From 3a2c4d55e32ad65efebdb6de44eef3bfa08bb49d Mon Sep 17 00:00:00 2001 From: Kees Cook Date: Wed, 2 Sep 2026 15:31:14 -0700 Subject: treewide: refresh kmalloc_obj() conversions This is another run of the Coccinelle script for converting kmalloc() family of allocations to kmalloc_obj() via the existing rules in scripts/coccinelle/api/kmalloc_objs.cocci This catches both the set of kmalloc() uses added since the first kmalloc_obj() conversions in v7.0 and adds a large group missed in the first pass due to Coccinelle not interacting well with the cleanup.h scoped_...() family of macros[1]. I worked around this with spatch's "--macro-file" argument to a file with all the scoped_...() macros mapped to Coccinelle's YACFE_ITERATOR[2] as that was the closest viable control flow indicator I could find. Build tested allmodconfig on x86, arm64, arm, loongarch, mips, powerpc, riscv, and s390 with no new warnings. Link: https://lore.kernel.org/lkml/202609021314.8A9C0B8@keescook/ [1] Link: https://github.com/coccinelle/coccinelle/blob/master/standard.h [2] Signed-off-by: Kees Cook --- drivers/soc/sophgo/Kconfig | 34 ++++++++++++++++++++ drivers/soc/sophgo/Makefile | 4 +++ drivers/soc/sophgo/cv1800-rtcsys.c | 63 ++++++++++++++++++++++++++++++++++++++ drivers/soc/sophgo/sg2044-topsys.c | 44 ++++++++++++++++++++++++++ 4 files changed, 145 insertions(+) create mode 100644 drivers/soc/sophgo/Kconfig create mode 100644 drivers/soc/sophgo/Makefile create mode 100644 drivers/soc/sophgo/cv1800-rtcsys.c create mode 100644 drivers/soc/sophgo/sg2044-topsys.c (limited to 'drivers/soc/sophgo') diff --git a/drivers/soc/sophgo/Kconfig b/drivers/soc/sophgo/Kconfig new file mode 100644 index 000000000..45f78b270 --- /dev/null +++ b/drivers/soc/sophgo/Kconfig @@ -0,0 +1,34 @@ +# SPDX-License-Identifier: GPL-2.0-only +# +# Sophgo SoC drivers +# + +if ARCH_SOPHGO || COMPILE_TEST +menu "Sophgo SoC drivers" + +config SOPHGO_CV1800_RTCSYS + tristate "Sophgo CV1800 RTC MFD" + select MFD_CORE + help + If you say yes here you get support the RTC MFD driver for Sophgo + CV1800 series SoC. The RTC module comprises a 32kHz oscillator, + Power-on-Reset (PoR) sub-module, HW state machine to control chip + power-on, power-off and reset. Furthermore, the 8051 subsystem is + located within RTCSYS including associated SRAM block. + + This driver can also be built as a module. If so, the module will be + called cv1800-rtcsys. + +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 000000000..27f68df22 --- /dev/null +++ b/drivers/soc/sophgo/Makefile @@ -0,0 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0 + +obj-$(CONFIG_SOPHGO_CV1800_RTCSYS) += cv1800-rtcsys.o +obj-$(CONFIG_SOPHGO_SG2044_TOPSYS) += sg2044-topsys.o diff --git a/drivers/soc/sophgo/cv1800-rtcsys.c b/drivers/soc/sophgo/cv1800-rtcsys.c new file mode 100644 index 000000000..fdae2e2a6 --- /dev/null +++ b/drivers/soc/sophgo/cv1800-rtcsys.c @@ -0,0 +1,63 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Driver for Sophgo CV1800 series SoC RTC subsystem + * + * The RTC module comprises a 32kHz oscillator, Power-on-Reset (PoR) sub-module, + * HW state machine to control chip power-on, power-off and reset. Furthermore, + * the 8051 subsystem is located within RTCSYS including associated SRAM block. + * + * Copyright (C) 2025 Alexander Sverdlin + * + */ + +#include +#include +#include +#include + +static struct resource cv1800_rtcsys_irq_resources[] = { + DEFINE_RES_IRQ_NAMED(0, "alarm"), +}; + +static const struct mfd_cell cv1800_rtcsys_subdev[] = { + { + .name = "cv1800b-rtc", + .num_resources = 1, + .resources = &cv1800_rtcsys_irq_resources[0], + }, +}; + +static int cv1800_rtcsys_probe(struct platform_device *pdev) +{ + int irq; + + irq = platform_get_irq_byname(pdev, "alarm"); + if (irq < 0) + return irq; + cv1800_rtcsys_irq_resources[0].start = irq; + cv1800_rtcsys_irq_resources[0].end = irq; + + return devm_mfd_add_devices(&pdev->dev, PLATFORM_DEVID_AUTO, + cv1800_rtcsys_subdev, + ARRAY_SIZE(cv1800_rtcsys_subdev), + NULL, 0, NULL); +} + +static const struct of_device_id cv1800_rtcsys_of_match[] = { + { .compatible = "sophgo,cv1800b-rtc" }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, cv1800_rtcsys_of_match); + +static struct platform_driver cv1800_rtcsys_mfd = { + .probe = cv1800_rtcsys_probe, + .driver = { + .name = "cv1800_rtcsys", + .of_match_table = cv1800_rtcsys_of_match, + }, +}; +module_platform_driver(cv1800_rtcsys_mfd); + +MODULE_AUTHOR("Alexander Sverdlin "); +MODULE_DESCRIPTION("Sophgo CV1800 series SoC RTC subsystem driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/soc/sophgo/sg2044-topsys.c b/drivers/soc/sophgo/sg2044-topsys.c new file mode 100644 index 000000000..af0a374f1 --- /dev/null +++ b/drivers/soc/sophgo/sg2044-topsys.c @@ -0,0 +1,44 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Sophgo SG2044 multi-function system controller driver + * + * Copyright (C) 2025 Inochi Amaoto + */ + +#include +#include +#include +#include + +static const struct mfd_cell sg2044_topsys_subdev[] = { + { + .name = "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[] = { + { .compatible = "sophgo,sg2044-top-syscon" }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, sg2044_topsys_of_match); + +static struct platform_driver sg2044_topsys_driver = { + .probe = sg2044_topsys_probe, + .driver = { + .name = "sg2044-topsys", + .of_match_table = 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"); -- cgit v1.3.1