_VDEC2>;
+            };
         };
     };