diff options
| -rw-r--r-- | drivers/media/dvb-frontends/rtl2832.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/media/dvb-frontends/rtl2832.c b/drivers/media/dvb-frontends/rtl2832.c index e59765fa8e7c..66f915dd24a6 100644 --- a/drivers/media/dvb-frontends/rtl2832.c +++ b/drivers/media/dvb-frontends/rtl2832.c @@ -986,6 +986,22 @@ static struct dvb_frontend_ops rtl2832_ops = { .read_ber = rtl2832_read_ber, }; +static bool rtl2832_volatile_reg(struct device *dev, unsigned int reg) +{ + switch (reg) { + case 0x305: + case 0x33c: + case 0x34e: + case 0x351: + case 0x40c ... 0x40d: + return true; + default: + break; + } + + return false; +} + /* * We implement own I2C access routines for regmap in order to get manual access * to I2C adapter lock, which is needed for I2C mux adapter. @@ -1240,9 +1256,11 @@ static int rtl2832_probe(struct i2c_client *client, static const struct regmap_config regmap_config = { .reg_bits = 8, .val_bits = 8, + .volatile_reg = rtl2832_volatile_reg, .max_register = 5 * 0x100, .ranges = regmap_range_cfg, .num_ranges = ARRAY_SIZE(regmap_range_cfg), + .cache_type = REGCACHE_RBTREE, }; dev_dbg(&client->dev, "\n"); |