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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
commit | 2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch) | |
tree | 848558de17fb3008cdf4d861b01ac7781903ce39 /drivers/video/fbdev/via/via_aux_vt1632.c | |
parent | Initial commit. (diff) | |
download | linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip |
Adding upstream version 6.1.76.upstream/6.1.76
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/video/fbdev/via/via_aux_vt1632.c')
-rw-r--r-- | drivers/video/fbdev/via/via_aux_vt1632.c | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/drivers/video/fbdev/via/via_aux_vt1632.c b/drivers/video/fbdev/via/via_aux_vt1632.c new file mode 100644 index 000000000..72f286ae6 --- /dev/null +++ b/drivers/video/fbdev/via/via_aux_vt1632.c @@ -0,0 +1,39 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Copyright 2011 Florian Tobias Schandinat <FlorianSchandinat@gmx.de> + */ +/* + * driver for VIA VT1632 DVI Transmitter + */ + +#include <linux/slab.h> +#include "via_aux.h" + + +static const char *name = "VT1632 DVI Transmitter"; + + +static void probe(struct via_aux_bus *bus, u8 addr) +{ + struct via_aux_drv drv = { + .bus = bus, + .addr = addr, + .name = name}; + /* check vendor id and device id */ + const u8 id[] = {0x06, 0x11, 0x92, 0x31}, len = ARRAY_SIZE(id); + u8 tmp[ARRAY_SIZE(id)]; + + if (!via_aux_read(&drv, 0x00, tmp, len) || memcmp(id, tmp, len)) + return; + + printk(KERN_INFO "viafb: Found %s at address 0x%x\n", name, addr); + via_aux_add(&drv); +} + +void via_aux_vt1632_probe(struct via_aux_bus *bus) +{ + u8 i; + + for (i = 0x08; i <= 0x0F; i++) + probe(bus, i); +} |