Unverified Commit f525faca authored by Mark Brown's avatar Mark Brown
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Merge series "Add driver for Microchip S/PDIF RX" from Codrin Ciubotariu... 

Merge series "Add driver for Microchip S/PDIF RX" from Codrin Ciubotariu <codrin.ciubotariu@microchip.com>:

The Sony/Philips Digital Interface Receiver (SPDIFRX) is a serial port
compliant with the IEC-60958 standard. Among its caracteristics, we
mention the following:
 - SPDIF/AES-EBU Compatible Serial Port
 - 32 Samples FIFO
 - Data Width Configurable to 24 bits, 20 bits or 16 bits
 - Packed and Unpacked Data Support for System Memory Optimization
 - Line State Events Report and Source of Interrupt
 - Line Error Rate Report
 - Full Memory Map of 192 bits for Channel 1 and Channel 2 Status and
   User Data
 - First 32-bit Status A, Status B Change Report and Source of Interrupt
 - Line Digital Filter
 - Register Write Protection
 - Abnormal Software Access and Internal Sequencer Integrity Check Reports

This interface is available in Microchip's SAMA7G5 SoC.

Codrin Ciubotariu (2):
  dt-bindings: sound: add DT bindings for Microchip S/PDIF RX Controller
  ASoC: mchp-spdifrx: add driver for SPDIF RX

 .../bindings/sound/mchp,spdifrx.yaml          |  73 ++
 sound/soc/atmel/Kconfig                       |  13 +
 sound/soc/atmel/Makefile                      |   2 +
 sound/soc/atmel/mchp-spdifrx.c                | 954 ++++++++++++++++++
 4 files changed, 1042 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/sound/mchp,spdifrx.yaml
 create mode 100644 sound/soc/atmel/mchp-spdifrx.c

--
2.25.1
parents 98bd2b50 80db8751

Documentation/devicetree/bindings/sound/mchp,spdifrx.yaml

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# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)

%YAML 1.2

---

$id: http://devicetree.org/schemas/sound/mchp,spdifrx.yaml#

$schema: http://devicetree.org/meta-schemas/core.yaml#



title: Microchip S/PDIF Rx Controller Device Tree Bindings



maintainers:

  - Codrin Ciubotariu <codrin.ciubotariu@microchip.com>



description:

        The Microchip Sony/Philips Digital Interface Receiver is a

        serial port compliant with the IEC-60958 standard.



properties:

  "#sound-dai-cells":

    const: 0



  compatible:

    const: microchip,sama7g5-spdifrx



  reg:

    maxItems: 1



  interrupts:

    maxItems: 1



  clocks:

    items:

      - description: Peripheral Bus Clock

      - description: Generic Clock



  clock-names:

    items:

      - const: pclk

      - const: gclk



  dmas:

    description: RX DMA Channel

    maxItems: 1



  dma-names:

    const: rx



required:

  - "#sound-dai-cells"

  - compatible

  - reg

  - interrupts

  - clocks

  - clock-names

  - dmas

  - dma-names



additionalProperties: false



examples:

  - |

    #include <dt-bindings/clock/at91.h>

    #include <dt-bindings/dma/at91.h>

    #include <dt-bindings/interrupt-controller/arm-gic.h>



    spdifrx: spdifrx@e1614000 {

        #sound-dai-cells = <0>;

        compatible = "microchip,sama7g5-spdifrx";

        reg = <0xe1614000 0x4000>;

        interrupts = <GIC_SPI 84 IRQ_TYPE_LEVEL_HIGH>;

        dmas = <&dma0 AT91_XDMAC_DT_PERID(49)>;

        dma-names = "rx";

        clocks = <&pmc PMC_TYPE_PERIPHERAL 84>, <&pmc PMC_TYPE_GCK 84>;

        clock-names = "pclk", "gclk";

    };

sound/soc/atmel/Kconfig

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@@ -144,4 +144,17 @@ config SND_MCHP_SOC_SPDIFTX 


	  This S/PDIF TX driver is compliant with IEC-60958 standard and

	  includes programable User Data and Channel Status fields.



config SND_MCHP_SOC_SPDIFRX

	tristate "Microchip ASoC driver for boards using S/PDIF RX"

	depends on OF && (ARCH_AT91 || COMPILE_TEST)

	select SND_SOC_GENERIC_DMAENGINE_PCM

	select REGMAP_MMIO

	help

	  Say Y or M if you want to add support for Microchip S/PDIF RX ASoc

	  driver on the following Microchip platforms:

	  - sama7g5



	  This S/PDIF RX driver is compliant with IEC-60958 standard and

	  includes programable User Data and Channel Status fields.

endif

sound/soc/atmel/Makefile

+2 −0
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@@ -6,6 +6,7 @@ snd-soc-atmel_ssc_dai-objs := atmel_ssc_dai.o 
snd-soc-atmel-i2s-objs := atmel-i2s.o

snd-soc-mchp-i2s-mcc-objs := mchp-i2s-mcc.o

snd-soc-mchp-spdiftx-objs := mchp-spdiftx.o

snd-soc-mchp-spdifrx-objs := mchp-spdifrx.o



# pdc and dma need to both be built-in if any user of

# ssc is built-in.
@@ -19,6 +20,7 @@ obj-$(CONFIG_SND_ATMEL_SOC_SSC) += snd-soc-atmel_ssc_dai.o 
obj-$(CONFIG_SND_ATMEL_SOC_I2S) += snd-soc-atmel-i2s.o

obj-$(CONFIG_SND_MCHP_SOC_I2S_MCC) += snd-soc-mchp-i2s-mcc.o

obj-$(CONFIG_SND_MCHP_SOC_SPDIFTX) += snd-soc-mchp-spdiftx.o

obj-$(CONFIG_SND_MCHP_SOC_SPDIFRX) += snd-soc-mchp-spdifrx.o



# AT91 Machine Support

snd-soc-sam9g20-wm8731-objs := sam9g20_wm8731.o

sound/soc/atmel/mchp-spdifrx.c

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