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| author | Kees Cook <kees+treewide@kernel.org> | 2026-09-02 15:31:14 -0700 |
|---|---|---|
| committer | Kees Cook <kees@kernel.org> | 2026-09-04 21:37:00 -0700 |
| commit | 3a2c4d55e32ad65efebdb6de44eef3bfa08bb49d (patch) | |
| tree | c65086f9bdcd48c6360fb7cb4598bca084da1f32 /drivers/clk/sprd/common.c | |
| download | linux-stable-3a2c4d55e32ad65efebdb6de44eef3bfa08bb49d.tar.gz linux-stable-3a2c4d55e32ad65efebdb6de44eef3bfa08bb49d.zip | |
treewide: refresh kmalloc_obj() conversionsgrafted
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 <kees+treewide@kernel.org>
Diffstat (limited to 'drivers/clk/sprd/common.c')
| -rw-r--r-- | drivers/clk/sprd/common.c | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/drivers/clk/sprd/common.c b/drivers/clk/sprd/common.c new file mode 100644 index 000000000..0f2181617 --- /dev/null +++ b/drivers/clk/sprd/common.c @@ -0,0 +1,113 @@ +// SPDX-License-Identifier: GPL-2.0 +// +// Spreadtrum clock infrastructure +// +// Copyright (C) 2017 Spreadtrum, Inc. +// Author: Chunyan Zhang <chunyan.zhang@spreadtrum.com> + +#include <linux/mfd/syscon.h> +#include <linux/module.h> +#include <linux/of_address.h> +#include <linux/platform_device.h> +#include <linux/regmap.h> + +#include "common.h" + +static const struct regmap_config sprdclk_regmap_config = { + .reg_bits = 32, + .reg_stride = 4, + .val_bits = 32, + .fast_io = true, +}; + +static void sprd_clk_set_regmap(const struct sprd_clk_desc *desc, + struct regmap *regmap) +{ + int i; + struct sprd_clk_common *cclk; + + for (i = 0; i < desc->num_clk_clks; i++) { + cclk = desc->clk_clks[i]; + if (!cclk) + continue; + + cclk->regmap = regmap; + } +} + +int sprd_clk_regmap_init(struct platform_device *pdev, + const struct sprd_clk_desc *desc) +{ + void __iomem *base; + struct device *dev = &pdev->dev; + struct device_node *node = dev->of_node, *np; + struct regmap *regmap; + struct resource *res; + struct regmap_config reg_config = sprdclk_regmap_config; + + if (of_property_present(node, "sprd,syscon")) { + regmap = syscon_regmap_lookup_by_phandle(node, "sprd,syscon"); + if (IS_ERR(regmap)) { + pr_err("%s: failed to get syscon regmap\n", __func__); + return PTR_ERR(regmap); + } + } else if (of_device_is_compatible(np = of_get_parent(node), "syscon") || + (of_node_put(np), 0)) { + regmap = device_node_to_regmap(np); + of_node_put(np); + if (IS_ERR(regmap)) { + dev_err(dev, "failed to get regmap from its parent.\n"); + return PTR_ERR(regmap); + } + } else { + base = devm_platform_get_and_ioremap_resource(pdev, 0, &res); + if (IS_ERR(base)) + return PTR_ERR(base); + + reg_config.max_register = resource_size(res) - reg_config.reg_stride; + + regmap = devm_regmap_init_mmio(&pdev->dev, base, + ®_config); + if (IS_ERR(regmap)) { + pr_err("failed to init regmap\n"); + return PTR_ERR(regmap); + } + } + + sprd_clk_set_regmap(desc, regmap); + + return 0; +} +EXPORT_SYMBOL_GPL(sprd_clk_regmap_init); + +int sprd_clk_probe(struct device *dev, struct clk_hw_onecell_data *clkhw) +{ + int i, ret; + struct clk_hw *hw; + + for (i = 0; i < clkhw->num; i++) { + const char *name; + + hw = clkhw->hws[i]; + if (!hw) + continue; + + name = hw->init->name; + ret = devm_clk_hw_register(dev, hw); + if (ret) { + dev_err(dev, "Couldn't register clock %d - %s\n", + i, name); + return ret; + } + } + + ret = devm_of_clk_add_hw_provider(dev, of_clk_hw_onecell_get, clkhw); + if (ret) + dev_err(dev, "Failed to add clock provider\n"); + + return ret; +} +EXPORT_SYMBOL_GPL(sprd_clk_probe); + +MODULE_DESCRIPTION("Spreadtrum clock infrastructure"); +MODULE_LICENSE("GPL v2"); |
