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Thu, 17 Apr 2025 19:03:36 -0700 (PDT) From: Inochi Amaoto To: Michael Turquette , Stephen Boyd , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Chen Wang , Inochi Amaoto , Richard Cochran , Vinod Koul , Alexander Sverdlin , Nikita Shubin , Linus Walleij , Arnd Bergmann Cc: linux-clk@vger.kernel.org, devicetree@vger.kernel.org, sophgo@lists.linux.dev, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, Yixun Lan , Longbin Li Subject: [PATCH v5 2/5] soc: sophgo: sg2044: Add support for SG2044 TOP syscon device Date: Fri, 18 Apr 2025 10:03:21 +0800 Message-ID: <20250418020325.421257-3-inochiama@gmail.com> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20250418020325.421257-1-inochiama@gmail.com> References: <20250418020325.421257-1-inochiama@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" The SG2044 TOP device provide PLL clock function in its area. Add a mfd definition for it. Signed-off-by: Inochi Amaoto --- drivers/soc/Kconfig | 1 + drivers/soc/Makefile | 1 + drivers/soc/sophgo/Kconfig | 21 ++++++++++++++ drivers/soc/sophgo/Makefile | 3 ++ drivers/soc/sophgo/sg2044-topsys.c | 45 ++++++++++++++++++++++++++++++ 5 files changed, 71 insertions(+) create mode 100644 drivers/soc/sophgo/Kconfig create mode 100644 drivers/soc/sophgo/Makefile create mode 100644 drivers/soc/sophgo/sg2044-topsys.c diff --git a/drivers/soc/Kconfig b/drivers/soc/Kconfig index 6a8daeb8c4b9..11e2383c0654 100644 --- a/drivers/soc/Kconfig +++ b/drivers/soc/Kconfig @@ -23,6 +23,7 @@ source "drivers/soc/qcom/Kconfig" source "drivers/soc/renesas/Kconfig" source "drivers/soc/rockchip/Kconfig" source "drivers/soc/samsung/Kconfig" +source "drivers/soc/sophgo/Kconfig" source "drivers/soc/sunxi/Kconfig" source "drivers/soc/tegra/Kconfig" source "drivers/soc/ti/Kconfig" diff --git a/drivers/soc/Makefile b/drivers/soc/Makefile index 2037a8695cb2..0381a0abdec8 100644 --- a/drivers/soc/Makefile +++ b/drivers/soc/Makefile @@ -29,6 +29,7 @@ obj-y +=3D qcom/ obj-y +=3D renesas/ obj-y +=3D rockchip/ obj-$(CONFIG_SOC_SAMSUNG) +=3D samsung/ +obj-y +=3D sophgo/ obj-y +=3D sunxi/ obj-$(CONFIG_ARCH_TEGRA) +=3D tegra/ obj-y +=3D ti/ diff --git a/drivers/soc/sophgo/Kconfig b/drivers/soc/sophgo/Kconfig new file mode 100644 index 000000000000..d97de4a41d5e --- /dev/null +++ b/drivers/soc/sophgo/Kconfig @@ -0,0 +1,21 @@ +# SPDX-License-Identifier: GPL-2.0-only +# +# Sophgo SoC drivers +# + +if ARCH_SOPHGO || COMPILE_TEST +menu "Sophgo SoC drivers" + +config SOPHGO_SG2044_TOPSYS + tristate "Sophgo SG2044 TOP syscon driver" + select MFD_CORE + help + This is the core driver for the Sophgo SG2044 TOP system + controller device. This driver provide PLL clock device + for the SoC. + + This driver can also be built as a module. If so, the module + will be called sg2044-topsys. + +endmenu +endif diff --git a/drivers/soc/sophgo/Makefile b/drivers/soc/sophgo/Makefile new file mode 100644 index 000000000000..171a2922d75b --- /dev/null +++ b/drivers/soc/sophgo/Makefile @@ -0,0 +1,3 @@ +# SPDX-License-Identifier: GPL-2.0 + +obj-$(CONFIG_SOPHGO_SG2044_TOPSYS) +=3D sg2044-topsys.o diff --git a/drivers/soc/sophgo/sg2044-topsys.c b/drivers/soc/sophgo/sg2044= -topsys.c new file mode 100644 index 000000000000..179f2620b2a9 --- /dev/null +++ b/drivers/soc/sophgo/sg2044-topsys.c @@ -0,0 +1,45 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Sophgo SG2044 multi-function system controller driver + * + * Copyright (C) 2025 Inochi Amaoto + */ + +#include +#include +#include +#include +#include + +static const struct mfd_cell sg2044_topsys_subdev[] =3D { + { + .name =3D "sg2044-pll", + }, +}; + +static int sg2044_topsys_probe(struct platform_device *pdev) +{ + return devm_mfd_add_devices(&pdev->dev, PLATFORM_DEVID_AUTO, + sg2044_topsys_subdev, + ARRAY_SIZE(sg2044_topsys_subdev), + NULL, 0, NULL); +} + +static const struct of_device_id sg2044_topsys_of_match[] =3D { + { .compatible =3D "sophgo,sg2044-top-syscon" }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, sg2044_topsys_of_match); + +static struct platform_driver sg2044_topsys_driver =3D { + .probe =3D sg2044_topsys_probe, + .driver =3D { + .name =3D "sg2044-topsys", + .of_match_table =3D sg2044_topsys_of_match, + }, +}; +module_platform_driver(sg2044_topsys_driver); + +MODULE_AUTHOR("Inochi Amaoto "); +MODULE_DESCRIPTION("Sophgo SG2044 multi-function system controller driver"= ); +MODULE_LICENSE("GPL"); --=20 2.49.0