mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
synced 2024-12-28 16:52:18 +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>
112 lines
2.9 KiB
C
112 lines
2.9 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Driver for a 7-segment LED display
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*
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* The decimal point LED present on some devices is currently not
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* supported.
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*
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* Copyright (C) Allied Telesis Labs
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*/
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#include <linux/bitmap.h>
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#include <linux/container_of.h>
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#include <linux/errno.h>
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#include <linux/gpio/consumer.h>
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#include <linux/map_to_7segment.h>
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#include <linux/mod_devicetable.h>
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#include <linux/module.h>
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#include <linux/platform_device.h>
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#include <linux/types.h>
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#include <linux/workqueue.h>
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#include "line-display.h"
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struct seg_led_priv {
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struct linedisp linedisp;
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struct delayed_work work;
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struct gpio_descs *segment_gpios;
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};
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static void seg_led_update(struct work_struct *work)
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{
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struct seg_led_priv *priv = container_of(work, struct seg_led_priv, work.work);
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struct linedisp *linedisp = &priv->linedisp;
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struct linedisp_map *map = linedisp->map;
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DECLARE_BITMAP(values, 8) = { };
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bitmap_set_value8(values, map_to_seg7(&map->map.seg7, linedisp->buf[0]), 0);
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gpiod_set_array_value_cansleep(priv->segment_gpios->ndescs, priv->segment_gpios->desc,
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priv->segment_gpios->info, values);
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}
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static int seg_led_linedisp_get_map_type(struct linedisp *linedisp)
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{
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struct seg_led_priv *priv = container_of(linedisp, struct seg_led_priv, linedisp);
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INIT_DELAYED_WORK(&priv->work, seg_led_update);
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return LINEDISP_MAP_SEG7;
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}
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static void seg_led_linedisp_update(struct linedisp *linedisp)
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{
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struct seg_led_priv *priv = container_of(linedisp, struct seg_led_priv, linedisp);
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schedule_delayed_work(&priv->work, 0);
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}
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static const struct linedisp_ops seg_led_linedisp_ops = {
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.get_map_type = seg_led_linedisp_get_map_type,
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.update = seg_led_linedisp_update,
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};
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static int seg_led_probe(struct platform_device *pdev)
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{
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struct seg_led_priv *priv;
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struct device *dev = &pdev->dev;
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priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
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if (!priv)
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return -ENOMEM;
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platform_set_drvdata(pdev, priv);
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priv->segment_gpios = devm_gpiod_get_array(dev, "segment", GPIOD_OUT_LOW);
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if (IS_ERR(priv->segment_gpios))
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return PTR_ERR(priv->segment_gpios);
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if (priv->segment_gpios->ndescs < 7 || priv->segment_gpios->ndescs > 8)
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return -EINVAL;
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return linedisp_register(&priv->linedisp, dev, 1, &seg_led_linedisp_ops);
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}
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static void seg_led_remove(struct platform_device *pdev)
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{
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struct seg_led_priv *priv = platform_get_drvdata(pdev);
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cancel_delayed_work_sync(&priv->work);
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linedisp_unregister(&priv->linedisp);
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}
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static const struct of_device_id seg_led_of_match[] = {
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{ .compatible = "gpio-7-segment"},
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{}
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};
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MODULE_DEVICE_TABLE(of, seg_led_of_match);
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static struct platform_driver seg_led_driver = {
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.probe = seg_led_probe,
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.remove = seg_led_remove,
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.driver = {
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.name = "seg-led-gpio",
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.of_match_table = seg_led_of_match,
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},
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};
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module_platform_driver(seg_led_driver);
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MODULE_AUTHOR("Chris Packham <chris.packham@alliedtelesis.co.nz>");
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MODULE_DESCRIPTION("7 segment LED driver");
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MODULE_LICENSE("GPL");
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MODULE_IMPORT_NS("LINEDISP");
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