| Message ID | 20230417-ux500-dma40-cleanup-v1-1-b26324956e47@linaro.org |
|---|---|
| State | Superseded |
| Headers | show |
| Series | DMA40 SRAM refactoring and cleanup | expand |
On 17/04/2023 09:55, Linus Walleij wrote: > Extend the DMA40 bindings so that we can pass two SRAM > segments as phandles instead of directly referring to the > memory address in the second reg cell. This enables more > granular control over the SRAM, and adds the optiona LCLA > SRAM segment as well. > > Deprecate the old way of passing LCPA as a second reg cell, > make sram compulsory. > > Signed-off-by: Linus Walleij <linus.walleij@linaro.org> > --- > .../devicetree/bindings/dma/stericsson,dma40.yaml | 35 +++++++++++++++++----- > 1 file changed, 27 insertions(+), 8 deletions(-) > > diff --git a/Documentation/devicetree/bindings/dma/stericsson,dma40.yaml b/Documentation/devicetree/bindings/dma/stericsson,dma40.yaml > index 64845347f44d..4fe0df937171 100644 > --- a/Documentation/devicetree/bindings/dma/stericsson,dma40.yaml > +++ b/Documentation/devicetree/bindings/dma/stericsson,dma40.yaml > @@ -112,14 +112,23 @@ properties: > - const: stericsson,dma40 > > reg: > - items: > - - description: DMA40 memory base > - - description: LCPA memory base > + oneOf: > + - items: > + - description: DMA40 memory base > + - items: > + - description: DMA40 memory base > + - description: LCPA memory base, deprecated, use eSRAM pool instead > + deprecated: true > + > > reg-names: > - items: > - - const: base > - - const: lcpa > + oneOf: > + - items: > + - const: base > + - items: > + - const: base > + - const: lcpa > + deprecated: true > > interrupts: > maxItems: 1 > @@ -127,6 +136,14 @@ properties: > clocks: > maxItems: 1 > > + sram: > + $ref: '/schemas/types.yaml#/definitions/phandle-array' Drop quotes > + items: Drop items... > + maxItems: 2 and this... > + description: > + List of phandles for the SRAM used by the DMA40 block, the first > + phandle is the LCPA memory, the second is the LCLA memory. and all this, to write everything like: items: - description: LCPA SRAM memory - description: .... > + > Best regards, Krzysztof
On Mon, Apr 17, 2023 at 09:55:46AM +0200, Linus Walleij wrote: > Extend the DMA40 bindings so that we can pass two SRAM > segments as phandles instead of directly referring to the > memory address in the second reg cell. This enables more > granular control over the SRAM, and adds the optiona LCLA > SRAM segment as well. > > Deprecate the old way of passing LCPA as a second reg cell, > make sram compulsory. > > Signed-off-by: Linus Walleij <linus.walleij@linaro.org> > --- > .../devicetree/bindings/dma/stericsson,dma40.yaml | 35 +++++++++++++++++----- > 1 file changed, 27 insertions(+), 8 deletions(-) > > diff --git a/Documentation/devicetree/bindings/dma/stericsson,dma40.yaml b/Documentation/devicetree/bindings/dma/stericsson,dma40.yaml > index 64845347f44d..4fe0df937171 100644 > --- a/Documentation/devicetree/bindings/dma/stericsson,dma40.yaml > +++ b/Documentation/devicetree/bindings/dma/stericsson,dma40.yaml > @@ -112,14 +112,23 @@ properties: > - const: stericsson,dma40 > > reg: > - items: > - - description: DMA40 memory base > - - description: LCPA memory base > + oneOf: > + - items: > + - description: DMA40 memory base > + - items: > + - description: DMA40 memory base > + - description: LCPA memory base, deprecated, use eSRAM pool instead > + deprecated: true > + > > reg-names: > - items: > - - const: base > - - const: lcpa > + oneOf: > + - items: > + - const: base > + - items: > + - const: base > + - const: lcpa > + deprecated: true > > interrupts: > maxItems: 1 > @@ -127,6 +136,14 @@ properties: > clocks: > maxItems: 1 > > + sram: > + $ref: '/schemas/types.yaml#/definitions/phandle-array' Drop quotes. > + items: > + maxItems: 2 phandle-array really means phandle+args array. So the inner size is 1 plus number of arg cells. Since you have no arg cells, that would be: maxItems: 2 items: maxItems: 1 > + description: > + List of phandles for the SRAM used by the DMA40 block, the first > + phandle is the LCPA memory, the second is the LCLA memory. > + > memcpy-channels: > $ref: /schemas/types.yaml#/definitions/uint32-array > description: Array of u32 elements indicating which channels on the DMA > @@ -138,6 +155,7 @@ required: > - reg > - interrupts > - clocks > + - sram > - memcpy-channels > > additionalProperties: false > @@ -149,8 +167,9 @@ examples: > #include <dt-bindings/mfd/dbx500-prcmu.h> > dma-controller@801c0000 { > compatible = "stericsson,db8500-dma40", "stericsson,dma40"; > - reg = <0x801c0000 0x1000>, <0x40010000 0x800>; > - reg-names = "base", "lcpa"; > + reg = <0x801c0000 0x1000>; > + reg-names = "base"; > + sram = <&lcpa>, <&lcla>; > interrupts = <GIC_SPI 25 IRQ_TYPE_LEVEL_HIGH>; > #dma-cells = <3>; > memcpy-channels = <56 57 58 59 60>; > > -- > 2.39.2 >
diff --git a/Documentation/devicetree/bindings/dma/stericsson,dma40.yaml b/Documentation/devicetree/bindings/dma/stericsson,dma40.yaml index 64845347f44d..4fe0df937171 100644 --- a/Documentation/devicetree/bindings/dma/stericsson,dma40.yaml +++ b/Documentation/devicetree/bindings/dma/stericsson,dma40.yaml @@ -112,14 +112,23 @@ properties: - const: stericsson,dma40 reg: - items: - - description: DMA40 memory base - - description: LCPA memory base + oneOf: + - items: + - description: DMA40 memory base + - items: + - description: DMA40 memory base + - description: LCPA memory base, deprecated, use eSRAM pool instead + deprecated: true + reg-names: - items: - - const: base - - const: lcpa + oneOf: + - items: + - const: base + - items: + - const: base + - const: lcpa + deprecated: true interrupts: maxItems: 1 @@ -127,6 +136,14 @@ properties: clocks: maxItems: 1 + sram: + $ref: '/schemas/types.yaml#/definitions/phandle-array' + items: + maxItems: 2 + description: + List of phandles for the SRAM used by the DMA40 block, the first + phandle is the LCPA memory, the second is the LCLA memory. + memcpy-channels: $ref: /schemas/types.yaml#/definitions/uint32-array description: Array of u32 elements indicating which channels on the DMA @@ -138,6 +155,7 @@ required: - reg - interrupts - clocks + - sram - memcpy-channels additionalProperties: false @@ -149,8 +167,9 @@ examples: #include <dt-bindings/mfd/dbx500-prcmu.h> dma-controller@801c0000 { compatible = "stericsson,db8500-dma40", "stericsson,dma40"; - reg = <0x801c0000 0x1000>, <0x40010000 0x800>; - reg-names = "base", "lcpa"; + reg = <0x801c0000 0x1000>; + reg-names = "base"; + sram = <&lcpa>, <&lcla>; interrupts = <GIC_SPI 25 IRQ_TYPE_LEVEL_HIGH>; #dma-cells = <3>; memcpy-channels = <56 57 58 59 60>;
Extend the DMA40 bindings so that we can pass two SRAM segments as phandles instead of directly referring to the memory address in the second reg cell. This enables more granular control over the SRAM, and adds the optiona LCLA SRAM segment as well. Deprecate the old way of passing LCPA as a second reg cell, make sram compulsory. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> --- .../devicetree/bindings/dma/stericsson,dma40.yaml | 35 +++++++++++++++++----- 1 file changed, 27 insertions(+), 8 deletions(-)