From: Nikita Shubin nikita.shubin@maquefel.me
Add YAML bindings for ep93xx SoC DMA.
Signed-off-by: Nikita Shubin nikita.shubin@maquefel.me --- .../bindings/dma/cirrus,ep9301-dma-m2m.yaml | 72 ++++++++++++ .../bindings/dma/cirrus,ep9301-dma-m2p.yaml | 124 +++++++++++++++++++++ include/dt-bindings/dma/cirrus,ep93xx-dma.h | 26 +++++ include/linux/platform_data/dma-ep93xx.h | 21 +--- 4 files changed, 223 insertions(+), 20 deletions(-)
diff --git a/Documentation/devicetree/bindings/dma/cirrus,ep9301-dma-m2m.yaml b/Documentation/devicetree/bindings/dma/cirrus,ep9301-dma-m2m.yaml new file mode 100644 index 000000000000..c8f57e000865 --- /dev/null +++ b/Documentation/devicetree/bindings/dma/cirrus,ep9301-dma-m2m.yaml @@ -0,0 +1,72 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/dma/cirrus,ep9301-dma-m2m.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Cirrus Logick ep93xx SoC DMA controller + +maintainers: + - Alexander Sverdlin alexander.sverdlin@gmail.com + - Nikita Shubin nikita.shubin@maquefel.me + +properties: + compatible: + oneOf: + - const: cirrus,ep9301-dma-m2m + - items: + - enum: + - cirrus,ep9302-dma-m2m + - cirrus,ep9307-dma-m2m + - cirrus,ep9312-dma-m2m + - cirrus,ep9315-dma-m2m + - const: cirrus,ep9301-dma-m2m + + reg: + items: + - description: m2m0 channel registers + - description: m2m1 channel registers + + clocks: + items: + - description: m2m0 channel gate clock + - description: m2m1 channel gate clock + + clock-names: + items: + - const: m2m0 + - const: m2m1 + + interrupts: + items: + - description: m2m0 channel interrupt + - description: m2m1 channel interrupt + + '#dma-cells': true + +required: + - compatible + - reg + - clocks + - clock-names + - interrupts + +additionalProperties: false + +examples: + - | + #include <dt-bindings/clock/cirrus,ep93xx-clock.h> + dma-controller@80000100 { + compatible = "cirrus,ep9301-dma-m2m"; + reg = <0x80000100 0x0040>, + <0x80000140 0x0040>; + clocks = <&eclk EP93XX_CLK_M2M0>, + <&eclk EP93XX_CLK_M2M1>; + clock-names = "m2m0", "m2m1"; + interrupt-parent = <&vic0>; + interrupts = <17>, <18>; + #dma-cells = <1>; + }; + +... + diff --git a/Documentation/devicetree/bindings/dma/cirrus,ep9301-dma-m2p.yaml b/Documentation/devicetree/bindings/dma/cirrus,ep9301-dma-m2p.yaml new file mode 100644 index 000000000000..e3090421c328 --- /dev/null +++ b/Documentation/devicetree/bindings/dma/cirrus,ep9301-dma-m2p.yaml @@ -0,0 +1,124 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/dma/cirrus,ep9301-dma-m2p.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Cirrus Logick ep93xx SoC M2P DMA controller + +maintainers: + - Alexander Sverdlin alexander.sverdlin@gmail.com + - Nikita Shubin nikita.shubin@maquefel.me + +properties: + compatible: + oneOf: + - const: cirrus,ep9301-dma-m2p + - items: + - enum: + - cirrus,ep9302-dma-m2p + - cirrus,ep9307-dma-m2p + - cirrus,ep9312-dma-m2p + - cirrus,ep9315-dma-m2p + - const: cirrus,ep9301-dma-m2p + + reg: + items: + - description: m2p0 channel registers + - description: m2p1 channel registers + - description: m2p2 channel registers + - description: m2p3 channel registers + - description: m2p4 channel registers + - description: m2p5 channel registers + - description: m2p6 channel registers + - description: m2p7 channel registers + - description: m2p8 channel registers + - description: m2p9 channel registers + + clocks: + items: + - description: m2p0 channel gate clock + - description: m2p1 channel gate clock + - description: m2p2 channel gate clock + - description: m2p3 channel gate clock + - description: m2p4 channel gate clock + - description: m2p5 channel gate clock + - description: m2p6 channel gate clock + - description: m2p7 channel gate clock + - description: m2p8 channel gate clock + - description: m2p9 channel gate clock + + clock-names: + items: + - const: m2p0 + - const: m2p1 + - const: m2p2 + - const: m2p3 + - const: m2p4 + - const: m2p5 + - const: m2p6 + - const: m2p7 + - const: m2p8 + - const: m2p9 + + interrupts: + items: + - description: m2p0 channel interrupt + - description: m2p1 channel interrupt + - description: m2p2 channel interrupt + - description: m2p3 channel interrupt + - description: m2p4 channel interrupt + - description: m2p5 channel interrupt + - description: m2p6 channel interrupt + - description: m2p7 channel interrupt + - description: m2p8 channel interrupt + - description: m2p9 channel interrupt + + '#dma-cells': true + +required: + - compatible + - reg + - clocks + - clock-names + - interrupts + +additionalProperties: false + +examples: + - | + #include <dt-bindings/clock/cirrus,ep93xx-clock.h> + dma-controller@80000000 { + compatible = "cirrus,ep9301-dma-m2p"; + reg = <0x80000000 0x0040>, + <0x80000040 0x0040>, + <0x80000080 0x0040>, + <0x800000c0 0x0040>, + <0x80000240 0x0040>, + <0x80000200 0x0040>, + <0x800002c0 0x0040>, + <0x80000280 0x0040>, + <0x80000340 0x0040>, + <0x80000300 0x0040>; + clocks = <&eclk EP93XX_CLK_M2P0>, + <&eclk EP93XX_CLK_M2P1>, + <&eclk EP93XX_CLK_M2P2>, + <&eclk EP93XX_CLK_M2P3>, + <&eclk EP93XX_CLK_M2P4>, + <&eclk EP93XX_CLK_M2P5>, + <&eclk EP93XX_CLK_M2P6>, + <&eclk EP93XX_CLK_M2P7>, + <&eclk EP93XX_CLK_M2P8>, + <&eclk EP93XX_CLK_M2P9>; + clock-names = "m2p0", "m2p1", + "m2p2", "m2p3", + "m2p4", "m2p5", + "m2p6", "m2p7", + "m2p8", "m2p9"; + interrupt-parent = <&vic0>; + interrupts = <7>, <8>, <9>, <10>, <11>, <12>, <13>, <14>, <15>, <16>; + #dma-cells = <1>; + }; + +... + diff --git a/include/dt-bindings/dma/cirrus,ep93xx-dma.h b/include/dt-bindings/dma/cirrus,ep93xx-dma.h new file mode 100644 index 000000000000..21c7324eb27e --- /dev/null +++ b/include/dt-bindings/dma/cirrus,ep93xx-dma.h @@ -0,0 +1,26 @@ +/* SPDX-License-Identifier: (GPL-2.0 OR MIT) */ +#ifndef DT_BINDINGS_CIRRUS_EP93XX_DMA_H +#define DT_BINDINGS_CIRRUS_EP93XX_DMA_H + +/* + * M2P channels. + * + * Note that these values are also directly used for setting the PPALLOC + * register. + */ +#define EP93XX_DMA_I2S1 0 +#define EP93XX_DMA_I2S2 1 +#define EP93XX_DMA_AAC1 2 +#define EP93XX_DMA_AAC2 3 +#define EP93XX_DMA_AAC3 4 +#define EP93XX_DMA_I2S3 5 +#define EP93XX_DMA_UART1 6 +#define EP93XX_DMA_UART2 7 +#define EP93XX_DMA_UART3 8 +#define EP93XX_DMA_IRDA 9 +/* M2M channels */ +#define EP93XX_DMA_SSP 10 +#define EP93XX_DMA_IDE 11 + +#endif /* DT_BINDINGS_CIRRUS_EP93XX_DMA_H */ + diff --git a/include/linux/platform_data/dma-ep93xx.h b/include/linux/platform_data/dma-ep93xx.h index eb9805bb3fe8..54b41d1468ef 100644 --- a/include/linux/platform_data/dma-ep93xx.h +++ b/include/linux/platform_data/dma-ep93xx.h @@ -5,26 +5,7 @@ #include <linux/types.h> #include <linux/dmaengine.h> #include <linux/dma-mapping.h> - -/* - * M2P channels. - * - * Note that these values are also directly used for setting the PPALLOC - * register. - */ -#define EP93XX_DMA_I2S1 0 -#define EP93XX_DMA_I2S2 1 -#define EP93XX_DMA_AAC1 2 -#define EP93XX_DMA_AAC2 3 -#define EP93XX_DMA_AAC3 4 -#define EP93XX_DMA_I2S3 5 -#define EP93XX_DMA_UART1 6 -#define EP93XX_DMA_UART2 7 -#define EP93XX_DMA_UART3 8 -#define EP93XX_DMA_IRDA 9 -/* M2M channels */ -#define EP93XX_DMA_SSP 10 -#define EP93XX_DMA_IDE 11 +#include <dt-bindings/dma/cirrus,ep93xx-dma.h>
/** * struct ep93xx_dma_data - configuration data for the EP93xx dmaengine