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bf4afc53b7
This was done entirely with mindless brute force, using
git grep -l '\<k[vmz]*alloc_objs*(.*, GFP_KERNEL)' |
xargs sed -i 's/\(alloc_objs*(.*\), GFP_KERNEL)/\1)/'
to convert the new alloc_obj() users that had a simple GFP_KERNEL
argument to just drop that argument.
Note that due to the extreme simplicity of the scripting, any slightly
more complex cases spread over multiple lines would not be triggered:
they definitely exist, but this covers the vast bulk of the cases, and
the resulting diff is also then easier to check automatically.
For the same reason the 'flex' versions will be done as a separate
conversion.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
127 lines
3.2 KiB
C
127 lines
3.2 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Cirrus Logic cs3308 8-Channel Analog Volume Control
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*
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* Copyright (C) 2010 Devin Heitmueller <dheitmueller@kernellabs.com>
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* Copyright (C) 2012 Steven Toth <stoth@kernellabs.com>
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*
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* Derived from cs5345.c Copyright (C) 2007 Hans Verkuil
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*/
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/i2c.h>
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#include <linux/slab.h>
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#include <linux/videodev2.h>
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#include <media/v4l2-device.h>
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MODULE_DESCRIPTION("i2c device driver for cs3308 8-channel volume control");
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MODULE_AUTHOR("Devin Heitmueller");
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MODULE_LICENSE("GPL");
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static inline int cs3308_write(struct v4l2_subdev *sd, u8 reg, u8 value)
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{
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struct i2c_client *client = v4l2_get_subdevdata(sd);
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return i2c_smbus_write_byte_data(client, reg, value);
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}
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static inline int cs3308_read(struct v4l2_subdev *sd, u8 reg)
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{
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struct i2c_client *client = v4l2_get_subdevdata(sd);
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return i2c_smbus_read_byte_data(client, reg);
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}
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#ifdef CONFIG_VIDEO_ADV_DEBUG
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static int cs3308_g_register(struct v4l2_subdev *sd, struct v4l2_dbg_register *reg)
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{
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reg->val = cs3308_read(sd, reg->reg & 0xffff);
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reg->size = 1;
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return 0;
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}
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static int cs3308_s_register(struct v4l2_subdev *sd, const struct v4l2_dbg_register *reg)
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{
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cs3308_write(sd, reg->reg & 0xffff, reg->val & 0xff);
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return 0;
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}
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#endif
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/* ----------------------------------------------------------------------- */
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static const struct v4l2_subdev_core_ops cs3308_core_ops = {
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#ifdef CONFIG_VIDEO_ADV_DEBUG
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.g_register = cs3308_g_register,
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.s_register = cs3308_s_register,
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#endif
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};
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static const struct v4l2_subdev_ops cs3308_ops = {
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.core = &cs3308_core_ops,
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};
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/* ----------------------------------------------------------------------- */
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static int cs3308_probe(struct i2c_client *client)
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{
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struct v4l2_subdev *sd;
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unsigned i;
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/* Check if the adapter supports the needed features */
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if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
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return -EIO;
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if ((i2c_smbus_read_byte_data(client, 0x1c) & 0xf0) != 0xe0)
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return -ENODEV;
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v4l_info(client, "chip found @ 0x%x (%s)\n",
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client->addr << 1, client->adapter->name);
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sd = kzalloc_obj(struct v4l2_subdev);
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if (sd == NULL)
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return -ENOMEM;
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v4l2_i2c_subdev_init(sd, client, &cs3308_ops);
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/* Set some reasonable defaults */
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cs3308_write(sd, 0x0d, 0x00); /* Power up all channels */
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cs3308_write(sd, 0x0e, 0x00); /* Master Power */
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cs3308_write(sd, 0x0b, 0x00); /* Device Configuration */
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/* Set volume for each channel */
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for (i = 1; i <= 8; i++)
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cs3308_write(sd, i, 0xd2);
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cs3308_write(sd, 0x0a, 0x00); /* Unmute all channels */
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return 0;
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}
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/* ----------------------------------------------------------------------- */
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static void cs3308_remove(struct i2c_client *client)
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{
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struct v4l2_subdev *sd = i2c_get_clientdata(client);
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v4l2_device_unregister_subdev(sd);
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kfree(sd);
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}
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/* ----------------------------------------------------------------------- */
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static const struct i2c_device_id cs3308_id[] = {
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{ "cs3308" },
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{ }
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};
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MODULE_DEVICE_TABLE(i2c, cs3308_id);
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static struct i2c_driver cs3308_driver = {
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.driver = {
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.name = "cs3308",
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},
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.probe = cs3308_probe,
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.remove = cs3308_remove,
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.id_table = cs3308_id,
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};
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module_i2c_driver(cs3308_driver);
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