From: Hans Verkuil <hverkuil@xs4all.nl>
Date: Sun, 29 Mar 2009 20:47:30 +0000 (-0300)
Subject: V4L/DVB (11305): cx88: prevent probing rtc and ir devices
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=43d5eab7d632de5bde582d41b5d0eac01b52bb3a;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git
V4L/DVB (11305): cx88: prevent probing rtc and ir devices
tuner-core.c contains a hack for cx88 board to prevent probing of certain
addresses:
/* HACK: Ignore 0x6b and 0x6f on cx88 boards.
* FusionHDTV5 RT Gold has an ir receiver at 0x6b
* and an RTC at 0x6f which can get corrupted if probed.
*/
With the new i2c API this hack no longer works. So instead change the
list of tuner probe addresses in the cx88 driver itself, which is much
more clean.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---
diff --git a/drivers/media/video/cx88/cx88-cards.c b/drivers/media/video/cx88/cx88-cards.c
index c226fff49f23..0363971a23a8 100644
--- a/drivers/media/video/cx88/cx88-cards.c
+++ b/drivers/media/video/cx88/cx88-cards.c
@@ -3205,6 +3205,15 @@ struct cx88_core *cx88_core_create(struct pci_dev *pci, int nr)
/* load tuner module, if needed */
if (TUNER_ABSENT != core->board.tuner_type) {
+ /* Ignore 0x6b and 0x6f on cx88 boards.
+ * FusionHDTV5 RT Gold has an ir receiver at 0x6b
+ * and an RTC at 0x6f which can get corrupted if probed. */
+ static const unsigned short tv_addrs[] = {
+ 0x42, 0x43, 0x4a, 0x4b, /* tda8290 */
+ 0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67,
+ 0x68, 0x69, 0x6a, 0x6c, 0x6d, 0x6e,
+ I2C_CLIENT_END
+ };
int has_demod = (core->board.tda9887_conf & TDA9887_PRESENT);
/* I don't trust the radio_type as is stored in the card
@@ -3218,11 +3227,8 @@ struct cx88_core *cx88_core_create(struct pci_dev *pci, int nr)
v4l2_i2c_new_probed_subdev(&core->i2c_adap, "tuner",
"tuner", v4l2_i2c_tuner_addrs(ADDRS_DEMOD));
if (core->board.tuner_addr == ADDR_UNSET) {
- enum v4l2_i2c_tuner_type type =
- has_demod ? ADDRS_TV_WITH_DEMOD : ADDRS_TV;
-
v4l2_i2c_new_probed_subdev(&core->i2c_adap, "tuner",
- "tuner", v4l2_i2c_tuner_addrs(type));
+ "tuner", has_demod ? tv_addrs + 4 : tv_addrs);
} else {
v4l2_i2c_new_subdev(&core->i2c_adap,
"tuner", "tuner", core->board.tuner_addr);