// SPDX-License-Identifier: GPL-2.0-or-later /* * Copyright 2011 Florian Tobias Schandinat <FlorianSchandinat@gmx.de> */ /* * infrastructure for devices connected via I2C */ #include <linux/slab.h> #include "via_aux.h" struct via_aux_bus *via_aux_probe(struct i2c_adapter *adap) { struct via_aux_bus *bus; if (!adap) return NULL; bus = kmalloc(sizeof(*bus), GFP_KERNEL); if (!bus) return NULL; bus->adap = adap; INIT_LIST_HEAD(&bus->drivers); via_aux_edid_probe(bus); via_aux_vt1636_probe(bus); via_aux_vt1632_probe(bus); via_aux_vt1631_probe(bus); via_aux_vt1625_probe(bus); via_aux_vt1622_probe(bus); via_aux_vt1621_probe(bus); via_aux_sii164_probe(bus); via_aux_ch7301_probe(bus); return bus; } void via_aux_free(struct via_aux_bus *bus) { struct via_aux_drv *pos, *n; if (!bus) return; list_for_each_entry_safe(pos, n, &bus->drivers, chain) { if (pos->cleanup) pos->cleanup(pos); list_del(&pos->chain); kfree(pos->data); kfree(pos); } kfree(bus); } const struct fb_videomode *via_aux_get_preferred_mode(struct via_aux_bus *bus) { struct via_aux_drv *pos; const struct fb_videomode *mode = NULL; if (!bus) return NULL; list_for_each_entry(pos, &bus->drivers, chain) { if (pos->get_preferred_mode) mode = pos->get_preferred_mode(pos); } return mode; }