mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-12-28 16:56:26 +00:00
cdd30ebb1b
Clean up the existing export namespace code along the same lines of
commit 33def8498f ("treewide: Convert macro and uses of __section(foo)
to __section("foo")") and for the same reason, it is not desired for the
namespace argument to be a macro expansion itself.
Scripted using
git grep -l -e MODULE_IMPORT_NS -e EXPORT_SYMBOL_NS | while read file;
do
awk -i inplace '
/^#define EXPORT_SYMBOL_NS/ {
gsub(/__stringify\(ns\)/, "ns");
print;
next;
}
/^#define MODULE_IMPORT_NS/ {
gsub(/__stringify\(ns\)/, "ns");
print;
next;
}
/MODULE_IMPORT_NS/ {
$0 = gensub(/MODULE_IMPORT_NS\(([^)]*)\)/, "MODULE_IMPORT_NS(\"\\1\")", "g");
}
/EXPORT_SYMBOL_NS/ {
if ($0 ~ /(EXPORT_SYMBOL_NS[^(]*)\(([^,]+),/) {
if ($0 !~ /(EXPORT_SYMBOL_NS[^(]*)\(([^,]+), ([^)]+)\)/ &&
$0 !~ /(EXPORT_SYMBOL_NS[^(]*)\(\)/ &&
$0 !~ /^my/) {
getline line;
gsub(/[[:space:]]*\\$/, "");
gsub(/[[:space:]]/, "", line);
$0 = $0 " " line;
}
$0 = gensub(/(EXPORT_SYMBOL_NS[^(]*)\(([^,]+), ([^)]+)\)/,
"\\1(\\2, \"\\3\")", "g");
}
}
{ print }' $file;
done
Requested-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://mail.google.com/mail/u/2/#inbox/FMfcgzQXKWgMmjdFwwdsfgxzKpVHWPlc
Acked-by: Greg KH <gregkh@linuxfoundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
73 lines
2.2 KiB
C
73 lines
2.2 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Shared library for Kinetic's ExpressWire protocol.
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* This protocol works by pulsing the ExpressWire IC's control GPIO.
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* ktd2692 and ktd2801 are known to use this protocol.
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*/
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#include <linux/bits.h>
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#include <linux/delay.h>
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#include <linux/export.h>
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#include <linux/gpio/consumer.h>
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#include <linux/types.h>
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#include <linux/leds-expresswire.h>
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void expresswire_power_off(struct expresswire_common_props *props)
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{
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gpiod_set_value_cansleep(props->ctrl_gpio, 0);
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usleep_range(props->timing.poweroff_us, props->timing.poweroff_us * 2);
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}
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EXPORT_SYMBOL_NS_GPL(expresswire_power_off, "EXPRESSWIRE");
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void expresswire_enable(struct expresswire_common_props *props)
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{
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gpiod_set_value(props->ctrl_gpio, 1);
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udelay(props->timing.detect_delay_us);
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gpiod_set_value(props->ctrl_gpio, 0);
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udelay(props->timing.detect_us);
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gpiod_set_value(props->ctrl_gpio, 1);
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}
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EXPORT_SYMBOL_NS_GPL(expresswire_enable, "EXPRESSWIRE");
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void expresswire_start(struct expresswire_common_props *props)
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{
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gpiod_set_value(props->ctrl_gpio, 1);
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udelay(props->timing.data_start_us);
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}
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EXPORT_SYMBOL_NS_GPL(expresswire_start, "EXPRESSWIRE");
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void expresswire_end(struct expresswire_common_props *props)
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{
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gpiod_set_value(props->ctrl_gpio, 0);
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udelay(props->timing.end_of_data_low_us);
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gpiod_set_value(props->ctrl_gpio, 1);
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udelay(props->timing.end_of_data_high_us);
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}
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EXPORT_SYMBOL_NS_GPL(expresswire_end, "EXPRESSWIRE");
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void expresswire_set_bit(struct expresswire_common_props *props, bool bit)
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{
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if (bit) {
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gpiod_set_value(props->ctrl_gpio, 0);
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udelay(props->timing.short_bitset_us);
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gpiod_set_value(props->ctrl_gpio, 1);
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udelay(props->timing.long_bitset_us);
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} else {
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gpiod_set_value(props->ctrl_gpio, 0);
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udelay(props->timing.long_bitset_us);
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gpiod_set_value(props->ctrl_gpio, 1);
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udelay(props->timing.short_bitset_us);
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}
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}
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EXPORT_SYMBOL_NS_GPL(expresswire_set_bit, "EXPRESSWIRE");
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void expresswire_write_u8(struct expresswire_common_props *props, u8 val)
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{
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expresswire_start(props);
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for (int i = 7; i >= 0; i--)
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expresswire_set_bit(props, val & BIT(i));
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expresswire_end(props);
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}
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EXPORT_SYMBOL_NS_GPL(expresswire_write_u8, "EXPRESSWIRE");
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