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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/input/touchscreen/tsc2005.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/input/touchscreen/tsc2005.c')
| -rw-r--r-- | drivers/input/touchscreen/tsc2005.c | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/drivers/input/touchscreen/tsc2005.c b/drivers/input/touchscreen/tsc2005.c new file mode 100644 index 000000000..6fe8b41b3 --- /dev/null +++ b/drivers/input/touchscreen/tsc2005.c @@ -0,0 +1,89 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * TSC2005 touchscreen driver + * + * Copyright (C) 2006-2010 Nokia Corporation + * Copyright (C) 2015 QWERTY Embedded Design + * Copyright (C) 2015 EMAC Inc. + * + * Based on original tsc2005.c by Lauri Leukkunen <lauri.leukkunen@nokia.com> + */ + +#include <linux/input.h> +#include <linux/module.h> +#include <linux/of.h> +#include <linux/spi/spi.h> +#include <linux/regmap.h> +#include "tsc200x-core.h" + +static const struct input_id tsc2005_input_id = { + .bustype = BUS_SPI, + .product = 2005, +}; + +static int tsc2005_cmd(struct device *dev, u8 cmd) +{ + u8 tx = TSC200X_CMD | TSC200X_CMD_12BIT | cmd; + struct spi_transfer xfer = { + .tx_buf = &tx, + .len = 1, + .bits_per_word = 8, + }; + struct spi_message msg; + struct spi_device *spi = to_spi_device(dev); + int error; + + spi_message_init(&msg); + spi_message_add_tail(&xfer, &msg); + + error = spi_sync(spi, &msg); + if (error) { + dev_err(dev, "%s: failed, command: %x, spi error: %d\n", + __func__, cmd, error); + return error; + } + + return 0; +} + +static int tsc2005_probe(struct spi_device *spi) +{ + int error; + + spi->mode = SPI_MODE_0; + spi->bits_per_word = 8; + if (!spi->max_speed_hz) + spi->max_speed_hz = TSC2005_SPI_MAX_SPEED_HZ; + + error = spi_setup(spi); + if (error) + return error; + + return tsc200x_probe(&spi->dev, spi->irq, &tsc2005_input_id, + devm_regmap_init_spi(spi, &tsc200x_regmap_config), + tsc2005_cmd); +} + +#ifdef CONFIG_OF +static const struct of_device_id tsc2005_of_match[] = { + { .compatible = "ti,tsc2005" }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, tsc2005_of_match); +#endif + +static struct spi_driver tsc2005_driver = { + .driver = { + .name = "tsc2005", + .dev_groups = tsc200x_groups, + .of_match_table = of_match_ptr(tsc2005_of_match), + .pm = pm_sleep_ptr(&tsc200x_pm_ops), + }, + .probe = tsc2005_probe, +}; +module_spi_driver(tsc2005_driver); + +MODULE_AUTHOR("Michael Welling <mwelling@ieee.org>"); +MODULE_DESCRIPTION("TSC2005 Touchscreen Driver"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("spi:tsc2005"); |
