cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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via_aux.c (1326B)

      1// SPDX-License-Identifier: GPL-2.0-or-later
      2/*
      3 * Copyright 2011 Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
      4 */
      5/*
      6 * infrastructure for devices connected via I2C
      7 */
      8
      9#include <linux/slab.h>
     10#include "via_aux.h"
     11
     12
     13struct via_aux_bus *via_aux_probe(struct i2c_adapter *adap)
     14{
     15	struct via_aux_bus *bus;
     16
     17	if (!adap)
     18		return NULL;
     19
     20	bus = kmalloc(sizeof(*bus), GFP_KERNEL);
     21	if (!bus)
     22		return NULL;
     23
     24	bus->adap = adap;
     25	INIT_LIST_HEAD(&bus->drivers);
     26
     27	via_aux_edid_probe(bus);
     28	via_aux_vt1636_probe(bus);
     29	via_aux_vt1632_probe(bus);
     30	via_aux_vt1631_probe(bus);
     31	via_aux_vt1625_probe(bus);
     32	via_aux_vt1622_probe(bus);
     33	via_aux_vt1621_probe(bus);
     34	via_aux_sii164_probe(bus);
     35	via_aux_ch7301_probe(bus);
     36
     37	return bus;
     38}
     39
     40void via_aux_free(struct via_aux_bus *bus)
     41{
     42	struct via_aux_drv *pos, *n;
     43
     44	if (!bus)
     45		return;
     46
     47	list_for_each_entry_safe(pos, n, &bus->drivers, chain) {
     48		if (pos->cleanup)
     49			pos->cleanup(pos);
     50
     51		list_del(&pos->chain);
     52		kfree(pos->data);
     53		kfree(pos);
     54	}
     55
     56	kfree(bus);
     57}
     58
     59const struct fb_videomode *via_aux_get_preferred_mode(struct via_aux_bus *bus)
     60{
     61	struct via_aux_drv *pos;
     62	const struct fb_videomode *mode = NULL;
     63
     64	if (!bus)
     65		return NULL;
     66
     67	list_for_each_entry(pos, &bus->drivers, chain) {
     68		if (pos->get_preferred_mode)
     69			mode = pos->get_preferred_mode(pos);
     70	}
     71
     72	return mode;
     73}