From 2c3c1048746a4622d8c89a29670120dc8fab93c4 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 20:49:45 +0200 Subject: Adding upstream version 6.1.76. Signed-off-by: Daniel Baumann --- drivers/video/fbdev/via/via_aux.c | 73 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 73 insertions(+) create mode 100644 drivers/video/fbdev/via/via_aux.c (limited to 'drivers/video/fbdev/via/via_aux.c') diff --git a/drivers/video/fbdev/via/via_aux.c b/drivers/video/fbdev/via/via_aux.c new file mode 100644 index 000000000..902191ddd --- /dev/null +++ b/drivers/video/fbdev/via/via_aux.c @@ -0,0 +1,73 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Copyright 2011 Florian Tobias Schandinat + */ +/* + * infrastructure for devices connected via I2C + */ + +#include +#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; +} -- cgit v1.2.3