Unverified Commit 317fb4c3 authored by Mark Brown's avatar Mark Brown
Browse files

support for amlogic the new SPI IP 

Merge series from Xianwei Zhao <xianwei.zhao@amlogic.com>:

Introduced support for the new SPI IP (SPISG). The SPISG is
a communication-oriented SPI controller from Amlogic,supporting
three operation modes: PIO, block DMA, and scatter-gather DMA.

Add the drivers and device tree bindings corresponding to the SPISG.
parents 1f590fa4 0ef2a977

Documentation/devicetree/bindings/spi/amlogic,a4-spisg.yaml

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

# Copyright (C) 2025 Amlogic, Inc. All rights reserved

%YAML 1.2

---

$id: http://devicetree.org/schemas/spi/amlogic,a4-spisg.yaml#

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



title: Amlogic SPI Scatter-Gather Controller



maintainers:

  - Xianwei Zhao <xianwei.zhao@amlogic.com>

  - Sunny Luo <sunny.luo@amlogic.com>



allOf:

  - $ref: spi-controller.yaml#



properties:

  compatible:

    const: amlogic,a4-spisg



  reg:

    maxItems: 1



  interrupts:

    maxItems: 1



  clocks:

    maxItems: 2



  clock-names:

    items:

      - const: core

      - const: pclk



  resets:

    maxItems: 1



required:

  - compatible

  - reg

  - interrupts

  - clocks

  - clock-names



unevaluatedProperties: false



examples:

  - |

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

    spi@50000 {

        compatible = "amlogic,a4-spisg";

        reg = <0x50000 0x38>;

        interrupts = <GIC_SPI 183 IRQ_TYPE_LEVEL_HIGH>;

        clocks = <&clkc 37>,

                 <&clkc 93>;

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

        #address-cells = <1>;

        #size-cells = <0>;

    };

MAINTAINERS

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@@ -1306,6 +1306,15 @@ S: Maintained 
F:	Documentation/devicetree/bindings/rtc/amlogic,a4-rtc.yaml

F:	drivers/rtc/rtc-amlogic-a4.c









AMLOGIC SPISG DRIVER









M:	Sunny Luo <sunny.luo@amlogic.com>









M:	Xianwei Zhao <xianwei.zhao@amlogic.com>









L:	linux-amlogic@lists.infradead.org









L:	linux-spi@vger.kernel.org









S:	Maintained









F:	Documentation/devicetree/bindings/spi/amlogic,a4-spisg.yaml









F:	drivers/spi/spi-amlogic-spisg.c

















AMPHENOL CHIPCAP 2 DRIVER









M:	Javier Carrasco <javier.carrasco.cruz@gmail.com>









L:	linux-hwmon@vger.kernel.org
































drivers/spi/Kconfig



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@@ -99,6 +99,15 @@ config SPI_AMLOGIC_SPIFC_A1







	  This enables master mode support for the SPIFC (SPI flash









	  controller) available in Amlogic A1 (A113L SoC).



















config SPI_AMLOGIC_SPISG









	tristate "Amlogic SPISG controller"









	depends on COMMON_CLK









	depends on ARCH_MESON || COMPILE_TEST









	help









	  This enables master mode support for the SPISG (SPI scatter-gather









	  communication controller), which is available on platforms such as









	  Amlogic A4 SoCs.



















config SPI_APPLE









	tristate "Apple SoC SPI Controller platform driver"









	depends on ARCH_APPLE || COMPILE_TEST
































drivers/spi/Makefile



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@@ -20,6 +20,7 @@ obj-$(CONFIG_SPI_ALTERA)		+= spi-altera-platform.o







obj-$(CONFIG_SPI_ALTERA_CORE)		+= spi-altera-core.o









obj-$(CONFIG_SPI_ALTERA_DFL)		+= spi-altera-dfl.o









obj-$(CONFIG_SPI_AMLOGIC_SPIFC_A1)	+= spi-amlogic-spifc-a1.o









obj-$(CONFIG_SPI_AMLOGIC_SPISG)		+= spi-amlogic-spisg.o









obj-$(CONFIG_SPI_APPLE)			+= spi-apple.o









obj-$(CONFIG_SPI_AR934X)		+= spi-ar934x.o









obj-$(CONFIG_SPI_ARMADA_3700)		+= spi-armada-3700.o
































drivers/spi/spi-amlogic-spisg.c
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