adt7475.c (976e3645923bdd2fe7893aae33fd7a21098bfb28) adt7475.c (cf3ca1877574a306c0207cbf7fdf25419d9229df)
1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * adt7475 - Thermal sensor driver for the ADT7475 chip and derivatives
4 * Copyright (C) 2007-2008, Advanced Micro Devices, Inc.
5 * Copyright (C) 2008 Jordan Crouse <jordan@cosmicpenguin.net>
6 * Copyright (C) 2008 Hans de Goede <hdegoede@redhat.com>
7 * Copyright (C) 2009 Jean Delvare <jdelvare@suse.de>
8 *

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289}
290
291static inline u16 volt2reg(int channel, long volt, u8 bypass_attn)
292{
293 const int *r = adt7473_in_scaling[channel];
294 long reg;
295
296 if (bypass_attn & (1 << channel))
1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * adt7475 - Thermal sensor driver for the ADT7475 chip and derivatives
4 * Copyright (C) 2007-2008, Advanced Micro Devices, Inc.
5 * Copyright (C) 2008 Jordan Crouse <jordan@cosmicpenguin.net>
6 * Copyright (C) 2008 Hans de Goede <hdegoede@redhat.com>
7 * Copyright (C) 2009 Jean Delvare <jdelvare@suse.de>
8 *

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289}
290
291static inline u16 volt2reg(int channel, long volt, u8 bypass_attn)
292{
293 const int *r = adt7473_in_scaling[channel];
294 long reg;
295
296 if (bypass_attn & (1 << channel))
297 reg = (volt * 1024) / 2250;
297 reg = DIV_ROUND_CLOSEST(volt * 1024, 2250);
298 else
298 else
299 reg = (volt * r[1] * 1024) / ((r[0] + r[1]) * 2250);
299 reg = DIV_ROUND_CLOSEST(volt * r[1] * 1024,
300 (r[0] + r[1]) * 2250);
300 return clamp_val(reg, 0, 1023) & (0xff << 2);
301}
302
303static int adt7475_read_word(struct i2c_client *client, int reg)
304{
305 int val1, val2;
306
307 val1 = i2c_smbus_read_byte_data(client, reg);

--- 1532 unchanged lines hidden --- 		301 return clamp_val(reg, 0, 1023) & (0xff << 2);
302}
303
304static int adt7475_read_word(struct i2c_client *client, int reg)
305{
306 int val1, val2;
307
308 val1 = i2c_smbus_read_byte_data(client, reg);

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